/root/.sdkman/candidates/java/21.0.5-tem/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/buchiAutomizer/concurrent-automaton-noLbe.epf -tc ../../../trunk/examples/toolchains/BuchiAutomizerBplInline.xml -i /storage/cav23-termute-examples/4_plus_thr/pc5v.c.bpl -------------------------------------------------------------------------------- This is Ultimate 0.3.0-wip.dk.ample-buchi-601be74-m [2025-02-17 22:47:23,978 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-17 22:47:24,030 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/settings/buchiAutomizer/concurrent-automaton-noLbe.epf [2025-02-17 22:47:24,033 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-17 22:47:24,033 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-17 22:47:24,050 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-17 22:47:24,051 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-17 22:47:24,051 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-17 22:47:24,051 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-17 22:47:24,052 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-17 22:47:24,053 INFO L153 SettingsManager]: * Use SBE=true [2025-02-17 22:47:24,053 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2025-02-17 22:47:24,053 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2025-02-17 22:47:24,054 INFO L153 SettingsManager]: * Use old map elimination=false [2025-02-17 22:47:24,054 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2025-02-17 22:47:24,054 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2025-02-17 22:47:24,054 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2025-02-17 22:47:24,054 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-17 22:47:24,054 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2025-02-17 22:47:24,054 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-17 22:47:24,054 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-17 22:47:24,054 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-17 22:47:24,054 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-17 22:47:24,055 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2025-02-17 22:47:24,055 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2025-02-17 22:47:24,055 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2025-02-17 22:47:24,055 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-17 22:47:24,055 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-17 22:47:24,055 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-17 22:47:24,055 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2025-02-17 22:47:24,055 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-17 22:47:24,055 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-02-17 22:47:24,055 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-17 22:47:24,055 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-17 22:47:24,055 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-17 22:47:24,056 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2025-02-17 22:47:24,056 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR [2025-02-17 22:47:24,439 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-17 22:47:24,453 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-17 22:47:24,457 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-17 22:47:24,458 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2025-02-17 22:47:24,458 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2025-02-17 22:47:24,459 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/cav23-termute-examples/4_plus_thr/pc5v.c.bpl [2025-02-17 22:47:24,459 INFO L110 BoogieParser]: Parsing: '/storage/cav23-termute-examples/4_plus_thr/pc5v.c.bpl' [2025-02-17 22:47:24,476 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-17 22:47:24,478 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2025-02-17 22:47:24,479 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-17 22:47:24,479 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-17 22:47:24,479 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-17 22:47:24,487 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "pc5v.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:47:24" (1/1) ... [2025-02-17 22:47:24,492 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "pc5v.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:47:24" (1/1) ... [2025-02-17 22:47:24,499 INFO L138 Inliner]: procedures = 6, calls = 5, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2025-02-17 22:47:24,500 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-17 22:47:24,501 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-17 22:47:24,501 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-17 22:47:24,501 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-17 22:47:24,506 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "pc5v.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:47:24" (1/1) ... [2025-02-17 22:47:24,506 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "pc5v.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:47:24" (1/1) ... [2025-02-17 22:47:24,507 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "pc5v.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:47:24" (1/1) ... [2025-02-17 22:47:24,507 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "pc5v.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:47:24" (1/1) ... [2025-02-17 22:47:24,508 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "pc5v.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:47:24" (1/1) ... [2025-02-17 22:47:24,509 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "pc5v.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:47:24" (1/1) ... [2025-02-17 22:47:24,511 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "pc5v.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:47:24" (1/1) ... [2025-02-17 22:47:24,511 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "pc5v.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:47:24" (1/1) ... [2025-02-17 22:47:24,512 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "pc5v.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:47:24" (1/1) ... [2025-02-17 22:47:24,512 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-17 22:47:24,513 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-02-17 22:47:24,513 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-02-17 22:47:24,513 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-02-17 22:47:24,513 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "pc5v.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:47:24" (1/1) ... [2025-02-17 22:47:24,519 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:47:24,526 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:47:24,541 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:47:24,546 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2025-02-17 22:47:24,560 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2025-02-17 22:47:24,560 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-02-17 22:47:24,560 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-02-17 22:47:24,560 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2025-02-17 22:47:24,561 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-02-17 22:47:24,561 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-02-17 22:47:24,561 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2025-02-17 22:47:24,561 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-02-17 22:47:24,561 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-02-17 22:47:24,561 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2025-02-17 22:47:24,561 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-17 22:47:24,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-17 22:47:24,561 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2025-02-17 22:47:24,561 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2025-02-17 22:47:24,561 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2025-02-17 22:47:24,561 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread5 given in one single declaration [2025-02-17 22:47:24,561 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2025-02-17 22:47:24,561 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2025-02-17 22:47:24,562 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-17 22:47:24,595 INFO L234 CfgBuilder]: Building ICFG [2025-02-17 22:47:24,597 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-17 22:47:24,693 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-17 22:47:24,693 INFO L283 CfgBuilder]: Performing block encoding [2025-02-17 22:47:24,702 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-17 22:47:24,702 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-17 22:47:24,702 INFO L201 PluginConnector]: Adding new model pc5v.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.02 10:47:24 BoogieIcfgContainer [2025-02-17 22:47:24,702 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-02-17 22:47:24,703 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2025-02-17 22:47:24,703 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2025-02-17 22:47:24,708 INFO L274 PluginConnector]: BuchiAutomizer initialized [2025-02-17 22:47:24,709 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-02-17 22:47:24,709 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "pc5v.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:47:24" (1/2) ... [2025-02-17 22:47:24,710 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4ccd6ea1 and model type pc5v.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.02 10:47:24, skipping insertion in model container [2025-02-17 22:47:24,710 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-02-17 22:47:24,710 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "pc5v.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.02 10:47:24" (2/2) ... [2025-02-17 22:47:24,711 INFO L363 chiAutomizerObserver]: Analyzing ICFG pc5v.c.bpl [2025-02-17 22:47:24,786 INFO L143 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2025-02-17 22:47:24,822 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 58 places, 52 transitions, 139 flow [2025-02-17 22:47:24,845 INFO L124 PetriNetUnfolderBase]: 5/42 cut-off events. [2025-02-17 22:47:24,847 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2025-02-17 22:47:24,852 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63 conditions, 42 events. 5/42 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 115 event pairs, 0 based on Foata normal form. 0/37 useless extension candidates. Maximal degree in co-relation 42. Up to 2 conditions per place. [2025-02-17 22:47:24,852 INFO L82 GeneralOperation]: Start removeDead. Operand has 58 places, 52 transitions, 139 flow [2025-02-17 22:47:24,858 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 53 places, 42 transitions, 114 flow [2025-02-17 22:47:24,868 INFO L306 stractBuchiCegarLoop]: Interprodecural is true [2025-02-17 22:47:24,868 INFO L307 stractBuchiCegarLoop]: Hoare is None [2025-02-17 22:47:24,868 INFO L308 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2025-02-17 22:47:24,868 INFO L309 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2025-02-17 22:47:24,868 INFO L310 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2025-02-17 22:47:24,868 INFO L311 stractBuchiCegarLoop]: Difference is false [2025-02-17 22:47:24,868 INFO L312 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2025-02-17 22:47:24,868 INFO L316 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2025-02-17 22:47:24,870 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 0 states, but on-demand construction may add more states [2025-02-17 22:47:25,810 INFO L131 ngComponentsAnalysis]: Automaton has 1221 accepting balls. 10401 [2025-02-17 22:47:25,811 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-17 22:47:25,811 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-17 22:47:25,816 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2025-02-17 22:47:25,817 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-02-17 22:47:25,817 INFO L338 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2025-02-17 22:47:25,817 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 10887 states, but on-demand construction may add more states [2025-02-17 22:47:26,063 INFO L131 ngComponentsAnalysis]: Automaton has 1221 accepting balls. 