/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/interleaved6.c.bpl -------------------------------------------------------------------------------- This is Ultimate 0.3.0-wip.dk.ample-buchi-a4216cd-m [2025-04-26 16:25:50,076 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-26 16:25:50,129 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/settings/buchiAutomizer/concurrent-automaton-noLbe.epf [2025-04-26 16:25:50,132 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-26 16:25:50,132 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-26 16:25:50,149 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-26 16:25:50,149 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-26 16:25:50,149 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-26 16:25:50,150 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-26 16:25:50,150 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-26 16:25:50,150 INFO L153 SettingsManager]: * Use SBE=true [2025-04-26 16:25:50,150 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2025-04-26 16:25:50,150 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2025-04-26 16:25:50,150 INFO L153 SettingsManager]: * Use old map elimination=false [2025-04-26 16:25:50,150 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2025-04-26 16:25:50,150 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2025-04-26 16:25:50,150 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2025-04-26 16:25:50,150 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-26 16:25:50,150 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2025-04-26 16:25:50,150 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-26 16:25:50,151 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-26 16:25:50,151 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-26 16:25:50,151 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-26 16:25:50,151 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2025-04-26 16:25:50,151 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2025-04-26 16:25:50,151 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2025-04-26 16:25:50,151 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-04-26 16:25:50,151 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-26 16:25:50,151 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-26 16:25:50,151 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2025-04-26 16:25:50,151 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-26 16:25:50,151 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-26 16:25:50,152 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-26 16:25:50,152 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-26 16:25:50,152 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-26 16:25:50,152 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2025-04-26 16:25:50,152 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR [2025-04-26 16:25:50,370 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-26 16:25:50,379 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-26 16:25:50,380 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-26 16:25:50,382 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2025-04-26 16:25:50,382 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2025-04-26 16:25:50,384 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/cav23-termute-examples/4_plus_thr/interleaved6.c.bpl [2025-04-26 16:25:50,384 INFO L110 BoogieParser]: Parsing: '/storage/cav23-termute-examples/4_plus_thr/interleaved6.c.bpl' [2025-04-26 16:25:50,409 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-26 16:25:50,410 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2025-04-26 16:25:50,410 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-26 16:25:50,410 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-26 16:25:50,410 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-26 16:25:50,419 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "interleaved6.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:25:50" (1/1) ... [2025-04-26 16:25:50,442 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "interleaved6.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:25:50" (1/1) ... [2025-04-26 16:25:50,448 INFO L138 Inliner]: procedures = 7, calls = 6, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2025-04-26 16:25:50,449 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-26 16:25:50,451 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-26 16:25:50,451 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-26 16:25:50,451 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-26 16:25:50,456 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "interleaved6.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:25:50" (1/1) ... [2025-04-26 16:25:50,456 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "interleaved6.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:25:50" (1/1) ... [2025-04-26 16:25:50,462 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "interleaved6.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:25:50" (1/1) ... [2025-04-26 16:25:50,462 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "interleaved6.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:25:50" (1/1) ... [2025-04-26 16:25:50,464 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "interleaved6.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:25:50" (1/1) ... [2025-04-26 16:25:50,464 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "interleaved6.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:25:50" (1/1) ... [2025-04-26 16:25:50,468 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "interleaved6.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:25:50" (1/1) ... [2025-04-26 16:25:50,468 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "interleaved6.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:25:50" (1/1) ... [2025-04-26 16:25:50,468 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "interleaved6.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:25:50" (1/1) ... [2025-04-26 16:25:50,479 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-26 16:25:50,479 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-26 16:25:50,479 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-26 16:25:50,479 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-26 16:25:50,483 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "interleaved6.