/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/2_thr/glswitch.c.bpl -------------------------------------------------------------------------------- This is Ultimate 0.3.0-wip.dk.ample-buchi-601be74-m [2025-02-17 22:45:30,201 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-17 22:45:30,258 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/settings/buchiAutomizer/concurrent-automaton-noLbe.epf [2025-02-17 22:45:30,261 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-17 22:45:30,261 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-17 22:45:30,281 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-17 22:45:30,281 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-17 22:45:30,281 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-17 22:45:30,282 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-17 22:45:30,282 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-17 22:45:30,283 INFO L153 SettingsManager]: * Use SBE=true [2025-02-17 22:45:30,283 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2025-02-17 22:45:30,283 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2025-02-17 22:45:30,283 INFO L153 SettingsManager]: * Use old map elimination=false [2025-02-17 22:45:30,284 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2025-02-17 22:45:30,284 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2025-02-17 22:45:30,284 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2025-02-17 22:45:30,284 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-17 22:45:30,284 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2025-02-17 22:45:30,284 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-17 22:45:30,284 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-17 22:45:30,284 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-17 22:45:30,284 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-17 22:45:30,284 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2025-02-17 22:45:30,284 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2025-02-17 22:45:30,284 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2025-02-17 22:45:30,284 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-17 22:45:30,284 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-17 22:45:30,284 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-17 22:45:30,284 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2025-02-17 22:45:30,285 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-17 22:45:30,285 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-02-17 22:45:30,285 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-17 22:45:30,285 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-17 22:45:30,285 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-17 22:45:30,285 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2025-02-17 22:45:30,285 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR [2025-02-17 22:45:30,494 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-17 22:45:30,501 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-17 22:45:30,503 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-17 22:45:30,504 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2025-02-17 22:45:30,504 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2025-02-17 22:45:30,505 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/cav23-termute-examples/2_thr/glswitch.c.bpl [2025-02-17 22:45:30,506 INFO L110 BoogieParser]: Parsing: '/storage/cav23-termute-examples/2_thr/glswitch.c.bpl' [2025-02-17 22:45:30,519 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-17 22:45:30,520 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2025-02-17 22:45:30,521 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-17 22:45:30,521 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-17 22:45:30,521 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-17 22:45:30,527 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "glswitch.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:30" (1/1) ... [2025-02-17 22:45:30,531 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "glswitch.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:30" (1/1) ... [2025-02-17 22:45:30,535 INFO L138 Inliner]: procedures = 3, calls = 2, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2025-02-17 22:45:30,536 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-17 22:45:30,537 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-17 22:45:30,537 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-17 22:45:30,537 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-17 22:45:30,541 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "glswitch.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:30" (1/1) ... [2025-02-17 22:45:30,542 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "glswitch.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:30" (1/1) ... [2025-02-17 22:45:30,542 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "glswitch.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:30" (1/1) ... [2025-02-17 22:45:30,542 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "glswitch.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:30" (1/1) ... [2025-02-17 22:45:30,543 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "glswitch.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:30" (1/1) ... [2025-02-17 22:45:30,544 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "glswitch.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:30" (1/1) ... [2025-02-17 22:45:30,547 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "glswitch.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:30" (1/1) ... [2025-02-17 22:45:30,548 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "glswitch.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:30" (1/1) ... [2025-02-17 22:45:30,548 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "glswitch.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:30" (1/1) ... [2025-02-17 22:45:30,549 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-17 22:45:30,550 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-02-17 22:45:30,550 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-02-17 22:45:30,550 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-02-17 22:45:30,550 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "glswitch.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:30" (1/1) ... [2025-02-17 22:45:30,555 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:30,562 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:30,574 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:45:30,576 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2025-02-17 22:45:30,597 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2025-02-17 22:45:30,597 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-02-17 22:45:30,598 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-02-17 22:45:30,598 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2025-02-17 22:45:30,598 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-02-17 22:45:30,598 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-02-17 22:45:30,598 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2025-02-17 22:45:30,598 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-17 22:45:30,598 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-17 22:45:30,599 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-17 22:45:30,638 INFO L234 CfgBuilder]: Building ICFG [2025-02-17 22:45:30,640 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-17 22:45:30,711 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-17 22:45:30,711 INFO L283 CfgBuilder]: Performing block encoding [2025-02-17 22:45:30,718 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-17 22:45:30,718 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-17 22:45:30,720 INFO L201 PluginConnector]: Adding new model glswitch.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.02 10:45:30 BoogieIcfgContainer [2025-02-17 22:45:30,720 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-02-17 22:45:30,721 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2025-02-17 22:45:30,721 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2025-02-17 22:45:30,726 INFO L274 PluginConnector]: BuchiAutomizer initialized [2025-02-17 22:45:30,726 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-02-17 22:45:30,726 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "glswitch.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:30" (1/2) ... [2025-02-17 22:45:30,727 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@64d4414d and model type glswitch.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.02 10:45:30, skipping insertion in model container [2025-02-17 22:45:30,727 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-02-17 22:45:30,727 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "glswitch.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.02 10:45:30" (2/2) ... [2025-02-17 22:45:30,728 INFO L363 chiAutomizerObserver]: Analyzing ICFG glswitch.c.bpl [2025-02-17 22:45:30,787 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-02-17 22:45:30,815 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 28 places, 28 transitions, 70 flow [2025-02-17 22:45:30,828 INFO L124 PetriNetUnfolderBase]: 5/24 cut-off events. [2025-02-17 22:45:30,830 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-02-17 22:45:30,835 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33 conditions, 24 events. 5/24 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 43 event pairs, 0 based on Foata normal form. 0/19 useless extension candidates. Maximal degree in co-relation 22. Up to 3 conditions per place. [2025-02-17 22:45:30,836 INFO L82 GeneralOperation]: Start removeDead. Operand has 28 places, 28 transitions, 70 flow [2025-02-17 22:45:30,839 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 26 places, 24 transitions, 60 flow [2025-02-17 22:45:30,847 INFO L306 stractBuchiCegarLoop]: Interprodecural is true [2025-02-17 22:45:30,847 INFO L307 stractBuchiCegarLoop]: Hoare is None [2025-02-17 22:45:30,847 INFO L308 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2025-02-17 22:45:30,847 INFO L309 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2025-02-17 22:45:30,847 INFO L310 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2025-02-17 22:45:30,848 INFO L311 stractBuchiCegarLoop]: Difference is false [2025-02-17 22:45:30,848 INFO L312 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2025-02-17 22:45:30,848 INFO L316 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2025-02-17 22:45:30,849 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 0 states, but on-demand construction may add more states [2025-02-17 22:45:30,881 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 68 [2025-02-17 22:45:30,882 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-17 22:45:30,882 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-17 22:45:30,884 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1] [2025-02-17 22:45:30,884 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-02-17 22:45:30,884 INFO L338 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2025-02-17 22:45:30,884 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 81 states, but on-demand construction may add more states [2025-02-17 22:45:30,889 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 68 [2025-02-17 22:45:30,889 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-17 22:45:30,889 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-17 22:45:30,889 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1] [2025-02-17 22:45:30,890 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-02-17 22:45:30,893 INFO L752 eck$LassoCheckResult]: Stem: "[88] $Ultimate##0-->L22: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" [2025-02-17 22:45:30,894 INFO L754 eck$LassoCheckResult]: Loop: "[68] L22-->L24: Formula: (< v_x2_1 v_w_1) InVars {x2=v_x2_1, w=v_w_1} OutVars{x2=v_x2_1, w=v_w_1} AuxVars[] AssignedVars[]" "[71] L24-->L24-2: Formula: (<= v_g_3 0) InVars {g=v_g_3} OutVars{g=v_g_3} AuxVars[] AssignedVars[]" "[73] L24-2-->L22: Formula: (= v_x2_2 (+ v_x2_3 1)) InVars {x2=v_x2_3} OutVars{x2=v_x2_2} AuxVars[] AssignedVars[x2]" [2025-02-17 22:45:30,897 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:30,897 INFO L85 PathProgramCache]: Analyzing trace with hash 119, now seen corresponding path program 1 times [2025-02-17 22:45:30,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:45:30,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846938337] [2025-02-17 22:45:30,903 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:45:30,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:45:30,940 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-02-17 22:45:30,944 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-02-17 22:45:30,944 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:30,944 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:30,944 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:45:30,946 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-02-17 22:45:30,946 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-02-17 22:45:30,946 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:30,946 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:30,962 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:45:30,964 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:30,964 INFO L85 PathProgramCache]: Analyzing trace with hash 97413, now seen corresponding path program 1 times [2025-02-17 22:45:30,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:45:30,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389106997] [2025-02-17 22:45:30,964 