/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/4_plus_thr/interleaved5.c.bpl -------------------------------------------------------------------------------- This is Ultimate 0.3.0-wip.dk.ample-buchi-601be74-m [2025-02-17 22:47:00,206 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-17 22:47:00,257 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/settings/buchiAutomizer/concurrent-automaton-noLbe.epf [2025-02-17 22:47:00,260 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-17 22:47:00,260 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-17 22:47:00,284 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-17 22:47:00,284 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-17 22:47:00,284 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-17 22:47:00,285 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-17 22:47:00,285 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-17 22:47:00,285 INFO L153 SettingsManager]: * Use SBE=true [2025-02-17 22:47:00,285 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2025-02-17 22:47:00,285 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2025-02-17 22:47:00,285 INFO L153 SettingsManager]: * Use old map elimination=false [2025-02-17 22:47:00,285 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2025-02-17 22:47:00,285 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2025-02-17 22:47:00,285 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2025-02-17 22:47:00,286 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-17 22:47:00,286 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2025-02-17 22:47:00,286 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-17 22:47:00,287 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-17 22:47:00,287 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-17 22:47:00,287 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-17 22:47:00,287 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2025-02-17 22:47:00,287 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2025-02-17 22:47:00,287 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2025-02-17 22:47:00,287 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-17 22:47:00,287 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-17 22:47:00,287 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-17 22:47:00,287 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2025-02-17 22:47:00,288 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-17 22:47:00,288 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-02-17 22:47:00,288 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-17 22:47:00,288 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-17 22:47:00,288 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-17 22:47:00,288 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2025-02-17 22:47:00,288 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR [2025-02-17 22:47:00,506 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-17 22:47:00,513 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-17 22:47:00,514 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-17 22:47:00,516 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2025-02-17 22:47:00,516 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2025-02-17 22:47:00,518 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/cav23-termute-examples/4_plus_thr/interleaved5.c.bpl [2025-02-17 22:47:00,519 INFO L110 BoogieParser]: Parsing: '/storage/cav23-termute-examples/4_plus_thr/interleaved5.c.bpl' [2025-02-17 22:47:00,538 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-17 22:47:00,539 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2025-02-17 22:47:00,539 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-17 22:47:00,540 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-17 22:47:00,540 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-17 22:47:00,548 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "interleaved5.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:47:00" (1/1) ... [2025-02-17 22:47:00,553 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "interleaved5.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:47:00" (1/1) ... [2025-02-17 22:47:00,558 INFO L138 Inliner]: procedures = 6, calls = 5, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2025-02-17 22:47:00,559 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-17 22:47:00,560 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-17 22:47:00,560 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-17 22:47:00,560 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-17 22:47:00,565 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "interleaved5.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:47:00" (1/1) ... [2025-02-17 22:47:00,565 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "interleaved5.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:47:00" (1/1) ... [2025-02-17 22:47:00,567 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "interleaved5.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:47:00" (1/1) ... [2025-02-17 22:47:00,567 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "interleaved5.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:47:00" (1/1) ... [2025-02-17 22:47:00,570 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "interleaved5.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:47:00" (1/1) ... [2025-02-17 22:47:00,571 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "interleaved5.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:47:00" (1/1) ... [2025-02-17 22:47:00,574 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "interleaved5.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:47:00" (1/1) ... [2025-02-17 22:47:00,574 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "interleaved5.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:47:00" (1/1) ... [2025-02-17 22:47:00,575 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "interleaved5.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:47:00" (1/1) ... [2025-02-17 22:47:00,578 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-17 22:47:00,579 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-02-17 22:47:00,579 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-02-17 22:47:00,579 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-02-17 22:47:00,581 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "interleaved5.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:47:00" (1/1) ... [2025-02-17 22:47:00,586 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:47:00,594 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:47:00,632 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 22:47:00,641 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 22:47:00,661 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2025-02-17 22:47:00,661 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-02-17 22:47:00,661 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-02-17 22:47:00,661 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2025-02-17 22:47:00,661 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-02-17 22:47:00,661 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-02-17 22:47:00,662 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2025-02-17 22:47:00,662 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-02-17 22:47:00,662 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-02-17 22:47:00,662 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2025-02-17 22:47:00,663 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-17 22:47:00,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-17 22:47:00,663 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2025-02-17 22:47:00,664 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2025-02-17 22:47:00,664 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2025-02-17 22:47:00,664 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread5 given in one single declaration [2025-02-17 22:47:00,664 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2025-02-17 22:47:00,664 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2025-02-17 22:47:00,664 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 22:47:00,706 INFO L234 CfgBuilder]: Building ICFG [2025-02-17 22:47:00,709 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-17 22:47:00,804 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-17 22:47:00,805 INFO L283 CfgBuilder]: Performing block encoding [2025-02-17 22:47:00,824 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-17 22:47:00,824 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-17 22:47:00,824 INFO L201 PluginConnector]: Adding new model interleaved5.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.02 10:47:00 BoogieIcfgContainer [2025-02-17 22:47:00,825 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-02-17 22:47:00,825 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2025-02-17 22:47:00,825 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2025-02-17 22:47:00,830 INFO L274 PluginConnector]: BuchiAutomizer initialized [2025-02-17 22:47:00,830 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-02-17 22:47:00,830 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "interleaved5.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:47:00" (1/2) ... [2025-02-17 22:47:00,831 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@c52829c and model type interleaved5.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.02 10:47:00, skipping insertion in model container [2025-02-17 22:47:00,832 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-02-17 22:47:00,832 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "interleaved5.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.02 10:47:00" (2/2) ... [2025-02-17 22:47:00,833 INFO L363 chiAutomizerObserver]: Analyzing ICFG interleaved5.c.bpl [2025-02-17 22:47:00,907 INFO L143 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2025-02-17 22:47:00,948 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 58 places, 52 transitions, 139 flow [2025-02-17 22:47:00,974 INFO L124 PetriNetUnfolderBase]: 5/42 cut-off events. [2025-02-17 22:47:00,976 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2025-02-17 22:47:00,980 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63 conditions, 42 events. 5/42 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 102 event pairs, 0 based on Foata normal form. 0/37 useless extension candidates. Maximal degree in co-relation 42. Up to 2 conditions per place. [2025-02-17 22:47:00,980 INFO L82 GeneralOperation]: Start removeDead. Operand has 58 places, 52 transitions, 139 flow [2025-02-17 22:47:00,985 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 53 places, 42 transitions, 114 flow [2025-02-17 22:47:00,995 INFO L306 stractBuchiCegarLoop]: Interprodecural is true [2025-02-17 22:47:00,995 INFO L307 stractBuchiCegarLoop]: Hoare is None [2025-02-17 22:47:00,995 INFO L308 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2025-02-17 22:47:00,996 INFO L309 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2025-02-17 22:47:00,997 INFO L310 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2025-02-17 22:47:00,997 INFO L311 stractBuchiCegarLoop]: Difference is false [2025-02-17 22:47:00,997 INFO L312 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2025-02-17 22:47:00,997 INFO L316 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2025-02-17 22:47:00,998 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 0 states, but on-demand construction may add more states [2025-02-17 22:47:02,001 INFO L131 ngComponentsAnalysis]: Automaton has 391 accepting balls. 10792 [2025-02-17 22:47:02,002 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-17 22:47:02,002 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-17 22:47:02,007 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2025-02-17 22:47:02,007 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2025-02-17 22:47:02,007 INFO L338 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2025-02-17 22:47:02,008 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 10887 states, but on-demand construction may add more states [2025-02-17 22:47:02,253 INFO L131 ngComponentsAnalysis]: Automaton has 391 accepting balls. 