/root/.sdkman/candidates/java/21.0.5-tem/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/buchiAutomizer/concurrent-automaton-noLbe.epf -tc ../../../trunk/examples/toolchains/BuchiAutomizerBplInline.xml -i /storage/cav23-termute-examples/2_thr/adfg_2_seq_1.c.bpl -------------------------------------------------------------------------------- This is Ultimate 0.3.0-wip.dk.ample-buchi-a4216cd-m [2025-04-26 16:24:04,080 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-26 16:24:04,134 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/settings/buchiAutomizer/concurrent-automaton-noLbe.epf [2025-04-26 16:24:04,141 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-26 16:24:04,141 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-26 16:24:04,159 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-26 16:24:04,160 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-26 16:24:04,160 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-26 16:24:04,160 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-26 16:24:04,160 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-26 16:24:04,160 INFO L153 SettingsManager]: * Use SBE=true [2025-04-26 16:24:04,160 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2025-04-26 16:24:04,160 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2025-04-26 16:24:04,160 INFO L153 SettingsManager]: * Use old map elimination=false [2025-04-26 16:24:04,160 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2025-04-26 16:24:04,160 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2025-04-26 16:24:04,161 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2025-04-26 16:24:04,161 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-26 16:24:04,161 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2025-04-26 16:24:04,161 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-26 16:24:04,161 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-26 16:24:04,161 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-26 16:24:04,161 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-26 16:24:04,161 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2025-04-26 16:24:04,161 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2025-04-26 16:24:04,161 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2025-04-26 16:24:04,161 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-04-26 16:24:04,161 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-26 16:24:04,161 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-26 16:24:04,161 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2025-04-26 16:24:04,161 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-26 16:24:04,161 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-26 16:24:04,161 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-26 16:24:04,162 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-26 16:24:04,162 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-26 16:24:04,162 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2025-04-26 16:24:04,162 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR [2025-04-26 16:24:04,400 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-26 16:24:04,408 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-26 16:24:04,409 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-26 16:24:04,411 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2025-04-26 16:24:04,412 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2025-04-26 16:24:04,413 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/cav23-termute-examples/2_thr/adfg_2_seq_1.c.bpl [2025-04-26 16:24:04,413 INFO L110 BoogieParser]: Parsing: '/storage/cav23-termute-examples/2_thr/adfg_2_seq_1.c.bpl' [2025-04-26 16:24:04,431 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-26 16:24:04,432 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2025-04-26 16:24:04,433 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-26 16:24:04,433 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-26 16:24:04,433 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-26 16:24:04,440 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "adfg_2_seq_1.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:24:04" (1/1) ... [2025-04-26 16:24:04,459 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "adfg_2_seq_1.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:24:04" (1/1) ... [2025-04-26 16:24:04,466 INFO L138 Inliner]: procedures = 3, calls = 2, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2025-04-26 16:24:04,467 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-26 16:24:04,469 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-26 16:24:04,469 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-26 16:24:04,469 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-26 16:24:04,473 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "adfg_2_seq_1.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:24:04" (1/1) ... [2025-04-26 16:24:04,474 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "adfg_2_seq_1.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:24:04" (1/1) ... [2025-04-26 16:24:04,475 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "adfg_2_seq_1.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:24:04" (1/1) ... [2025-04-26 16:24:04,475 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "adfg_2_seq_1.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:24:04" (1/1) ... [2025-04-26 16:24:04,476 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "adfg_2_seq_1.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:24:04" (1/1) ... [2025-04-26 16:24:04,477 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "adfg_2_seq_1.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:24:04" (1/1) ... [2025-04-26 16:24:04,482 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "adfg_2_seq_1.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:24:04" (1/1) ... [2025-04-26 16:24:04,482 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "adfg_2_seq_1.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:24:04" (1/1) ... [2025-04-26 16:24:04,483 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "adfg_2_seq_1.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:24:04" (1/1) ... [2025-04-26 16:24:04,492 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-26 16:24:04,493 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-26 16:24:04,493 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-26 16:24:04,493 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-26 16:24:04,496 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "adfg_2_seq_1.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:24:04" (1/1) ... [2025-04-26 16:24:04,500 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:04,511 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:04,521 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:24:04,524 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2025-04-26 16:24:04,548 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2025-04-26 16:24:04,548 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-04-26 16:24:04,548 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-04-26 16:24:04,548 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2025-04-26 16:24:04,548 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-04-26 16:24:04,548 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-04-26 16:24:04,548 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2025-04-26 16:24:04,549 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-26 16:24:04,549 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-26 16:24:04,549 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-04-26 16:24:04,589 INFO L234 CfgBuilder]: Building ICFG [2025-04-26 16:24:04,590 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-26 16:24:04,686 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-26 16:24:04,686 INFO L283 CfgBuilder]: Performing block encoding [2025-04-26 16:24:04,694 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-26 16:24:04,696 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-04-26 16:24:04,696 INFO L201 PluginConnector]: Adding new model adfg_2_seq_1.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.04 04:24:04 BoogieIcfgContainer [2025-04-26 16:24:04,696 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-26 16:24:04,697 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2025-04-26 16:24:04,697 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2025-04-26 16:24:04,703 INFO L274 PluginConnector]: BuchiAutomizer initialized [2025-04-26 16:24:04,704 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-04-26 16:24:04,704 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "adfg_2_seq_1.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:24:04" (1/2) ... [2025-04-26 16:24:04,705 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7b0dd75c and model type adfg_2_seq_1.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.04 04:24:04, skipping insertion in model container [2025-04-26 16:24:04,705 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-04-26 16:24:04,705 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "adfg_2_seq_1.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.04 04:24:04" (2/2) ... [2025-04-26 16:24:04,706 INFO L376 chiAutomizerObserver]: Analyzing ICFG adfg_2_seq_1.c.bpl [2025-04-26 16:24:04,758 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-04-26 16:24:04,792 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 39 places, 44 transitions, 102 flow [2025-04-26 16:24:04,813 INFO L116 PetriNetUnfolderBase]: 10/40 cut-off events. [2025-04-26 16:24:04,814 INFO L117 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-04-26 16:24:04,819 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49 conditions, 40 events. 10/40 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 84 event pairs, 0 based on Foata normal form. 0/30 useless extension candidates. Maximal degree in co-relation 38. Up to 4 conditions per place. [2025-04-26 16:24:04,819 INFO L82 GeneralOperation]: Start removeDead. Operand has 39 places, 44 transitions, 102 flow [2025-04-26 16:24:04,822 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 37 places, 40 transitions, 92 flow [2025-04-26 16:24:04,822 INFO L84 lAbstractionProvider]: Constructed initial Petri net abstraction that has has 37 places, 40 transitions, 92 flow [2025-04-26 16:24:04,831 INFO L306 stractBuchiCegarLoop]: Interprodecural is true [2025-04-26 16:24:04,831 INFO L307 stractBuchiCegarLoop]: Hoare is None [2025-04-26 16:24:04,831 INFO L308 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2025-04-26 16:24:04,832 INFO L309 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2025-04-26 16:24:04,832 INFO L310 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2025-04-26 16:24:04,832 INFO L311 stractBuchiCegarLoop]: Difference is false [2025-04-26 16:24:04,832 INFO L312 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2025-04-26 16:24:04,832 INFO L316 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2025-04-26 16:24:04,833 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 0 states, but on-demand construction may add more states [2025-04-26 16:24:04,889 INFO L131 ngComponentsAnalysis]: Automaton has 38 accepting balls. 162 [2025-04-26 16:24:04,890 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 16:24:04,890 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 16:24:04,893 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2025-04-26 16:24:04,893 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-04-26 16:24:04,893 INFO L340 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2025-04-26 16:24:04,893 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 205 states, but on-demand construction may add more states [2025-04-26 16:24:04,901 INFO L131 ngComponentsAnalysis]: Automaton has 38 accepting balls. 162 [2025-04-26 16:24:04,902 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 16:24:04,902 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 16:24:04,902 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2025-04-26 16:24:04,902 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-04-26 16:24:04,906 INFO L752 eck$LassoCheckResult]: Stem: "[155] $Ultimate##0-->$Ultimate##0: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" "[118] $Ultimate##0-->L27: Formula: (<= 1 v_b_1) InVars {b=v_b_1} OutVars{b=v_b_1} AuxVars[] AssignedVars[]" "[120] L27-->L35-2: Formula: (= v_t_1 1) InVars {} OutVars{t=v_t_1} AuxVars[] AssignedVars[t]" [2025-04-26 16:24:04,906 INFO L754 eck$LassoCheckResult]: Loop: "[123] L35-2-->L35: Formula: (<= v_x1_1 v_n_2) InVars {x1=v_x1_1, n=v_n_2} OutVars{x1=v_x1_1, n=v_n_2} AuxVars[] AssignedVars[]" "[125] L35-->L37: Formula: (<= 1 v_b_3) InVars {b=v_b_3} OutVars{b=v_b_3} AuxVars[] AssignedVars[]" "[129] L37-->L35-2: Formula: (= (+ v_x1_3 v_t_3) v_x1_2) InVars {x1=v_x1_3, t=v_t_3} OutVars{x1=v_x1_2, t=v_t_3} AuxVars[] AssignedVars[x1]" [2025-04-26 16:24:04,912 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:24:04,913 INFO L85 PathProgramCache]: Analyzing trace with hash 182524, now seen corresponding path program 1 times [2025-04-26 16:24:04,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:24:04,918 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782868180] [2025-04-26 16:24:04,918 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:24:04,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:24:04,961 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:24:04,966 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:24:04,967 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:04,967 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:04,968 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:24:04,971 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:24:04,972 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:24:04,972 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:04,972 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:04,981 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:24:04,983 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:24:04,983 INFO L85 PathProgramCache]: Analyzing trace with hash 151998, now seen corresponding path program 1 times [2025-04-26 16:24:04,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:24:04,983 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442275760] [2025-04-26 16:24:04,983 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:24:04,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:24:04,986 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:24:04,988 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:24:04,988 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:04,989 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:04,989 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:24:04,990 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:24:04,990 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:24:04,990 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:04,991 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:04,992 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:24:04,992 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:24:04,993 INFO L85 PathProgramCache]: Analyzing trace with hash 1142727395, now seen corresponding path program 1 times [2025-04-26 16:24:04,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:24:04,993 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439684293] [2025-04-26 16:24:04,993 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:24:04,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:24:04,995 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-04-26 16:24:04,998 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-04-26 16:24:04,998 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:04,999 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:04,999 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:24:05,000 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-04-26 16:24:05,001 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-04-26 16:24:05,001 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:05,001 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:05,002 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:24:05,072 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:24:05,073 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:24:05,073 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:24:05,073 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:24:05,073 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-04-26 16:24:05,073 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:05,073 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:24:05,073 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:24:05,073 INFO L132 ssoRankerPreferences]: Filename of dumped script: adfg_2_seq_1.c.bpl_petrified1_Iteration1_Lasso [2025-04-26 16:24:05,073 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:24:05,073 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:24:05,083 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:05,091 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:05,097 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:05,152 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:24:05,153 INFO L367 LassoAnalysis]: Checking for nontermination... [2025-04-26 16:24:05,154 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:05,154 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:05,157 