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:45:30,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:45:30,967 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:45:30,970 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:45:30,970 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:30,970 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:30,970 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:45:30,971 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:45:30,972 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:45:30,972 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:30,972 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:30,973 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:45:30,974 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:30,974 INFO L85 PathProgramCache]: Analyzing trace with hash 3612751, now seen corresponding path program 1 times [2025-02-17 22:45:30,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:45:30,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675461241] [2025-02-17 22:45:30,974 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:45:30,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:45:30,976 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-17 22:45:30,978 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-17 22:45:30,978 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:30,978 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:30,978 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:45:30,979 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-17 22:45:30,980 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-17 22:45:30,980 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:30,980 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:30,981 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:45:31,017 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:45:31,017 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:45:31,017 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:45:31,017 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:45:31,018 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-17 22:45:31,018 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:31,018 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:45:31,018 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:45:31,018 INFO L132 ssoRankerPreferences]: Filename of dumped script: glswitch.c.bpl_petrified1_Iteration1_Loop [2025-02-17 22:45:31,018 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:45:31,018 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:45:31,026 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:31,032 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:31,064 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:45:31,064 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-17 22:45:31,066 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:31,066 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:31,067 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:45:31,068 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2025-02-17 22:45:31,076 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:45:31,076 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:45:31,096 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-02-17 22:45:31,097 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {g=0} Honda state: {g=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-02-17 22:45:31,102 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2025-02-17 22:45:31,102 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:31,103 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:31,104 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:45:31,105 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2025-02-17 22:45:31,108 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:45:31,109 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:45:31,128 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2025-02-17 22:45:31,129 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:31,129 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:31,130 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:45:31,131 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2025-02-17 22:45:31,133 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-17 22:45:31,133 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:45:31,204 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-17 22:45:31,208 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 22:45:31,209 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:45:31,209 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:45:31,209 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:45:31,209 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:45:31,209 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-17 22:45:31,209 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:31,209 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:45:31,209 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:45:31,209 INFO L132 ssoRankerPreferences]: Filename of dumped script: glswitch.c.bpl_petrified1_Iteration1_Loop [2025-02-17 22:45:31,209 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:45:31,209 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:45:31,210 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:31,223 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:31,257 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:45:31,260 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-17 22:45:31,261 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:31,261 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:31,264 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:45:31,265 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2025-02-17 22:45:31,266 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-02-17 22:45:31,278 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:45:31,278 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-17 22:45:31,279 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:45:31,279 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:45:31,279 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:45:31,282 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-17 22:45:31,282 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-17 22:45:31,284 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-17 22:45:31,289 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 22:45:31,289 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:31,289 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:31,291 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:45:31,291 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2025-02-17 22:45:31,293 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-02-17 22:45:31,304 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:45:31,304 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-17 22:45:31,304 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:45:31,304 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:45:31,304 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:45:31,305 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-17 22:45:31,305 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-17 22:45:31,308 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-17 22:45:31,315 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2025-02-17 22:45:31,315 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-02-17 22:45:31,316 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:31,316 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:31,318 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:45:31,319 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2025-02-17 22:45:31,320 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-17 22:45:31,320 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-02-17 22:45:31,320 INFO L474 LassoAnalysis]: Proved termination. [2025-02-17 22:45:31,320 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(w, x2) = 1*w - 1*x2 Supporting invariants [] [2025-02-17 22:45:31,326 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 22:45:31,329 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-02-17 22:45:31,352 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:31,359 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-02-17 22:45:31,359 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-02-17 22:45:31,359 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:31,359 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:45:31,360 WARN L254 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-17 22:45:31,361 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:45:31,368 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:45:31,370 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:45:31,370 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:31,370 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:45:31,370 WARN L254 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-17 22:45:31,371 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:45:31,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-17 22:45:31,427 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2025-02-17 22:45:31,431 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand currently 81 states, but on-demand construction may add more states Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:45:31,477 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2025-02-17 22:45:31,518 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand currently 81 states, but on-demand construction may add more states. Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 198 states and 502 transitions. Complement of second has 6 states. [2025-02-17 22:45:31,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2025-02-17 22:45:31,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:45:31,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 50 transitions. [2025-02-17 22:45:31,532 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 50 transitions. Stem has 1 letters. Loop has 3 letters. [2025-02-17 22:45:31,533 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:45:31,533 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 50 transitions. Stem has 4 letters. Loop has 3 letters. [2025-02-17 22:45:31,534 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:45:31,534 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 50 transitions. Stem has 1 letters. Loop has 6 letters. [2025-02-17 22:45:31,534 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:45:31,534 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 198 states and 502 transitions. [2025-02-17 22:45:31,555 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 48 [2025-02-17 22:45:31,561 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 198 states to 131 states and 344 transitions. [2025-02-17 22:45:31,562 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 61 [2025-02-17 22:45:31,562 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 84 [2025-02-17 22:45:31,562 INFO L73 IsDeterministic]: Start isDeterministic. Operand 131 states and 344 transitions. [2025-02-17 22:45:31,563 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-17 22:45:31,563 INFO L218 hiAutomatonCegarLoop]: Abstraction has 131 states and 344 transitions. [2025-02-17 22:45:31,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states and 344 transitions. [2025-02-17 22:45:31,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 111. [2025-02-17 22:45:31,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 111 states have (on average 2.5675675675675675) internal successors, (285), 110 states have internal predecessors, (285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:45:31,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 285 transitions. [2025-02-17 22:45:31,618 INFO L240 hiAutomatonCegarLoop]: Abstraction has 111 states and 285 transitions. [2025-02-17 22:45:31,618 INFO L432 stractBuchiCegarLoop]: Abstraction has 111 states and 285 transitions. [2025-02-17 22:45:31,618 INFO L338 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2025-02-17 22:45:31,618 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 111 states and 285 transitions. [2025-02-17 22:45:31,623 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 48 [2025-02-17 22:45:31,623 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-17 22:45:31,623 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-17 22:45:31,623 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2025-02-17 22:45:31,623 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2025-02-17 22:45:31,624 INFO L752 eck$LassoCheckResult]: Stem: "[88] $Ultimate##0-->L22: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" "[91] L13-->$Ultimate##0: Formula: (and (= 2 v_thread2Thread1of1ForFork1_thidvar1_2) (= 2 v_thread2Thread1of1ForFork1_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_2, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_thidvar0, thread2Thread1of1ForFork1_thidvar1]" "[75] $Ultimate##0-->L44-1: Formula: (< 0 v_d_4) InVars {d=v_d_4} OutVars{d=v_d_4} AuxVars[] AssignedVars[]" [2025-02-17 22:45:31,624 INFO L754 eck$LassoCheckResult]: Loop: "[77] L44-1-->L39: Formula: (< 0 v_f_1) InVars {f=v_f_1} OutVars{f=v_f_1} AuxVars[] AssignedVars[]" "[79] L39-->L40: Formula: (= v_x1_2 (+ v_x1_3 v_d_3)) InVars {x1=v_x1_3, d=v_d_3} OutVars{x1=v_x1_2, d=v_d_3} AuxVars[] AssignedVars[x1]" "[81] L40-->L40-2: Formula: (< v_z_2 v_x1_5) InVars {x1=v_x1_5, z=v_z_2} OutVars{x1=v_x1_5, z=v_z_2} AuxVars[] AssignedVars[]" "[84] L40-2-->L44-1: Formula: (< v_x1_1 v_y_1) InVars {y=v_y_1, x1=v_x1_1} OutVars{y=v_y_1, x1=v_x1_1} AuxVars[] AssignedVars[]" [2025-02-17 22:45:31,625 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:31,625 