10792 [2025-02-17 22:47:02,253 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-17 22:47:02,253 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-17 22:47:02,253 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2025-02-17 22:47:02,253 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2025-02-17 22:47:02,258 INFO L752 eck$LassoCheckResult]: Stem: "[104] $Ultimate##0-->L18: Formula: (and (= v_f3_4 0) (= v_f2_4 0) (= v_x5_1 0) (= v_f1_3 0) (= v_f5_1 0) (= v_x3_5 0) (= v_x1_5 0) (= v_x4_1 0) (= v_f4_2 0) (= v_x2_5 0)) InVars {f4=v_f4_2, f5=v_f5_1, f2=v_f2_4, x4=v_x4_1, f3=v_f3_4, x5=v_x5_1, x2=v_x2_5, f1=v_f1_3, x3=v_x3_5, x1=v_x1_5} OutVars{f4=v_f4_2, f5=v_f5_1, f2=v_f2_4, x4=v_x4_1, f3=v_f3_4, x5=v_x5_1, x2=v_x2_5, f1=v_f1_3, x3=v_x3_5, x1=v_x1_5} AuxVars[] AssignedVars[]" "[153] L18-->L37-1: Formula: (= v_thread1Thread1of1ForFork4_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork4_thidvar0=v_thread1Thread1of1ForFork4_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork4_thidvar0]" [2025-02-17 22:47:02,258 INFO L754 eck$LassoCheckResult]: Loop: "[110] L37-1-->L35: Formula: (< v_x1_1 v_z_1) InVars {x1=v_x1_1, z=v_z_1} OutVars{x1=v_x1_1, z=v_z_1} AuxVars[] AssignedVars[]" "[112] L35-->L36: Formula: (= v_x1_2 (+ v_x1_3 1)) InVars {x1=v_x1_3} OutVars{x1=v_x1_2} AuxVars[] AssignedVars[x1]" "[113] L36-->L37: Formula: (= v_f2_1 1) InVars {} OutVars{f2=v_f2_1} AuxVars[] AssignedVars[f2]" "[114] L37-->L37-1: Formula: (and (< 0 v_f1_6) (= v_f1_5 0)) InVars {f1=v_f1_6} OutVars{f1=v_f1_5} AuxVars[] AssignedVars[f1]" [2025-02-17 22:47:02,264 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:47:02,265 INFO L85 PathProgramCache]: Analyzing trace with hash 4338, now seen corresponding path program 1 times [2025-02-17 22:47:02,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:47:02,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857337410] [2025-02-17 22:47:02,271 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:47:02,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:47:02,324 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:47:02,334 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:47:02,334 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:47:02,334 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:47:02,334 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:47:02,338 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:47:02,340 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:47:02,340 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:47:02,340 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:47:02,356 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:47:02,360 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:47:02,360 INFO L85 PathProgramCache]: Analyzing trace with hash 4311780, now seen corresponding path program 1 times [2025-02-17 22:47:02,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:47:02,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895897505] [2025-02-17 22:47:02,361 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:47:02,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:47:02,367 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-17 22:47:02,372 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-17 22:47:02,372 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:47:02,372 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:47:02,372 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:47:02,375 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-17 22:47:02,376 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-17 22:47:02,376 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:47:02,376 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:47:02,379 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:47:02,383 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:47:02,384 INFO L85 PathProgramCache]: Analyzing trace with hash -285344939, now seen corresponding path program 1 times [2025-02-17 22:47:02,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:47:02,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927104732] [2025-02-17 22:47:02,384 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:47:02,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:47:02,387 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-17 22:47:02,391 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-17 22:47:02,392 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:47:02,392 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:47:02,454 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 22:47:02,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-17 22:47:02,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927104732] [2025-02-17 22:47:02,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1927104732] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-17 22:47:02,455 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-17 22:47:02,456 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-17 22:47:02,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629947531] [2025-02-17 22:47:02,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-17 22:47:02,519 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:47:02,519 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:47:02,519 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:47:02,520 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:47:02,520 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-17 22:47:02,520 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:47:02,520 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:47:02,520 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:47:02,520 INFO L132 ssoRankerPreferences]: Filename of dumped script: interleaved5.c.bpl_petrified1_Iteration1_Loop [2025-02-17 22:47:02,520 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:47:02,520 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:47:02,555 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:47:02,571 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:47:02,582 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:47:02,652 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:47:02,653 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-17 22:47:02,654 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:47:02,655 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:47:02,656 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 22:47:02,658 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 22:47:02,662 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:47:02,662 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:47:02,686 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-02-17 22:47:02,686 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {f2=1} Honda state: {f2=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-02-17 22:47:02,701 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 22:47:02,704 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:47:02,705 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:47:02,707 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 22:47:02,708 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 22:47:02,710 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:47:02,710 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:47:02,739 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 22:47:02,739 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:47:02,739 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:47:02,746 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 22:47:02,748 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 22:47:02,749 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-17 22:47:02,749 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:47:02,817 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-17 22:47:02,820 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2025-02-17 22:47:02,821 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:47:02,821 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:47:02,821 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:47:02,821 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:47:02,821 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-17 22:47:02,821 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:47:02,821 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:47:02,821 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:47:02,821 INFO L132 ssoRankerPreferences]: Filename of dumped script: interleaved5.c.bpl_petrified1_Iteration1_Loop [2025-02-17 22:47:02,821 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:47:02,821 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:47:02,822 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:47:02,831 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:47:02,837 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:47:02,876 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:47:02,879 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-17 22:47:02,880 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:47:02,880 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:47:02,882 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 22:47:02,884 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 22:47:02,885 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 22:47:02,897 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:47:02,898 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-17 22:47:02,898 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:47:02,898 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:47:02,898 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:47:02,901 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-17 22:47:02,902 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-17 22:47:02,904 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-17 22:47:02,908 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2025-02-17 22:47:02,908 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-02-17 22:47:02,909 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:47:02,909 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:47:02,911 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 22:47:02,913 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 22:47:02,914 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-17 22:47:02,914 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-02-17 22:47:02,914 INFO L474 LassoAnalysis]: Proved termination. [2025-02-17 22:47:02,915 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(x1, z) = -1*x1 + 1*z Supporting invariants [] [2025-02-17 22:47:02,920 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2025-02-17 22:47:02,923 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-02-17 22:47:02,948 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:47:02,961 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:47:02,967 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:47:02,968 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:47:02,968 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:47:02,969 INFO L256 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-17 22:47:02,969 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:47:02,985 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-17 22:47:02,987 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-17 22:47:02,987 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:47:02,987 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:47:02,987 INFO L256 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-17 22:47:02,988 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:47:03,038 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 22:47:03,054 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 22:47:03,056 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand currently 10887 states, but on-demand construction may add more states Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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 22:47:03,816 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand currently 10887 states, but on-demand construction may add more states. Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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 26439 states and 136969 transitions. Complement of second has 6 states. [2025-02-17 22:47:03,818 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 22:47:03,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 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 22:47:03,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 101 transitions. [2025-02-17 22:47:03,827 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 101 transitions. Stem has 2 letters. Loop has 4 letters. [2025-02-17 22:47:03,829 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:47:03,829 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 101 transitions. Stem has 6 letters. Loop has 4 letters. [2025-02-17 22:47:03,829 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:47:03,829 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 101 transitions. Stem has 2 letters. Loop has 8 letters. [2025-02-17 22:47:03,829 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:47:03,830 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 26439 states and 136969 transitions. [2025-02-17 22:47:03,918 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2025-02-17 22:47:04,409 INFO L131 ngComponentsAnalysis]: Automaton has 630 accepting balls. 10668 [2025-02-17 22:47:04,817 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 26439 states to 21533 states and 112820 transitions. [2025-02-17 22:47:04,819 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10759 [2025-02-17 22:47:04,898 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13839 [2025-02-17 22:47:04,899 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21533 states and 112820 transitions. [2025-02-17 22:47:04,899 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-17 22:47:04,899 INFO L218 hiAutomatonCegarLoop]: Abstraction has 21533 states and 112820 transitions. [2025-02-17 22:47:04,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21533 states and 112820 transitions. [2025-02-17 22:47:05,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21533 to 18454. [2025-02-17 22:47:05,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18454 states, 18454 states have (on average 5.284924677576677) internal successors, (97528), 18453 states have internal predecessors, (97528), 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 22:47:05,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18454 states to 18454 states and 97528 transitions. [2025-02-17 22:47:05,882 INFO L240 hiAutomatonCegarLoop]: Abstraction has 18454 states and 97528 transitions. [2025-02-17 22:47:05,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-17 22:47:05,883 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-17 22:47:05,883 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-17 22:47:05,884 INFO L87 Difference]: Start difference. First operand 18454 states and 97528 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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 22:47:06,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-17 22:47:06,613 INFO L93 Difference]: Finished difference Result 34056 states and 177301 transitions. [2025-02-17 22:47:06,613 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 34056 states and 177301 transitions. [2025-02-17 22:47:07,176 INFO L131 ngComponentsAnalysis]: Automaton has 1464 accepting balls. 19620 [2025-02-17 22:47:07,934 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 34056 states to 33224 states and 171477 transitions. [2025-02-17 22:47:07,935 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 19963 [2025-02-17 22:47:08,104 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20379 [2025-02-17 22:47:08,104 INFO L73 IsDeterministic]: Start isDeterministic. Operand 33224 states and 171477 transitions. [2025-02-17 22:47:08,104 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-17 22:47:08,104 INFO L218 hiAutomatonCegarLoop]: Abstraction has 33224 states and 171477 transitions. [2025-02-17 22:47:08,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33224 states and 171477 transitions. [2025-02-17 22:47:08,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33224 to 26164. [2025-02-17 22:47:08,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26164 states, 26164 states have (on average 5.2724736278856446) internal successors, (137949), 26163 states have internal predecessors, (137949), 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 22:47:09,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26164 states to 26164 states and 137949 transitions. [2025-02-17 22:47:09,045 INFO L240 hiAutomatonCegarLoop]: Abstraction has 26164 states and 137949 transitions. [2025-02-17 22:47:09,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-17 22:47:09,046 INFO L432 stractBuchiCegarLoop]: Abstraction has 26164 states and 137949 transitions. [2025-02-17 22:47:09,046 INFO L338 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2025-02-17 22:47:09,046 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 26164 states and 137949 transitions. [2025-02-17 22:47:09,468 INFO L131 ngComponentsAnalysis]: Automaton has 858 accepting balls. 13164 [2025-02-17 22:47:09,469 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-17 22:47:09,469 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-17 22:47:09,469 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2025-02-17 22:47:09,469 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2025-02-17 22:47:09,470 INFO L752 eck$LassoCheckResult]: Stem: "[104] $Ultimate##0-->L18: Formula: (and (= v_f3_4 0) (= v_f2_4 0) (= v_x5_1 0) (= v_f1_3 0) (= v_f5_1 0) (= v_x3_5 0) (= v_x1_5 0) (= v_x4_1 0) (= v_f4_2 0) (= v_x2_5 0)) InVars {f4=v_f4_2, f5=v_f5_1, f2=v_f2_4, x4=v_x4_1, f3=v_f3_4, x5=v_x5_1, x2=v_x2_5, f1=v_f1_3, x3=v_x3_5, x1=v_x1_5} OutVars{f4=v_f4_2, f5=v_f5_1, f2=v_f2_4, x4=v_x4_1, f3=v_f3_4, x5=v_x5_1, x2=v_x2_5, f1=v_f1_3, x3=v_x3_5, x1=v_x1_5} AuxVars[] AssignedVars[]" "[153] L18-->L37-1: Formula: (= v_thread1Thread1of1ForFork4_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork4_thidvar0=v_thread1Thread1of1ForFork4_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork4_thidvar0]" "[141] L18-1-->L48: Formula: (and (= 2 v_thread2Thread1of1ForFork0_thidvar0_2) (= 2 v_thread2Thread1of1ForFork0_thidvar1_2)) InVars {} OutVars{thread2Thread1of1ForFork0_thidvar1=v_thread2Thread1of1ForFork0_thidvar1_2, thread2Thread1of1ForFork0_thidvar0=v_thread2Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork0_thidvar1, thread2Thread1of1ForFork0_thidvar0]" [2025-02-17 22:47:09,470 INFO L754 eck$LassoCheckResult]: Loop: "[116] L48-->L50: Formula: (< v_x2_2 v_z_4) InVars {x2=v_x2_2, z=v_z_4} OutVars{x2=v_x2_2, z=v_z_4} AuxVars[] AssignedVars[]" "[118] L50-->L50-1: Formula: (and (< 0 v_f2_6) (= v_f2_5 0)) InVars {f2=v_f2_6} OutVars{f2=v_f2_5} AuxVars[] AssignedVars[f2]" "[119] L50-1-->L56: Formula: (= v_x2_3 (+ v_x2_4 1)) InVars {x2=v_x2_4} OutVars{x2=v_x2_3} AuxVars[] AssignedVars[x2]" "[120] L56-->L48: Formula: (= v_f3_1 1) InVars {} OutVars{f3=v_f3_1} AuxVars[] AssignedVars[f3]" [2025-02-17 22:47:09,471 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:47:09,471 INFO L85 PathProgramCache]: Analyzing trace with hash 134619, now seen corresponding path program 1 times [2025-02-17 22:47:09,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:47:09,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1523940481] [2025-02-17 22:47:09,471 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:47:09,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:47:09,476 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:47:09,478 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:47:09,478 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:47:09,478 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:47:09,478 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:47:09,479 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:47:09,480 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:47:09,481 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:47:09,481 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:47:09,482 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:47:09,482 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:47:09,482 INFO L85 PathProgramCache]: Analyzing trace with hash 4496484, now seen corresponding path program 1 times [2025-02-17 22:47:09,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:47:09,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [912815406] [2025-02-17 22:47:09,483 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:47:09,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:47:09,485 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-17 22:47:09,486 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-17 22:47:09,486 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:47:09,486 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:47:09,486 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:47:09,490 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-17 22:47:09,491 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-17 22:47:09,491 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:47:09,491 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:47:09,492 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:47:09,493 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:47:09,493 INFO L85 PathProgramCache]: Analyzing trace with hash -227005122, now seen corresponding path program 1 times [2025-02-17 22:47:09,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:47:09,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880923399] [2025-02-17 22:47:09,493 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:47:09,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:47:09,499 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-17 22:47:09,501 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-17 22:47:09,502 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:47:09,502 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:47:09,536 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 22:47:09,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-17 22:47:09,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880923399] [2025-02-17 22:47:09,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [880923399] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-17 22:47:09,537 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-17 22:47:09,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-17 22:47:09,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024405926] [2025-02-17 22:47:09,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-17 22:47:09,588 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:47:09,588 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:47:09,588 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:47:09,588 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:47:09,588 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-17 22:47:09,588 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:47:09,588 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:47:09,588 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:47:09,588 INFO L132 ssoRankerPreferences]: Filename of dumped script: interleaved5.c.bpl_petrified1_Iteration2_Loop [2025-02-17 22:47:09,588 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:47:09,588 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:47:09,589 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:47:09,592 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:47:09,596 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:47:09,631 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:47:09,631 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-17 22:47:09,631 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:47:09,631 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:47:09,633 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 22:47:09,635 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 22:47:09,637 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:47:09,638 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:47:09,651 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-02-17 22:47:09,651 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {f3=1} Honda state: {f3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-02-17 22:47:09,656 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 22:47:09,657 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:47:09,657 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:47:09,659 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 22:47:09,660 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 22:47:09,662 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:47:09,662 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:47:09,678 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2025-02-17 22:47:09,678 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:47:09,678 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:47:09,680 