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:25:50" (1/1) ... [2025-04-26 16:25:50,489 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:25:50,497 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:25:50,507 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:25:50,510 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2025-04-26 16:25:50,528 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2025-04-26 16:25:50,528 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-04-26 16:25:50,528 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-04-26 16:25:50,528 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2025-04-26 16:25:50,528 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-04-26 16:25:50,528 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-04-26 16:25:50,528 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2025-04-26 16:25:50,528 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-04-26 16:25:50,528 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-04-26 16:25:50,528 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2025-04-26 16:25:50,528 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-26 16:25:50,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-26 16:25:50,529 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2025-04-26 16:25:50,529 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2025-04-26 16:25:50,529 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2025-04-26 16:25:50,529 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread5 given in one single declaration [2025-04-26 16:25:50,529 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2025-04-26 16:25:50,529 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2025-04-26 16:25:50,529 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread6 given in one single declaration [2025-04-26 16:25:50,529 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2025-04-26 16:25:50,529 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2025-04-26 16:25:50,530 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-04-26 16:25:50,564 INFO L234 CfgBuilder]: Building ICFG [2025-04-26 16:25:50,566 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-26 16:25:50,654 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-26 16:25:50,654 INFO L283 CfgBuilder]: Performing block encoding [2025-04-26 16:25:50,677 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-26 16:25:50,677 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-04-26 16:25:50,678 INFO L201 PluginConnector]: Adding new model interleaved6.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.04 04:25:50 BoogieIcfgContainer [2025-04-26 16:25:50,679 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-26 16:25:50,679 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2025-04-26 16:25:50,679 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2025-04-26 16:25:50,683 INFO L274 PluginConnector]: BuchiAutomizer initialized [2025-04-26 16:25:50,684 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-04-26 16:25:50,684 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "interleaved6.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:25:50" (1/2) ... [2025-04-26 16:25:50,685 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@731d08c2 and model type interleaved6.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.04 04:25:50, skipping insertion in model container [2025-04-26 16:25:50,685 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-04-26 16:25:50,685 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "interleaved6.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.04 04:25:50" (2/2) ... [2025-04-26 16:25:50,686 INFO L376 chiAutomizerObserver]: Analyzing ICFG interleaved6.c.bpl [2025-04-26 16:25:50,742 INFO L143 ThreadInstanceAdder]: Constructed 6 joinOtherThreadTransitions. [2025-04-26 16:25:50,769 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 69 places, 62 transitions, 166 flow [2025-04-26 16:25:50,789 INFO L116 PetriNetUnfolderBase]: 6/50 cut-off events. [2025-04-26 16:25:50,790 INFO L117 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2025-04-26 16:25:50,796 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 50 events. 6/50 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 136 event pairs, 0 based on Foata normal form. 0/44 useless extension candidates. Maximal degree in co-relation 51. Up to 2 conditions per place. [2025-04-26 16:25:50,796 INFO L82 GeneralOperation]: Start removeDead. Operand has 69 places, 62 transitions, 166 flow [2025-04-26 16:25:50,801 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 63 places, 50 transitions, 136 flow [2025-04-26 16:25:50,801 INFO L84 lAbstractionProvider]: Constructed initial Petri net abstraction that has has 63 places, 50 transitions, 136 flow [2025-04-26 16:25:50,809 INFO L306 stractBuchiCegarLoop]: Interprodecural is true [2025-04-26 16:25:50,809 INFO L307 stractBuchiCegarLoop]: Hoare is None [2025-04-26 16:25:50,809 INFO L308 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2025-04-26 16:25:50,809 INFO L309 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2025-04-26 16:25:50,809 INFO L310 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2025-04-26 16:25:50,809 INFO L311 stractBuchiCegarLoop]: Difference is false [2025-04-26 16:25:50,809 INFO L312 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2025-04-26 16:25:50,809 INFO L316 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2025-04-26 16:25:50,811 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 0 states, but on-demand construction may add more states [2025-04-26 16:25:55,326 INFO L131 ngComponentsAnalysis]: Automaton has 1267 accepting balls. 65128 [2025-04-26 16:25:55,327 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 16:25:55,327 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 16:25:55,330 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2025-04-26 16:25:55,330 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2025-04-26 16:25:55,330 INFO L340 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2025-04-26 16:25:55,330 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 65319 states, but on-demand construction may add more states [2025-04-26 16:25:56,982 INFO L131 ngComponentsAnalysis]: Automaton has 1267 accepting balls. 