INFO L85 PathProgramCache]: Analyzing trace with hash 117255, now seen corresponding path program 1 times [2025-02-17 22:45:31,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:45:31,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635831016] [2025-02-17 22:45:31,625 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:45:31,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:45:31,629 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:45:31,630 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:45:31,630 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:31,630 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:31,630 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:45:31,632 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:45:31,633 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:45:31,633 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:31,633 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:31,633 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:45:31,634 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:31,634 INFO L85 PathProgramCache]: Analyzing trace with hash 3295942, now seen corresponding path program 1 times [2025-02-17 22:45:31,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:45:31,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526359602] [2025-02-17 22:45:31,634 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:45:31,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:45:31,637 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-17 22:45:31,639 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-17 22:45:31,639 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:31,639 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:31,639 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:45:31,640 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-17 22:45:31,644 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-17 22:45:31,644 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:31,644 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:31,645 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:45:31,645 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:31,645 INFO L85 PathProgramCache]: Analyzing trace with hash 915644876, now seen corresponding path program 1 times [2025-02-17 22:45:31,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:45:31,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934005743] [2025-02-17 22:45:31,645 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:45:31,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:45:31,652 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-17 22:45:31,655 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-17 22:45:31,655 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:31,655 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:31,655 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:45:31,656 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-17 22:45:31,659 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-17 22:45:31,660 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:31,660 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:31,661 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:45:31,728 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:45:31,728 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:45:31,728 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:45:31,729 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:45:31,729 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-17 22:45:31,729 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:31,729 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:45:31,729 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:45:31,729 INFO L132 ssoRankerPreferences]: Filename of dumped script: glswitch.c.bpl_petrified1_Iteration2_Lasso [2025-02-17 22:45:31,729 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:45:31,729 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:45:31,730 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:31,735 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:31,740 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:31,750 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:31,755 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:31,802 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:45:31,802 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-17 22:45:31,802 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:31,802 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:31,806 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:45:31,807 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2025-02-17 22:45:31,808 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:45:31,808 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:45:31,825 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-02-17 22:45:31,826 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {f=1} Honda state: {f=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-02-17 22:45:31,831 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 22:45:31,832 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:31,832 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:31,833 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:45:31,835 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2025-02-17 22:45:31,836 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:45:31,836 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:45:31,848 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-02-17 22:45:31,848 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {thread2Thread1of1ForFork1_thidvar0=0} Honda state: {thread2Thread1of1ForFork1_thidvar0=2} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-02-17 22:45:31,854 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 [2025-02-17 22:45:31,855 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:31,855 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:31,856 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:45:31,858 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2025-02-17 22:45:31,859 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:45:31,860 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:45:31,879 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2025-02-17 22:45:31,881 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:31,881 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:31,883 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:45:31,885 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2025-02-17 22:45:31,886 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-17 22:45:31,886 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:45:32,078 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-17 22:45:32,087 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 [2025-02-17 22:45:32,087 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:45:32,088 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:45:32,088 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:45:32,088 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:45:32,088 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-17 22:45:32,088 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:32,088 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:45:32,088 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:45:32,088 INFO L132 ssoRankerPreferences]: Filename of dumped script: glswitch.c.bpl_petrified1_Iteration2_Lasso [2025-02-17 22:45:32,088 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:45:32,088 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:45:32,089 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:32,096 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:32,099 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:32,107 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:32,112 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:32,157 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:45:32,157 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-17 22:45:32,157 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:32,157 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:32,198 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:45:32,200 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2025-02-17 22:45:32,201 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-02-17 22:45:32,211 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:45:32,211 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-17 22:45:32,211 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:45:32,211 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:45:32,211 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:45:32,212 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-17 22:45:32,212 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-17 22:45:32,213 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-17 22:45:32,219 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2025-02-17 22:45:32,219 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:32,219 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:32,221 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:45:32,223 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2025-02-17 22:45:32,224 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-02-17 22:45:32,233 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:45:32,234 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:45:32,234 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:45:32,234 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:45:32,237 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-02-17 22:45:32,237 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-02-17 22:45:32,241 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-17 22:45:32,246 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2025-02-17 22:45:32,246 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:32,247 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:32,248 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:45:32,250 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2025-02-17 22:45:32,250 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-02-17 22:45:32,260 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:45:32,260 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:45:32,260 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:45:32,260 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:45:32,268 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-02-17 22:45:32,268 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-02-17 22:45:32,274 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-17 22:45:32,283 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2025-02-17 22:45:32,283 INFO L444 ModelExtractionUtils]: 7 out of 16 variables were initially zero. Simplification set additionally 3 variables to zero. [2025-02-17 22:45:32,284 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:32,284 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:32,285 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:45:32,287 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2025-02-17 22:45:32,288 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-17 22:45:32,300 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2025-02-17 22:45:32,300 INFO L474 LassoAnalysis]: Proved termination. [2025-02-17 22:45:32,300 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(y, x1) = 1*y - 1*x1 Supporting invariants [1*d - 1 >= 0] [2025-02-17 22:45:32,305 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 22:45:32,313 INFO L156 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2025-02-17 22:45:32,335 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:32,341 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:45:32,342 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:45:32,342 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:32,342 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:45:32,342 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-17 22:45:32,342 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:45:32,351 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-17 22:45:32,352 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-17 22:45:32,352 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:32,352 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:45:32,354 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-17 22:45:32,354 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:45:32,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-17 22:45:32,399 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2025-02-17 22:45:32,400 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 111 states and 285 transitions. cyclomatic complexity: 185 Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:45:32,468 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 111 states and 285 transitions. cyclomatic complexity: 185. 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 385 states and 985 transitions. Complement of second has 7 states. [2025-02-17 22:45:32,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2025-02-17 22:45:32,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:45:32,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 47 transitions. [2025-02-17 22:45:32,469 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 47 transitions. Stem has 3 letters. Loop has 4 letters. [2025-02-17 22:45:32,469 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:45:32,469 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 47 transitions. Stem has 7 letters. Loop has 4 letters. [2025-02-17 22:45:32,469 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:45:32,469 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 47 transitions. Stem has 3 letters. Loop has 8 letters. [2025-02-17 22:45:32,469 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:45:32,470 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 385 states and 985 transitions. [2025-02-17 22:45:32,475 INFO L131 ngComponentsAnalysis]: Automaton has 16 accepting balls. 