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 22:47:09,682 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 22:47:09,683 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-17 22:47:09,683 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:47:09,707 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-17 22:47:09,711 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 22:47:09,711 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:47:09,711 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:47:09,711 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:47:09,711 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:47:09,712 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-17 22:47:09,712 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:47:09,712 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:47:09,712 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:47:09,712 INFO L132 ssoRankerPreferences]: Filename of dumped script: interleaved5.c.bpl_petrified1_Iteration2_Loop [2025-02-17 22:47:09,712 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:47:09,712 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:47:09,715 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:47:09,722 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:47:09,726 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:47:09,759 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:47:09,759 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-17 22:47:09,759 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:47:09,759 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:47:09,761 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 22:47:09,763 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 22:47:09,764 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 22:47:09,773 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:47:09,773 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-17 22:47:09,773 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:47:09,774 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:47:09,774 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:47:09,774 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-17 22:47:09,774 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-17 22:47:09,776 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-17 22:47:09,779 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-02-17 22:47:09,779 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-02-17 22:47:09,779 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:47:09,780 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:47:09,781 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 22:47:09,782 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 22:47:09,783 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-17 22:47:09,783 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-02-17 22:47:09,783 INFO L474 LassoAnalysis]: Proved termination. [2025-02-17 22:47:09,783 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(f2) = 1*f2 Supporting invariants [] [2025-02-17 22:47:09,788 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2025-02-17 22:47:09,789 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-02-17 22:47:09,802 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:47:09,814 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:47:09,816 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:47:09,816 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:47:09,816 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:47:09,817 INFO L256 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-17 22:47:09,817 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:47:09,827 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-17 22:47:09,829 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-17 22:47:09,830 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:47:09,830 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:47:09,831 INFO L256 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-17 22:47:09,831 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:47:09,848 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 22:47:09,848 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 22:47:09,849 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 26164 states and 137949 transitions. cyclomatic complexity: 112998 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 22:47:10,002 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 22:47:11,156 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 26164 states and 137949 transitions. cyclomatic complexity: 112998. 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 88220 states and 461985 transitions. Complement of second has 5 states. [2025-02-17 22:47:11,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2025-02-17 22:47:11,157 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 22:47:11,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 74 transitions. [2025-02-17 22:47:11,157 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 74 transitions. Stem has 3 letters. Loop has 4 letters. [2025-02-17 22:47:11,157 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:47:11,157 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 74 transitions. Stem has 7 letters. Loop has 4 letters. [2025-02-17 22:47:11,157 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:47:11,157 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 74 transitions. Stem has 3 letters. Loop has 8 letters. [2025-02-17 22:47:11,158 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:47:11,158 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 88220 states and 461985 transitions. [2025-02-17 22:47:12,735 INFO L131 ngComponentsAnalysis]: Automaton has 2132 accepting balls. 24524 [2025-02-17 22:47:14,101 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 88220 states to 77976 states and 412785 transitions. [2025-02-17 22:47:14,101 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 27418 [2025-02-17 22:47:14,252 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 32300 [2025-02-17 22:47:14,253 INFO L73 IsDeterministic]: Start isDeterministic. Operand 77976 states and 412785 transitions. [2025-02-17 22:47:14,253 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-17 22:47:14,253 INFO L218 hiAutomatonCegarLoop]: Abstraction has 77976 states and 412785 transitions. [2025-02-17 22:47:14,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77976 states and 412785 transitions. [2025-02-17 22:47:16,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77976 to 65258. [2025-02-17 22:47:16,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65258 states, 65258 states have (on average 5.406325661221612) internal successors, (352806), 65257 states have internal predecessors, (352806), 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 22:47:17,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65258 states to 65258 states and 352806 transitions. [2025-02-17 22:47:17,132 INFO L240 hiAutomatonCegarLoop]: Abstraction has 65258 states and 352806 transitions. [2025-02-17 22:47:17,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-17 22:47:17,132 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-17 22:47:17,132 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-17 22:47:17,132 INFO L87 Difference]: Start difference. First operand 65258 states and 352806 transitions. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 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 22:47:18,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-17 22:47:18,645 INFO L93 Difference]: Finished difference Result 103429 states and 540192 transitions. [2025-02-17 22:47:18,645 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 103429 states and 540192 transitions. [2025-02-17 22:47:20,727 INFO L131 ngComponentsAnalysis]: Automaton has 3740 accepting balls. 34904 [2025-02-17 22:47:22,150 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 103429 states to 83472 states and 430909 transitions. [2025-02-17 22:47:22,150 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 36925 [2025-02-17 22:47:22,342 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 38840 [2025-02-17 22:47:22,343 INFO L73 IsDeterministic]: Start isDeterministic. Operand 83472 states and 430909 transitions. [2025-02-17 22:47:22,343 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-17 22:47:22,343 INFO L218 hiAutomatonCegarLoop]: Abstraction has 83472 states and 430909 transitions. [2025-02-17 22:47:22,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83472 states and 430909 transitions. [2025-02-17 22:47:24,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83472 to 48614. [2025-02-17 22:47:24,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48614 states, 48614 states have (on average 5.197823672193195) internal successors, (252687), 48613 states have internal predecessors, (252687), 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 22:47:24,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48614 states to 48614 states and 252687 transitions. [2025-02-17 22:47:24,826 INFO L240 hiAutomatonCegarLoop]: Abstraction has 48614 states and 252687 transitions. [2025-02-17 22:47:24,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-17 22:47:24,826 INFO L432 stractBuchiCegarLoop]: Abstraction has 48614 states and 252687 transitions. [2025-02-17 22:47:24,827 INFO L338 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2025-02-17 22:47:24,827 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 48614 states and 252687 transitions. [2025-02-17 22:47:25,147 INFO L131 ngComponentsAnalysis]: Automaton has 2123 accepting balls. 19652 [2025-02-17 22:47:25,147 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-17 22:47:25,147 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-17 22:47:25,148 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2025-02-17 22:47:25,148 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2025-02-17 22:47:25,148 INFO L752 eck$LassoCheckResult]: Stem: "[104] $Ultimate##0-->L18: Formula: (and (= v_f3_4 0) (= v_f2_4 0) (= v_x5_1 0) (= v_f1_3 0) (= v_f5_1 0) (= v_x3_5 0) (= v_x1_5 0) (= v_x4_1 0) (= v_f4_2 0) (= v_x2_5 0)) InVars {f4=v_f4_2, f5=v_f5_1, f2=v_f2_4, x4=v_x4_1, f3=v_f3_4, x5=v_x5_1, x2=v_x2_5, f1=v_f1_3, x3=v_x3_5, x1=v_x1_5} OutVars{f4=v_f4_2, f5=v_f5_1, f2=v_f2_4, x4=v_x4_1, f3=v_f3_4, x5=v_x5_1, x2=v_x2_5, f1=v_f1_3, x3=v_x3_5, x1=v_x1_5} AuxVars[] AssignedVars[]" "[153] L18-->L37-1: Formula: (= v_thread1Thread1of1ForFork4_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork4_thidvar0=v_thread1Thread1of1ForFork4_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork4_thidvar0]" "[141] L18-1-->L48: Formula: (and (= 2 v_thread2Thread1of1ForFork0_thidvar0_2) (= 2 v_thread2Thread1of1ForFork0_thidvar1_2)) InVars {} OutVars{thread2Thread1of1ForFork0_thidvar1=v_thread2Thread1of1ForFork0_thidvar1_2, thread2Thread1of1ForFork0_thidvar0=v_thread2Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork0_thidvar1, thread2Thread1of1ForFork0_thidvar0]" "[144] L19-->L63: Formula: (and (= 3 v_thread3Thread1of1ForFork1_thidvar2_2) (= 3 v_thread3Thread1of1ForFork1_thidvar0_2) (= 3 v_thread3Thread1of1ForFork1_thidvar1_2)) InVars {} OutVars{thread3Thread1of1ForFork1_thidvar0=v_thread3Thread1of1ForFork1_thidvar0_2, thread3Thread1of1ForFork1_thidvar1=v_thread3Thread1of1ForFork1_thidvar1_2, thread3Thread1of1ForFork1_thidvar2=v_thread3Thread1of1ForFork1_thidvar2_2} AuxVars[] AssignedVars[thread3Thread1of1ForFork1_thidvar0, thread3Thread1of1ForFork1_thidvar1, thread3Thread1of1ForFork1_thidvar2]" [2025-02-17 22:47:25,149 INFO L754 eck$LassoCheckResult]: Loop: "[122] L63-->L65: Formula: (< v_x3_1 v_z_5) InVars {x3=v_x3_1, z=v_z_5} OutVars{x3=v_x3_1, z=v_z_5} AuxVars[] AssignedVars[]" "[124] L65-->L65-1: Formula: (and (< 0 v_f3_6) (= v_f3_5 0)) InVars {f3=v_f3_6} OutVars{f3=v_f3_5} AuxVars[] AssignedVars[f3]" "[125] L65-1-->L71: Formula: (= v_x3_2 (+ v_x3_3 1)) InVars {x3=v_x3_3} OutVars{x3=v_x3_2} AuxVars[] AssignedVars[x3]" "[126] L71-->L63: Formula: (= v_f4_1 1) InVars {} OutVars{f4=v_f4_1} AuxVars[] AssignedVars[f4]" [2025-02-17 22:47:25,149 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:47:25,149 INFO L85 PathProgramCache]: Analyzing trace with hash 4173333, now seen corresponding path program 1 times [2025-02-17 22:47:25,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:47:25,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452103572] [2025-02-17 22:47:25,149 