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:24:05,159 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2025-04-26 16:24:05,160 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:24:05,160 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:24:05,181 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 16:24:05,181 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {b=1} Honda state: {b=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-04-26 16:24:05,188 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2025-04-26 16:24:05,188 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:05,189 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:05,190 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:24:05,191 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2025-04-26 16:24:05,193 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:24:05,193 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:24:05,205 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 16:24:05,205 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {thread1Thread1of1ForFork0_thidvar0=0} Honda state: {thread1Thread1of1ForFork0_thidvar0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-04-26 16:24:05,211 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2025-04-26 16:24:05,211 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:05,212 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:05,214 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:24:05,215 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2025-04-26 16:24:05,216 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:24:05,216 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:24:05,235 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2025-04-26 16:24:05,236 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:05,236 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:05,238 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:24:05,240 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2025-04-26 16:24:05,242 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 16:24:05,242 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:24:05,417 INFO L407 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-04-26 16:24:05,423 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2025-04-26 16:24:05,423 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:24:05,423 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:24:05,423 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:24:05,423 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:24:05,424 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-04-26 16:24:05,424 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:05,424 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:24:05,424 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:24:05,424 INFO L132 ssoRankerPreferences]: Filename of dumped script: adfg_2_seq_1.c.bpl_petrified1_Iteration1_Lasso [2025-04-26 16:24:05,424 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:24:05,424 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:24:05,428 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:05,433 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:05,444 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:05,482 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:24:05,485 INFO L453 LassoAnalysis]: Using template 'affine'. [2025-04-26 16:24:05,485 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:05,486 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:05,487 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:24:05,508 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2025-04-26 16:24:05,511 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-04-26 16:24:05,522 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:24:05,523 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:24:05,523 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:24:05,523 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:24:05,530 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-04-26 16:24:05,530 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-04-26 16:24:05,534 INFO L490 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-04-26 16:24:05,540 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 [2025-04-26 16:24:05,540 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:05,540 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:05,542 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:24:05,543 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2025-04-26 16:24:05,544 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-04-26 16:24:05,554 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:24:05,554 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:24:05,554 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:24:05,554 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:24:05,557 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-04-26 16:24:05,557 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-04-26 16:24:05,569 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-04-26 16:24:05,573 INFO L436 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2025-04-26 16:24:05,574 INFO L437 ModelExtractionUtils]: 5 out of 13 variables were initially zero. Simplification set additionally 0 variables to zero. [2025-04-26 16:24:05,575 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:05,575 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:05,578 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:24:05,580 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2025-04-26 16:24:05,581 INFO L436 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-04-26 16:24:05,597 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2025-04-26 16:24:05,597 INFO L439 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2025-04-26 16:24:05,597 INFO L476 LassoAnalysis]: Proved termination. [2025-04-26 16:24:05,598 INFO L478 LassoAnalysis]: Termination argument consisting of: Ranking function f(t, x1, n) = 1*t - 2*x1 + 2*n Supporting invariants [1*t - 1 >= 0] [2025-04-26 16:24:05,603 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2025-04-26 16:24:05,611 INFO L156 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2025-04-26 16:24:05,647 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:24:05,660 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:24:05,679 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:24:05,680 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:05,680 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:24:05,681 INFO L256 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-04-26 16:24:05,682 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:24:05,696 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:24:05,697 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:24:05,697 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:05,697 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:24:05,698 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-04-26 16:24:05,698 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:24:05,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-26 16:24:05,786 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2025-04-26 16:24:05,792 INFO L70 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand currently 205 states, but on-demand construction may add more states Second operand has 3 states, 3 states have (on average 2.0) internal successors, (in total 6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:24:05,986 INFO L74 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand currently 205 states, but on-demand construction may add more states. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (in total 6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) Result 779 states and 2040 transitions. Complement of second has 8 states. [2025-04-26 16:24:05,992 INFO L140 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 2 accepting loop states [2025-04-26 16:24:05,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (in total 6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:24:06,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 104 transitions. [2025-04-26 16:24:06,004 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 5 states and 104 transitions. Stem has 3 letters. Loop has 3 letters. [2025-04-26 16:24:06,004 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:24:06,004 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 5 states and 104 transitions. Stem has 6 letters. Loop has 3 letters. [2025-04-26 16:24:06,005 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:24:06,005 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 5 states and 104 transitions. Stem has 3 letters. Loop has 6 letters. [2025-04-26 16:24:06,005 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:24:06,005 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 779 states and 2040 transitions. [2025-04-26 16:24:06,023 INFO L131 ngComponentsAnalysis]: Automaton has 102 accepting balls. 426 [2025-04-26 16:24:06,035 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 779 states to 622 states and 1649 transitions. [2025-04-26 16:24:06,035 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 525 [2025-04-26 16:24:06,040 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 575 [2025-04-26 16:24:06,040 INFO L74 IsDeterministic]: Start isDeterministic. Operand 622 states and 1649 transitions. [2025-04-26 16:24:06,041 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-04-26 16:24:06,041 INFO L218 hiAutomatonCegarLoop]: Abstraction has 622 states and 1649 transitions. [2025-04-26 16:24:06,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 622 states and 1649 transitions. [2025-04-26 16:24:06,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 622 to 295. [2025-04-26 16:24:06,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 295 states, 295 states have (on average 2.7389830508474575) internal successors, (in total 808), 294 states have internal predecessors, (808), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:24:06,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 808 transitions. [2025-04-26 16:24:06,076 INFO L240 hiAutomatonCegarLoop]: Abstraction has 295 states and 808 transitions. [2025-04-26 16:24:06,076 INFO L438 stractBuchiCegarLoop]: Abstraction has 295 states and 808 transitions. [2025-04-26 16:24:06,076 INFO L340 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2025-04-26 16:24:06,076 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand 295 states and 808 transitions. [2025-04-26 16:24:06,078 INFO L131 ngComponentsAnalysis]: Automaton has 44 accepting balls. 180 [2025-04-26 16:24:06,079 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 16:24:06,079 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 16:24:06,079 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2025-04-26 16:24:06,079 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-04-26 16:24:06,080 INFO L752 eck$LassoCheckResult]: Stem: "[155] $Ultimate##0-->$Ultimate##0: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" "[119] $Ultimate##0-->L31: Formula: (< v_b_2 1) InVars {b=v_b_2} OutVars{b=v_b_2} AuxVars[] AssignedVars[]" "[121] L31-->L35-2: Formula: (= (+ v_t_2 1) 0) InVars {} OutVars{t=v_t_2} AuxVars[] AssignedVars[t]" [2025-04-26 16:24:06,080 INFO L754 eck$LassoCheckResult]: Loop: "[123] L35-2-->L35: Formula: (<= v_x1_1 v_n_2) InVars {x1=v_x1_1, n=v_n_2} OutVars{x1=v_x1_1, n=v_n_2} AuxVars[] AssignedVars[]" "[125] L35-->L37: Formula: (<= 1 v_b_3) InVars {b=v_b_3} OutVars{b=v_b_3} AuxVars[] AssignedVars[]" "[129] L37-->L35-2: Formula: (= (+ v_x1_3 v_t_3) v_x1_2) InVars {x1=v_x1_3, t=v_t_3} OutVars{x1=v_x1_2, t=v_t_3} AuxVars[] AssignedVars[x1]" [2025-04-26 16:24:06,081 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:24:06,081 INFO L85 PathProgramCache]: Analyzing trace with hash 182556, now seen corresponding path program 1 times [2025-04-26 16:24:06,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:24:06,081 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693120017] [2025-04-26 16:24:06,081 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:24:06,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:24:06,083 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:24:06,084 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:24:06,084 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:06,085 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:06,085 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:24:06,085 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:24:06,086 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:24:06,086 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:06,086 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:06,087 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:24:06,087 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:24:06,087 INFO L85 PathProgramCache]: Analyzing trace with hash 151998, now seen corresponding path program 2 times [2025-04-26 16:24:06,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:24:06,087 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988721326] [2025-04-26 16:24:06,087 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-26 16:24:06,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:24:06,090 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:24:06,091 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:24:06,091 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-04-26 16:24:06,091 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:06,091 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:24:06,092 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:24:06,094 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:24:06,095 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:06,095 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:06,095 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:24:06,096 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:24:06,096 INFO L85 PathProgramCache]: Analyzing trace with hash 1143680707, now seen corresponding path program 1 times [2025-04-26 16:24:06,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:24:06,096 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933863719] [2025-04-26 16:24:06,096 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:24:06,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:24:06,097 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-04-26 16:24:06,100 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-04-26 16:24:06,100 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:06,100 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:24:06,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-26 16:24:06,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-26 16:24:06,122 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933863719] [2025-04-26 16:24:06,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1933863719] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-26 16:24:06,122 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-26 16:24:06,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-04-26 16:24:06,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901619878] [2025-04-26 16:24:06,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-26 16:24:06,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-26 16:24:06,144 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-26 16:24:06,144 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-26 16:24:06,145 INFO L87 Difference]: Start difference. First operand 295 states and 808 transitions. cyclomatic complexity: 565 Second operand has 3 states, 3 states have (on average 2.0) internal successors, (in total 6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:24:06,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-26 16:24:06,184 INFO L93 Difference]: Finished difference Result 427 states and 1103 transitions. [2025-04-26 16:24:06,184 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 427 states and 1103 transitions. [2025-04-26 16:24:06,190 INFO L131 ngComponentsAnalysis]: Automaton has 83 accepting balls. 251 [2025-04-26 16:24:06,192 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 427 states to 413 states and 1046 transitions. [2025-04-26 16:24:06,192 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 356 [2025-04-26 16:24:06,193 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 369 [2025-04-26 16:24:06,194 INFO L74 IsDeterministic]: Start isDeterministic. Operand 413 states and 1046 transitions. [2025-04-26 16:24:06,194 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-04-26 16:24:06,194 INFO L218 hiAutomatonCegarLoop]: Abstraction has 413 states and 1046 transitions. [2025-04-26 16:24:06,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states and 1046 transitions. [2025-04-26 16:24:06,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 364. [2025-04-26 16:24:06,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 364 states, 364 states have (on average 2.541208791208791) internal successors, (in total 925), 363 states have internal predecessors, (925), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:24:06,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 925 transitions. [2025-04-26 16:24:06,209 INFO L240 hiAutomatonCegarLoop]: Abstraction has 364 states and 925 transitions. [2025-04-26 16:24:06,209 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-26 16:24:06,209 INFO L438 stractBuchiCegarLoop]: Abstraction has 364 states and 925 transitions. [2025-04-26 16:24:06,210 INFO L340 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2025-04-26 16:24:06,210 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand 364 states and 925 transitions. [2025-04-26 16:24:06,211 INFO L131 ngComponentsAnalysis]: Automaton has 72 accepting balls. 