96 [2025-02-17 22:45:32,482 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 385 states to 385 states and 985 transitions. [2025-02-17 22:45:32,482 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 156 [2025-02-17 22:45:32,482 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 171 [2025-02-17 22:45:32,482 INFO L73 IsDeterministic]: Start isDeterministic. Operand 385 states and 985 transitions. [2025-02-17 22:45:32,482 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-17 22:45:32,483 INFO L218 hiAutomatonCegarLoop]: Abstraction has 385 states and 985 transitions. [2025-02-17 22:45:32,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 385 states and 985 transitions. [2025-02-17 22:45:32,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 385 to 318. [2025-02-17 22:45:32,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 318 states, 318 states have (on average 2.638364779874214) internal successors, (839), 317 states have internal predecessors, (839), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:45:32,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 839 transitions. [2025-02-17 22:45:32,501 INFO L240 hiAutomatonCegarLoop]: Abstraction has 318 states and 839 transitions. [2025-02-17 22:45:32,501 INFO L432 stractBuchiCegarLoop]: Abstraction has 318 states and 839 transitions. [2025-02-17 22:45:32,501 INFO L338 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2025-02-17 22:45:32,501 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 318 states and 839 transitions. [2025-02-17 22:45:32,502 INFO L131 ngComponentsAnalysis]: Automaton has 16 accepting balls. 96 [2025-02-17 22:45:32,502 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-17 22:45:32,502 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-17 22:45:32,503 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2025-02-17 22:45:32,503 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2025-02-17 22:45:32,503 INFO L752 eck$LassoCheckResult]: Stem: "[88] $Ultimate##0-->L22: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" "[91] L13-->$Ultimate##0: Formula: (and (= 2 v_thread2Thread1of1ForFork1_thidvar1_2) (= 2 v_thread2Thread1of1ForFork1_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_2, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_thidvar0, thread2Thread1of1ForFork1_thidvar1]" "[75] $Ultimate##0-->L44-1: Formula: (< 0 v_d_4) InVars {d=v_d_4} OutVars{d=v_d_4} AuxVars[] AssignedVars[]" "[67] L22-->thread1FINAL: Formula: (<= v_w_2 v_x2_4) InVars {x2=v_x2_4, w=v_w_2} OutVars{x2=v_x2_4, w=v_w_2} AuxVars[] AssignedVars[]" [2025-02-17 22:45:32,503 INFO L754 eck$LassoCheckResult]: Loop: "[77] L44-1-->L39: Formula: (< 0 v_f_1) InVars {f=v_f_1} OutVars{f=v_f_1} AuxVars[] AssignedVars[]" "[79] L39-->L40: Formula: (= v_x1_2 (+ v_x1_3 v_d_3)) InVars {x1=v_x1_3, d=v_d_3} OutVars{x1=v_x1_2, d=v_d_3} AuxVars[] AssignedVars[x1]" "[81] L40-->L40-2: Formula: (< v_z_2 v_x1_5) InVars {x1=v_x1_5, z=v_z_2} OutVars{x1=v_x1_5, z=v_z_2} AuxVars[] AssignedVars[]" "[83] L40-2-->L46: Formula: (<= v_y_2 v_x1_6) InVars {y=v_y_2, x1=v_x1_6} OutVars{y=v_y_2, x1=v_x1_6} AuxVars[] AssignedVars[]" "[85] L46-->L44-1: Formula: (= v_f_4 0) InVars {} OutVars{f=v_f_4} AuxVars[] AssignedVars[f]" [2025-02-17 22:45:32,503 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:32,503 INFO L85 PathProgramCache]: Analyzing trace with hash 3634972, now seen corresponding path program 1 times [2025-02-17 22:45:32,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:45:32,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766954874] [2025-02-17 22:45:32,504 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:45:32,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:45:32,505 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-17 22:45:32,506 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-17 22:45:32,506 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:32,506 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:32,506 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:45:32,507 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-17 22:45:32,508 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-17 22:45:32,508 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:32,508 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:32,508 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:45:32,509 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:32,509 INFO L85 PathProgramCache]: Analyzing trace with hash 102174256, now seen corresponding path program 1 times [2025-02-17 22:45:32,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:45:32,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842291573] [2025-02-17 22:45:32,509 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:45:32,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:45:32,510 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-17 22:45:32,511 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-17 22:45:32,513 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:32,513 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:32,513 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:45:32,514 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-17 22:45:32,516 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-17 22:45:32,517 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:32,517 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:32,517 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:45:32,518 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:32,518 INFO L85 PathProgramCache]: Analyzing trace with hash -821768203, now seen corresponding path program 1 times [2025-02-17 22:45:32,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:45:32,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895819201] [2025-02-17 22:45:32,518 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:45:32,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:45:32,519 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-02-17 22:45:32,521 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-02-17 22:45:32,521 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:32,521 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:32,521 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:45:32,522 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-02-17 22:45:32,526 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-02-17 22:45:32,527 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:32,527 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:32,528 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:45:32,555 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:45:32,555 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:45:32,556 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:45:32,556 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:45:32,556 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-17 22:45:32,556 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:32,556 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:45:32,556 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:45:32,556 INFO L132 ssoRankerPreferences]: Filename of dumped script: glswitch.c.bpl_petrified1_Iteration3_Loop [2025-02-17 22:45:32,556 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:45:32,556 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:45:32,556 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:32,562 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:32,591 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:45:32,591 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-17 22:45:32,591 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:32,591 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:32,594 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:45:32,595 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2025-02-17 22:45:32,596 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:45:32,596 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:45:32,614 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-02-17 22:45:32,614 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {y=0, x1=4, d=0, z=0} Honda state: {y=0, x1=4, d=0, z=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-02-17 22:45:32,620 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2025-02-17 22:45:32,620 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:32,620 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:32,622 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:45:32,623 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2025-02-17 22:45:32,624 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:45:32,625 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:45:32,641 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 22:45:32,641 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:32,641 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:32,643 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:45:32,644 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2025-02-17 22:45:32,645 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-17 22:45:32,645 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:45:32,667 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-17 22:45:32,670 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2025-02-17 22:45:32,671 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:45:32,671 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:45:32,671 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:45:32,671 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:45:32,671 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-17 22:45:32,671 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:32,671 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:45:32,671 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:45:32,671 INFO L132 ssoRankerPreferences]: Filename of dumped script: glswitch.c.bpl_petrified1_Iteration3_Loop [2025-02-17 22:45:32,671 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:45:32,671 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:45:32,672 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:32,678 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:32,705 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:45:32,706 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-17 22:45:32,706 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:32,706 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:32,710 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:45:32,712 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2025-02-17 22:45:32,713 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-02-17 22:45:32,722 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:45:32,722 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-17 22:45:32,722 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:45:32,722 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:45:32,722 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:45:32,724 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-17 22:45:32,724 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-17 22:45:32,725 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-17 22:45:32,730 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2025-02-17 22:45:32,731 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:32,731 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:32,732 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:45:32,734 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2025-02-17 22:45:32,735 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-02-17 22:45:32,744 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:45:32,744 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-17 22:45:32,744 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:45:32,744 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:45:32,744 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:45:32,747 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-17 22:45:32,747 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-17 22:45:32,749 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-17 22:45:32,754 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-02-17 22:45:32,754 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-02-17 22:45:32,754 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:32,754 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:32,757 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 22:45:32,758 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-17 22:45:32,758 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-02-17 22:45:32,758 INFO L474 LassoAnalysis]: Proved termination. [2025-02-17 22:45:32,758 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(f) = 1*f Supporting invariants [] [2025-02-17 22:45:32,762 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 22:45:32,764 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2025-02-17 22:45:32,765 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-02-17 22:45:32,775 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:32,778 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-17 22:45:32,780 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-17 22:45:32,780 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:32,780 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:45:32,780 INFO L256 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-17 22:45:32,780 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:45:32,787 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-17 22:45:32,788 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-17 22:45:32,788 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:32,788 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:45:32,789 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-17 22:45:32,789 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:45:32,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-17 22:45:32,802 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2025-02-17 22:45:32,802 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 318 states and 839 transitions. cyclomatic complexity: 554 Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 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 22:45:32,841 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 318 states and 839 transitions. cyclomatic complexity: 554. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 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 682 states and 1642 transitions. Complement of second has 7 states. [2025-02-17 22:45:32,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2025-02-17 22:45:32,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 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 22:45:32,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 48 transitions. [2025-02-17 22:45:32,842 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 48 transitions. Stem has 4 letters. Loop has 5 letters. [2025-02-17 22:45:32,842 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:45:32,842 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 48 transitions. Stem has 9 letters. Loop has 5 letters. [2025-02-17 22:45:32,842 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:45:32,842 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 48 transitions. Stem has 4 letters. Loop has 10 letters. [2025-02-17 22:45:32,842 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:45:32,842 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 682 states and 1642 transitions. [2025-02-17 22:45:32,850 INFO L131 ngComponentsAnalysis]: Automaton has 19 accepting balls. 108 [2025-02-17 22:45:32,856 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 682 states to 578 states and 1385 transitions. [2025-02-17 22:45:32,856 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 190 [2025-02-17 22:45:32,857 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 228 [2025-02-17 22:45:32,857 INFO L73 IsDeterministic]: Start isDeterministic. Operand 578 states and 1385 transitions. [2025-02-17 22:45:32,857 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-17 22:45:32,857 INFO L218 hiAutomatonCegarLoop]: Abstraction has 578 states and 1385 transitions. [2025-02-17 22:45:32,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 578 states and 1385 transitions. [2025-02-17 22:45:32,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 578 to 467. [2025-02-17 22:45:32,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 467 states, 467 states have (on average 2.4967880085653107) internal successors, (1166), 466 states have internal predecessors, (1166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:45:32,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 467 states to 467 states and 1166 transitions. [2025-02-17 22:45:32,880 INFO L240 hiAutomatonCegarLoop]: Abstraction has 467 states and 1166 transitions. [2025-02-17 22:45:32,880 INFO L432 stractBuchiCegarLoop]: Abstraction has 467 states and 1166 transitions. [2025-02-17 22:45:32,880 INFO L338 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2025-02-17 22:45:32,880 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 467 states and 1166 transitions. [2025-02-17 22:45:32,883 INFO L131 ngComponentsAnalysis]: Automaton has 19 accepting balls. 108 [2025-02-17 22:45:32,884 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-17 22:45:32,884 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-17 22:45:32,884 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2025-02-17 22:45:32,884 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2025-02-17 22:45:32,884 INFO L752 eck$LassoCheckResult]: Stem: "[88] $Ultimate##0-->L22: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" "[91] L13-->$Ultimate##0: Formula: (and (= 2 v_thread2Thread1of1ForFork1_thidvar1_2) (= 2 v_thread2Thread1of1ForFork1_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_2, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_thidvar0, thread2Thread1of1ForFork1_thidvar1]" "[75] $Ultimate##0-->L44-1: Formula: (< 0 v_d_4) InVars {d=v_d_4} OutVars{d=v_d_4} AuxVars[] AssignedVars[]" "[68] L22-->L24: Formula: (< v_x2_1 v_w_1) InVars {x2=v_x2_1, w=v_w_1} OutVars{x2=v_x2_1, w=v_w_1} AuxVars[] AssignedVars[]" [2025-02-17 22:45:32,884 INFO L754 eck$LassoCheckResult]: Loop: "[77] L44-1-->L39: Formula: (< 0 v_f_1) InVars {f=v_f_1} OutVars{f=v_f_1} AuxVars[] AssignedVars[]" "[79] L39-->L40: Formula: (= v_x1_2 (+ v_x1_3 v_d_3)) InVars {x1=v_x1_3, d=v_d_3} OutVars{x1=v_x1_2, d=v_d_3} AuxVars[] AssignedVars[x1]" "[81] L40-->L40-2: Formula: (< v_z_2 v_x1_5) InVars {x1=v_x1_5, z=v_z_2} OutVars{x1=v_x1_5, z=v_z_2} AuxVars[] AssignedVars[]" "[83] L40-2-->L46: Formula: (<= v_y_2 v_x1_6) InVars {y=v_y_2, x1=v_x1_6} OutVars{y=v_y_2, x1=v_x1_6} AuxVars[] AssignedVars[]" "[85] L46-->L44-1: Formula: (= v_f_4 0) InVars {} OutVars{f=v_f_4} AuxVars[] AssignedVars[f]" [2025-02-17 22:45:32,885 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:32,885 INFO L85 PathProgramCache]: Analyzing trace with hash 3634973, now seen corresponding path program 1 times [2025-02-17 22:45:32,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:45:32,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857891611] [2025-02-17 22:45:32,885 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:45:32,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:45:32,889 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-17 22:45:32,891 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-17 22:45:32,892 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:32,892 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:32,892 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:45:32,893 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-17 22:45:32,894 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-17 22:45:32,894 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:32,894 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:32,895 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:45:32,895 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:32,895 INFO L85 PathProgramCache]: Analyzing trace with hash 102174256, now seen corresponding path program 2 times [2025-02-17 22:45:32,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:45:32,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988797959] [2025-02-17 22:45:32,896 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-17 22:45:32,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:45:32,901 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 5 statements into 1 equivalence classes. [2025-02-17 22:45:32,903 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-17 22:45:32,903 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-17 22:45:32,903 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:32,903 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:45:32,906 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-17 22:45:32,910 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-17 22:45:32,910 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:32,910 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:32,911 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:45:32,911 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:32,911 INFO L85 PathProgramCache]: Analyzing trace with hash -793139052, now seen corresponding path program 1 times [2025-02-17 22:45:32,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:45:32,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482799345] [2025-02-17 22:45:32,911 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:45:32,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:45:32,913 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-02-17 22:45:32,915 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-02-17 22:45:32,915 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:32,915 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:32,915 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:45:32,916 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-02-17 22:45:32,918 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-02-17 22:45:32,918 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:32,918 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:32,919 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:45:32,960 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:45:32,960 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:45:32,960 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:45:32,960 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:45:32,960 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-17 22:45:32,960 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:32,960 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:45:32,960 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:45:32,960 INFO L132 ssoRankerPreferences]: Filename of dumped script: glswitch.c.bpl_petrified1_Iteration4_Loop [2025-02-17 22:45:32,960 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:45:32,960 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:45:32,961 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:32,969 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2025-02-17 22:45:32,969 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:32,981 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 22:45:32,995 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:45:32,995 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-17 22:45:32,995 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:32,995 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:33,028 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 22:45:33,030 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 22:45:33,031 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:45:33,031 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:45:33,060 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-02-17 22:45:33,060 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {y=0, x1=4, d=0, z=0} Honda state: {y=0, x1=4, d=0, z=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-02-17 22:45:33,065 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 22:45:33,065 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:33,066 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:33,067 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 22:45:33,068 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 22:45:33,069 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:45:33,069 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:45:33,084 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2025-02-17 22:45:33,084 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:33,084 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:33,086 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 22:45:33,087 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 22:45:33,087 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-17 22:45:33,087 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:45:33,109 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-17 22:45:33,112 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 22:45:33,112 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:45:33,112 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:45:33,112 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:45:33,112 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:45:33,112 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-17 22:45:33,112 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:33,112 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:45:33,112 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:45:33,112 INFO L132 ssoRankerPreferences]: Filename of dumped script: glswitch.c.bpl_petrified1_Iteration4_Loop [2025-02-17 22:45:33,112 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:45:33,112 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:45:33,113 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:33,120 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:33,140 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:45:33,140 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-17 22:45:33,141 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:33,141 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:33,142 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 22:45:33,143 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 22:45:33,144 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-02-17 22:45:33,153 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:45:33,153 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-17 22:45:33,153 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:45:33,153 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:45:33,153 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:45:33,155 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-17 22:45:33,155 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-17 22:45:33,156 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-17 22:45:33,161 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 22:45:33,161 