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:47:25,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:47:25,152 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-17 22:47:25,155 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-17 22:47:25,155 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:47:25,155 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:47:25,155 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:47:25,155 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-17 22:47:25,160 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-17 22:47:25,160 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:47:25,160 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:47:25,161 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:47:25,161 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:47:25,162 INFO L85 PathProgramCache]: Analyzing trace with hash 4681188, now seen corresponding path program 1 times [2025-02-17 22:47:25,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:47:25,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573914995] [2025-02-17 22:47:25,162 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:47:25,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:47:25,165 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-17 22:47:25,167 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-17 22:47:25,167 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:47:25,167 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:47:25,167 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:47:25,168 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-17 22:47:25,168 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-17 22:47:25,169 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:47:25,169 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:47:25,170 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:47:25,171 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:47:25,171 INFO L85 PathProgramCache]: Analyzing trace with hash 1578758648, now seen corresponding path program 1 times [2025-02-17 22:47:25,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:47:25,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696587088] [2025-02-17 22:47:25,171 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:47:25,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:47:25,173 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-02-17 22:47:25,175 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-02-17 22:47:25,175 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:47:25,175 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:47:25,188 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 22:47:25,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-17 22:47:25,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696587088] [2025-02-17 22:47:25,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [696587088] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-17 22:47:25,188 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-17 22:47:25,188 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-17 22:47:25,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911494722] [2025-02-17 22:47:25,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-17 22:47:25,210 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:47:25,210 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:47:25,210 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:47:25,210 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:47:25,210 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-17 22:47:25,210 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:47:25,210 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:47:25,210 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:47:25,210 INFO L132 ssoRankerPreferences]: Filename of dumped script: interleaved5.c.bpl_petrified1_Iteration3_Loop [2025-02-17 22:47:25,210 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:47:25,210 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:47:25,211 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:47:25,213 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:47:25,216 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:47:25,243 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:47:25,244 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-17 22:47:25,244 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:47:25,244 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:47:25,246 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 22:47:25,248 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 22:47:25,254 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:47:25,254 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:47:25,270 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-02-17 22:47:25,270 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {f4=1} Honda state: {f4=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-02-17 22:47:25,277 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 22:47:25,278 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:47:25,278 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:47:25,282 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 22:47:25,283 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 22:47:25,284 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:47:25,284 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:47:25,301 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2025-02-17 22:47:25,301 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:47:25,301 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:47:25,303 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 22:47:25,304 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 22:47:25,305 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-17 22:47:25,305 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:47:25,329 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-17 22:47:25,333 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2025-02-17 22:47:25,333 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:47:25,333 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:47:25,333 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:47:25,333 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:47:25,333 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-17 22:47:25,333 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:47:25,333 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:47:25,333 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:47:25,333 INFO L132 ssoRankerPreferences]: Filename of dumped script: interleaved5.c.bpl_petrified1_Iteration3_Loop [2025-02-17 22:47:25,333 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:47:25,333 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:47:25,334 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:47:25,336 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:47:25,339 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:47:25,368 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:47:25,369 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-17 22:47:25,369 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:47:25,369 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:47:25,371 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 22:47:25,372 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 22:47:25,374 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 22:47:25,383 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:47:25,384 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-17 22:47:25,384 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:47:25,384 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:47:25,384 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:47:25,384 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-17 22:47:25,384 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-17 22:47:25,386 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-17 22:47:25,391 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2025-02-17 22:47:25,392 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:47:25,392 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:47:25,393 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 22:47:25,394 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 22:47:25,398 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 22:47:25,408 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:47:25,408 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-17 22:47:25,408 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:47:25,409 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:47:25,409 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:47:25,409 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-17 22:47:25,409 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-17 22:47:25,411 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-17 22:47:25,413 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-02-17 22:47:25,413 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-02-17 22:47:25,413 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:47:25,413 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:47:25,415 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 22:47:25,417 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 22:47:25,418 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-17 22:47:25,418 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-02-17 22:47:25,418 INFO L474 LassoAnalysis]: Proved termination. [2025-02-17 22:47:25,418 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(f3) = 1*f3 Supporting invariants [] [2025-02-17 22:47:25,423 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2025-02-17 22:47:25,423 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-02-17 22:47:25,432 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:47:25,436 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-17 22:47:25,444 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-17 22:47:25,445 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:47:25,445 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:47:25,446 INFO L256 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-17 22:47:25,446 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:47:25,458 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-17 22:47:25,459 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-17 22:47:25,459 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:47:25,459 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:47:25,460 INFO L256 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-17 22:47:25,460 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:47:25,486 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 22:47:25,487 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 22:47:25,487 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 48614 states and 252687 transitions. cyclomatic complexity: 207705 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 22:47:25,750 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2025-02-17 22:47:27,758 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 48614 states and 252687 transitions. cyclomatic complexity: 207705. 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 159674 states and 844004 transitions. Complement of second has 5 states. [2025-02-17 22:47:27,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2025-02-17 22:47:27,759 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 22:47:27,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 80 transitions. [2025-02-17 22:47:27,759 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 80 transitions. Stem has 4 letters. Loop has 4 letters. [2025-02-17 22:47:27,759 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:47:27,760 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 80 transitions. Stem has 8 letters. Loop has 4 letters. [2025-02-17 22:47:27,760 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:47:27,760 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 80 transitions. Stem has 4 letters. Loop has 8 letters. [2025-02-17 22:47:27,760 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:47:27,760 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 159674 states and 844004 transitions. [2025-02-17 22:47:30,956 INFO L131 ngComponentsAnalysis]: Automaton has 5003 accepting balls. 