225 [2025-04-26 16:24:06,213 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 16:24:06,213 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 16:24:06,214 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2025-04-26 16:24:06,214 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-04-26 16:24:06,214 INFO L752 eck$LassoCheckResult]: Stem: "[155] $Ultimate##0-->$Ultimate##0: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" "[119] $Ultimate##0-->L31: Formula: (< v_b_2 1) InVars {b=v_b_2} OutVars{b=v_b_2} AuxVars[] AssignedVars[]" "[121] L31-->L35-2: Formula: (= (+ v_t_2 1) 0) InVars {} OutVars{t=v_t_2} AuxVars[] AssignedVars[t]" [2025-04-26 16:24:06,214 INFO L754 eck$LassoCheckResult]: Loop: "[123] L35-2-->L35: Formula: (<= v_x1_1 v_n_2) InVars {x1=v_x1_1, n=v_n_2} OutVars{x1=v_x1_1, n=v_n_2} AuxVars[] AssignedVars[]" "[126] L35-->L41: Formula: (< v_b_4 1) InVars {b=v_b_4} OutVars{b=v_b_4} AuxVars[] AssignedVars[]" "[130] L41-->L35-2: Formula: (= (+ v_x1_4 v_t_4) v_x1_5) InVars {x1=v_x1_5, t=v_t_4} OutVars{x1=v_x1_4, t=v_t_4} AuxVars[] AssignedVars[x1]" [2025-04-26 16:24:06,214 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:24:06,214 INFO L85 PathProgramCache]: Analyzing trace with hash 182556, now seen corresponding path program 2 times [2025-04-26 16:24:06,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:24:06,215 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596423240] [2025-04-26 16:24:06,215 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-26 16:24:06,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:24:06,216 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:24:06,217 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:24:06,217 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-04-26 16:24:06,217 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:06,217 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:24:06,218 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:24:06,219 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:24:06,219 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:06,219 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:06,219 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:24:06,220 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:24:06,220 INFO L85 PathProgramCache]: Analyzing trace with hash 152030, now seen corresponding path program 1 times [2025-04-26 16:24:06,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:24:06,220 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763768508] [2025-04-26 16:24:06,220 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:24:06,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:24:06,221 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:24:06,222 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:24:06,222 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:06,222 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:06,222 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:24:06,223 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:24:06,223 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:24:06,223 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:06,223 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:06,224 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:24:06,224 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:24:06,224 INFO L85 PathProgramCache]: Analyzing trace with hash 1143680739, now seen corresponding path program 1 times [2025-04-26 16:24:06,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:24:06,226 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737650359] [2025-04-26 16:24:06,226 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:24:06,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:24:06,228 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-04-26 16:24:06,229 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-04-26 16:24:06,229 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:06,229 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:06,229 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:24:06,231 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-04-26 16:24:06,233 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-04-26 16:24:06,233 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:06,233 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:06,234 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:24:06,268 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:24:06,268 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:24:06,268 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:24:06,268 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:24:06,268 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-04-26 16:24:06,268 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:06,268 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:24:06,268 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:24:06,268 INFO L132 ssoRankerPreferences]: Filename of dumped script: adfg_2_seq_1.c.bpl_petrified1_Iteration3_Lasso [2025-04-26 16:24:06,268 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:24:06,268 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:24:06,269 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:06,271 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:06,274 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:06,306 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:24:06,306 INFO L367 LassoAnalysis]: Checking for nontermination... [2025-04-26 16:24:06,306 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:06,306 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:06,308 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:24:06,309 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2025-04-26 16:24:06,310 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:24:06,310 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:24:06,321 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 16:24:06,321 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {thread1Thread1of1ForFork0_thidvar0=0} Honda state: {thread1Thread1of1ForFork0_thidvar0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-04-26 16:24:06,326 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 [2025-04-26 16:24:06,326 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:06,327 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:06,328 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:24:06,329 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2025-04-26 16:24:06,331 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:24:06,331 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:24:06,349 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 16:24:06,349 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {b=0} Honda state: {b=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-04-26 16:24:06,355 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2025-04-26 16:24:06,355 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:06,355 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:06,357 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:24:06,358 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2025-04-26 16:24:06,359 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:24:06,359 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:24:06,375 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2025-04-26 16:24:06,375 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:06,375 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:06,377 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) [2025-04-26 16:24:06,379 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 [2025-04-26 16:24:06,380 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 16:24:06,380 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:24:06,500 INFO L407 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-04-26 16:24:06,505 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 [2025-04-26 16:24:06,506 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:24:06,506 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:24:06,506 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:24:06,506 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:24:06,506 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-04-26 16:24:06,506 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:06,506 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:24:06,506 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:24:06,506 INFO L132 ssoRankerPreferences]: Filename of dumped script: adfg_2_seq_1.c.bpl_petrified1_Iteration3_Lasso [2025-04-26 16:24:06,506 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:24:06,506 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:24:06,508 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:06,513 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:06,518 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:06,563 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:24:06,563 INFO L453 LassoAnalysis]: Using template 'affine'. [2025-04-26 16:24:06,563 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:06,563 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:06,565 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) [2025-04-26 16:24:06,566 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 [2025-04-26 16:24:06,568 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-04-26 16:24:06,578 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:24:06,578 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:24:06,578 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:24:06,578 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:24:06,582 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-04-26 16:24:06,582 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-04-26 16:24:06,587 INFO L490 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-04-26 16:24:06,593 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 [2025-04-26 16:24:06,594 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:06,594 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:06,596 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) [2025-04-26 16:24:06,599 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 [2025-04-26 16:24:06,599 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-04-26 16:24:06,609 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:24:06,609 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:24:06,609 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:24:06,609 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:24:06,611 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-04-26 16:24:06,611 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-04-26 16:24:06,613 INFO L490 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-04-26 16:24:06,619 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2025-04-26 16:24:06,620 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:06,620 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:06,621 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) [2025-04-26 16:24:06,623 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 [2025-04-26 16:24:06,624 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-04-26 16:24:06,634 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:24:06,634 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:24:06,634 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:24:06,634 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:24:06,637 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-04-26 16:24:06,637 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-04-26 16:24:06,642 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-04-26 16:24:06,649 INFO L436 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2025-04-26 16:24:06,649 INFO L437 ModelExtractionUtils]: 6 out of 13 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-04-26 16:24:06,649 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:06,650 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:06,651 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) [2025-04-26 16:24:06,653 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 [2025-04-26 16:24:06,653 INFO L436 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-04-26 16:24:06,672 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 [2025-04-26 16:24:06,672 INFO L439 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2025-04-26 16:24:06,672 INFO L476 LassoAnalysis]: Proved termination. [2025-04-26 16:24:06,672 INFO L478 LassoAnalysis]: Termination argument consisting of: Ranking function f(n, x1) = 2*n - 2*x1 + 1 Supporting invariants [-1*t - 1 >= 0] [2025-04-26 16:24:06,677 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2025-04-26 16:24:06,682 INFO L156 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2025-04-26 16:24:06,703 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:24:06,708 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:24:06,708 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:24:06,708 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:06,709 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:24:06,709 INFO L256 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-04-26 16:24:06,709 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:24:06,716 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:24:06,717 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:24:06,717 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:06,717 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:24:06,717 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-04-26 16:24:06,717 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:24:06,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-26 16:24:06,742 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2025-04-26 16:24:06,742 INFO L70 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 364 states and 925 transitions. cyclomatic complexity: 642 Second operand has 3 states, 3 states have (on average 2.0) internal successors, (in total 6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:24:06,821 INFO L74 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 364 states and 925 transitions. cyclomatic complexity: 642. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (in total 6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) Result 761 states and 1899 transitions. Complement of second has 7 states. [2025-04-26 16:24:06,822 INFO L140 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2025-04-26 16:24:06,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (in total 6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:24:06,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 90 transitions. [2025-04-26 16:24:06,823 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 90 transitions. Stem has 3 letters. Loop has 3 letters. [2025-04-26 16:24:06,823 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:24:06,823 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 90 transitions. Stem has 6 letters. Loop has 3 letters. [2025-04-26 16:24:06,823 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:24:06,823 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 90 transitions. Stem has 3 letters. Loop has 6 letters. [2025-04-26 16:24:06,824 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:24:06,824 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 761 states and 1899 transitions. [2025-04-26 16:24:06,830 INFO L131 ngComponentsAnalysis]: Automaton has 124 accepting balls. 396 [2025-04-26 16:24:06,836 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 761 states to 654 states and 1634 transitions. [2025-04-26 16:24:06,837 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 533 [2025-04-26 16:24:06,837 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 565 [2025-04-26 16:24:06,837 INFO L74 IsDeterministic]: Start isDeterministic. Operand 654 states and 1634 transitions. [2025-04-26 16:24:06,838 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-04-26 16:24:06,838 INFO L218 hiAutomatonCegarLoop]: Abstraction has 654 states and 1634 transitions. [2025-04-26 16:24:06,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 654 states and 1634 transitions. [2025-04-26 16:24:06,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 654 to 450. [2025-04-26 16:24:06,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 450 states, 450 states have (on average 2.5955555555555554) internal successors, (in total 1168), 449 states have internal predecessors, (1168), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:24:06,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 450 states to 450 states and 1168 transitions. [2025-04-26 16:24:06,848 INFO L240 hiAutomatonCegarLoop]: Abstraction has 450 states and 1168 transitions. [2025-04-26 16:24:06,848 INFO L438 stractBuchiCegarLoop]: Abstraction has 450 states and 1168 transitions. [2025-04-26 16:24:06,848 INFO L340 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2025-04-26 16:24:06,848 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand 450 states and 1168 transitions. [2025-04-26 16:24:06,850 INFO L131 ngComponentsAnalysis]: Automaton has 78 accepting balls. 