10401 [2025-02-17 22:47:26,064 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-17 22:47:26,064 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-17 22:47:26,065 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2025-02-17 22:47:26,065 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-02-17 22:47:26,070 INFO L752 eck$LassoCheckResult]: Stem: "[91] $Ultimate##0-->L15: Formula: (= v_f_7 0) InVars {f=v_f_7} OutVars{f=v_f_7} AuxVars[] AssignedVars[]" "[135] L15-->L30: Formula: (= v_thread1Thread1of1ForFork1_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork1_thidvar0=v_thread1Thread1of1ForFork1_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork1_thidvar0]" [2025-02-17 22:47:26,070 INFO L754 eck$LassoCheckResult]: Loop: "[101] L30-->L32: Formula: (< v_x1_1 v_z1_1) InVars {x1=v_x1_1, z1=v_z1_1} OutVars{x1=v_x1_1, z1=v_z1_1} AuxVars[] AssignedVars[]" "[103] L32-->L33: Formula: (= v_x1_2 (+ v_x1_3 1)) InVars {x1=v_x1_3} OutVars{x1=v_x1_2} AuxVars[] AssignedVars[x1]" "[105] L33-->L30: Formula: (= (+ v_c_2 1) v_c_1) InVars {c=v_c_2} OutVars{c=v_c_1} AuxVars[] AssignedVars[c]" [2025-02-17 22:47:26,075 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:47:26,076 INFO L85 PathProgramCache]: Analyzing trace with hash 3917, now seen corresponding path program 1 times [2025-02-17 22:47:26,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:47:26,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881349045] [2025-02-17 22:47:26,083 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:47:26,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:47:26,134 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:47:26,141 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:47:26,142 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:47:26,142 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:47:26,142 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:47:26,145 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:47:26,147 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:47:26,148 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:47:26,148 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:47:26,161 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:47:26,165 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:47:26,165 INFO L85 PathProgramCache]: Analyzing trace with hash 130150, now seen corresponding path program 1 times [2025-02-17 22:47:26,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:47:26,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246753984] [2025-02-17 22:47:26,165 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:47:26,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:47:26,172 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:47:26,176 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:47:26,177 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:47:26,177 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:47:26,177 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:47:26,180 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:47:26,181 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:47:26,181 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:47:26,181 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:47:26,185 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:47:26,187 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:47:26,187 INFO L85 PathProgramCache]: Analyzing trace with hash 116791706, now seen corresponding path program 1 times [2025-02-17 22:47:26,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:47:26,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184198502] [2025-02-17 22:47:26,187 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:47:26,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:47:26,193 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-17 22:47:26,196 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-17 22:47:26,196 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:47:26,196 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:47:26,196 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:47:26,199 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-17 22:47:26,201 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-17 22:47:26,201 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:47:26,201 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:47:26,206 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:47:26,283 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:47:26,284 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:47:26,284 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:47:26,284 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:47:26,284 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-17 22:47:26,284 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:47:26,284 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:47:26,284 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:47:26,285 INFO L132 ssoRankerPreferences]: Filename of dumped script: pc5v.c.bpl_petrified1_Iteration1_Loop [2025-02-17 22:47:26,285 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:47:26,285 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:47:26,297 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:47:26,313 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:47:26,351 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:47:26,351 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-17 22:47:26,353 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:47:26,353 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:47:26,356 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:47:26,357 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2025-02-17 22:47:26,359 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:47:26,359 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:47:26,378 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2025-02-17 22:47:26,378 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:47:26,378 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:47:26,381 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:47:26,391 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2025-02-17 22:47:26,392 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-17 22:47:26,392 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:47:26,460 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-17 22:47:26,464 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2025-02-17 22:47:26,465 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:47:26,465 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:47:26,465 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:47:26,465 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:47:26,465 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-17 22:47:26,465 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:47:26,465 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:47:26,465 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:47:26,465 INFO L132 ssoRankerPreferences]: Filename of dumped script: pc5v.c.bpl_petrified1_Iteration1_Loop [2025-02-17 22:47:26,465 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:47:26,465 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:47:26,466 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:47:26,473 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:47:26,505 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:47:26,508 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-17 22:47:26,508 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:47:26,509 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:47:26,511 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:47:26,513 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2025-02-17 22:47:26,514 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-02-17 22:47:26,530 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:47:26,530 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-17 22:47:26,530 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:47:26,531 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:47:26,531 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:47:26,573 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-17 22:47:26,573 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-17 22:47:26,580 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-17 22:47:26,586 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2025-02-17 22:47:26,586 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-02-17 22:47:26,587 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:47:26,587 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:47:26,594 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:47:26,597 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-17 22:47:26,602 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-02-17 22:47:26,602 INFO L474 LassoAnalysis]: Proved termination. [2025-02-17 22:47:26,603 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(z1, x1) = 1*z1 - 1*x1 Supporting invariants [] [2025-02-17 22:47:26,601 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2025-02-17 22:47:26,617 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2025-02-17 22:47:26,625 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-02-17 22:47:26,650 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:47:26,660 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:47:26,661 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:47:26,661 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:47:26,661 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:47:26,662 INFO L256 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-17 22:47:26,663 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:47:26,686 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:47:26,692 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:47:26,692 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:47:26,692 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:47:26,692 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-17 22:47:26,693 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:47:26,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-17 22:47:26,810 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2025-02-17 22:47:26,813 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand currently 10887 states, but on-demand construction may add more states Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:47:27,392 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand currently 10887 states, but on-demand construction may add more states. Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 26438 states and 138518 transitions. Complement of second has 6 states. [2025-02-17 22:47:27,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2025-02-17 22:47:27,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:47:27,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 101 transitions. [2025-02-17 22:47:27,407 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 101 transitions. Stem has 2 letters. Loop has 3 letters. [2025-02-17 22:47:27,408 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:47:27,409 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 101 transitions. Stem has 5 letters. Loop has 3 letters. [2025-02-17 22:47:27,409 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:47:27,409 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 101 transitions. Stem has 2 letters. Loop has 6 letters. [2025-02-17 22:47:27,410 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:47:27,410 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 26438 states and 138518 transitions. [2025-02-17 22:47:27,531 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2025-02-17 22:47:28,041 INFO L131 ngComponentsAnalysis]: Automaton has 1540 accepting balls. 