65128 [2025-04-26 16:25:56,982 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 16:25:56,983 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 16:25:56,983 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2025-04-26 16:25:56,983 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2025-04-26 16:25:56,988 INFO L752 eck$LassoCheckResult]: Stem: "[104] $Ultimate##0-->L20: Formula: (and (= v_f3_4 0) (= v_f2_4 0) (= v_f6_1 0) (= v_x5_1 0) (= v_f1_3 0) (= v_f5_1 0) (= v_x3_5 0) (= v_x1_5 0) (= v_x4_1 0) (= v_f4_2 0) (= v_x2_5 0) (= v_x6_1 0)) InVars {f6=v_f6_1, f4=v_f4_2, x6=v_x6_1, f5=v_f5_1, f2=v_f2_4, x4=v_x4_1, f3=v_f3_4, x5=v_x5_1, x2=v_x2_5, f1=v_f1_3, x3=v_x3_5, x1=v_x1_5} OutVars{f6=v_f6_1, f4=v_f4_2, x6=v_x6_1, f5=v_f5_1, f2=v_f2_4, x4=v_x4_1, f3=v_f3_4, x5=v_x5_1, x2=v_x2_5, f1=v_f1_3, x3=v_x3_5, x1=v_x1_5} AuxVars[] AssignedVars[]" "[183] L20-->L41-1: Formula: (= v_thread1Thread1of1ForFork5_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork5_thidvar0=v_thread1Thread1of1ForFork5_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork5_thidvar0]" [2025-04-26 16:25:56,988 INFO L754 eck$LassoCheckResult]: Loop: "[131] L41-1-->L39: 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[]" "[133] L39-->L40: Formula: (= v_x1_2 (+ v_x1_3 1)) InVars {x1=v_x1_3} OutVars{x1=v_x1_2} AuxVars[] AssignedVars[x1]" "[134] L40-->L41: Formula: (= v_f2_1 1) InVars {} OutVars{f2=v_f2_1} AuxVars[] AssignedVars[f2]" "[135] L41-->L41-1: Formula: (and (< 0 v_f1_6) (= v_f1_5 0)) InVars {f1=v_f1_6} OutVars{f1=v_f1_5} AuxVars[] AssignedVars[f1]" [2025-04-26 16:25:56,991 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:25:56,991 INFO L85 PathProgramCache]: Analyzing trace with hash 4368, now seen corresponding path program 1 times [2025-04-26 16:25:56,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:25:56,996 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654652117] [2025-04-26 16:25:56,996 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:25:56,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:25:57,040 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:25:57,047 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:25:57,047 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:25:57,047 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:25:57,048 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:25:57,052 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:25:57,055 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:25:57,055 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:25:57,056 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:25:57,073 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:25:57,076 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:25:57,076 INFO L85 PathProgramCache]: Analyzing trace with hash 4958244, now seen corresponding path program 1 times [2025-04-26 16:25:57,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:25:57,076 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363804396] [2025-04-26 16:25:57,076 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:25:57,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:25:57,081 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-26 16:25:57,085 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-26 16:25:57,085 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:25:57,085 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:25:57,085 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:25:57,086 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-26 16:25:57,088 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-26 16:25:57,088 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:25:57,088 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:25:57,091 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:25:57,092 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:25:57,092 INFO L85 PathProgramCache]: Analyzing trace with hash -256992845, now seen corresponding path program 1 times [2025-04-26 16:25:57,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:25:57,092 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030614886] [2025-04-26 16:25:57,092 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:25:57,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:25:57,098 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-04-26 16:25:57,101 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-04-26 16:25:57,102 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:25:57,102 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:25:57,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-26 16:25:57,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-26 16:25:57,175 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030614886] [2025-04-26 16:25:57,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2030614886] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-26 16:25:57,176 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-26 16:25:57,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-04-26 16:25:57,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491957862] [2025-04-26 16:25:57,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-26 16:25:57,243 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:25:57,243 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:25:57,244 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:25:57,244 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:25:57,244 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-04-26 16:25:57,244 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:25:57,244 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:25:57,244 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:25:57,244 INFO L132 ssoRankerPreferences]: Filename of dumped script: interleaved6.c.bpl_petrified1_Iteration1_Loop [2025-04-26 16:25:57,244 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:25:57,244 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:25:57,319 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:25:57,342 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:25:57,357 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:25:57,427 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:25:57,429 INFO L367 LassoAnalysis]: Checking for nontermination... [2025-04-26 16:25:57,431 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:25:57,431 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:25:57,433 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:25:57,435 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2025-04-26 16:25:57,440 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:25:57,440 