240 [2025-04-26 16:24:06,850 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 16:24:06,850 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 16:24:06,851 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2025-04-26 16:24:06,851 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-04-26 16:24:06,851 INFO L752 eck$LassoCheckResult]: Stem: "[155] $Ultimate##0-->$Ultimate##0: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" "[158] L16-->$Ultimate##0: Formula: (and (= 2 v_thread2Thread1of1ForFork1_thidvar1_2) (= 2 v_thread2Thread1of1ForFork1_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_2, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_thidvar0, thread2Thread1of1ForFork1_thidvar1]" "[139] $Ultimate##0-->L67: Formula: (<= 1 v_b_7) InVars {b=v_b_7} OutVars{b=v_b_7} AuxVars[] AssignedVars[]" "[141] L67-->L75-2: Formula: (= v_t_6 1) InVars {} OutVars{t=v_t_6} AuxVars[] AssignedVars[t]" [2025-04-26 16:24:06,851 INFO L754 eck$LassoCheckResult]: Loop: "[144] L75-2-->L75: Formula: (<= v_x2_2 v_n_6) InVars {x2=v_x2_2, n=v_n_6} OutVars{x2=v_x2_2, n=v_n_6} AuxVars[] AssignedVars[]" "[147] L75-->L77: Formula: (<= 1 v_b_9) InVars {b=v_b_9} OutVars{b=v_b_9} AuxVars[] AssignedVars[]" "[151] L77-->L75-2: Formula: (= v_x2_3 (+ v_x2_4 v_t_8)) InVars {t=v_t_8, x2=v_x2_4} OutVars{t=v_t_8, x2=v_x2_3} AuxVars[] AssignedVars[x2]" [2025-04-26 16:24:06,851 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:24:06,851 INFO L85 PathProgramCache]: Analyzing trace with hash 5697414, now seen corresponding path program 1 times [2025-04-26 16:24:06,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:24:06,851 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453876270] [2025-04-26 16:24:06,851 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:24:06,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:24:06,853 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-26 16:24:06,854 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-26 16:24:06,854 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:06,854 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:06,854 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:24:06,855 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-26 16:24:06,856 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-26 16:24:06,856 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:06,856 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:06,856 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:24:06,857 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:24:06,857 INFO L85 PathProgramCache]: Analyzing trace with hash 172883, now seen corresponding path program 1 times [2025-04-26 16:24:06,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:24:06,857 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361626819] [2025-04-26 16:24:06,857 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:24:06,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:24:06,871 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:24:06,872 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:24:06,872 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:06,872 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:06,873 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:24:06,873 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:24:06,874 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:24:06,874 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:06,874 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:06,874 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:24:06,879 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:24:06,879 INFO L85 PathProgramCache]: Analyzing trace with hash -2066888274, now seen corresponding path program 1 times [2025-04-26 16:24:06,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:24:06,879 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042141488] [2025-04-26 16:24:06,879 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:24:06,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:24:06,881 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-04-26 16:24:06,886 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-04-26 16:24:06,886 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:06,886 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:06,886 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:24:06,887 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-04-26 16:24:06,888 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-04-26 16:24:06,888 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:06,888 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:06,889 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:24:06,931 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:24:06,931 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:24:06,931 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:24:06,931 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:24:06,931 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-04-26 16:24:06,931 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:06,931 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:24:06,931 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:24:06,931 INFO L132 ssoRankerPreferences]: Filename of dumped script: adfg_2_seq_1.c.bpl_petrified1_Iteration4_Lasso [2025-04-26 16:24:06,931 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:24:06,931 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:24:06,932 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:06,939 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:06,942 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:06,947 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:06,950 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:06,994 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:24:06,994 INFO L367 LassoAnalysis]: Checking for nontermination... [2025-04-26 16:24:06,994 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:06,994 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:06,996 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) [2025-04-26 16:24:06,997 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 [2025-04-26 16:24:06,998 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:24:06,998 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:24:07,010 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 16:24:07,010 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {thread2Thread1of1ForFork1_thidvar0=0} Honda state: {thread2Thread1of1ForFork1_thidvar0=2} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-04-26 16:24:07,016 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2025-04-26 16:24:07,017 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:07,017 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:07,019 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) [2025-04-26 16:24:07,020 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 [2025-04-26 16:24:07,022 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:24:07,022 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:24:07,033 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 16:24:07,033 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {thread1Thread1of1ForFork0_thidvar0=0} Honda state: {thread1Thread1of1ForFork0_thidvar0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-04-26 16:24:07,038 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2025-04-26 16:24:07,038 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:07,038 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:07,040 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) [2025-04-26 16:24:07,040 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 [2025-04-26 16:24:07,041 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:24:07,041 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:24:07,058 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 [2025-04-26 16:24:07,058 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:07,058 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:07,060 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) [2025-04-26 16:24:07,060 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 [2025-04-26 16:24:07,061 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 16:24:07,061 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:24:07,222 INFO L407 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-04-26 16:24:07,228 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 [2025-04-26 16:24:07,228 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:24:07,228 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:24:07,228 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:24:07,228 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:24:07,228 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-04-26 16:24:07,228 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:07,228 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:24:07,228 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:24:07,228 INFO L132 ssoRankerPreferences]: Filename of dumped script: adfg_2_seq_1.c.bpl_petrified1_Iteration4_Lasso [2025-04-26 16:24:07,228 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:24:07,228 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:24:07,229 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:07,233 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:07,235 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:07,239 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:07,241 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:07,283 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:24:07,283 INFO L453 LassoAnalysis]: Using template 'affine'. [2025-04-26 16:24:07,283 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:07,283 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:07,285 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) [2025-04-26 16:24:07,286 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 [2025-04-26 16:24:07,290 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-04-26 16:24:07,300 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:24:07,300 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:24:07,300 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:24:07,300 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:24:07,302 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-04-26 16:24:07,302 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-04-26 16:24:07,304 INFO L490 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-04-26 16:24:07,310 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Ended with exit code 0 [2025-04-26 16:24:07,310 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:07,310 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:07,312 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) [2025-04-26 16:24:07,313 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 [2025-04-26 16:24:07,314 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-04-26 16:24:07,324 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:24:07,324 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:24:07,324 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:24:07,324 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:24:07,326 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-04-26 16:24:07,326 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-04-26 16:24:07,329 INFO L490 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-04-26 16:24:07,334 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2025-04-26 16:24:07,334 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:07,335 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:07,337 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) [2025-04-26 16:24:07,338 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 [2025-04-26 16:24:07,339 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-04-26 16:24:07,349 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:24:07,349 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:24:07,349 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:24:07,349 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:24:07,351 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-04-26 16:24:07,351 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-04-26 16:24:07,355 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-04-26 16:24:07,359 INFO L436 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2025-04-26 16:24:07,359 INFO L437 ModelExtractionUtils]: 5 out of 13 variables were initially zero. Simplification set additionally 0 variables to zero. [2025-04-26 16:24:07,359 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:07,359 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:07,361 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) [2025-04-26 16:24:07,362 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 [2025-04-26 16:24:07,364 INFO L436 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-04-26 16:24:07,381 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 [2025-04-26 16:24:07,381 INFO L439 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2025-04-26 16:24:07,381 INFO L476 LassoAnalysis]: Proved termination. [2025-04-26 16:24:07,381 INFO L478 LassoAnalysis]: Termination argument consisting of: Ranking function f(n, t, x2) = 2*n + 1*t - 2*x2 Supporting invariants [1*t - 1 >= 0] [2025-04-26 16:24:07,386 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2025-04-26 16:24:07,388 INFO L156 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2025-04-26 16:24:07,406 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:24:07,409 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-26 16:24:07,410 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-26 16:24:07,411 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:07,411 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:24:07,414 INFO L256 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-04-26 16:24:07,414 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:24:07,421 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:24:07,422 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:24:07,422 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:07,422 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:24:07,422 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-04-26 16:24:07,422 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:24:07,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-26 16:24:07,449 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2025-04-26 16:24:07,449 INFO L70 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 450 states and 1168 transitions. cyclomatic complexity: 814 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (in total 7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:24:07,546 INFO L74 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 450 states and 1168 transitions. cyclomatic complexity: 814. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (in total 7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) Result 1123 states and 3086 transitions. Complement of second has 8 states. [2025-04-26 16:24:07,546 INFO L140 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 2 accepting loop states [2025-04-26 16:24:07,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (in total 7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:24:07,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 111 transitions. [2025-04-26 16:24:07,547 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 5 states and 111 transitions. Stem has 4 letters. Loop has 3 letters. [2025-04-26 16:24:07,547 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:24:07,547 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 5 states and 111 transitions. Stem has 7 letters. Loop has 3 letters. [2025-04-26 16:24:07,547 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:24:07,547 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 5 states and 111 transitions. Stem has 4 letters. Loop has 6 letters. [2025-04-26 16:24:07,547 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:24:07,547 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1123 states and 3086 transitions. [2025-04-26 16:24:07,557 INFO L131 ngComponentsAnalysis]: Automaton has 133 accepting balls. 397 [2025-04-26 16:24:07,567 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1123 states to 947 states and 2503 transitions. [2025-04-26 16:24:07,567 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 614 [2025-04-26 16:24:07,568 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 711 [2025-04-26 16:24:07,568 INFO L74 IsDeterministic]: Start isDeterministic. Operand 947 states and 2503 transitions. [2025-04-26 16:24:07,568 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-04-26 16:24:07,569 INFO L218 hiAutomatonCegarLoop]: Abstraction has 947 states and 2503 transitions. [2025-04-26 16:24:07,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 947 states and 2503 transitions. [2025-04-26 16:24:07,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 947 to 560. [2025-04-26 16:24:07,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 560 states, 560 states have (on average 2.675) internal successors, (in total 1498), 559 states have internal predecessors, (1498), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:24:07,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 1498 transitions. [2025-04-26 16:24:07,586 INFO L240 hiAutomatonCegarLoop]: Abstraction has 560 states and 1498 transitions. [2025-04-26 16:24:07,586 INFO L438 stractBuchiCegarLoop]: Abstraction has 560 states and 1498 transitions. [2025-04-26 16:24:07,586 INFO L340 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2025-04-26 16:24:07,586 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand 560 states and 1498 transitions. [2025-04-26 16:24:07,589 INFO L131 ngComponentsAnalysis]: Automaton has 74 accepting balls. 