36008 [2025-02-17 22:47:33,313 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 159674 states to 139940 states and 744516 transitions. [2025-02-17 22:47:33,313 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 46429 [2025-02-17 22:47:33,537 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 54287 [2025-02-17 22:47:33,537 INFO L73 IsDeterministic]: Start isDeterministic. Operand 139940 states and 744516 transitions. [2025-02-17 22:47:33,537 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-17 22:47:33,537 INFO L218 hiAutomatonCegarLoop]: Abstraction has 139940 states and 744516 transitions. [2025-02-17 22:47:33,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139940 states and 744516 transitions. [2025-02-17 22:47:37,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139940 to 120037. [2025-02-17 22:47:37,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120037 states, 120037 states have (on average 5.414847088814282) internal successors, (649982), 120036 states have internal predecessors, (649982), 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 22:47:38,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120037 states to 120037 states and 649982 transitions. [2025-02-17 22:47:38,376 INFO L240 hiAutomatonCegarLoop]: Abstraction has 120037 states and 649982 transitions. [2025-02-17 22:47:38,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-17 22:47:38,376 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-17 22:47:38,376 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-17 22:47:38,376 INFO L87 Difference]: Start difference. First operand 120037 states and 649982 transitions. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 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 22:47:40,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-17 22:47:40,914 INFO L93 Difference]: Finished difference Result 176541 states and 925251 transitions. [2025-02-17 22:47:40,915 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 176541 states and 925251 transitions. [2025-02-17 22:47:44,334 INFO L131 ngComponentsAnalysis]: Automaton has 8722 accepting balls. 50248 [2025-02-17 22:47:46,648 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 176541 states to 133048 states and 688546 transitions. [2025-02-17 22:47:46,649 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 56699 [2025-02-17 22:47:46,909 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 59639 [2025-02-17 22:47:46,910 INFO L73 IsDeterministic]: Start isDeterministic. Operand 133048 states and 688546 transitions. [2025-02-17 22:47:46,910 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-17 22:47:46,910 INFO L218 hiAutomatonCegarLoop]: Abstraction has 133048 states and 688546 transitions. [2025-02-17 22:47:47,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133048 states and 688546 transitions. [2025-02-17 22:47:49,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133048 to 79618. [2025-02-17 22:47:49,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79618 states, 79618 states have (on average 5.2016252606194575) internal successors, (414143), 79617 states have internal predecessors, (414143), 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 22:47:50,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79618 states to 79618 states and 414143 transitions. [2025-02-17 22:47:50,419 INFO L240 hiAutomatonCegarLoop]: Abstraction has 79618 states and 414143 transitions. [2025-02-17 22:47:50,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-17 22:47:50,420 INFO L432 stractBuchiCegarLoop]: Abstraction has 79618 states and 414143 transitions. [2025-02-17 22:47:50,420 INFO L338 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2025-02-17 22:47:50,420 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 79618 states and 414143 transitions. [2025-02-17 22:47:51,224 INFO L131 ngComponentsAnalysis]: Automaton has 4884 accepting balls. 28068 [2025-02-17 22:47:51,224 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-17 22:47:51,224 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-17 22:47:51,227 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2025-02-17 22:47:51,227 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2025-02-17 22:47:51,227 INFO L752 eck$LassoCheckResult]: Stem: "[104] $Ultimate##0-->L18: Formula: (and (= v_f3_4 0) (= v_f2_4 0) (= v_x5_1 0) (= v_f1_3 0) (= v_f5_1 0) (= v_x3_5 0) (= v_x1_5 0) (= v_x4_1 0) (= v_f4_2 0) (= v_x2_5 0)) InVars {f4=v_f4_2, f5=v_f5_1, f2=v_f2_4, x4=v_x4_1, f3=v_f3_4, x5=v_x5_1, x2=v_x2_5, f1=v_f1_3, x3=v_x3_5, x1=v_x1_5} OutVars{f4=v_f4_2, f5=v_f5_1, f2=v_f2_4, x4=v_x4_1, f3=v_f3_4, x5=v_x5_1, x2=v_x2_5, f1=v_f1_3, x3=v_x3_5, x1=v_x1_5} AuxVars[] AssignedVars[]" "[153] L18-->L37-1: Formula: (= v_thread1Thread1of1ForFork4_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork4_thidvar0=v_thread1Thread1of1ForFork4_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork4_thidvar0]" "[141] L18-1-->L48: Formula: (and (= 2 v_thread2Thread1of1ForFork0_thidvar0_2) (= 2 v_thread2Thread1of1ForFork0_thidvar1_2)) InVars {} OutVars{thread2Thread1of1ForFork0_thidvar1=v_thread2Thread1of1ForFork0_thidvar1_2, thread2Thread1of1ForFork0_thidvar0=v_thread2Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork0_thidvar1, thread2Thread1of1ForFork0_thidvar0]" "[144] L19-->L63: Formula: (and (= 3 v_thread3Thread1of1ForFork1_thidvar2_2) (= 3 v_thread3Thread1of1ForFork1_thidvar0_2) (= 3 v_thread3Thread1of1ForFork1_thidvar1_2)) InVars {} OutVars{thread3Thread1of1ForFork1_thidvar0=v_thread3Thread1of1ForFork1_thidvar0_2, thread3Thread1of1ForFork1_thidvar1=v_thread3Thread1of1ForFork1_thidvar1_2, thread3Thread1of1ForFork1_thidvar2=v_thread3Thread1of1ForFork1_thidvar2_2} AuxVars[] AssignedVars[thread3Thread1of1ForFork1_thidvar0, thread3Thread1of1ForFork1_thidvar1, thread3Thread1of1ForFork1_thidvar2]" "[147] L20-->L78: Formula: (and (= 4 v_thread4Thread1of1ForFork2_thidvar2_2) (= 4 v_thread4Thread1of1ForFork2_thidvar3_2) (= 4 v_thread4Thread1of1ForFork2_thidvar1_2) (= 4 v_thread4Thread1of1ForFork2_thidvar0_2)) InVars {} OutVars{thread4Thread1of1ForFork2_thidvar3=v_thread4Thread1of1ForFork2_thidvar3_2, thread4Thread1of1ForFork2_thidvar0=v_thread4Thread1of1ForFork2_thidvar0_2, thread4Thread1of1ForFork2_thidvar2=v_thread4Thread1of1ForFork2_thidvar2_2, thread4Thread1of1ForFork2_thidvar1=v_thread4Thread1of1ForFork2_thidvar1_2} AuxVars[] AssignedVars[thread4Thread1of1ForFork2_thidvar3, thread4Thread1of1ForFork2_thidvar0, thread4Thread1of1ForFork2_thidvar2, thread4Thread1of1ForFork2_thidvar1]" [2025-02-17 22:47:51,227 INFO L754 eck$LassoCheckResult]: Loop: "[128] L78-->L80: Formula: (< v_x4_3 v_z_8) InVars {x4=v_x4_3, z=v_z_8} OutVars{x4=v_x4_3, z=v_z_8} AuxVars[] AssignedVars[]" "[130] L80-->L80-1: Formula: (and (< 0 v_f4_6) (= v_f4_5 0)) InVars {f4=v_f4_6} OutVars{f4=v_f4_5} AuxVars[] AssignedVars[f4]" "[131] L80-1-->L86: Formula: (= v_x4_4 (+ v_x4_5 1)) InVars {x4=v_x4_5} OutVars{x4=v_x4_4} AuxVars[] AssignedVars[x4]" "[132] L86-->L78: Formula: (= v_f5_2 1) InVars {} OutVars{f5=v_f5_2} AuxVars[] AssignedVars[f5]" [2025-02-17 22:47:51,228 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:47:51,228 INFO L85 PathProgramCache]: Analyzing trace with hash 129373470, now seen corresponding path program 1 times [2025-02-17 22:47:51,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:47:51,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379395866] [2025-02-17 22:47:51,228 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:47:51,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:47:51,231 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-17 22:47:51,232 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-17 22:47:51,232 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:47:51,232 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:47:51,232 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:47:51,233 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-17 22:47:51,234 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-17 22:47:51,234 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:47:51,235 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:47:51,236 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:47:51,241 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:47:51,241 INFO L85 PathProgramCache]: Analyzing trace with hash 4865892, now seen corresponding path program 1 times [2025-02-17 22:47:51,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:47:51,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143836163] [2025-02-17 22:47:51,241 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:47:51,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:47:51,243 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-17 22:47:51,245 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-17 22:47:51,245 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:47:51,245 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:47:51,245 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:47:51,246 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-17 22:47:51,247 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-17 22:47:51,247 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:47:51,247 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:47:51,248 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:47:51,248 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:47:51,248 INFO L85 PathProgramCache]: Analyzing trace with hash 1720090113, now seen corresponding path program 1 times [2025-02-17 22:47:51,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:47:51,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105966465] [2025-02-17 22:47:51,248 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:47:51,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:47:51,250 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-02-17 22:47:51,252 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-02-17 22:47:51,252 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:47:51,252 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:47:51,268 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 22:47:51,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-17 22:47:51,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1105966465] [2025-02-17 22:47:51,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1105966465] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-17 22:47:51,268 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-17 22:47:51,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-17 22:47:51,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871235835] [2025-02-17 22:47:51,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-17 22:47:51,299 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:47:51,299 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:47:51,299 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:47:51,299 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:47:51,299 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-17 22:47:51,299 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:47:51,299 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:47:51,299 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:47:51,299 INFO L132 ssoRankerPreferences]: Filename of dumped script: interleaved5.c.bpl_petrified1_Iteration4_Loop [2025-02-17 22:47:51,299 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:47:51,299 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:47:51,300 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:47:51,304 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:47:51,306 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:47:51,331 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:47:51,331 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-17 22:47:51,331 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:47:51,332 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:47:51,333 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 22:47:51,335 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 22:47:51,337 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:47:51,337 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:47:51,353 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 22:47:51,353 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:47:51,353 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:47:51,355 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 22:47:51,355 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 22:47:51,356 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-17 22:47:51,356 