10038 [2025-02-17 22:47:28,394 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 26438 states to 19487 states and 104003 transitions. [2025-02-17 22:47:28,396 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10481 [2025-02-17 22:47:28,445 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13484 [2025-02-17 22:47:28,446 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19487 states and 104003 transitions. [2025-02-17 22:47:28,446 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-17 22:47:28,447 INFO L218 hiAutomatonCegarLoop]: Abstraction has 19487 states and 104003 transitions. [2025-02-17 22:47:28,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19487 states and 104003 transitions. [2025-02-17 22:47:29,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19487 to 16485. [2025-02-17 22:47:29,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16485 states, 16485 states have (on average 5.313679102214134) internal successors, (87596), 16484 states have internal predecessors, (87596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:47:29,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16485 states to 16485 states and 87596 transitions. [2025-02-17 22:47:29,606 INFO L240 hiAutomatonCegarLoop]: Abstraction has 16485 states and 87596 transitions. [2025-02-17 22:47:29,606 INFO L432 stractBuchiCegarLoop]: Abstraction has 16485 states and 87596 transitions. [2025-02-17 22:47:29,606 INFO L338 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2025-02-17 22:47:29,606 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16485 states and 87596 transitions. [2025-02-17 22:47:29,730 INFO L131 ngComponentsAnalysis]: Automaton has 1540 accepting balls. 10038 [2025-02-17 22:47:29,730 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-17 22:47:29,730 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-17 22:47:29,731 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2025-02-17 22:47:29,731 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-02-17 22:47:29,732 INFO L752 eck$LassoCheckResult]: Stem: "[91] $Ultimate##0-->L15: Formula: (= v_f_7 0) InVars {f=v_f_7} OutVars{f=v_f_7} AuxVars[] AssignedVars[]" "[135] L15-->L30: Formula: (= v_thread1Thread1of1ForFork1_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork1_thidvar0=v_thread1Thread1of1ForFork1_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork1_thidvar0]" "[138] L15-1-->L41: Formula: (and (= 2 v_thread2Thread1of1ForFork2_thidvar1_2) (= 2 v_thread2Thread1of1ForFork2_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork2_thidvar1=v_thread2Thread1of1ForFork2_thidvar1_2, thread2Thread1of1ForFork2_thidvar0=v_thread2Thread1of1ForFork2_thidvar0_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork2_thidvar1, thread2Thread1of1ForFork2_thidvar0]" [2025-02-17 22:47:29,732 INFO L754 eck$LassoCheckResult]: Loop: "[107] L41-->L43: Formula: (< v_x2_1 v_z2_1) InVars {z2=v_z2_1, x2=v_x2_1} OutVars{z2=v_z2_1, x2=v_x2_1} AuxVars[] AssignedVars[]" "[109] L43-->L44: Formula: (= v_x2_2 (+ v_x2_3 1)) InVars {x2=v_x2_3} OutVars{x2=v_x2_2} AuxVars[] AssignedVars[x2]" "[111] L44-->L41: Formula: (= (+ v_c_4 1) v_c_3) InVars {c=v_c_4} OutVars{c=v_c_3} AuxVars[] AssignedVars[c]" [2025-02-17 22:47:29,732 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:47:29,732 INFO L85 PathProgramCache]: Analyzing trace with hash 121565, now seen corresponding path program 1 times [2025-02-17 22:47:29,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:47:29,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808379131] [2025-02-17 22:47:29,733 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:47:29,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:47:29,735 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:47:29,736 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:47:29,736 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:47:29,736 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:47:29,736 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:47:29,737 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:47:29,738 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:47:29,738 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:47:29,738 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:47:29,739 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:47:29,739 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:47:29,739 INFO L85 PathProgramCache]: Analyzing trace with hash 136108, now seen corresponding path program 1 times [2025-02-17 22:47:29,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:47:29,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091856928] [2025-02-17 22:47:29,740 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:47:29,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:47:29,741 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:47:29,743 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:47:29,743 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:47:29,743 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:47:29,743 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:47:29,743 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:47:29,744 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:47:29,744 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:47:29,744 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:47:29,745 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:47:29,746 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:47:29,746 INFO L85 PathProgramCache]: Analyzing trace with hash -673318064, now seen corresponding path program 1 times [2025-02-17 22:47:29,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:47:29,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445297671] [2025-02-17 22:47:29,746 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:47:29,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:47:29,748 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-17 22:47:29,750 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-17 22:47:29,750 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:47:29,750 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:47:29,750 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:47:29,751 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-17 22:47:29,752 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-17 22:47:29,752 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:47:29,752 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:47:29,753 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:47:29,780 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:47:29,781 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:47:29,781 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:47:29,781 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:47:29,781 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-17 22:47:29,781 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:47:29,781 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:47:29,781 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:47:29,781 INFO L132 ssoRankerPreferences]: Filename of dumped script: pc5v.c.bpl_petrified1_Iteration2_Loop [2025-02-17 22:47:29,781 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:47:29,781 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:47:29,782 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:47:29,785 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:47:29,809 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:47:29,809 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-17 22:47:29,809 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:47:29,809 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:47:29,811 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:47:29,813 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2025-02-17 22:47:29,815 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:47:29,815 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:47:29,831 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2025-02-17 22:47:29,832 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:47:29,832 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:47:29,834 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:47:29,834 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2025-02-17 22:47:29,836 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-17 22:47:29,836 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:47:29,870 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-02-17 22:47:29,870 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {c=0} Honda state: {c=0} Generalized eigenvectors: [{c=-3}, {c=-3}, {c=7}] Lambdas: [0, 1, 1] Nus: [1, 0] [2025-02-17 22:47:29,876 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2025-02-17 22:47:29,877 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:47:29,877 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:47:29,878 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:47:29,879 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2025-02-17 22:47:29,880 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:47:29,880 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:47:29,897 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2025-02-17 22:47:29,897 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:47:29,897 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:47:29,899 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:47:29,900 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2025-02-17 22:47:29,902 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-17 22:47:29,902 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:47:29,970 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-17 22:47:29,974 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2025-02-17 22:47:29,974 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:47:29,974 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:47:29,975 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:47:29,975 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:47:29,975 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-17 22:47:29,975 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:47:29,975 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:47:29,975 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:47:29,975 INFO L132 ssoRankerPreferences]: Filename of dumped script: pc5v.c.bpl_petrified1_Iteration2_Loop [2025-02-17 22:47:29,975 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:47:29,975 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:47:29,976 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:47:29,979 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:47:30,006 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:47:30,007 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-17 22:47:30,007 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:47:30,007 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:47:30,010 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:47:30,012 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2025-02-17 22:47:30,012 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-02-17 22:47:30,022 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:47:30,023 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-17 22:47:30,023 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:47:30,023 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:47:30,023 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:47:30,024 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-17 22:47:30,024 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-17 22:47:30,027 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-17 22:47:30,034 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 22:47:30,034 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:47:30,034 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:47:30,036 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:47:30,037 