216 [2025-04-26 16:24:07,589 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 16:24:07,589 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 16:24:07,589 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2025-04-26 16:24:07,589 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-04-26 16:24:07,590 INFO L752 eck$LassoCheckResult]: Stem: "[155] $Ultimate##0-->$Ultimate##0: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" "[158] L16-->$Ultimate##0: Formula: (and (= 2 v_thread2Thread1of1ForFork1_thidvar1_2) (= 2 v_thread2Thread1of1ForFork1_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_2, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_thidvar0, thread2Thread1of1ForFork1_thidvar1]" "[140] $Ultimate##0-->L71: Formula: (< v_b_8 1) InVars {b=v_b_8} OutVars{b=v_b_8} AuxVars[] AssignedVars[]" "[142] L71-->L75-2: Formula: (= (+ v_t_7 1) 0) InVars {} OutVars{t=v_t_7} AuxVars[] AssignedVars[t]" [2025-04-26 16:24:07,590 INFO L754 eck$LassoCheckResult]: Loop: "[144] L75-2-->L75: Formula: (<= v_x2_2 v_n_6) InVars {x2=v_x2_2, n=v_n_6} OutVars{x2=v_x2_2, n=v_n_6} AuxVars[] AssignedVars[]" "[148] L75-->L81: Formula: (< v_b_10 1) InVars {b=v_b_10} OutVars{b=v_b_10} AuxVars[] AssignedVars[]" "[152] L81-->L75-2: Formula: (= v_x2_6 (+ v_x2_5 v_t_9)) InVars {t=v_t_9, x2=v_x2_6} OutVars{t=v_t_9, x2=v_x2_5} AuxVars[] AssignedVars[x2]" [2025-04-26 16:24:07,590 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:24:07,590 INFO L85 PathProgramCache]: Analyzing trace with hash 5697446, now seen corresponding path program 1 times [2025-04-26 16:24:07,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:24:07,590 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395056339] [2025-04-26 16:24:07,590 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:24:07,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:24:07,592 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-26 16:24:07,593 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-26 16:24:07,593 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:07,593 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:07,593 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:24:07,594 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-26 16:24:07,595 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-26 16:24:07,595 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:07,595 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:07,596 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:24:07,596 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:24:07,596 INFO L85 PathProgramCache]: Analyzing trace with hash 172915, now seen corresponding path program 1 times [2025-04-26 16:24:07,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:24:07,596 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931631015] [2025-04-26 16:24:07,596 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:24:07,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:24:07,597 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:24:07,598 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:24:07,598 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:07,598 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:07,598 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:24:07,599 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:24:07,599 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:24:07,600 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:07,600 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:07,600 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:24:07,600 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:24:07,601 INFO L85 PathProgramCache]: Analyzing trace with hash -2065934930, now seen corresponding path program 1 times [2025-04-26 16:24:07,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:24:07,601 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606790066] [2025-04-26 16:24:07,601 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:24:07,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:24:07,602 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-04-26 16:24:07,603 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-04-26 16:24:07,603 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:07,603 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:07,604 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:24:07,604 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-04-26 16:24:07,605 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-04-26 16:24:07,605 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:07,605 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:07,607 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:24:07,641 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:24:07,641 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:24:07,641 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:24:07,641 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:24:07,642 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-04-26 16:24:07,642 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:07,642 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:24:07,642 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:24:07,642 INFO L132 ssoRankerPreferences]: Filename of dumped script: adfg_2_seq_1.c.bpl_petrified1_Iteration5_Lasso [2025-04-26 16:24:07,642 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:24:07,642 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:24:07,642 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:07,644 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:07,646 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:07,649 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:07,651 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:07,689 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:24:07,689 INFO L367 LassoAnalysis]: Checking for nontermination... [2025-04-26 16:24:07,689 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:07,689 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:07,691 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) [2025-04-26 16:24:07,691 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 [2025-04-26 16:24:07,692 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:24:07,692 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:24:07,703 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 16:24:07,703 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {thread2Thread1of1ForFork1_thidvar0=0} Honda state: {thread2Thread1of1ForFork1_thidvar0=2} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-04-26 16:24:07,709 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2025-04-26 16:24:07,710 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:07,710 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:07,711 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) [2025-04-26 16:24:07,713 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 [2025-04-26 16:24:07,713 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:24:07,713 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:24:07,725 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 16:24:07,726 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {thread2Thread1of1ForFork1_thidvar1=0} Honda state: {thread2Thread1of1ForFork1_thidvar1=2} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-04-26 16:24:07,731 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2025-04-26 16:24:07,731 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:07,731 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:07,733 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) [2025-04-26 16:24:07,733 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 [2025-04-26 16:24:07,735 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:24:07,735 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:24:07,753 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 16:24:07,754 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {b=0} Honda state: {b=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-04-26 16:24:07,760 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 [2025-04-26 16:24:07,760 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:07,760 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:07,762 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) [2025-04-26 16:24:07,762 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 [2025-04-26 16:24:07,763 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:24:07,763 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:24:07,775 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 16:24:07,775 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {thread1Thread1of1ForFork0_thidvar0=0} Honda state: {thread1Thread1of1ForFork0_thidvar0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-04-26 16:24:07,781 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 [2025-04-26 16:24:07,782 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:07,782 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:07,783 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) [2025-04-26 16:24:07,785 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 [2025-04-26 16:24:07,786 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:24:07,786 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:24:07,804 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 [2025-04-26 16:24:07,804 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:07,804 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:07,806 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) [2025-04-26 16:24:07,807 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 [2025-04-26 16:24:07,809 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 16:24:07,809 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:24:07,931 INFO L407 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-04-26 16:24:07,938 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 [2025-04-26 16:24:07,938 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:24:07,938 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:24:07,938 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:24:07,938 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:24:07,938 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-04-26 16:24:07,938 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:07,938 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:24:07,938 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:24:07,938 INFO L132 ssoRankerPreferences]: Filename of dumped script: adfg_2_seq_1.c.bpl_petrified1_Iteration5_Lasso [2025-04-26 16:24:07,938 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:24:07,938 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:24:07,939 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:07,945 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:07,948 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:07,950 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:07,953 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:07,988 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:24:07,988 INFO L453 LassoAnalysis]: Using template 'affine'. [2025-04-26 16:24:07,988 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:07,988 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:07,992 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:24:07,993 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2025-04-26 16:24:07,993 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-04-26 16:24:08,004 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:24:08,004 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:24:08,004 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:24:08,004 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:24:08,006 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-04-26 16:24:08,006 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-04-26 16:24:08,010 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-04-26 16:24:08,014 INFO L436 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2025-04-26 16:24:08,014 INFO L437 ModelExtractionUtils]: 6 out of 13 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-04-26 16:24:08,014 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:08,014 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:08,016 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:24:08,016 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2025-04-26 16:24:08,017 INFO L436 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-04-26 16:24:08,033 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Ended with exit code 0 [2025-04-26 16:24:08,033 INFO L439 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2025-04-26 16:24:08,033 INFO L476 LassoAnalysis]: Proved termination. [2025-04-26 16:24:08,033 INFO L478 LassoAnalysis]: Termination argument consisting of: Ranking function f(n, x2) = 2*n - 2*x2 + 1 Supporting invariants [-1*t - 1 >= 0] [2025-04-26 16:24:08,038 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2025-04-26 16:24:08,040 INFO L156 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2025-04-26 16:24:08,057 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:24:08,060 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-26 16:24:08,061 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-26 16:24:08,062 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:08,062 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:24:08,062 INFO L256 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-04-26 16:24:08,062 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:24:08,077 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:24:08,081 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:24:08,082 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:08,082 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:24:08,082 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-04-26 16:24:08,082 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:24:08,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-26 16:24:08,103 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2025-04-26 16:24:08,103 INFO L70 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 560 states and 1498 transitions. cyclomatic complexity: 1048 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (in total 7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:24:08,176 INFO L74 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 560 states and 1498 transitions. cyclomatic complexity: 1048. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (in total 7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) Result 1103 states and 2989 transitions. Complement of second has 7 states. [2025-04-26 16:24:08,176 INFO L140 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2025-04-26 16:24:08,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (in total 7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:24:08,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 102 transitions. [2025-04-26 16:24:08,177 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 102 transitions. Stem has 4 letters. Loop has 3 letters. [2025-04-26 16:24:08,177 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:24:08,177 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 102 transitions. Stem has 7 letters. Loop has 3 letters. [2025-04-26 16:24:08,177 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:24:08,177 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 102 transitions. Stem has 4 letters. Loop has 6 letters. [2025-04-26 16:24:08,177 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:24:08,178 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1103 states and 2989 transitions. [2025-04-26 16:24:08,185 INFO L131 ngComponentsAnalysis]: Automaton has 122 accepting balls. 367 [2025-04-26 16:24:08,191 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1103 states to 972 states and 2599 transitions. [2025-04-26 16:24:08,191 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 593 [2025-04-26 16:24:08,192 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 644 [2025-04-26 16:24:08,192 INFO L74 IsDeterministic]: Start isDeterministic. Operand 972 states and 2599 transitions. [2025-04-26 16:24:08,192 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-04-26 16:24:08,192 INFO L218 hiAutomatonCegarLoop]: Abstraction has 972 states and 2599 transitions. [2025-04-26 16:24:08,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 972 states and 2599 transitions. [2025-04-26 16:24:08,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 972 to 747. [2025-04-26 16:24:08,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 747 states, 747 states have (on average 2.7322623828647923) internal successors, (in total 2041), 746 states have internal predecessors, (2041), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:24:08,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 747 states to 747 states and 2041 transitions. [2025-04-26 16:24:08,212 INFO L240 hiAutomatonCegarLoop]: Abstraction has 747 states and 2041 transitions. [2025-04-26 16:24:08,212 INFO L438 stractBuchiCegarLoop]: Abstraction has 747 states and 2041 transitions. [2025-04-26 16:24:08,212 INFO L340 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2025-04-26 16:24:08,213 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand 747 states and 2041 transitions. [2025-04-26 16:24:08,216 INFO L131 ngComponentsAnalysis]: Automaton has 82 accepting balls. 