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:25:57,460 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 16:25:57,460 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {f2=1} Honda state: {f2=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-04-26 16:25:57,468 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2025-04-26 16:25:57,469 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:25:57,469 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:25:57,470 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:25:57,471 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2025-04-26 16:25:57,473 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:25:57,473 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:25:57,491 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2025-04-26 16:25:57,491 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:25:57,491 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:25:57,493 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:25:57,494 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2025-04-26 16:25:57,497 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 16:25:57,497 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:25:57,546 INFO L407 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-04-26 16:25:57,554 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2025-04-26 16:25:57,554 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:25:57,554 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:25:57,554 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:25:57,554 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:25:57,554 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-04-26 16:25:57,554 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:25:57,554 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:25:57,554 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:25:57,554 INFO L132 ssoRankerPreferences]: Filename of dumped script: interleaved6.c.bpl_petrified1_Iteration1_Loop [2025-04-26 16:25:57,554 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:25:57,554 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:25:57,555 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:25:57,567 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:25:57,570 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:25:57,614 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:25:57,617 INFO L453 LassoAnalysis]: Using template 'affine'. [2025-04-26 16:25:57,618 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:25:57,619 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:25:57,620 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:25:57,622 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2025-04-26 16:25:57,627 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-04-26 16:25:57,639 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:25:57,640 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-04-26 16:25:57,640 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:25:57,640 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:25:57,640 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:25:57,645 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-04-26 16:25:57,645 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-04-26 16:25:57,647 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-04-26 16:25:57,651 INFO L436 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-04-26 16:25:57,652 INFO L437 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-04-26 16:25:57,653 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:25:57,653 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:25:57,656 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:25:57,657 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2025-04-26 16:25:57,661 INFO L436 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-04-26 16:25:57,664 ERROR L418 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Exception during sending of exit command (exit): Broken pipe [2025-04-26 16:25:57,666 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2025-04-26 16:25:57,670 INFO L439 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-04-26 16:25:57,671 INFO L476 LassoAnalysis]: Proved termination. [2025-04-26 16:25:57,671 INFO L478 LassoAnalysis]: Termination argument consisting of: Ranking function f(f1) = 1*f1 Supporting invariants [] [2025-04-26 16:25:57,678 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2025-04-26 16:25:57,681 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-04-26 16:25:57,702 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:25:57,721 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:25:57,730 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:25:57,731 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:25:57,731 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:25:57,732 INFO L256 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-04-26 16:25:57,732 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:25:57,748 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-26 16:25:57,751 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-26 16:25:57,751 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:25:57,751 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:25:57,751 INFO L256 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-04-26 16:25:57,752 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:25:57,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-26 16:25:57,802 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2025-04-26 16:25:57,804 INFO L70 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand currently 65319 states, but on-demand construction may add more states Second operand has 3 states, 3 states have (on average 2.0) internal successors, (in total 6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:26:02,653 INFO L74 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand currently 65319 states, but on-demand construction may add more states. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (in total 6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) Result 225242 states and 1407192 transitions. Complement of second has 5 states. [2025-04-26 16:26:02,656 INFO L140 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2025-04-26 16:26:02,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (in total 6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:26:02,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 85 transitions. [2025-04-26 16:26:02,664 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 3 states and 85 transitions. Stem has 2 letters. Loop has 4 letters. [2025-04-26 16:26:02,664 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:26:02,664 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 3 states and 85 transitions. Stem has 6 letters. Loop has 4 letters. [2025-04-26 16:26:02,665 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:26:02,665 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 3 states and 85 transitions. Stem has 2 letters. Loop has 8 letters. [2025-04-26 16:26:02,665 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:26:02,665 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 225242 states and 1407192 transitions. [2025-04-26 16:26:08,085 INFO L131 ngComponentsAnalysis]: Automaton has 4386 accepting balls. 120228 [2025-04-26 16:26:12,644 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 225242 states to 196608 states and 1232594 transitions. [2025-04-26 16:26:12,645 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 120922 [2025-04-26 16:26:13,433 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 150114 [2025-04-26 16:26:13,433 INFO L74 IsDeterministic]: Start isDeterministic. Operand 196608 states and 1232594 transitions. [2025-04-26 16:26:13,434 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-04-26 16:26:13,434 INFO L218 hiAutomatonCegarLoop]: Abstraction has 196608 states and 1232594 transitions. [2025-04-26 16:26:14,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196608 states and 1232594 transitions. [2025-04-26 16:26:19,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196608 to 142662. [2025-04-26 16:26:20,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142662 states, 142662 states have (on average 6.36117536554934) internal successors, (in total 907498), 142661 states have internal predecessors, (907498), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:26:22,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142662 states to 142662 states and 907498 transitions. [2025-04-26 16:26:22,035 INFO L240 hiAutomatonCegarLoop]: Abstraction has 142662 states and 907498 transitions. [2025-04-26 16:26:22,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-26 16:26:22,038 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-26 16:26:22,038 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-26 16:26:22,039 INFO L87 Difference]: Start difference. First operand 142662 states and 907498 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (in total 6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:26:25,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-26 16:26:25,656 INFO L93 Difference]: Finished difference Result 189223 states and 1104804 transitions. [2025-04-26 16:26:25,656 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 189223 states and 1104804 transitions. [2025-04-26 16:26:30,776 INFO L131 ngComponentsAnalysis]: Automaton has 5264 accepting balls. 151076 [2025-04-26 16:26:34,046 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 189223 states to 151772 states and 895847 transitions. [2025-04-26 16:26:34,046 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 151772 [2025-04-26 16:26:34,626 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 151772 [2025-04-26 16:26:34,626 INFO L74 IsDeterministic]: Start isDeterministic. Operand 151772 states and 895847 transitions. [2025-04-26 16:26:35,262 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-04-26 16:26:35,263 INFO L218 hiAutomatonCegarLoop]: Abstraction has 151772 states and 895847 transitions. [2025-04-26 16:26:35,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151772 states and 895847 transitions. [2025-04-26 16:26:38,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151772 to 96040. [2025-04-26 16:26:39,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96040 states, 96040 states have (on average 5.945512286547272) internal successors, (in total 571007), 96039 states have internal predecessors, (571007), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:26:40,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96040 states to 96040 states and 571007 transitions. [2025-04-26 16:26:40,015 INFO L240 hiAutomatonCegarLoop]: Abstraction has 96040 states and 571007 transitions. [2025-04-26 16:26:40,015 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-26 16:26:40,016 INFO L438 stractBuchiCegarLoop]: Abstraction has 96040 states and 571007 transitions. [2025-04-26 16:26:40,016 INFO L340 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2025-04-26 16:26:40,016 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand 96040 states and 571007 transitions. [2025-04-26 16:26:41,375 INFO L131 ngComponentsAnalysis]: Automaton has 2384 accepting balls. 95852 [2025-04-26 16:26:41,375 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 16:26:41,375 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 16:26:41,377 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2025-04-26 16:26:41,377 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2025-04-26 16:26:41,377 INFO L752 eck$LassoCheckResult]: Stem: "[104] $Ultimate##0-->L20: Formula: (and (= v_f3_4 0) (= v_f2_4 0) (= v_f6_1 0) (= v_x5_1 0) (= v_f1_3 0) (= v_f5_1 0) (= v_x3_5 0) (= v_x1_5 0) (= v_x4_1 0) (= v_f4_2 0) (= v_x2_5 0) (= v_x6_1 0)) InVars {f6=v_f6_1, f4=v_f4_2, x6=v_x6_1, f5=v_f5_1, f2=v_f2_4, x4=v_x4_1, f3=v_f3_4, x5=v_x5_1, x2=v_x2_5, f1=v_f1_3, x3=v_x3_5, x1=v_x1_5} OutVars{f6=v_f6_1, f4=v_f4_2, x6=v_x6_1, f5=v_f5_1, f2=v_f2_4, x4=v_x4_1, f3=v_f3_4, x5=v_x5_1, x2=v_x2_5, f1=v_f1_3, x3=v_x3_5, x1=v_x1_5} AuxVars[] AssignedVars[]" "[183] L20-->L41-1: Formula: (= v_thread1Thread1of1ForFork5_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork5_thidvar0=v_thread1Thread1of1ForFork5_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork5_thidvar0]" "[168] L20-1-->L52: Formula: (and (= 2 v_thread2Thread1of1ForFork0_thidvar0_2) (= 2 v_thread2Thread1of1ForFork0_thidvar1_2)) InVars {} OutVars{thread2Thread1of1ForFork0_thidvar1=v_thread2Thread1of1ForFork0_thidvar1_2, thread2Thread1of1ForFork0_thidvar0=v_thread2Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork0_thidvar1, thread2Thread1of1ForFork0_thidvar0]" [2025-04-26 16:26:41,377 INFO L754 eck$LassoCheckResult]: Loop: "[137] L52-->L54: 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[]" "[139] L54-->L54-1: Formula: (and (< 0 v_f2_6) (= v_f2_5 0)) InVars {f2=v_f2_6} OutVars{f2=v_f2_5} AuxVars[] AssignedVars[f2]" "[140] L54-1-->L60: Formula: (= v_x2_3 (+ v_x2_4 1)) InVars {x2=v_x2_4} OutVars{x2=v_x2_3} AuxVars[] AssignedVars[x2]" "[141] L60-->L52: Formula: (= v_f3_1 1) InVars {} OutVars{f3=v_f3_1} AuxVars[] AssignedVars[f3]" [2025-04-26 16:26:41,378 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:26:41,378 INFO L85 PathProgramCache]: Analyzing trace with hash 135576, now seen corresponding path program 1 times [2025-04-26 16:26:41,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:26:41,378 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483074719] [2025-04-26 16:26:41,378 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:26:41,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:26:41,381 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:26:41,384 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:26:41,384 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:26:41,384 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:26:41,384 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:26:41,385 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:26:41,389 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:26:41,390 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:26:41,390 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:26:41,391 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:26:41,392 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:26:41,392 INFO L85 PathProgramCache]: Analyzing trace with hash 5142948, now seen corresponding path program 1 times [2025-04-26 16:26:41,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:26:41,392 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024781456] [2025-04-26 16:26:41,392 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:26:41,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:26:41,396 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-26 16:26:41,398 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-26 16:26:41,398 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:26:41,398 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:26:41,398 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:26:41,399 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-26 16:26:41,400 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-26 16:26:41,400 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:26:41,400 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:26:41,401 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:26:41,401 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:26:41,402 INFO L85 PathProgramCache]: Analyzing trace with hash 657450939, now seen corresponding path program 1 times [2025-04-26 16:26:41,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:26:41,402 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283690304] [2025-04-26 16:26:41,402 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:26:41,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:26:41,404 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-04-26 16:26:41,406 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-04-26 16:26:41,406 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:26:41,406 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:26:41,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-26 16:26:41,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-26 16:26:41,428 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283690304] [2025-04-26 16:26:41,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1283690304] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-26 16:26:41,428 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-26 16:26:41,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-26 16:26:41,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346092224] [2025-04-26 16:26:41,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-26 16:26:41,457 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:26:41,457 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:26:41,457 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:26:41,458 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:26:41,458 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-04-26 16:26:41,458 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:26:41,458 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:26:41,458 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:26:41,458 INFO L132 ssoRankerPreferences]: Filename of dumped script: interleaved6.c.bpl_petrified1_Iteration2_Loop [2025-04-26 16:26:41,458 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:26:41,458 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:26:41,458 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:26:41,462 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:26:41,467 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:26:41,500 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:26:41,500 INFO L367 LassoAnalysis]: Checking for nontermination... [2025-04-26 16:26:41,500 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:26:41,500 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:26:41,504 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:26:41,505 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2025-04-26 16:26:41,508 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:26:41,508 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:26:41,519 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 16:26:41,519 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {f3=1} Honda state: {f3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-04-26 16:26:41,523 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2025-04-26 16:26:41,523 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:26:41,524 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:26:41,525 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:26:41,526 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2025-04-26 16:26:41,527 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:26:41,527 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:26:41,542 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2025-04-26 16:26:41,542 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:26:41,542 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:26:41,544 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:26:41,544 