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2025-02-17 22:47:30,038 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-02-17 22:47:30,048 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:47:30,049 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-17 22:47:30,049 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:47:30,049 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:47:30,049 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:47:30,050 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-17 22:47:30,051 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-17 22:47:30,053 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-17 22:47:30,056 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-02-17 22:47:30,056 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2025-02-17 22:47:30,056 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:47:30,056 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:47:30,058 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:47:30,060 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2025-02-17 22:47:30,060 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-17 22:47:30,060 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-02-17 22:47:30,061 INFO L474 LassoAnalysis]: Proved termination. [2025-02-17 22:47:30,061 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(z2, x2) = 1*z2 - 1*x2 Supporting invariants [] [2025-02-17 22:47:30,066 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 22:47:30,067 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-02-17 22:47:30,079 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:47:30,085 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:47:30,087 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:47:30,087 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:47:30,087 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:47:30,087 INFO L256 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-17 22:47:30,088 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:47:30,094 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:47:30,096 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:47:30,096 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:47:30,096 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:47:30,096 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-17 22:47:30,096 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:47:30,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-17 22:47:30,129 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2025-02-17 22:47:30,130 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16485 states and 87596 transitions. cyclomatic complexity: 72938 Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:47:30,549 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2025-02-17 22:47:30,852 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16485 states and 87596 transitions. cyclomatic complexity: 72938. Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 42320 states and 234699 transitions. Complement of second has 6 states. [2025-02-17 22:47:30,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2025-02-17 22:47:30,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:47:30,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 105 transitions. [2025-02-17 22:47:30,853 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 105 transitions. Stem has 3 letters. Loop has 3 letters. [2025-02-17 22:47:30,853 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:47:30,854 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 105 transitions. Stem has 6 letters. Loop has 3 letters. [2025-02-17 22:47:30,854 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:47:30,854 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 105 transitions. Stem has 3 letters. Loop has 6 letters. [2025-02-17 22:47:30,854 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:47:30,854 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 42320 states and 234699 transitions. [2025-02-17 22:47:31,739 INFO L131 ngComponentsAnalysis]: Automaton has 1887 accepting balls. 9237 [2025-02-17 22:47:32,290 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 42320 states to 31072 states and 174229 transitions. [2025-02-17 22:47:32,290 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11795 [2025-02-17 22:47:32,337 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15094 [2025-02-17 22:47:32,338 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31072 states and 174229 transitions. [2025-02-17 22:47:32,338 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-17 22:47:32,338 INFO L218 hiAutomatonCegarLoop]: Abstraction has 31072 states and 174229 transitions. [2025-02-17 22:47:32,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31072 states and 174229 transitions. [2025-02-17 22:47:33,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31072 to 27773. [2025-02-17 22:47:33,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27773 states, 27773 states have (on average 5.64209844093184) internal successors, (156698), 27772 states have internal predecessors, (156698), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:47:33,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27773 states to 27773 states and 156698 transitions. [2025-02-17 22:47:33,448 INFO L240 hiAutomatonCegarLoop]: Abstraction has 27773 states and 156698 transitions. [2025-02-17 22:47:33,448 INFO L432 stractBuchiCegarLoop]: Abstraction has 27773 states and 156698 transitions. [2025-02-17 22:47:33,448 INFO L338 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2025-02-17 22:47:33,448 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27773 states and 156698 transitions. [2025-02-17 22:47:33,863 INFO L131 ngComponentsAnalysis]: Automaton has 1887 accepting balls. 9237 [2025-02-17 22:47:33,863 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-17 22:47:33,863 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-17 22:47:33,864 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2025-02-17 22:47:33,864 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-02-17 22:47:33,865 INFO L752 eck$LassoCheckResult]: Stem: "[91] $Ultimate##0-->L15: Formula: (= v_f_7 0) InVars {f=v_f_7} OutVars{f=v_f_7} AuxVars[] AssignedVars[]" "[135] L15-->L30: Formula: (= v_thread1Thread1of1ForFork1_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork1_thidvar0=v_thread1Thread1of1ForFork1_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork1_thidvar0]" "[138] L15-1-->L41: Formula: (and (= 2 v_thread2Thread1of1ForFork2_thidvar1_2) (= 2 v_thread2Thread1of1ForFork2_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork2_thidvar1=v_thread2Thread1of1ForFork2_thidvar1_2, thread2Thread1of1ForFork2_thidvar0=v_thread2Thread1of1ForFork2_thidvar0_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork2_thidvar1, thread2Thread1of1ForFork2_thidvar0]" "[141] L16-->L52: Formula: (and (= v_thread3Thread1of1ForFork3_thidvar2_2 3) (= v_thread3Thread1of1ForFork3_thidvar1_2 3) (= v_thread3Thread1of1ForFork3_thidvar0_2 3)) InVars {} OutVars{thread3Thread1of1ForFork3_thidvar0=v_thread3Thread1of1ForFork3_thidvar0_2, thread3Thread1of1ForFork3_thidvar2=v_thread3Thread1of1ForFork3_thidvar2_2, thread3Thread1of1ForFork3_thidvar1=v_thread3Thread1of1ForFork3_thidvar1_2} AuxVars[] AssignedVars[thread3Thread1of1ForFork3_thidvar0, thread3Thread1of1ForFork3_thidvar2, thread3Thread1of1ForFork3_thidvar1]" [2025-02-17 22:47:33,865 INFO L754 eck$LassoCheckResult]: Loop: "[113] L52-->L54: Formula: (< v_y1_1 v_z1_3) InVars {y1=v_y1_1, z1=v_z1_3} OutVars{y1=v_y1_1, z1=v_z1_3} AuxVars[] AssignedVars[]" "[115] L54-->L55: Formula: (= v_y1_2 (+ v_y1_3 1)) InVars {y1=v_y1_3} OutVars{y1=v_y1_2} AuxVars[] AssignedVars[y1]" "[117] L55-->L52: Formula: (= v_c_5 (+ v_c_6 1)) InVars {c=v_c_6} OutVars{c=v_c_5} AuxVars[] AssignedVars[c]" [2025-02-17 22:47:33,865 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:47:33,866 INFO L85 PathProgramCache]: Analyzing trace with hash 3768656, now seen corresponding path program 1 times [2025-02-17 22:47:33,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:47:33,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093247761] [2025-02-17 22:47:33,866 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:47:33,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:47:33,868 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-17 22:47:33,870 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-17 22:47:33,870 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:47:33,870 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:47:33,870 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:47:33,871 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-17 22:47:33,872 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-17 22:47:33,872 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:47:33,872 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:47:33,873 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:47:33,873 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:47:33,873 INFO L85 PathProgramCache]: Analyzing trace with hash 142066, now seen corresponding path program 1 times [2025-02-17 22:47:33,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:47:33,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896576958] [2025-02-17 22:47:33,873 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:47:33,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:47:33,875 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:47:33,876 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:47:33,876 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:47:33,877 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:47:33,877 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:47:33,877 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:47:33,878 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:47:33,878 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:47:33,878 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:47:33,879 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:47:33,879 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:47:33,879 INFO L85 PathProgramCache]: Analyzing trace with hash 602993475, now seen corresponding path program 1 times [2025-02-17 22:47:33,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:47:33,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193181256] [2025-02-17 22:47:33,879 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:47:33,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:47:33,881 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-17 22:47:33,883 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-17 22:47:33,883 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:47:33,883 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:47:33,883 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:47:33,884 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-17 22:47:33,885 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-17 22:47:33,886 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:47:33,886 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:47:33,887 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:47:33,908 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:47:33,908 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:47:33,909 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:47:33,909 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:47:33,909 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-17 22:47:33,909 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:47:33,909 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:47:33,909 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:47:33,909 INFO L132 ssoRankerPreferences]: Filename of dumped script: pc5v.c.bpl_petrified1_Iteration3_Loop [2025-02-17 22:47:33,909 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:47:33,909 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:47:33,910 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:47:33,914 