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:47:51,418 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-17 22:47:51,422 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 22:47:51,422 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:47:51,422 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:47:51,422 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:47:51,422 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:47:51,422 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-17 22:47:51,422 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:47:51,422 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:47:51,422 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:47:51,422 INFO L132 ssoRankerPreferences]: Filename of dumped script: interleaved5.c.bpl_petrified1_Iteration4_Loop [2025-02-17 22:47:51,422 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:47:51,422 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:47:51,423 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:47:51,427 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:47:51,431 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:47:51,460 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:47:51,460 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-17 22:47:51,460 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:47:51,461 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:47:51,462 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 22:47:51,463 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 22:47:51,464 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 22:47:51,473 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:47:51,473 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-17 22:47:51,473 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:47:51,473 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:47:51,473 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:47:51,474 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-17 22:47:51,474 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-17 22:47:51,476 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-17 22:47:51,477 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-02-17 22:47:51,477 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2025-02-17 22:47:51,477 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:47:51,477 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:47:51,479 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:47:51,480 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2025-02-17 22:47:51,480 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-17 22:47:51,480 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-02-17 22:47:51,480 INFO L474 LassoAnalysis]: Proved termination. [2025-02-17 22:47:51,480 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(z, x4) = 1*z - 1*x4 Supporting invariants [] [2025-02-17 22:47:51,485 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2025-02-17 22:47:51,486 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-02-17 22:47:51,493 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:47:51,497 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-17 22:47:51,501 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-17 22:47:51,501 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:47:51,501 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:47:51,501 INFO L256 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-17 22:47:51,502 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:47:51,510 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-17 22:47:51,511 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-17 22:47:51,511 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:47:51,511 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:47:51,511 INFO L256 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-17 22:47:51,512 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:47:51,537 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 22:47:51,538 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 22:47:51,538 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 79618 states and 414143 transitions. cyclomatic complexity: 342952 Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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 22:47:51,992 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Ended with exit code 0 [2025-02-17 22:47:54,544 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 79618 states and 414143 transitions. cyclomatic complexity: 342952. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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 199569 states and 1078352 transitions. Complement of second has 6 states. [2025-02-17 22:47:54,545 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 22:47:54,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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 22:47:54,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 116 transitions. [2025-02-17 22:47:54,546 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 116 transitions. Stem has 5 letters. Loop has 4 letters. [2025-02-17 22:47:54,546 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:47:54,546 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 116 transitions. Stem has 9 letters. Loop has 4 letters. [2025-02-17 22:47:54,546 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:47:54,546 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 116 transitions. Stem has 5 letters. Loop has 8 letters. [2025-02-17 22:47:54,546 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:47:54,546 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 199569 states and 1078352 transitions. [2025-02-17 22:47:58,578 INFO L131 ngComponentsAnalysis]: Automaton has 4267 accepting balls. 17068 [2025-02-17 22:48:00,543 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 199569 states to 130191 states and 709531 transitions. [2025-02-17 22:48:00,543 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 33283 [2025-02-17 22:48:00,666 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 41080 [2025-02-17 22:48:00,666 INFO L73 IsDeterministic]: Start isDeterministic. Operand 130191 states and 709531 transitions. [2025-02-17 22:48:00,666 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-17 22:48:00,666 INFO L218 hiAutomatonCegarLoop]: Abstraction has 130191 states and 709531 transitions. [2025-02-17 22:48:00,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130191 states and 709531 transitions. [2025-02-17 22:48:03,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130191 to 121064. [2025-02-17 22:48:03,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121064 states, 121064 states have (on average 5.470932729795811) internal successors, (662333), 121063 states have internal predecessors, (662333), 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 22:48:04,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121064 states to 121064 states and 662333 transitions. [2025-02-17 22:48:04,574 INFO L240 hiAutomatonCegarLoop]: Abstraction has 121064 states and 662333 transitions. [2025-02-17 22:48:04,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-17 22:48:04,574 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-17 22:48:04,574 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-17 22:48:04,574 INFO L87 Difference]: Start difference. First operand 121064 states and 662333 transitions. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 states have internal predecessors, (9), 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 22:48:06,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-17 22:48:06,899 INFO L93 Difference]: Finished difference Result 196424 states and 1062765 transitions. [2025-02-17 22:48:06,899 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 196424 states and 1062765 transitions. [2025-02-17 22:48:10,111 INFO L131 ngComponentsAnalysis]: Automaton has 8534 accepting balls. 34136 [2025-02-17 22:48:12,396 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 196424 states to 188383 states and 1010965 transitions. [2025-02-17 22:48:12,396 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 57725 [2025-02-17 22:48:12,799 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 58737 [2025-02-17 22:48:12,799 INFO L73 IsDeterministic]: Start isDeterministic. Operand 188383 states and 1010965 transitions. [2025-02-17 22:48:12,800 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-17 22:48:12,800 INFO L218 hiAutomatonCegarLoop]: Abstraction has 188383 states and 1010965 transitions. [2025-02-17 22:48:12,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188383 states and 1010965 transitions. [2025-02-17 22:48:16,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188383 to 162480. [2025-02-17 22:48:16,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162480 states, 162480 states have (on average 5.490946578040374) internal successors, (892169), 162479 states have internal predecessors, (892169), 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 22:48:18,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162480 states to 162480 states and 892169 transitions. [2025-02-17 22:48:18,245 INFO L240 hiAutomatonCegarLoop]: Abstraction has 162480 states and 892169 transitions. [2025-02-17 22:48:18,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-17 22:48:18,246 INFO L432 stractBuchiCegarLoop]: Abstraction has 162480 states and 892169 transitions. [2025-02-17 22:48:18,246 INFO L338 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2025-02-17 22:48:18,246 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 162480 states and 892169 transitions. [2025-02-17 22:48:19,491 INFO L131 ngComponentsAnalysis]: Automaton has 6400 accepting balls. 25600 [2025-02-17 22:48:19,492 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-17 22:48:19,492 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-17 22:48:19,494 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2025-02-17 22:48:19,494 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2025-02-17 22:48:19,495 INFO L752 eck$LassoCheckResult]: Stem: "[104] $Ultimate##0-->L18: Formula: (and (= v_f3_4 0) (= v_f2_4 0) (= v_x5_1 0) (= v_f1_3 0) (= v_f5_1 0) (= v_x3_5 0) (= v_x1_5 0) (= v_x4_1 0) (= v_f4_2 0) (= v_x2_5 0)) InVars {f4=v_f4_2, f5=v_f5_1, f2=v_f2_4, x4=v_x4_1, f3=v_f3_4, x5=v_x5_1, x2=v_x2_5, f1=v_f1_3, x3=v_x3_5, x1=v_x1_5} OutVars{f4=v_f4_2, f5=v_f5_1, f2=v_f2_4, x4=v_x4_1, f3=v_f3_4, x5=v_x5_1, x2=v_x2_5, f1=v_f1_3, x3=v_x3_5, x1=v_x1_5} AuxVars[] AssignedVars[]" "[153] L18-->L37-1: Formula: (= v_thread1Thread1of1ForFork4_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork4_thidvar0=v_thread1Thread1of1ForFork4_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork4_thidvar0]" "[141] L18-1-->L48: Formula: (and (= 2 v_thread2Thread1of1ForFork0_thidvar0_2) (= 2 v_thread2Thread1of1ForFork0_thidvar1_2)) InVars {} OutVars{thread2Thread1of1ForFork0_thidvar1=v_thread2Thread1of1ForFork0_thidvar1_2, thread2Thread1of1ForFork0_thidvar0=v_thread2Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork0_thidvar1, thread2Thread1of1ForFork0_thidvar0]" "[144] L19-->L63: Formula: (and (= 3 v_thread3Thread1of1ForFork1_thidvar2_2) (= 3 v_thread3Thread1of1ForFork1_thidvar0_2) (= 3 v_thread3Thread1of1ForFork1_thidvar1_2)) InVars {} OutVars{thread3Thread1of1ForFork1_thidvar0=v_thread3Thread1of1ForFork1_thidvar0_2, thread3Thread1of1ForFork1_thidvar1=v_thread3Thread1of1ForFork1_thidvar1_2, thread3Thread1of1ForFork1_thidvar2=v_thread3Thread1of1ForFork1_thidvar2_2} AuxVars[] AssignedVars[thread3Thread1of1ForFork1_thidvar0, thread3Thread1of1ForFork1_thidvar1, thread3Thread1of1ForFork1_thidvar2]" "[147] L20-->L78: Formula: (and (= 4 v_thread4Thread1of1ForFork2_thidvar2_2) (= 4 v_thread4Thread1of1ForFork2_thidvar3_2) (= 4 v_thread4Thread1of1ForFork2_thidvar1_2) (= 4 v_thread4Thread1of1ForFork2_thidvar0_2)) InVars {} OutVars{thread4Thread1of1ForFork2_thidvar3=v_thread4Thread1of1ForFork2_thidvar3_2, thread4Thread1of1ForFork2_thidvar0=v_thread4Thread1of1ForFork2_thidvar0_2, thread4Thread1of1ForFork2_thidvar2=v_thread4Thread1of1ForFork2_thidvar2_2, thread4Thread1of1ForFork2_thidvar1=v_thread4Thread1of1ForFork2_thidvar1_2} AuxVars[] AssignedVars[thread4Thread1of1ForFork2_thidvar3, thread4Thread1of1ForFork2_thidvar0, thread4Thread1of1ForFork2_thidvar2, thread4Thread1of1ForFork2_thidvar1]" "[150] L21-->L93: Formula: (and (= v_thread5Thread1of1ForFork3_thidvar1_2 5) (= v_thread5Thread1of1ForFork3_thidvar3_2 