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:33,162 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:33,163 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:45:33,164 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2025-02-17 22:45:33,165 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-02-17 22:45:33,174 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:45:33,175 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-17 22:45:33,175 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:45:33,175 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:45:33,175 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:45:33,175 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-17 22:45:33,175 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-17 22:45:33,178 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-17 22:45:33,179 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-02-17 22:45:33,179 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-02-17 22:45:33,180 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:33,180 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:33,181 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:45:33,182 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2025-02-17 22:45:33,183 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-17 22:45:33,183 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-02-17 22:45:33,183 INFO L474 LassoAnalysis]: Proved termination. [2025-02-17 22:45:33,183 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(f) = 1*f Supporting invariants [] [2025-02-17 22:45:33,188 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2025-02-17 22:45:33,189 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-02-17 22:45:33,197 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:33,200 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-17 22:45:33,201 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-17 22:45:33,201 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:33,201 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:45:33,201 INFO L256 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-17 22:45:33,201 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:45:33,207 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-17 22:45:33,208 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-17 22:45:33,208 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:33,208 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:45:33,208 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-17 22:45:33,208 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:45:33,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-17 22:45:33,221 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2025-02-17 22:45:33,222 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 467 states and 1166 transitions. cyclomatic complexity: 747 Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 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 22:45:33,272 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 467 states and 1166 transitions. cyclomatic complexity: 747. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 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 2473 states and 6273 transitions. Complement of second has 7 states. [2025-02-17 22:45:33,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2025-02-17 22:45:33,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 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 22:45:33,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 66 transitions. [2025-02-17 22:45:33,273 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 66 transitions. Stem has 4 letters. Loop has 5 letters. [2025-02-17 22:45:33,274 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:45:33,274 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 66 transitions. Stem has 9 letters. Loop has 5 letters. [2025-02-17 22:45:33,274 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:45:33,274 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 66 transitions. Stem has 4 letters. Loop has 10 letters. [2025-02-17 22:45:33,274 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:45:33,274 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 2473 states and 6273 transitions. [2025-02-17 22:45:33,289 INFO L131 ngComponentsAnalysis]: Automaton has 34 accepting balls. 176 [2025-02-17 22:45:33,300 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 2473 states to 1955 states and 4929 transitions. [2025-02-17 22:45:33,300 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 477 [2025-02-17 22:45:33,301 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 559 [2025-02-17 22:45:33,301 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1955 states and 4929 transitions. [2025-02-17 22:45:33,302 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-17 22:45:33,302 INFO L218 hiAutomatonCegarLoop]: Abstraction has 1955 states and 4929 transitions. [2025-02-17 22:45:33,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1955 states and 4929 transitions. [2025-02-17 22:45:33,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1955 to 1198. [2025-02-17 22:45:33,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1198 states, 1198 states have (on average 2.7362270450751254) internal successors, (3278), 1197 states have internal predecessors, (3278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:45:33,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1198 states to 1198 states and 3278 transitions. [2025-02-17 22:45:33,327 INFO L240 hiAutomatonCegarLoop]: Abstraction has 1198 states and 3278 transitions. [2025-02-17 22:45:33,327 INFO L432 stractBuchiCegarLoop]: Abstraction has 1198 states and 3278 transitions. [2025-02-17 22:45:33,327 INFO L338 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2025-02-17 22:45:33,327 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 1198 states and 3278 transitions. [2025-02-17 22:45:33,332 INFO L131 ngComponentsAnalysis]: Automaton has 25 accepting balls. 134 [2025-02-17 22:45:33,332 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-17 22:45:33,332 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-17 22:45:33,333 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2025-02-17 22:45:33,333 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2025-02-17 22:45:33,333 INFO L752 eck$LassoCheckResult]: Stem: "[88] $Ultimate##0-->L22: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" "[91] L13-->$Ultimate##0: Formula: (and (= 2 v_thread2Thread1of1ForFork1_thidvar1_2) (= 2 v_thread2Thread1of1ForFork1_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_2, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_thidvar0, thread2Thread1of1ForFork1_thidvar1]" "[75] $Ultimate##0-->L44-1: Formula: (< 0 v_d_4) InVars {d=v_d_4} OutVars{d=v_d_4} AuxVars[] AssignedVars[]" "[77] L44-1-->L39: Formula: (< 0 v_f_1) InVars {f=v_f_1} OutVars{f=v_f_1} AuxVars[] AssignedVars[]" [2025-02-17 22:45:33,333 INFO L754 eck$LassoCheckResult]: Loop: "[79] L39-->L40: Formula: (= v_x1_2 (+ v_x1_3 v_d_3)) InVars {x1=v_x1_3, d=v_d_3} OutVars{x1=v_x1_2, d=v_d_3} AuxVars[] AssignedVars[x1]" "[81] L40-->L40-2: Formula: (< v_z_2 v_x1_5) InVars {x1=v_x1_5, z=v_z_2} OutVars{x1=v_x1_5, z=v_z_2} AuxVars[] AssignedVars[]" "[83] L40-2-->L46: Formula: (<= v_y_2 v_x1_6) InVars {y=v_y_2, x1=v_x1_6} OutVars{y=v_y_2, x1=v_x1_6} AuxVars[] AssignedVars[]" "[85] L46-->L44-1: Formula: (= v_f_4 0) InVars {} OutVars{f=v_f_4} AuxVars[] AssignedVars[f]" "[77] L44-1-->L39: Formula: (< 0 v_f_1) InVars {f=v_f_1} OutVars{f=v_f_1} AuxVars[] AssignedVars[]" [2025-02-17 22:45:33,333 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:33,333 INFO L85 PathProgramCache]: Analyzing trace with hash 3634982, now seen corresponding path program 1 times [2025-02-17 22:45:33,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:45:33,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749863972] [2025-02-17 22:45:33,333 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:45:33,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:45:33,335 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-17 22:45:33,336 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-17 22:45:33,336 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:33,336 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:33,336 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:45:33,336 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-17 22:45:33,337 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-17 22:45:33,337 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:33,337 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:33,338 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:45:33,338 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:33,338 INFO L85 PathProgramCache]: Analyzing trace with hash 104082856, now seen corresponding path program 3 times [2025-02-17 22:45:33,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:45:33,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006179779] [2025-02-17 22:45:33,338 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-17 22:45:33,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:45:33,339 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 5 statements into 1 equivalence classes. [2025-02-17 22:45:33,341 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-17 22:45:33,341 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-02-17 22:45:33,341 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:45:33,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-17 22:45:33,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-17 22:45:33,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006179779] [2025-02-17 22:45:33,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1006179779] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-17 22:45:33,362 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-17 22:45:33,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-17 22:45:33,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104005887] [2025-02-17 22:45:33,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-17 22:45:33,364 INFO L769 eck$LassoCheckResult]: loop already infeasible [2025-02-17 22:45:33,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-17 22:45:33,365 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-17 22:45:33,365 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-17 22:45:33,366 INFO L87 Difference]: Start difference. First operand 1198 states and 3278 transitions. cyclomatic complexity: 2192 Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:45:33,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-17 22:45:33,392 INFO L93 Difference]: Finished difference Result 1344 states and 3342 transitions. [2025-02-17 22:45:33,392 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1344 states and 3342 transitions. [2025-02-17 22:45:33,400 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 32 [2025-02-17 22:45:33,401 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1344 states to 282 states and 638 transitions. [2025-02-17 22:45:33,401 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 107 [2025-02-17 22:45:33,402 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 107 [2025-02-17 22:45:33,402 INFO L73 IsDeterministic]: Start isDeterministic. Operand 282 states and 638 transitions. [2025-02-17 22:45:33,402 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-17 22:45:33,402 INFO L218 hiAutomatonCegarLoop]: Abstraction has 282 states and 638 transitions. [2025-02-17 22:45:33,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states and 638 transitions. [2025-02-17 22:45:33,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 160. [2025-02-17 22:45:33,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 160 states have (on average 2.3) internal successors, (368), 159 states have internal predecessors, (368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:45:33,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 368 transitions. [2025-02-17 22:45:33,405 INFO L240 hiAutomatonCegarLoop]: Abstraction has 160 states and 368 transitions. [2025-02-17 22:45:33,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-17 22:45:33,406 INFO L432 stractBuchiCegarLoop]: Abstraction has 160 states and 368 transitions. [2025-02-17 22:45:33,406 INFO L338 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2025-02-17 22:45:33,406 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 160 states and 368 transitions. [2025-02-17 22:45:33,406 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 32 [2025-02-17 22:45:33,406 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-17 22:45:33,406 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-17 22:45:33,407 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2025-02-17 22:45:33,407 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2025-02-17 22:45:33,407 INFO L752 eck$LassoCheckResult]: Stem: "[88] $Ultimate##0-->L22: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" "[68] L22-->L24: Formula: (< v_x2_1 v_w_1) InVars {x2=v_x2_1, w=v_w_1} OutVars{x2=v_x2_1, w=v_w_1} AuxVars[] AssignedVars[]" "[70] L24-->L26: Formula: (< 0 v_g_1) InVars {g=v_g_1} OutVars{g=v_g_1} AuxVars[] AssignedVars[]" "[91] L13-->$Ultimate##0: Formula: (and (= 2 v_thread2Thread1of1ForFork1_thidvar1_2) (= 2 v_thread2Thread1of1ForFork1_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_2, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_thidvar0, thread2Thread1of1ForFork1_thidvar1]" "[75] $Ultimate##0-->L44-1: Formula: (< 0 v_d_4) InVars {d=v_d_4} OutVars{d=v_d_4} AuxVars[] AssignedVars[]" "[72] L26-->L27: Formula: (= (+ v_d_2 v_d_1) 0) InVars {d=v_d_2} OutVars{d=v_d_1} AuxVars[] AssignedVars[d]" [2025-02-17 22:45:33,407 INFO L754 eck$LassoCheckResult]: Loop: "[77] L44-1-->L39: Formula: (< 0 v_f_1) InVars {f=v_f_1} OutVars{f=v_f_1} AuxVars[] AssignedVars[]" "[79] L39-->L40: Formula: (= v_x1_2 (+ v_x1_3 v_d_3)) InVars {x1=v_x1_3, d=v_d_3} OutVars{x1=v_x1_2, d=v_d_3} AuxVars[] AssignedVars[x1]" "[81] L40-->L40-2: Formula: (< v_z_2 v_x1_5) InVars {x1=v_x1_5, z=v_z_2} OutVars{x1=v_x1_5, z=v_z_2} AuxVars[] AssignedVars[]" "[84] L40-2-->L44-1: Formula: (< v_x1_1 v_y_1) InVars {y=v_y_1, x1=v_x1_1} OutVars{y=v_y_1, x1=v_x1_1} AuxVars[] AssignedVars[]" [2025-02-17 22:45:33,407 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:33,407 INFO L85 PathProgramCache]: Analyzing trace with hash -823123681, now seen corresponding path program 1 times [2025-02-17 22:45:33,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:45:33,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741857584] [2025-02-17 22:45:33,407 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:45:33,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:45:33,409 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-17 22:45:33,410 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-17 22:45:33,410 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:33,410 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:33,410 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:45:33,411 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-17 22:45:33,412 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-17 22:45:33,412 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:33,412 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:33,412 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:45:33,413 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:33,413 INFO L85 PathProgramCache]: Analyzing trace with hash 3295942, now seen corresponding path program 2 times [2025-02-17 22:45:33,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:45:33,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904562768] [2025-02-17 22:45:33,413 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-17 22:45:33,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:45:33,414 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 4 statements into 1 equivalence classes. [2025-02-17 22:45:33,415 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-17 22:45:33,415 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-17 22:45:33,415 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:33,415 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:45:33,415 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-17 22:45:33,416 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-17 22:45:33,416 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:33,416 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:33,416 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:45:33,417 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:33,417 INFO L85 PathProgramCache]: Analyzing trace with hash -1445942044, now seen corresponding path program 1 times [2025-02-17 22:45:33,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:45:33,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853166168] [2025-02-17 22:45:33,417 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:45:33,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:45:33,418 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-02-17 22:45:33,420 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-02-17 22:45:33,420 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:33,420 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:33,420 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:45:33,420 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-02-17 22:45:33,422 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-02-17 22:45:33,422 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:33,422 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:33,422 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:45:33,473 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:45:33,473 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:45:33,473 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:45:33,473 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:45:33,473 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-17 22:45:33,473 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:33,473 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:45:33,473 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:45:33,473 INFO L132 ssoRankerPreferences]: Filename of dumped script: glswitch.c.bpl_petrified1_Iteration6_Lasso [2025-02-17 22:45:33,473 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:45:33,473 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:45:33,474 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:33,479 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:33,481 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:33,488 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:33,490 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:33,491 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:33,493 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:33,536 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:45:33,536 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-17 22:45:33,536 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:33,536 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:33,538 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:45:33,545 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2025-02-17 22:45:33,549 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:45:33,549 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:45:33,556 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2025-02-17 22:45:33,566 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-02-17 22:45:33,567 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {g=1} Honda state: {g=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-02-17 22:45:33,574 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2025-02-17 22:45:33,575 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:33,575 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:33,576 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:45:33,577 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2025-02-17 22:45:33,578 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:45:33,578 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:45:33,588 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-02-17 22:45:33,588 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {thread1Thread1of1ForFork0_thidvar0=0} Honda state: {thread1Thread1of1ForFork0_thidvar0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-02-17 22:45:33,593 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2025-02-17 22:45:33,594 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:33,594 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:33,595 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:45:33,596 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2025-02-17 22:45:33,597 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:45:33,597 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:45:33,613 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0 [2025-02-17 22:45:33,613 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:33,614 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:33,615 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:45:33,617 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2025-02-17 22:45:33,618 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-17 22:45:33,618 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:45:33,809 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-17 22:45:33,817 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2025-02-17 22:45:33,817 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:45:33,817 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:45:33,817 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:45:33,817 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:45:33,817 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-17 22:45:33,817 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:33,817 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:45:33,817 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:45:33,817 INFO L132 ssoRankerPreferences]: Filename of dumped script: glswitch.c.bpl_petrified1_Iteration6_Lasso [2025-02-17 22:45:33,817 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:45:33,817 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:45:33,818 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:33,820 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:33,830 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:33,832 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:33,835 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:33,837 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:33,839 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:33,882 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:45:33,883 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-17 22:45:33,883 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:33,883 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:33,884 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:45:33,886 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2025-02-17 22:45:33,887 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-02-17 22:45:33,896 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:45:33,896 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:45:33,896 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:45:33,896 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:45:33,897 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-02-17 22:45:33,898 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-02-17 22:45:33,900 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-17 22:45:33,905 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2025-02-17 22:45:33,905 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:33,905 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:33,907 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:45:33,908 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2025-02-17 22:45:33,909 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-02-17 22:45:33,919 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:45:33,919 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:45:33,919 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:45:33,919 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:45:33,921 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-02-17 22:45:33,921 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-02-17 22:45:33,926 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-17 22:45:33,933 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2025-02-17 22:45:33,933 INFO L444 ModelExtractionUtils]: 7 out of 16 variables were initially zero. Simplification set additionally 3 variables to zero. [2025-02-17 22:45:33,933 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:33,933 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:33,935 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:45:33,936 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2025-02-17 22:45:33,940 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-17 22:45:33,951 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2025-02-17 22:45:33,951 INFO L474 LassoAnalysis]: Proved termination. [2025-02-17 22:45:33,951 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(x1, z) = 1*x1 - 1*z Supporting invariants [-1*d - 1 >= 0] [2025-02-17 22:45:33,956 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2025-02-17 22:45:33,958 INFO L156 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2025-02-17 22:45:33,975 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:33,978 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-17 22:45:33,979 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-17 22:45:33,979 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:33,979 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:45:33,979 INFO L256 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-17 22:45:33,979 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:45:33,995 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-17 22:45:33,998 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-17 22:45:33,998 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:33,998 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:45:33,999 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-17 22:45:33,999 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:45:34,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-17 22:45:34,035 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 3 loop predicates [2025-02-17 22:45:34,035 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 160 states and 368 transitions. cyclomatic complexity: 229 Second operand has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 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 22:45:34,089 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 160 states and 368 transitions. cyclomatic complexity: 229. Second operand has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 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 436 states and 1010 transitions. Complement of second has 9 states. [2025-02-17 22:45:34,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 2 stem states 2 non-accepting loop states 2 accepting loop states [2025-02-17 22:45:34,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 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 22:45:34,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 50 transitions. [2025-02-17 22:45:34,089 