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:47:33,940 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:47:33,940 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-17 22:47:33,940 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:47:33,940 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:47:33,942 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:47:33,945 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2025-02-17 22:47:33,945 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:47:33,945 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:47:33,962 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2025-02-17 22:47:33,962 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:47:33,962 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:47:33,964 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:47:33,965 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2025-02-17 22:47:33,966 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-17 22:47:33,966 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:47:33,999 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-02-17 22:47:33,999 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {c=0} Honda state: {c=0} Generalized eigenvectors: [{c=-3}, {c=-3}, {c=7}] Lambdas: [0, 1, 1] Nus: [1, 0] [2025-02-17 22:47:34,005 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2025-02-17 22:47:34,005 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:47:34,005 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:47:34,007 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:47:34,008 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2025-02-17 22:47:34,009 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:47:34,009 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:47:34,026 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2025-02-17 22:47:34,027 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:47:34,027 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:47:34,029 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:47:34,030 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2025-02-17 22:47:34,031 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-17 22:47:34,031 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:47:34,097 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-17 22:47:34,102 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 22:47:34,102 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:47:34,102 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:47:34,102 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:47:34,102 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:47:34,102 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-17 22:47:34,102 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:47:34,102 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:47:34,102 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:47:34,102 INFO L132 ssoRankerPreferences]: Filename of dumped script: pc5v.c.bpl_petrified1_Iteration3_Loop [2025-02-17 22:47:34,103 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:47:34,103 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:47:34,103 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:47:34,106 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:47:34,127 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:47:34,128 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-17 22:47:34,128 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:47:34,128 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:47:34,130 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:47:34,131 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2025-02-17 22:47:34,132 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-02-17 22:47:34,142 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:47:34,142 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-17 22:47:34,142 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:47:34,142 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:47:34,143 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:47:34,143 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-17 22:47:34,143 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-17 22:47:34,146 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-17 22:47:34,151 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2025-02-17 22:47:34,152 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:47:34,152 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:47:34,153 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:47:34,154 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2025-02-17 22:47:34,155 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-02-17 22:47:34,165 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:47:34,165 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-17 22:47:34,165 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:47:34,165 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:47:34,165 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:47:34,166 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-17 22:47:34,166 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-17 22:47:34,168 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-17 22:47:34,170 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2025-02-17 22:47:34,170 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-02-17 22:47:34,171 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:47:34,171 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:47:34,172 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:47:34,174 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2025-02-17 22:47:34,175 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-17 22:47:34,175 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-02-17 22:47:34,175 INFO L474 LassoAnalysis]: Proved termination. [2025-02-17 22:47:34,175 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(y1, z1) = -1*y1 + 1*z1 Supporting invariants [] [2025-02-17 22:47:34,181 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2025-02-17 22:47:34,182 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-02-17 22:47:34,192 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:47:34,196 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-17 22:47:34,198 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-17 22:47:34,198 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:47:34,198 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:47:34,199 INFO L256 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-17 22:47:34,199 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:47:34,205 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:47:34,206 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:47:34,206 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:47:34,206 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:47:34,207 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-17 22:47:34,207 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:47:34,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-17 22:47:34,233 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2025-02-17 22:47:34,234 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 27773 states and 156698 transitions. cyclomatic complexity: 131730 Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:47:34,336 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2025-02-17 22:47:35,550 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 27773 states and 156698 transitions. cyclomatic complexity: 131730. 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 78343 states and 456458 transitions. Complement of second has 6 states. [2025-02-17 22:47:35,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2025-02-17 22:47:35,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:47:35,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 111 transitions. [2025-02-17 22:47:35,553 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 111 transitions. Stem has 4 letters. Loop has 3 letters. [2025-02-17 22:47:35,556 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:47:35,556 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 111 transitions. Stem has 7 letters. Loop has 3 letters. [2025-02-17 22:47:35,557 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:47:35,557 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 111 transitions. Stem has 4 letters. Loop has 6 letters. [2025-02-17 22:47:35,557 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:47:35,557 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 78343 states and 456458 transitions. [2025-02-17 22:47:37,408 INFO L131 ngComponentsAnalysis]: Automaton has 2030 accepting balls. 7644 [2025-02-17 22:47:38,167 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 78343 states to 53445 states and 313860 transitions. [2025-02-17 22:47:38,168 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14655 [2025-02-17 22:47:38,225 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17810 [2025-02-17 22:47:38,225 INFO L73 IsDeterministic]: Start isDeterministic. Operand 53445 states and 313860 transitions. [2025-02-17 22:47:38,226 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-17 22:47:38,226 INFO L218 hiAutomatonCegarLoop]: Abstraction has 53445 states and 313860 transitions. [2025-02-17 22:47:38,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53445 states and 313860 transitions. [2025-02-17 22:47:39,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53445 to 48520. [2025-02-17 22:47:39,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48520 states, 48520 states have (on average 5.9199299258037925) internal successors, (287235), 48519 states have internal predecessors, (287235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:47:40,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48520 states to 48520 states and 287235 transitions. [2025-02-17 22:47:40,072 INFO L240 hiAutomatonCegarLoop]: Abstraction has 48520 states and 287235 transitions. [2025-02-17 22:47:40,073 INFO L432 stractBuchiCegarLoop]: Abstraction has 48520 states and 287235 transitions. [2025-02-17 22:47:40,073 INFO L338 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2025-02-17 22:47:40,073 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 48520 states and 287235 transitions. [2025-02-17 22:47:40,386 INFO L131 ngComponentsAnalysis]: Automaton has 2030 accepting balls. 