5) (= v_thread5Thread1of1ForFork3_thidvar4_2 5) (= v_thread5Thread1of1ForFork3_thidvar2_2 5) (= v_thread5Thread1of1ForFork3_thidvar0_2 5)) InVars {} OutVars{thread5Thread1of1ForFork3_thidvar2=v_thread5Thread1of1ForFork3_thidvar2_2, thread5Thread1of1ForFork3_thidvar1=v_thread5Thread1of1ForFork3_thidvar1_2, thread5Thread1of1ForFork3_thidvar4=v_thread5Thread1of1ForFork3_thidvar4_2, thread5Thread1of1ForFork3_thidvar3=v_thread5Thread1of1ForFork3_thidvar3_2, thread5Thread1of1ForFork3_thidvar0=v_thread5Thread1of1ForFork3_thidvar0_2} AuxVars[] AssignedVars[thread5Thread1of1ForFork3_thidvar2, thread5Thread1of1ForFork3_thidvar1, thread5Thread1of1ForFork3_thidvar4, thread5Thread1of1ForFork3_thidvar3, thread5Thread1of1ForFork3_thidvar0]" [2025-02-17 22:48:19,495 INFO L754 eck$LassoCheckResult]: Loop: "[134] L93-->L95: Formula: (< v_x5_2 v_z_9) InVars {x5=v_x5_2, z=v_z_9} OutVars{x5=v_x5_2, z=v_z_9} AuxVars[] AssignedVars[]" "[136] L95-->L95-1: Formula: (and (= v_f5_5 0) (< 0 v_f5_6)) InVars {f5=v_f5_6} OutVars{f5=v_f5_5} AuxVars[] AssignedVars[f5]" "[137] L95-1-->L101: Formula: (= v_x5_3 (+ v_x5_4 1)) InVars {x5=v_x5_4} OutVars{x5=v_x5_3} AuxVars[] AssignedVars[x5]" "[138] L101-->L93: Formula: (= v_f1_4 1) InVars {} OutVars{f1=v_f1_4} AuxVars[] AssignedVars[f1]" [2025-02-17 22:48:19,496 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:48:19,496 INFO L85 PathProgramCache]: Analyzing trace with hash -284389576, now seen corresponding path program 1 times [2025-02-17 22:48:19,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:48:19,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234288662] [2025-02-17 22:48:19,496 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:48:19,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:48:19,499 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-17 22:48:19,502 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-17 22:48:19,502 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:48:19,502 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:48:19,502 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:48:19,503 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-17 22:48:19,508 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-17 22:48:19,508 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:48:19,508 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:48:19,509 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:48:19,509 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:48:19,510 INFO L85 PathProgramCache]: Analyzing trace with hash 5050596, now seen corresponding path program 1 times [2025-02-17 22:48:19,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:48:19,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647208060] [2025-02-17 22:48:19,510 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:48:19,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:48:19,515 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-17 22:48:19,516 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-17 22:48:19,516 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:48:19,516 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:48:19,516 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:48:19,517 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-17 22:48:19,517 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-17 22:48:19,517 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:48:19,517 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:48:19,518 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:48:19,518 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:48:19,518 INFO L85 PathProgramCache]: Analyzing trace with hash 1803627675, now seen corresponding path program 1 times [2025-02-17 22:48:19,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:48:19,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153570809] [2025-02-17 22:48:19,518 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:48:19,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:48:19,520 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-02-17 22:48:19,521 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-02-17 22:48:19,521 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:48:19,521 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:48:19,542 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 22:48:19,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-17 22:48:19,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153570809] [2025-02-17 22:48:19,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1153570809] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-17 22:48:19,542 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-17 22:48:19,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-17 22:48:19,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629302444] [2025-02-17 22:48:19,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-17 22:48:19,564 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:48:19,565 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:48:19,565 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:48:19,565 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:48:19,565 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-17 22:48:19,565 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:48:19,565 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:48:19,565 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:48:19,565 INFO L132 ssoRankerPreferences]: Filename of dumped script: interleaved5.c.bpl_petrified1_Iteration5_Loop [2025-02-17 22:48:19,565 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:48:19,565 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:48:19,565 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:48:19,569 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:48:19,571 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:48:19,590 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:48:19,590 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-17 22:48:19,590 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:48:19,590 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:48:19,592 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:48:19,593 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2025-02-17 22:48:19,595 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:48:19,596 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:48:19,610 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2025-02-17 22:48:19,610 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:48:19,611 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:48:19,612 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:48:19,613 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2025-02-17 22:48:19,614 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-17 22:48:19,614 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:48:19,671 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-17 22:48:19,674 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2025-02-17 22:48:19,675 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:48:19,675 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:48:19,675 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:48:19,675 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:48:19,675 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-17 22:48:19,675 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:48:19,675 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:48:19,675 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:48:19,675 INFO L132 ssoRankerPreferences]: Filename of dumped script: interleaved5.c.bpl_petrified1_Iteration5_Loop [2025-02-17 22:48:19,675 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:48:19,675 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:48:19,675 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:48:19,679 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:48:19,681 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:48:19,701 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:48:19,701 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-17 22:48:19,701 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:48:19,701 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:48:19,703 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:48:19,704 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2025-02-17 22:48:19,705 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 22:48:19,714 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:48:19,714 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-17 22:48:19,714 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:48:19,714 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:48:19,714 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:48:19,715 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-17 22:48:19,715 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-17 22:48:19,716 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-17 22:48:19,718 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-02-17 22:48:19,718 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2025-02-17 22:48:19,718 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:48:19,718 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:48:19,720 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:48:19,720 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2025-02-17 22:48:19,721 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-17 22:48:19,721 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-02-17 22:48:19,721 INFO L474 LassoAnalysis]: Proved termination. [2025-02-17 22:48:19,721 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(z, x5) = 1*z - 1*x5 Supporting invariants [] [2025-02-17 22:48:19,726 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2025-02-17 22:48:19,726 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-02-17 22:48:19,733 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:48:19,737 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-17 22:48:19,741 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-17 22:48:19,741 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:48:19,742 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:48:19,742 INFO L256 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-17 22:48:19,742 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:48:19,750 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-17 22:48:19,751 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-17 22:48:19,751 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:48:19,751 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:48:19,751 INFO L256 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-17 22:48:19,751 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:48:19,872 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2025-02-17 22:48:19,891 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 22:48:19,892 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 22:48:19,892 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 162480 states and 892169 transitions. cyclomatic complexity: 743329 Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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 22:48:24,458 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 162480 states and 892169 transitions. cyclomatic complexity: 743329. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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 405151 states and 2282381 transitions. Complement of second has 6 states. [2025-02-17 22:48:24,459 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 22:48:24,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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 22:48:24,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 119 transitions. [2025-02-17 22:48:24,459 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 119 transitions. Stem has 6 letters. Loop has 4 letters. [2025-02-17 22:48:24,459 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:48:24,459 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 119 transitions. Stem has 10 letters. Loop has 4 letters. [2025-02-17 22:48:24,459 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:48:24,460 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 119 transitions. Stem has 6 letters. Loop has 8 letters. [2025-02-17 22:48:24,460 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:48:24,460 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 405151 states and 2282381 transitions.