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2025-04-26 16:26:41,545 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 16:26:41,545 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:26:41,570 INFO L407 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-04-26 16:26:41,573 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2025-04-26 16:26:41,573 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:26:41,573 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:26:41,573 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:26:41,573 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:26:41,573 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-04-26 16:26:41,573 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:26:41,573 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:26:41,573 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:26:41,573 INFO L132 ssoRankerPreferences]: Filename of dumped script: interleaved6.c.bpl_petrified1_Iteration2_Loop [2025-04-26 16:26:41,573 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:26:41,574 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:26:41,574 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:26:41,582 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:26:41,584 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:26:41,614 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:26:41,614 INFO L453 LassoAnalysis]: Using template 'affine'. [2025-04-26 16:26:41,614 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:26:41,614 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:26:41,616 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:26:41,616 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2025-04-26 16:26:41,617 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-04-26 16:26:41,627 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:26:41,627 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-04-26 16:26:41,627 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:26:41,627 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:26:41,627 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:26:41,628 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-04-26 16:26:41,628 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-04-26 16:26:41,634 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-04-26 16:26:41,640 INFO L436 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-04-26 16:26:41,640 INFO L437 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-04-26 16:26:41,640 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:26:41,640 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:26:41,642 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:26:41,646 INFO L436 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-04-26 16:26:41,649 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2025-04-26 16:26:41,650 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2025-04-26 16:26:41,650 INFO L439 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-04-26 16:26:41,650 INFO L476 LassoAnalysis]: Proved termination. [2025-04-26 16:26:41,650 INFO L478 LassoAnalysis]: Termination argument consisting of: Ranking function f(f2) = 1*f2 Supporting invariants [] [2025-04-26 16:26:41,663 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2025-04-26 16:26:41,664 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-04-26 16:26:41,677 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:26:41,684 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:26:41,688 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:26:41,688 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:26:41,688 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:26:41,689 INFO L256 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-04-26 16:26:41,689 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:26:41,698 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-26 16:26:41,699 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-26 16:26:41,699 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:26:41,699 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:26:41,700 INFO L256 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-04-26 16:26:41,700 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:26:41,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-26 16:26:41,730 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2025-04-26 16:26:41,730 INFO L70 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 96040 states and 571007 transitions. cyclomatic complexity: 477351 Second operand has 4 states, 4 states have (on average 1.75) internal successors, (in total 7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:26:47,035 INFO L74 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 96040 states and 571007 transitions. cyclomatic complexity: 477351. Second operand has 4 states, 4 states have (on average 1.75) internal successors, (in total 7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) Result 330634 states and 2024978 transitions. Complement of second has 5 states. [2025-04-26 16:26:47,035 INFO L140 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2025-04-26 16:26:47,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.75) internal successors, (in total 7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:26:47,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 89 transitions. [2025-04-26 16:26:47,036 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 3 states and 89 transitions. Stem has 3 letters. Loop has 4 letters. [2025-04-26 16:26:47,036 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:26:47,036 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 3 states and 89 transitions. Stem has 7 letters. Loop has 4 letters. [2025-04-26 16:26:47,036 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:26:47,036 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 3 states and 89 transitions. Stem has 3 letters. Loop has 8 letters. [2025-04-26 16:26:47,037 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:26:47,037 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 330634 states and 2024978 transitions. [2025-04-26 16:26:54,289 INFO L131 ngComponentsAnalysis]: Automaton has 8390 accepting balls. 182252 [2025-04-26 16:26:59,492 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 330634 states to 297138 states and 1832252 transitions. [2025-04-26 16:26:59,493 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 184046