7644 [2025-02-17 22:47:40,387 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-17 22:47:40,387 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-17 22:47:40,387 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2025-02-17 22:47:40,388 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-02-17 22:47:40,388 INFO L752 eck$LassoCheckResult]: Stem: "[91] $Ultimate##0-->L15: Formula: (= v_f_7 0) InVars {f=v_f_7} OutVars{f=v_f_7} AuxVars[] AssignedVars[]" "[135] L15-->L30: Formula: (= v_thread1Thread1of1ForFork1_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork1_thidvar0=v_thread1Thread1of1ForFork1_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork1_thidvar0]" "[138] L15-1-->L41: Formula: (and (= 2 v_thread2Thread1of1ForFork2_thidvar1_2) (= 2 v_thread2Thread1of1ForFork2_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork2_thidvar1=v_thread2Thread1of1ForFork2_thidvar1_2, thread2Thread1of1ForFork2_thidvar0=v_thread2Thread1of1ForFork2_thidvar0_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork2_thidvar1, thread2Thread1of1ForFork2_thidvar0]" "[141] L16-->L52: Formula: (and (= v_thread3Thread1of1ForFork3_thidvar2_2 3) (= v_thread3Thread1of1ForFork3_thidvar1_2 3) (= v_thread3Thread1of1ForFork3_thidvar0_2 3)) InVars {} OutVars{thread3Thread1of1ForFork3_thidvar0=v_thread3Thread1of1ForFork3_thidvar0_2, thread3Thread1of1ForFork3_thidvar2=v_thread3Thread1of1ForFork3_thidvar2_2, thread3Thread1of1ForFork3_thidvar1=v_thread3Thread1of1ForFork3_thidvar1_2} AuxVars[] AssignedVars[thread3Thread1of1ForFork3_thidvar0, thread3Thread1of1ForFork3_thidvar2, thread3Thread1of1ForFork3_thidvar1]" "[144] L17-->L63: Formula: (and (= v_thread4Thread1of1ForFork4_thidvar2_2 4) (= v_thread4Thread1of1ForFork4_thidvar0_2 4) (= v_thread4Thread1of1ForFork4_thidvar1_2 4) (= v_thread4Thread1of1ForFork4_thidvar3_2 4)) InVars {} OutVars{thread4Thread1of1ForFork4_thidvar0=v_thread4Thread1of1ForFork4_thidvar0_2, thread4Thread1of1ForFork4_thidvar1=v_thread4Thread1of1ForFork4_thidvar1_2, thread4Thread1of1ForFork4_thidvar2=v_thread4Thread1of1ForFork4_thidvar2_2, thread4Thread1of1ForFork4_thidvar3=v_thread4Thread1of1ForFork4_thidvar3_2} AuxVars[] AssignedVars[thread4Thread1of1ForFork4_thidvar0, thread4Thread1of1ForFork4_thidvar1, thread4Thread1of1ForFork4_thidvar2, thread4Thread1of1ForFork4_thidvar3]" [2025-02-17 22:47:40,388 INFO L754 eck$LassoCheckResult]: Loop: "[119] L63-->L65: Formula: (< v_x3_1 v_z1_5) InVars {x3=v_x3_1, z1=v_z1_5} OutVars{x3=v_x3_1, z1=v_z1_5} AuxVars[] AssignedVars[]" "[121] L65-->L66: Formula: (= v_x3_2 (+ v_x3_3 1)) InVars {x3=v_x3_3} OutVars{x3=v_x3_2} AuxVars[] AssignedVars[x3]" "[123] L66-->L63: Formula: (= v_c_7 (+ v_c_8 1)) InVars {c=v_c_8} OutVars{c=v_c_7} AuxVars[] AssignedVars[c]" [2025-02-17 22:47:40,388 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:47:40,388 INFO L85 PathProgramCache]: Analyzing trace with hash 116828480, now seen corresponding path program 1 times [2025-02-17 22:47:40,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:47:40,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877338474] [2025-02-17 22:47:40,389 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:47:40,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:47:40,391 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-17 22:47:40,393 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-17 22:47:40,393 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:47:40,393 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:47:40,393 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:47:40,394 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-17 22:47:40,396 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-17 22:47:40,396 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:47:40,396 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:47:40,397 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:47:40,397 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:47:40,398 INFO L85 PathProgramCache]: Analyzing trace with hash 148024, now seen corresponding path program 1 times [2025-02-17 22:47:40,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:47:40,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780990644] [2025-02-17 22:47:40,398 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:47:40,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:47:40,399 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:47:40,400 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:47:40,400 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:47:40,400 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:47:40,400 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:47:40,401 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:47:40,402 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:47:40,402 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:47:40,402 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:47:40,403 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:47:40,403 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:47:40,403 INFO L85 PathProgramCache]: Analyzing trace with hash 1513856153, now seen corresponding path program 1 times [2025-02-17 22:47:40,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:47:40,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951461802] [2025-02-17 22:47:40,403 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:47:40,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:47:40,404 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-02-17 22:47:40,406 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-02-17 22:47:40,406 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:47:40,406 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:47:40,406 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:47:40,407 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-02-17 22:47:40,410 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-02-17 22:47:40,410 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:47:40,410 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:47:40,411 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:47:40,433 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:47:40,433 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:47:40,433 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:47:40,433 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:47:40,433 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-17 22:47:40,433 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:47:40,433 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:47:40,433 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:47:40,433 INFO L132 ssoRankerPreferences]: Filename of dumped script: pc5v.c.bpl_petrified1_Iteration4_Loop [2025-02-17 22:47:40,433 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:47:40,433 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:47:40,434 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:47:40,438 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:47:40,457 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:47:40,457 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-17 22:47:40,457 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:47:40,457 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:47:40,459 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:47:40,459 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2025-02-17 22:47:40,461 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:47:40,461 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:47:40,476 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2025-02-17 22:47:40,477 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:47:40,477 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:47:40,478 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:47:40,480 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2025-02-17 22:47:40,481 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-17 22:47:40,481 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:47:40,540 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-17 22:47:40,543 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 22:47:40,544 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:47:40,544 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:47:40,544 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:47:40,544 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:47:40,544 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-17 22:47:40,544 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:47:40,544 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:47:40,544 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:47:40,544 INFO L132 ssoRankerPreferences]: Filename of dumped script: pc5v.c.bpl_petrified1_Iteration4_Loop [2025-02-17 22:47:40,544 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:47:40,544 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:47:40,545 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:47:40,673 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:47:40,692 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:47:40,692 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-17 22:47:40,692 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:47:40,692 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:47:40,694 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 22:47:40,696 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 22:47:40,697 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-02-17 22:47:40,706 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:47:40,706 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-17 22:47:40,706 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:47:40,706 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:47:40,707 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:47:40,707 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-17 22:47:40,707 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-17 22:47:40,709 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-17 22:47:40,711 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-02-17 22:47:40,711 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-02-17 22:47:40,711 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:47:40,711 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:47:40,714 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 22:47:40,715 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 22:47:40,715 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-17 22:47:40,715 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-02-17 22:47:40,715 INFO L474 LassoAnalysis]: Proved termination. [2025-02-17 22:47:40,715 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(x3, z1) = -1*x3 + 1*z1 Supporting invariants [] [2025-02-17 22:47:40,720 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2025-02-17 22:47:40,720 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-02-17 22:47:40,730 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:47:40,735 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-17 22:47:40,737 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-17 22:47:40,737 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:47:40,738 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:47:40,738 INFO L256 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-17 22:47:40,738 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:47:40,747 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:47:40,748 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:47:40,748 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:47:40,748 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:47:40,748 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-17 22:47:40,748 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:47:40,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-17 22:47:40,774 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2025-02-17 22:47:40,774 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 48520 states and 287235 transitions. cyclomatic complexity: 242904 Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:47:41,259 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2025-02-17 22:47:42,636 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 48520 states and 287235 transitions. cyclomatic complexity: 242904. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 136956 states and 829202 transitions. Complement of second has 6 states. [2025-02-17 22:47:42,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2025-02-17 22:47:42,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:47:42,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 117 transitions. [2025-02-17 22:47:42,637 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 117 transitions. Stem has 5 letters. Loop has 3 letters. [2025-02-17 22:47:42,637 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:47:42,637 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 117 transitions. Stem has 8 letters. Loop has 3 letters. [2025-02-17 22:47:42,637 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:47:42,637 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 117 transitions. Stem has 5 letters. Loop has 6 letters. [2025-02-17 22:47:42,637 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:47:42,637 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 136956 states and 829202 transitions. [2025-02-17 22:47:45,460 INFO L131 ngComponentsAnalysis]: Automaton has 1555 accepting balls. 