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 50 transitions. Stem has 6 letters. Loop has 4 letters. [2025-02-17 22:45:34,089 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:45:34,090 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 50 transitions. Stem has 10 letters. Loop has 4 letters. [2025-02-17 22:45:34,090 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:45:34,090 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 50 transitions. Stem has 6 letters. Loop has 8 letters. [2025-02-17 22:45:34,090 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:45:34,090 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 436 states and 1010 transitions. [2025-02-17 22:45:34,092 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 32 [2025-02-17 22:45:34,093 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 436 states to 320 states and 730 transitions. [2025-02-17 22:45:34,093 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 84 [2025-02-17 22:45:34,094 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 90 [2025-02-17 22:45:34,094 INFO L73 IsDeterministic]: Start isDeterministic. Operand 320 states and 730 transitions. [2025-02-17 22:45:34,094 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-17 22:45:34,094 INFO L218 hiAutomatonCegarLoop]: Abstraction has 320 states and 730 transitions. [2025-02-17 22:45:34,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states and 730 transitions. [2025-02-17 22:45:34,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 305. [2025-02-17 22:45:34,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 305 states, 305 states have (on average 2.2983606557377048) internal successors, (701), 304 states have internal predecessors, (701), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:45:34,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 305 states and 701 transitions. [2025-02-17 22:45:34,099 INFO L240 hiAutomatonCegarLoop]: Abstraction has 305 states and 701 transitions. [2025-02-17 22:45:34,099 INFO L432 stractBuchiCegarLoop]: Abstraction has 305 states and 701 transitions. [2025-02-17 22:45:34,099 INFO L338 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2025-02-17 22:45:34,099 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 305 states and 701 transitions. [2025-02-17 22:45:34,100 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 32 [2025-02-17 22:45:34,100 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-17 22:45:34,100 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-17 22:45:34,100 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1, 1, 1] [2025-02-17 22:45:34,100 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2025-02-17 22:45:34,100 INFO L752 eck$LassoCheckResult]: Stem: "[88] $Ultimate##0-->L22: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" "[68] L22-->L24: Formula: (< v_x2_1 v_w_1) InVars {x2=v_x2_1, w=v_w_1} OutVars{x2=v_x2_1, w=v_w_1} AuxVars[] AssignedVars[]" "[70] L24-->L26: Formula: (< 0 v_g_1) InVars {g=v_g_1} OutVars{g=v_g_1} AuxVars[] AssignedVars[]" "[72] L26-->L27: Formula: (= (+ v_d_2 v_d_1) 0) InVars {d=v_d_2} OutVars{d=v_d_1} AuxVars[] AssignedVars[d]" "[74] L27-->L24-2: Formula: (= v_g_2 0) InVars {} OutVars{g=v_g_2} AuxVars[] AssignedVars[g]" "[73] L24-2-->L22: Formula: (= v_x2_2 (+ v_x2_3 1)) InVars {x2=v_x2_3} OutVars{x2=v_x2_2} AuxVars[] AssignedVars[x2]" "[68] L22-->L24: Formula: (< v_x2_1 v_w_1) InVars {x2=v_x2_1, w=v_w_1} OutVars{x2=v_x2_1, w=v_w_1} AuxVars[] AssignedVars[]" "[70] L24-->L26: Formula: (< 0 v_g_1) InVars {g=v_g_1} OutVars{g=v_g_1} AuxVars[] AssignedVars[]" "[91] L13-->$Ultimate##0: Formula: (and (= 2 v_thread2Thread1of1ForFork1_thidvar1_2) (= 2 v_thread2Thread1of1ForFork1_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_2, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_thidvar0, thread2Thread1of1ForFork1_thidvar1]" "[75] $Ultimate##0-->L44-1: Formula: (< 0 v_d_4) InVars {d=v_d_4} OutVars{d=v_d_4} AuxVars[] AssignedVars[]" "[72] L26-->L27: Formula: (= (+ v_d_2 v_d_1) 0) InVars {d=v_d_2} OutVars{d=v_d_1} AuxVars[] AssignedVars[d]" [2025-02-17 22:45:34,100 INFO L754 eck$LassoCheckResult]: Loop: "[77] L44-1-->L39: Formula: (< 0 v_f_1) InVars {f=v_f_1} OutVars{f=v_f_1} AuxVars[] AssignedVars[]" "[79] L39-->L40: Formula: (= v_x1_2 (+ v_x1_3 v_d_3)) InVars {x1=v_x1_3, d=v_d_3} OutVars{x1=v_x1_2, d=v_d_3} AuxVars[] AssignedVars[x1]" "[81] L40-->L40-2: Formula: (< v_z_2 v_x1_5) InVars {x1=v_x1_5, z=v_z_2} OutVars{x1=v_x1_5, z=v_z_2} AuxVars[] AssignedVars[]" "[84] L40-2-->L44-1: Formula: (< v_x1_1 v_y_1) InVars {y=v_y_1, x1=v_x1_1} OutVars{y=v_y_1, x1=v_x1_1} AuxVars[] AssignedVars[]" [2025-02-17 22:45:34,101 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:34,101 INFO L85 PathProgramCache]: Analyzing trace with hash -1495633336, now seen corresponding path program 1 times [2025-02-17 22:45:34,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:45:34,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413613582] [2025-02-17 22:45:34,101 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:45:34,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:45:34,103 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-02-17 22:45:34,104 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-02-17 22:45:34,104 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:34,104 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:45:34,116 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-17 22:45:34,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-17 22:45:34,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413613582] [2025-02-17 22:45:34,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1413613582] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-17 22:45:34,116 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-17 22:45:34,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-17 22:45:34,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802334876] [2025-02-17 22:45:34,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-17 22:45:34,116 INFO L757 eck$LassoCheckResult]: stem already infeasible [2025-02-17 22:45:34,116 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:34,116 INFO L85 PathProgramCache]: Analyzing trace with hash 3295942, now seen corresponding path program 3 times [2025-02-17 22:45:34,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:45:34,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178962145] [2025-02-17 22:45:34,116 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-17 22:45:34,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:45:34,117 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 4 statements into 1 equivalence classes. [2025-02-17 22:45:34,118 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-17 22:45:34,118 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-02-17 22:45:34,118 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:34,118 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:45:34,119 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-17 22:45:34,119 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-17 22:45:34,119 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:34,119 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:34,120 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:45:34,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-17 22:45:34,138 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-17 22:45:34,138 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-17 22:45:34,138 INFO L87 Difference]: Start difference. First operand 305 states and 701 transitions. cyclomatic complexity: 437 Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:45:34,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-17 22:45:34,143 INFO L93 Difference]: Finished difference Result 223 states and 484 transitions. [2025-02-17 22:45:34,143 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 223 states and 484 transitions. [2025-02-17 22:45:34,145 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-02-17 22:45:34,145 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 223 states to 0 states and 0 transitions. [2025-02-17 22:45:34,145 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2025-02-17 22:45:34,145 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2025-02-17 22:45:34,145 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2025-02-17 22:45:34,145 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-02-17 22:45:34,145 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-02-17 22:45:34,145 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-02-17 22:45:34,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-17 22:45:34,145 INFO L432 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-02-17 22:45:34,145 INFO L338 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2025-02-17 22:45:34,145 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2025-02-17 22:45:34,145 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-02-17 22:45:34,145 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2025-02-17 22:45:34,150 INFO L201 PluginConnector]: Adding new model glswitch.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 17.02 10:45:34 BoogieIcfgContainer [2025-02-17 22:45:34,150 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2025-02-17 22:45:34,151 INFO L158 Benchmark]: Toolchain (without parser) took 3630.55ms. Allocated memory was 155.2MB in the beginning and 142.6MB in the end (delta: -12.6MB). Free memory was 83.9MB in the beginning and 71.8MB in the end (delta: 12.1MB). There was no memory consumed. Max. memory is 8.0GB. [2025-02-17 22:45:34,151 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.21ms. Allocated memory is still 155.2MB. Free memory is still 84.8MB. There was no memory consumed. Max. memory is 8.0GB. [2025-02-17 22:45:34,151 INFO L158 Benchmark]: Boogie Procedure Inliner took 15.90ms. Allocated memory is still 155.2MB. Free memory was 83.9MB in the beginning and 82.6MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 8.0GB. [2025-02-17 22:45:34,151 INFO L158 Benchmark]: Boogie Preprocessor took 11.98ms. Allocated memory is still 155.2MB. Free memory was 82.6MB in the beginning and 82.0MB in the end (delta: 607.4kB). There was no memory consumed. Max. memory is 8.0GB. [2025-02-17 22:45:34,151 INFO L158 Benchmark]: RCFGBuilder took 170.50ms. Allocated memory is still 155.2MB. Free memory was 82.0MB in the beginning and 73.0MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2025-02-17 22:45:34,151 INFO L158 Benchmark]: BuchiAutomizer took 3428.96ms. Allocated memory was 155.2MB in the beginning and 142.6MB in the end (delta: -12.6MB). Free memory was 73.0MB in the beginning and 71.8MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 8.0GB. [2025-02-17 22:45:34,152 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.21ms. Allocated memory is still 155.2MB. Free memory is still 84.8MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 15.90ms. Allocated memory is still 155.2MB. Free memory was 83.9MB in the beginning and 82.6MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 8.0GB. * Boogie Preprocessor took 11.98ms. Allocated memory is still 155.2MB. Free memory was 82.6MB in the beginning and 82.0MB in the end (delta: 607.4kB). There was no memory consumed. Max. memory is 8.0GB. * RCFGBuilder took 170.50ms. Allocated memory is still 155.2MB. Free memory was 82.0MB in the beginning and 73.0MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * BuchiAutomizer took 3428.96ms. Allocated memory was 155.2MB in the beginning and 142.6MB in the end (delta: -12.6MB). Free memory was 73.0MB in the beginning and 71.8MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 7 terminating modules (2 trivial, 5 deterministic, 0 nondeterministic). One deterministic module has affine ranking function w + -1 * x2 and consists of 4 locations. One deterministic module has affine ranking function -1 * x1 + y and consists of 4 locations. One deterministic module has affine ranking function f and consists of 4 locations. One deterministic module has affine ranking function f and consists of 4 locations. One deterministic module has affine ranking function -1 * z + x1 and consists of 6 locations. 2 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.3s and 8 iterations. TraceHistogramMax:2. Analysis of lassos took 2.3s. Construction of modules took 0.0s. Büchi inclusion checks took 0.5s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 6. Automata minimization 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 1092 StatesRemovedByMinimization, 6 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [5, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 216 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 213 mSDsluCounter, 365 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 173 mSDsCounter, 18 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 127 IncrementalHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 18 mSolverCounterUnsat, 192 mSDtfsCounter, 127 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT3 conc0 concLT0 SILN1 SILU0 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital26 mio100 ax100 hnf100 lsp67 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq141 hnf95 smp100 dnf100 smp100 tf106 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 21ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 7 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 5 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.8s InitialAbstractionConstructionTime: 0.0s InitialAbstraction: - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2025-02-17 22:45:34,161 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Ended with exit code 0 [2025-02-17 22:45:34,362 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request...