4665 [2025-02-17 22:47:46,604 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 136956 states to 83383 states and 508156 transitions. [2025-02-17 22:47:46,604 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 18003 [2025-02-17 22:47:46,665 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20938 [2025-02-17 22:47:46,665 INFO L73 IsDeterministic]: Start isDeterministic. Operand 83383 states and 508156 transitions. [2025-02-17 22:47:46,665 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-17 22:47:46,665 INFO L218 hiAutomatonCegarLoop]: Abstraction has 83383 states and 508156 transitions. [2025-02-17 22:47:46,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83383 states and 508156 transitions. [2025-02-17 22:47:48,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83383 to 76608. [2025-02-17 22:47:48,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76608 states, 76608 states have (on average 6.151002506265664) internal successors, (471216), 76607 states have internal predecessors, (471216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:47:49,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76608 states to 76608 states and 471216 transitions. [2025-02-17 22:47:49,701 INFO L240 hiAutomatonCegarLoop]: Abstraction has 76608 states and 471216 transitions. [2025-02-17 22:47:49,701 INFO L432 stractBuchiCegarLoop]: Abstraction has 76608 states and 471216 transitions. [2025-02-17 22:47:49,701 INFO L338 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2025-02-17 22:47:49,701 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 76608 states and 471216 transitions. [2025-02-17 22:47:50,446 INFO L131 ngComponentsAnalysis]: Automaton has 1555 accepting balls. 4665 [2025-02-17 22:47:50,446 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-17 22:47:50,446 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-17 22:47:50,447 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2025-02-17 22:47:50,447 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-02-17 22:47:50,448 INFO L752 eck$LassoCheckResult]: Stem: "[91] $Ultimate##0-->L15: Formula: (= v_f_7 0) InVars {f=v_f_7} OutVars{f=v_f_7} AuxVars[] AssignedVars[]" "[135] L15-->L30: Formula: (= v_thread1Thread1of1ForFork1_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork1_thidvar0=v_thread1Thread1of1ForFork1_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork1_thidvar0]" "[138] L15-1-->L41: Formula: (and (= 2 v_thread2Thread1of1ForFork2_thidvar1_2) (= 2 v_thread2Thread1of1ForFork2_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork2_thidvar1=v_thread2Thread1of1ForFork2_thidvar1_2, thread2Thread1of1ForFork2_thidvar0=v_thread2Thread1of1ForFork2_thidvar0_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork2_thidvar1, thread2Thread1of1ForFork2_thidvar0]" "[141] L16-->L52: Formula: (and (= v_thread3Thread1of1ForFork3_thidvar2_2 3) (= v_thread3Thread1of1ForFork3_thidvar1_2 3) (= v_thread3Thread1of1ForFork3_thidvar0_2 3)) InVars {} OutVars{thread3Thread1of1ForFork3_thidvar0=v_thread3Thread1of1ForFork3_thidvar0_2, thread3Thread1of1ForFork3_thidvar2=v_thread3Thread1of1ForFork3_thidvar2_2, thread3Thread1of1ForFork3_thidvar1=v_thread3Thread1of1ForFork3_thidvar1_2} AuxVars[] AssignedVars[thread3Thread1of1ForFork3_thidvar0, thread3Thread1of1ForFork3_thidvar2, thread3Thread1of1ForFork3_thidvar1]" "[144] L17-->L63: Formula: (and (= v_thread4Thread1of1ForFork4_thidvar2_2 4) (= v_thread4Thread1of1ForFork4_thidvar0_2 4) (= v_thread4Thread1of1ForFork4_thidvar1_2 4) (= v_thread4Thread1of1ForFork4_thidvar3_2 4)) InVars {} OutVars{thread4Thread1of1ForFork4_thidvar0=v_thread4Thread1of1ForFork4_thidvar0_2, thread4Thread1of1ForFork4_thidvar1=v_thread4Thread1of1ForFork4_thidvar1_2, thread4Thread1of1ForFork4_thidvar2=v_thread4Thread1of1ForFork4_thidvar2_2, thread4Thread1of1ForFork4_thidvar3=v_thread4Thread1of1ForFork4_thidvar3_2} AuxVars[] AssignedVars[thread4Thread1of1ForFork4_thidvar0, thread4Thread1of1ForFork4_thidvar1, thread4Thread1of1ForFork4_thidvar2, thread4Thread1of1ForFork4_thidvar3]" "[132] L18-->$Ultimate##0: Formula: (and (= 5 v_thread5Thread1of1ForFork0_thidvar4_2) (= 5 v_thread5Thread1of1ForFork0_thidvar3_2) (= 5 v_thread5Thread1of1ForFork0_thidvar2_2) (= 5 v_thread5Thread1of1ForFork0_thidvar1_2) (= 5 v_thread5Thread1of1ForFork0_thidvar0_2)) InVars {} OutVars{thread5Thread1of1ForFork0_thidvar4=v_thread5Thread1of1ForFork0_thidvar4_2, thread5Thread1of1ForFork0_thidvar3=v_thread5Thread1of1ForFork0_thidvar3_2, thread5Thread1of1ForFork0_thidvar2=v_thread5Thread1of1ForFork0_thidvar2_2, thread5Thread1of1ForFork0_thidvar1=v_thread5Thread1of1ForFork0_thidvar1_2, thread5Thread1of1ForFork0_thidvar0=v_thread5Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread5Thread1of1ForFork0_thidvar4, thread5Thread1of1ForFork0_thidvar3, thread5Thread1of1ForFork0_thidvar2, thread5Thread1of1ForFork0_thidvar1, thread5Thread1of1ForFork0_thidvar0]" "[124] $Ultimate##0-->L75-1: Formula: (< 3 v_f_10) InVars {f=v_f_10} OutVars{f=v_f_10} AuxVars[] AssignedVars[]" [2025-02-17 22:47:50,448 INFO L754 eck$LassoCheckResult]: Loop: "[126] L75-1-->L77: Formula: (< v_y2_1 v_z2_3) InVars {z2=v_z2_3, y2=v_y2_1} OutVars{z2=v_z2_3, y2=v_y2_1} AuxVars[] AssignedVars[]" "[128] L77-->L78: Formula: (= v_y2_2 (+ v_y2_3 1)) InVars {y2=v_y2_3} OutVars{y2=v_y2_2} AuxVars[] AssignedVars[y2]" "[129] L78-->L75-1: Formula: (= (+ v_c_9 1) v_c_10) InVars {c=v_c_10} OutVars{c=v_c_9} AuxVars[] AssignedVars[c]" [2025-02-17 22:47:50,448 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:47:50,448 INFO L85 PathProgramCache]: Analyzing trace with hash 603023800, now seen corresponding path program 1 times [2025-02-17 22:47:50,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:47:50,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385490144] [2025-02-17 22:47:50,449 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:47:50,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:47:50,453 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-17 22:47:50,456 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-17 22:47:50,456 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:47:50,456 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:47:50,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-17 22:47:50,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-17 22:47:50,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385490144] [2025-02-17 22:47:50,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1385490144] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-17 22:47:50,487 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-17 22:47:50,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-17 22:47:50,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658220354] [2025-02-17 22:47:50,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-17 22:47:50,490 INFO L757 eck$LassoCheckResult]: stem already infeasible [2025-02-17 22:47:50,491 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:47:50,491 INFO L85 PathProgramCache]: Analyzing trace with hash 154974, now seen corresponding path program 1 times [2025-02-17 22:47:50,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:47:50,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190056320] [2025-02-17 22:47:50,491 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:47:50,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:47:50,493 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:47:50,494 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:47:50,494 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:47:50,494 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:47:50,494 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:47:50,494 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:47:50,495 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:47:50,495 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:47:50,495 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:47:50,496 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:47:50,525 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:47:50,525 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:47:50,525 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:47:50,525 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:47:50,525 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-17 22:47:50,525 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:47:50,525 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:47:50,525 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:47:50,525 INFO L132 ssoRankerPreferences]: Filename of dumped script: pc5v.c.bpl_petrified1_Iteration5_Loop [2025-02-17 22:47:50,526 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:47:50,526 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:47:50,526 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:47:50,532 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:47:50,556 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:47:50,557 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-17 22:47:50,557 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:47:50,557 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:47:50,559 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 22:47:50,562 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 22:47:50,562 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:47:50,562 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:47:50,580 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2025-02-17 22:47:50,580 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:47:50,580 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:47:50,582 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 22:47:50,583 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 22:47:50,585 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-17 22:47:50,585 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:47:50,610 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-02-17 22:47:50,611 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {c=0} Honda state: {c=0} Generalized eigenvectors: [{c=0}, {c=7}, {c=-8}] Lambdas: [0, 1, 1] Nus: [0, 0] [2025-02-17 22:47:50,616 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2025-02-17 22:47:50,616 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:47:50,616 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:47:50,618 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 22:47:50,619 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 22:47:50,621 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:47:50,621 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:47:50,637 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 22:47:50,637 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:47:50,637 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:47:50,640 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 22:47:50,641 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 22:47:50,643 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-17 22:47:50,643 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:47:50,718 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-17 22:47:50,726 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 22:47:50,726 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:47:50,726 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:47:50,726 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:47:50,726 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:47:50,726 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-17 22:47:50,726 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:47:50,726 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:47:50,726 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:47:50,726 INFO L132 ssoRankerPreferences]: Filename of dumped script: pc5v.c.bpl_petrified1_Iteration5_Loop [2025-02-17 22:47:50,726 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:47:50,726 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:47:50,727 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:47:50,732 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:47:50,758 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:47:50,758 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-17 22:47:50,759 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:47:50,759 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:47:50,762 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 22:47:50,764 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 22:47:50,765 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-02-17 22:47:50,775 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:47:50,775 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-17 22:47:50,775 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:47:50,775 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:47:50,775 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:47:50,776 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-17 22:47:50,776 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-17 22:47:50,779 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-17 22:47:50,785 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 22:47:50,785 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:47:50,785 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:47:50,787 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 22:47:50,788 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 22:47:50,789 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-02-17 22:47:50,799 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:47:50,800 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-17 22:47:50,800 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:47:50,800 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:47:50,800 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:47:50,801 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-17 22:47:50,801 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-17 22:47:50,804 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-17 22:47:50,806 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-02-17 22:47:50,806 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2025-02-17 22:47:50,806 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:47:50,806 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:47:50,808 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 22:47:50,811 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 22:47:50,811 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-17 22:47:50,811 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-02-17 22:47:50,811 INFO L474 LassoAnalysis]: Proved termination. [2025-02-17 22:47:50,812 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(y2, z2) = -1*y2 + 1*z2 Supporting invariants [] [2025-02-17 22:47:50,816 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2025-02-17 22:47:50,817 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-02-17 22:47:50,826 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:47:50,830 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-17 22:47:50,832 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-17 22:47:50,832 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:47:50,832 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:47:50,833 INFO L256 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-17 22:47:50,833 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:47:50,846 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:47:50,847 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:47:50,847 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:47:50,847 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:47:50,847 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-17 22:47:50,847 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:47:50,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-17 22:47:50,872 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2025-02-17 22:47:50,873 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 76608 states and 471216 transitions. cyclomatic complexity: 400309 Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:47:51,292 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 22:47:53,291 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 76608 states and 471216 transitions. cyclomatic complexity: 400309. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 180757 states and 1140044 transitions. Complement of second has 6 states. [2025-02-17 22:47:53,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2025-02-17 22:47:53,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:47:53,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 124 transitions. [2025-02-17 22:47:53,293 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 124 transitions. Stem has 7 letters. Loop has 3 letters. [2025-02-17 22:47:53,293 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:47:53,293 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 124 transitions. Stem has 10 letters. Loop has 3 letters. [2025-02-17 22:47:53,293 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:47:53,293 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 124 transitions. Stem has 7 letters. Loop has 6 letters. [2025-02-17 22:47:53,293 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:47:53,293 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 180757 states and 1140044 transitions. [2025-02-17 22:47:56,808 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-02-17 22:47:56,808 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 180757 states to 0 states and 0 transitions. [2025-02-17 22:47:56,809 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2025-02-17 22:47:56,809 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2025-02-17 22:47:56,809 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2025-02-17 22:47:56,809 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-02-17 22:47:56,809 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-02-17 22:47:56,809 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-02-17 22:47:56,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-17 22:47:56,811 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-17 22:47:56,812 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-17 22:47:56,812 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:47:56,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-17 22:47:56,814 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2025-02-17 22:47:56,814 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2025-02-17 22:47:56,814 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-02-17 22:47:56,814 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2025-02-17 22:47:56,814 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2025-02-17 22:47:56,814 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2025-02-17 22:47:56,814 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2025-02-17 22:47:56,814 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-02-17 22:47:56,814 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-02-17 22:47:56,814 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-02-17 22:47:56,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-17 22:47:56,814 INFO L432 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-02-17 22:47:56,815 INFO L338 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2025-02-17 22:47:56,815 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2025-02-17 22:47:56,815 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-02-17 22:47:56,815 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2025-02-17 22:47:56,819 INFO L201 PluginConnector]: Adding new model pc5v.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 17.02 10:47:56 BoogieIcfgContainer [2025-02-17 22:47:56,819 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2025-02-17 22:47:56,820 INFO L158 Benchmark]: Toolchain (without parser) took 32341.69ms. Allocated memory was 159.4MB in the beginning and 7.3GB in the end (delta: 7.2GB). Free memory was 85.0MB in the beginning and 3.8GB in the end (delta: -3.8GB). Peak memory consumption was 3.4GB. Max. memory is 8.0GB. [2025-02-17 22:47:56,820 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.17ms. Allocated memory is still 159.4MB. Free memory is still 85.9MB. There was no memory consumed. Max. memory is 8.0GB. [2025-02-17 22:47:56,820 INFO L158 Benchmark]: Boogie Procedure Inliner took 21.76ms. Allocated memory is still 159.4MB. Free memory was 85.0MB in the beginning and 83.6MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 8.0GB. [2025-02-17 22:47:56,820 INFO L158 Benchmark]: Boogie Preprocessor took 11.02ms. Allocated memory is still 159.4MB. Free memory was 83.6MB in the beginning and 82.9MB in the end (delta: 752.2kB). There was no memory consumed. Max. memory is 8.0GB. [2025-02-17 22:47:56,820 INFO L158 Benchmark]: RCFGBuilder took 189.84ms. Allocated memory is still 159.4MB. Free memory was 82.9MB in the beginning and 73.2MB in the end (delta: 9.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2025-02-17 22:47:56,821 INFO L158 Benchmark]: BuchiAutomizer took 32116.33ms. Allocated memory was 159.4MB in the beginning and 7.3GB in the end (delta: 7.2GB). Free memory was 73.1MB in the beginning and 3.8GB in the end (delta: -3.8GB). Peak memory consumption was 3.4GB. Max. memory is 8.0GB. [2025-02-17 22:47:56,821 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 0.17ms. Allocated memory is still 159.4MB. Free memory is still 85.9MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 21.76ms. Allocated memory is still 159.4MB. Free memory was 85.0MB in the beginning and 83.6MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 8.0GB. * Boogie Preprocessor took 11.02ms. Allocated memory is still 159.4MB. Free memory was 83.6MB in the beginning and 82.9MB in the end (delta: 752.2kB). There was no memory consumed. Max. memory is 8.0GB. * RCFGBuilder took 189.84ms. Allocated memory is still 159.4MB. Free memory was 82.9MB in the beginning and 73.2MB in the end (delta: 9.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * BuchiAutomizer took 32116.33ms. Allocated memory was 159.4MB in the beginning and 7.3GB in the end (delta: 7.2GB). Free memory was 73.1MB in the beginning and 3.8GB in the end (delta: -3.8GB). Peak memory consumption was 3.4GB. 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 6 terminating modules (1 trivial, 5 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -1 * x1 + z1 and consists of 4 locations. One deterministic module has affine ranking function z2 + -1 * x2 and consists of 4 locations. One deterministic module has affine ranking function -1 * y1 + z1 and consists of 4 locations. One deterministic module has affine ranking function -1 * x3 + z1 and consists of 4 locations. One deterministic module has affine ranking function -1 * y2 + z2 and consists of 4 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 32.0s and 6 iterations. TraceHistogramMax:1. Analysis of lassos took 1.9s. Construction of modules took 0.1s. Büchi inclusion checks took 7.1s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 4. Automata minimization 7.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 18001 StatesRemovedByMinimization, 4 NontrivialMinimizations. Non-live state removal took 12.5s Buchi closure took 0.2s. 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, 396 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 391 mSDsluCounter, 628 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 340 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 259 IncrementalHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 288 mSDtfsCounter, 259 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT4 conc0 concLT0 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital17 mio100 ax100 hnf100 lsp70 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq150 hnf94 smp100 dnf100 smp100 tf111 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 94ms VariablesStem: 0 VariablesLoop: 3 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 3 LassoNonterminationAnalysisUnsat: 5 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.6s 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 22:47:56,830 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...