237 [2025-04-26 16:24:08,216 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 16:24:08,216 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 16:24:08,217 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2025-04-26 16:24:08,217 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-04-26 16:24:08,217 INFO L752 eck$LassoCheckResult]: Stem: "[155] $Ultimate##0-->$Ultimate##0: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" "[118] $Ultimate##0-->L27: Formula: (<= 1 v_b_1) InVars {b=v_b_1} OutVars{b=v_b_1} AuxVars[] AssignedVars[]" "[120] L27-->L35-2: Formula: (= v_t_1 1) InVars {} OutVars{t=v_t_1} AuxVars[] AssignedVars[t]" "[122] L35-2-->L44: Formula: (< v_n_3 v_x1_6) InVars {x1=v_x1_6, n=v_n_3} OutVars{x1=v_x1_6, n=v_n_3} AuxVars[] AssignedVars[]" "[124] L44-->L47-2: Formula: (= v_t1_2 v_t_5) InVars {t=v_t_5} OutVars{t1=v_t1_2, t=v_t_5} AuxVars[] AssignedVars[t1]" [2025-04-26 16:24:08,217 INFO L754 eck$LassoCheckResult]: Loop: "[128] L47-2-->L47: Formula: (<= v_x3_4 v_n_4) InVars {n=v_n_4, x3=v_x3_4} OutVars{n=v_n_4, x3=v_x3_4} AuxVars[] AssignedVars[]" "[133] L47-->L49: Formula: (<= 1 v_b_5) InVars {b=v_b_5} OutVars{b=v_b_5} AuxVars[] AssignedVars[]" "[137] L49-->L47-2: Formula: (= v_x3_5 (+ v_x3_6 v_t1_3)) InVars {t1=v_t1_3, x3=v_x3_6} OutVars{t1=v_t1_3, x3=v_x3_5} AuxVars[] AssignedVars[x3]" [2025-04-26 16:24:08,217 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:24:08,218 INFO L85 PathProgramCache]: Analyzing trace with hash 175409470, now seen corresponding path program 1 times [2025-04-26 16:24:08,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:24:08,218 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267199500] [2025-04-26 16:24:08,218 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:24:08,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:24:08,220 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-04-26 16:24:08,221 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-04-26 16:24:08,221 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:08,221 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:08,221 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:24:08,222 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-04-26 16:24:08,224 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-04-26 16:24:08,224 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:08,224 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:08,224 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:24:08,225 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:24:08,225 INFO L85 PathProgramCache]: Analyzing trace with hash 157059, now seen corresponding path program 1 times [2025-04-26 16:24:08,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:24:08,225 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486715564] [2025-04-26 16:24:08,225 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:24:08,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:24:08,226 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:24:08,227 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:24:08,227 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:08,227 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:08,227 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:24:08,228 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:24:08,228 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:24:08,228 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:08,229 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:08,229 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:24:08,229 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:24:08,230 INFO L85 PathProgramCache]: Analyzing trace with hash -1351551194, now seen corresponding path program 1 times [2025-04-26 16:24:08,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:24:08,230 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346092224] [2025-04-26 16:24:08,230 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:24:08,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:24:08,231 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-04-26 16:24:08,232 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-04-26 16:24:08,233 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:08,233 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:08,233 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:24:08,233 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-04-26 16:24:08,234 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-04-26 16:24:08,235 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:08,235 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:08,235 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:24:08,279 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:24:08,279 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:24:08,279 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:24:08,279 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:24:08,279 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-04-26 16:24:08,279 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:08,279 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:24:08,279 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:24:08,279 INFO L132 ssoRankerPreferences]: Filename of dumped script: adfg_2_seq_1.c.bpl_petrified1_Iteration6_Lasso [2025-04-26 16:24:08,279 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:24:08,279 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:24:08,280 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:08,282 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:08,284 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:08,287 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:08,322 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:24:08,322 INFO L367 LassoAnalysis]: Checking for nontermination... [2025-04-26 16:24:08,322 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:08,322 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:08,324 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:24:08,325 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2025-04-26 16:24:08,325 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:24:08,325 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:24:08,336 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 16:24:08,337 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {t=0} Honda state: {t=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-04-26 16:24:08,342 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Ended with exit code 0 [2025-04-26 16:24:08,342 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:08,342 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:08,344 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:24:08,345 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2025-04-26 16:24:08,346 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:24:08,346 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:24:08,357 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 16:24:08,357 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {thread1Thread1of1ForFork0_thidvar0=0} Honda state: {thread1Thread1of1ForFork0_thidvar0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-04-26 16:24:08,363 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Ended with exit code 0 [2025-04-26 16:24:08,363 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:08,364 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:08,365 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:24:08,366 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2025-04-26 16:24:08,367 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:24:08,367 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:24:08,384 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 16:24:08,384 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {b=1} Honda state: {b=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-04-26 16:24:08,389 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Ended with exit code 0 [2025-04-26 16:24:08,389 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:08,389 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:08,391 INFO L229 MonitoredProcess]: Starting monitored process 36 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:24:08,392 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2025-04-26 16:24:08,393 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:24:08,393 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:24:08,409 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Ended with exit code 0 [2025-04-26 16:24:08,410 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:08,410 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:08,411 INFO L229 MonitoredProcess]: Starting monitored process 37 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:24:08,412 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2025-04-26 16:24:08,413 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 16:24:08,413 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:24:08,548 INFO L407 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-04-26 16:24:08,554 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Ended with exit code 0 [2025-04-26 16:24:08,554 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:24:08,554 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:24:08,554 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:24:08,554 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:24:08,554 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-04-26 16:24:08,554 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:08,554 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:24:08,554 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:24:08,554 INFO L132 ssoRankerPreferences]: Filename of dumped script: adfg_2_seq_1.c.bpl_petrified1_Iteration6_Lasso [2025-04-26 16:24:08,554 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:24:08,554 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:24:08,555 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:08,561 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:08,564 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:08,568 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:08,601 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:24:08,602 INFO L453 LassoAnalysis]: Using template 'affine'. [2025-04-26 16:24:08,602 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:08,602 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:08,604 INFO L229 MonitoredProcess]: Starting monitored process 38 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:24:08,606 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2025-04-26 16:24:08,607 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-04-26 16:24:08,617 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:24:08,617 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:24:08,617 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:24:08,617 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:24:08,618 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-04-26 16:24:08,618 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-04-26 16:24:08,621 INFO L490 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-04-26 16:24:08,627 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Ended with exit code 0 [2025-04-26 16:24:08,628 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:08,628 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:08,630 INFO L229 MonitoredProcess]: Starting monitored process 39 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:24:08,631 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2025-04-26 16:24:08,633 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-04-26 16:24:08,643 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:24:08,644 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:24:08,644 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:24:08,644 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:24:08,645 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-04-26 16:24:08,645 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-04-26 16:24:08,648 INFO L490 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-04-26 16:24:08,653 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 [2025-04-26 16:24:08,653 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:08,653 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:08,655 INFO L229 MonitoredProcess]: Starting monitored process 40 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:24:08,656 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2025-04-26 16:24:08,657 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-04-26 16:24:08,666 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:24:08,666 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:24:08,666 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:24:08,666 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:24:08,667 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-04-26 16:24:08,667 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-04-26 16:24:08,670 INFO L490 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-04-26 16:24:08,676 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Ended with exit code 0 [2025-04-26 16:24:08,676 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:08,676 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:08,678 INFO L229 MonitoredProcess]: Starting monitored process 41 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:24:08,680 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2025-04-26 16:24:08,680 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-04-26 16:24:08,690 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:24:08,690 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:24:08,690 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:24:08,690 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:24:08,692 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-04-26 16:24:08,692 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-04-26 16:24:08,696 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-04-26 16:24:08,702 INFO L436 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2025-04-26 16:24:08,702 INFO L437 ModelExtractionUtils]: 9 out of 16 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-04-26 16:24:08,702 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:08,702 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:08,704 INFO L229 MonitoredProcess]: Starting monitored process 42 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:24:08,705 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2025-04-26 16:24:08,707 INFO L436 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-04-26 16:24:08,723 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Forceful destruction successful, exit code 0 [2025-04-26 16:24:08,723 INFO L439 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2025-04-26 16:24:08,724 INFO L476 LassoAnalysis]: Proved termination. [2025-04-26 16:24:08,724 INFO L478 LassoAnalysis]: Termination argument consisting of: Ranking function f(n, x3) = 2*n - 2*x3 + 1 Supporting invariants [1*t1 - 1 >= 0] [2025-04-26 16:24:08,730 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Ended with exit code 0 [2025-04-26 16:24:08,735 INFO L156 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2025-04-26 16:24:08,754 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:24:08,758 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-04-26 16:24:08,759 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-04-26 16:24:08,759 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:08,759 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:24:08,759 INFO L256 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-04-26 16:24:08,759 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:24:08,777 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:24:08,777 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:24:08,778 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:08,778 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:24:08,778 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-04-26 16:24:08,778 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:24:08,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-26 16:24:08,799 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2025-04-26 16:24:08,799 INFO L70 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 747 states and 2041 transitions. cyclomatic complexity: 1432 Second operand has 4 states, 4 states have (on average 2.0) internal successors, (in total 8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:24:08,881 INFO L74 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 747 states and 2041 transitions. cyclomatic complexity: 1432. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (in total 8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) Result 1423 states and 3963 transitions. Complement of second has 9 states. [2025-04-26 16:24:08,881 INFO L140 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 2 stem states 2 non-accepting loop states 2 accepting loop states [2025-04-26 16:24:08,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.0) internal successors, (in total 8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:24:08,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 108 transitions. [2025-04-26 16:24:08,882 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 6 states and 108 transitions. Stem has 5 letters. Loop has 3 letters. [2025-04-26 16:24:08,882 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:24:08,882 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 6 states and 108 transitions. Stem has 8 letters. Loop has 3 letters. [2025-04-26 16:24:08,882 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:24:08,882 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 6 states and 108 transitions. Stem has 5 letters. Loop has 6 letters. [2025-04-26 16:24:08,882 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:24:08,882 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1423 states and 3963 transitions. [2025-04-26 16:24:08,892 INFO L131 ngComponentsAnalysis]: Automaton has 108 accepting balls. 296 [2025-04-26 16:24:08,899 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1423 states to 1186 states and 3224 transitions. [2025-04-26 16:24:08,899 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 626 [2025-04-26 16:24:08,900 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 745 [2025-04-26 16:24:08,900 INFO L74 IsDeterministic]: Start isDeterministic. Operand 1186 states and 3224 transitions. [2025-04-26 16:24:08,901 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-04-26 16:24:08,901 INFO L218 hiAutomatonCegarLoop]: Abstraction has 1186 states and 3224 transitions. [2025-04-26 16:24:08,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1186 states and 3224 transitions. [2025-04-26 16:24:08,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1186 to 826. [2025-04-26 16:24:08,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 826 states, 826 states have (on average 2.761501210653753) internal successors, (in total 2281), 825 states have internal predecessors, (2281), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:24:08,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 826 states to 826 states and 2281 transitions. [2025-04-26 16:24:08,932 INFO L240 hiAutomatonCegarLoop]: Abstraction has 826 states and 2281 transitions. [2025-04-26 16:24:08,932 INFO L438 stractBuchiCegarLoop]: Abstraction has 826 states and 2281 transitions. [2025-04-26 16:24:08,932 INFO L340 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2025-04-26 16:24:08,932 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand 826 states and 2281 transitions. [2025-04-26 16:24:08,936 INFO L131 ngComponentsAnalysis]: Automaton has 75 accepting balls. 211 [2025-04-26 16:24:08,936 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 16:24:08,936 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 16:24:08,936 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2025-04-26 16:24:08,936 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-04-26 16:24:08,937 INFO L752 eck$LassoCheckResult]: Stem: "[155] $Ultimate##0-->$Ultimate##0: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" "[119] $Ultimate##0-->L31: Formula: (< v_b_2 1) InVars {b=v_b_2} OutVars{b=v_b_2} AuxVars[] AssignedVars[]" "[121] L31-->L35-2: Formula: (= (+ v_t_2 1) 0) InVars {} OutVars{t=v_t_2} AuxVars[] AssignedVars[t]" "[122] L35-2-->L44: Formula: (< v_n_3 v_x1_6) InVars {x1=v_x1_6, n=v_n_3} OutVars{x1=v_x1_6, n=v_n_3} AuxVars[] AssignedVars[]" "[124] L44-->L47-2: Formula: (= v_t1_2 v_t_5) InVars {t=v_t_5} OutVars{t1=v_t1_2, t=v_t_5} AuxVars[] AssignedVars[t1]" [2025-04-26 16:24:08,937 INFO L754 eck$LassoCheckResult]: Loop: "[128] L47-2-->L47: Formula: (<= v_x3_4 v_n_4) InVars {n=v_n_4, x3=v_x3_4} OutVars{n=v_n_4, x3=v_x3_4} AuxVars[] AssignedVars[]" "[134] L47-->L53: Formula: (< v_b_6 1) InVars {b=v_b_6} OutVars{b=v_b_6} AuxVars[] AssignedVars[]" "[138] L53-->L47-2: Formula: (= (+ v_x3_1 v_t1_1) v_x3_2) InVars {t1=v_t1_1, x3=v_x3_2} OutVars{t1=v_t1_1, x3=v_x3_1} AuxVars[] AssignedVars[x3]" [2025-04-26 16:24:08,937 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:24:08,937 INFO L85 PathProgramCache]: Analyzing trace with hash 175440222, now seen corresponding path program 1 times [2025-04-26 16:24:08,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:24:08,937 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481957936] [2025-04-26 16:24:08,937 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:24:08,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:24:08,939 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-04-26 16:24:08,940 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-04-26 16:24:08,940 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:08,940 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:08,940 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:24:08,942 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-04-26 16:24:08,943 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-04-26 16:24:08,944 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:08,944 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:08,945 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:24:08,945 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:24:08,945 INFO L85 PathProgramCache]: Analyzing trace with hash 157091, now seen corresponding path program 1 times [2025-04-26 16:24:08,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:24:08,945 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99051611] [2025-04-26 16:24:08,945 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:24:08,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:24:08,948 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:24:08,949 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:24:08,949 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:08,949 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:08,949 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:24:08,949 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:24:08,950 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:24:08,950 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:08,950 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:08,950 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:24:08,951 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:24:08,951 INFO L85 PathProgramCache]: Analyzing trace with hash -435418330, now seen corresponding path program 1 times [2025-04-26 16:24:08,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:24:08,951 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929303731] [2025-04-26 16:24:08,951 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:24:08,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:24:08,952 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-04-26 16:24:08,953 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-04-26 16:24:08,953 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:08,953 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:08,953 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:24:08,954 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-04-26 16:24:08,955 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-04-26 16:24:08,955 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:08,955 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:08,958 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:24:08,993 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:24:08,993 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:24:08,993 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:24:08,993 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:24:08,993 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-04-26 16:24:08,993 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:08,993 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:24:08,994 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:24:08,994 INFO L132 ssoRankerPreferences]: Filename of dumped script: adfg_2_seq_1.c.bpl_petrified1_Iteration7_Lasso [2025-04-26 16:24:08,994 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:24:08,994 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:24:08,994 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:08,997 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:08,999 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:09,002 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:09,041 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:24:09,041 INFO L367 LassoAnalysis]: Checking for nontermination... [2025-04-26 16:24:09,041 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:09,041 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:09,043 INFO L229 MonitoredProcess]: Starting monitored process 43 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:24:09,043 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2025-04-26 16:24:09,044 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:24:09,044 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:24:09,061 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 16:24:09,061 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {t=0} Honda state: {t=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-04-26 16:24:09,067 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Ended with exit code 0 [2025-04-26 16:24:09,067 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:09,067 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:09,069 INFO L229 MonitoredProcess]: Starting monitored process 44 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:24:09,070 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2025-04-26 16:24:09,070 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:24:09,070 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:24:09,081 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 16:24:09,082 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {thread1Thread1of1ForFork0_thidvar0=0} Honda state: {thread1Thread1of1ForFork0_thidvar0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-04-26 16:24:09,087 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Ended with exit code 0 [2025-04-26 16:24:09,087 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:09,087 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:09,089 INFO L229 MonitoredProcess]: Starting monitored process 45 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:24:09,089 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2025-04-26 16:24:09,090 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:24:09,090 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:24:09,107 INFO L400 LassoAnalysis]: Proved nontermination for one component. [2025-04-26 16:24:09,107 INFO L403 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {b=0} Honda state: {b=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-04-26 16:24:09,113 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Ended with exit code 0 [2025-04-26 16:24:09,113 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:09,113 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:09,115 INFO L229 MonitoredProcess]: Starting monitored process 46 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:24:09,115 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2025-04-26 16:24:09,116 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:24:09,116 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:24:09,135 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Ended with exit code 0 [2025-04-26 16:24:09,136 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:09,136 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:09,137 INFO L229 MonitoredProcess]: Starting monitored process 47 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:24:09,139 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2025-04-26 16:24:09,140 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 16:24:09,140 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:24:09,269 INFO L407 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-04-26 16:24:09,274 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Ended with exit code 0 [2025-04-26 16:24:09,275 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:24:09,275 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:24:09,275 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:24:09,275 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:24:09,275 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-04-26 16:24:09,275 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:09,275 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:24:09,275 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:24:09,275 INFO L132 ssoRankerPreferences]: Filename of dumped script: adfg_2_seq_1.c.bpl_petrified1_Iteration7_Lasso [2025-04-26 16:24:09,275 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:24:09,275 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:24:09,276 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:09,283 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:09,285 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:09,287 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:09,324 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:24:09,324 INFO L453 LassoAnalysis]: Using template 'affine'. [2025-04-26 16:24:09,324 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:09,324 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:09,326 INFO L229 MonitoredProcess]: Starting monitored process 48 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:24:09,328 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2025-04-26 16:24:09,328 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-04-26 16:24:09,338 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:24:09,338 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:24:09,338 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:24:09,338 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:24:09,339 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-04-26 16:24:09,339 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-04-26 16:24:09,370 INFO L490 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-04-26 16:24:09,375 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Forceful destruction successful, exit code 0 [2025-04-26 16:24:09,375 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:09,375 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:09,403 INFO L229 MonitoredProcess]: Starting monitored process 49 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:24:09,404 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2025-04-26 16:24:09,405 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-04-26 16:24:09,414 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:24:09,415 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:24:09,415 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:24:09,415 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:24:09,416 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-04-26 16:24:09,416 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-04-26 16:24:09,418 INFO L490 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-04-26 16:24:09,423 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Ended with exit code 0 [2025-04-26 16:24:09,423 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:09,423 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:09,424 INFO L229 MonitoredProcess]: Starting monitored process 50 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:24:09,425 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2025-04-26 16:24:09,426 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-04-26 16:24:09,436 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:24:09,437 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:24:09,437 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:24:09,437 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:24:09,437 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-04-26 16:24:09,437 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-04-26 16:24:09,440 INFO L490 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-04-26 16:24:09,445 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Ended with exit code 0 [2025-04-26 16:24:09,445 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:09,446 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:09,447 INFO L229 MonitoredProcess]: Starting monitored process 51 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:24:09,449 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2025-04-26 16:24:09,450 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-04-26 16:24:09,460 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:24:09,460 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:24:09,460 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:24:09,460 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:24:09,462 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-04-26 16:24:09,462 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-04-26 16:24:09,466 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-04-26 16:24:09,473 INFO L436 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2025-04-26 16:24:09,473 INFO L437 ModelExtractionUtils]: 9 out of 16 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-04-26 16:24:09,473 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:09,474 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:09,475 INFO L229 MonitoredProcess]: Starting monitored process 52 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:24:09,477 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2025-04-26 16:24:09,477 INFO L436 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-04-26 16:24:09,493 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Forceful destruction successful, exit code 0 [2025-04-26 16:24:09,493 INFO L439 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2025-04-26 16:24:09,493 INFO L476 LassoAnalysis]: Proved termination. [2025-04-26 16:24:09,493 INFO L478 LassoAnalysis]: Termination argument consisting of: Ranking function f(n, x3) = 2*n - 2*x3 + 1 Supporting invariants [-1*t1 - 1 >= 0] [2025-04-26 16:24:09,499 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Forceful destruction successful, exit code 0 [2025-04-26 16:24:09,501 INFO L156 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2025-04-26 16:24:09,516 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:24:09,520 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-04-26 16:24:09,521 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-04-26 16:24:09,521 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:09,521 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:24:09,521 INFO L256 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-04-26 16:24:09,521 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:24:09,538 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:24:09,539 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:24:09,539 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:09,539 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:24:09,540 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-04-26 16:24:09,540 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:24:09,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-26 16:24:09,562 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2025-04-26 16:24:09,562 INFO L70 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 826 states and 2281 transitions. cyclomatic complexity: 1602 Second operand has 4 states, 4 states have (on average 2.0) internal successors, (in total 8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:24:09,649 INFO L74 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 826 states and 2281 transitions. cyclomatic complexity: 1602. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (in total 8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) Result 1364 states and 3775 transitions. Complement of second has 9 states. [2025-04-26 16:24:09,650 INFO L140 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 2 stem states 2 non-accepting loop states 2 accepting loop states [2025-04-26 16:24:09,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.0) internal successors, (in total 8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:24:09,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 99 transitions. [2025-04-26 16:24:09,651 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 6 states and 99 transitions. Stem has 5 letters. Loop has 3 letters. [2025-04-26 16:24:09,651 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:24:09,651 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 6 states and 99 transitions. Stem has 8 letters. Loop has 3 letters. [2025-04-26 16:24:09,651 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:24:09,651 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 6 states and 99 transitions. Stem has 5 letters. Loop has 6 letters. [2025-04-26 16:24:09,651 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:24:09,651 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1364 states and 3775 transitions. [2025-04-26 16:24:09,662 INFO L131 ngComponentsAnalysis]: Automaton has 105 accepting balls. 289 [2025-04-26 16:24:09,670 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1364 states to 1233 states and 3393 transitions. [2025-04-26 16:24:09,671 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 618 [2025-04-26 16:24:09,672 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 706 [2025-04-26 16:24:09,672 INFO L74 IsDeterministic]: Start isDeterministic. Operand 1233 states and 3393 transitions. [2025-04-26 16:24:09,672 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-04-26 16:24:09,672 INFO L218 hiAutomatonCegarLoop]: Abstraction has 1233 states and 3393 transitions. [2025-04-26 16:24:09,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1233 states and 3393 transitions. [2025-04-26 16:24:09,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1233 to 1002. [2025-04-26 16:24:09,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1002 states, 1002 states have (on average 2.7704590818363273) internal successors, (in total 2776), 1001 states have internal predecessors, (2776), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:24:09,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1002 states to 1002 states and 2776 transitions. [2025-04-26 16:24:09,690 INFO L240 hiAutomatonCegarLoop]: Abstraction has 1002 states and 2776 transitions. [2025-04-26 16:24:09,690 INFO L438 stractBuchiCegarLoop]: Abstraction has 1002 states and 2776 transitions. [2025-04-26 16:24:09,690 INFO L340 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2025-04-26 16:24:09,690 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand 1002 states and 2776 transitions. [2025-04-26 16:24:09,694 INFO L131 ngComponentsAnalysis]: Automaton has 85 accepting balls. 240 [2025-04-26 16:24:09,695 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 16:24:09,695 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 16:24:09,695 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2025-04-26 16:24:09,695 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-04-26 16:24:09,695 INFO L752 eck$LassoCheckResult]: Stem: "[155] $Ultimate##0-->$Ultimate##0: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" "[158] L16-->$Ultimate##0: Formula: (and (= 2 v_thread2Thread1of1ForFork1_thidvar1_2) (= 2 v_thread2Thread1of1ForFork1_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_2, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_thidvar0, thread2Thread1of1ForFork1_thidvar1]" "[139] $Ultimate##0-->L67: Formula: (<= 1 v_b_7) InVars {b=v_b_7} OutVars{b=v_b_7} AuxVars[] AssignedVars[]" "[141] L67-->L75-2: Formula: (= v_t_6 1) InVars {} OutVars{t=v_t_6} AuxVars[] AssignedVars[t]" "[143] L75-2-->L84-1: Formula: (< v_n_5 v_x2_1) InVars {x2=v_x2_1, n=v_n_5} OutVars{x2=v_x2_1, n=v_n_5} AuxVars[] AssignedVars[]" [2025-04-26 16:24:09,695 INFO L754 eck$LassoCheckResult]: Loop: "[146] L84-1-->L86: Formula: (< v_z2_1 0) InVars {z2=v_z2_1} OutVars{z2=v_z2_1} AuxVars[] AssignedVars[]" "[150] L86-->L84-1: Formula: (= v_z2_2 (+ v_z2_3 1)) InVars {z2=v_z2_3} OutVars{z2=v_z2_2} AuxVars[] AssignedVars[z2]" [2025-04-26 16:24:09,696 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:24:09,696 INFO L85 PathProgramCache]: Analyzing trace with hash 176619977, now seen corresponding path program 1 times [2025-04-26 16:24:09,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:24:09,696 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337962657] [2025-04-26 16:24:09,696 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:24:09,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:24:09,699 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-04-26 16:24:09,700 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-04-26 16:24:09,701 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:09,701 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:09,701 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:24:09,701 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-04-26 16:24:09,704 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-04-26 16:24:09,704 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:09,704 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:09,705 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:24:09,705 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:24:09,705 INFO L85 PathProgramCache]: Analyzing trace with hash 5637, now seen corresponding path program 1 times [2025-04-26 16:24:09,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:24:09,705 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064078975] [2025-04-26 16:24:09,705 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:24:09,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:24:09,707 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:24:09,707 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:24:09,707 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:09,707 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:09,707 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:24:09,708 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:24:09,708 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:24:09,708 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:09,708 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:09,712 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:24:09,712 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:24:09,712 INFO L85 PathProgramCache]: Analyzing trace with hash -2066889267, now seen corresponding path program 1 times [2025-04-26 16:24:09,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:24:09,712 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246842133] [2025-04-26 16:24:09,712 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:24:09,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:24:09,714 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-04-26 16:24:09,717 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-04-26 16:24:09,717 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:09,717 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:09,717 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:24:09,719 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-04-26 16:24:09,719 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-04-26 16:24:09,720 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:09,720 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:09,723 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:24:09,737 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:24:09,737 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:24:09,738 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:24:09,738 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:24:09,738 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-04-26 16:24:09,738 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:09,738 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:24:09,738 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:24:09,738 INFO L132 ssoRankerPreferences]: Filename of dumped script: adfg_2_seq_1.c.bpl_petrified1_Iteration8_Loop [2025-04-26 16:24:09,738 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:24:09,738 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:24:09,738 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:09,752 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:24:09,752 INFO L367 LassoAnalysis]: Checking for nontermination... [2025-04-26 16:24:09,752 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:09,753 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:09,754 INFO L229 MonitoredProcess]: Starting monitored process 53 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:24:09,755 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Waiting until timeout for monitored process [2025-04-26 16:24:09,756 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:24:09,756 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:24:09,773 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Ended with exit code 0 [2025-04-26 16:24:09,773 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:09,773 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:09,775 INFO L229 MonitoredProcess]: Starting monitored process 54 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:24:09,775 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Waiting until timeout for monitored process [2025-04-26 16:24:09,776 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 16:24:09,776 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:24:09,798 INFO L407 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-04-26 16:24:09,802 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Forceful destruction successful, exit code 0 [2025-04-26 16:24:09,802 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:24:09,802 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:24:09,802 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:24:09,802 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:24:09,802 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-04-26 16:24:09,802 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:09,802 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:24:09,802 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:24:09,802 INFO L132 ssoRankerPreferences]: Filename of dumped script: adfg_2_seq_1.c.bpl_petrified1_Iteration8_Loop [2025-04-26 16:24:09,802 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:24:09,802 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:24:09,803 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:09,817 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:24:09,818 INFO L453 LassoAnalysis]: Using template 'affine'. [2025-04-26 16:24:09,818 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:09,818 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:09,820 INFO L229 MonitoredProcess]: Starting monitored process 55 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:24:09,830 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Waiting until timeout for monitored process [2025-04-26 16:24:09,834 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-04-26 16:24:09,844 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:24:09,844 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-04-26 16:24:09,844 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:24:09,844 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:24:09,845 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:24:09,845 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-04-26 16:24:09,845 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-04-26 16:24:09,847 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-04-26 16:24:09,848 INFO L436 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-04-26 16:24:09,848 INFO L437 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-04-26 16:24:09,849 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:09,849 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:09,850 INFO L229 MonitoredProcess]: Starting monitored process 56 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:24:09,852 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Waiting until timeout for monitored process [2025-04-26 16:24:09,853 INFO L436 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-04-26 16:24:09,856 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Forceful destruction successful, exit code 0 [2025-04-26 16:24:09,856 INFO L439 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-04-26 16:24:09,856 INFO L476 LassoAnalysis]: Proved termination. [2025-04-26 16:24:09,856 INFO L478 LassoAnalysis]: Termination argument consisting of: Ranking function f(z2) = -1*z2 Supporting invariants [] [2025-04-26 16:24:09,862 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Forceful destruction successful, exit code 0 [2025-04-26 16:24:09,863 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-04-26 16:24:09,871 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:24:09,877 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-04-26 16:24:09,878 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-04-26 16:24:09,878 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:09,878 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:24:09,879 INFO L256 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-04-26 16:24:09,879 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:24:09,888 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:24:09,888 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:24:09,889 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:09,889 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:24:09,889 WARN L254 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-04-26 16:24:09,889 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:24:09,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-26 16:24:09,899 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2025-04-26 16:24:09,899 INFO L70 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 1002 states and 2776 transitions. cyclomatic complexity: 1948 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (in total 7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:24:09,928 INFO L74 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 1002 states and 2776 transitions. cyclomatic complexity: 1948. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (in total 7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) Result 1489 states and 4237 transitions. Complement of second has 6 states. [2025-04-26 16:24:09,929 INFO L140 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2025-04-26 16:24:09,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (in total 7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:24:09,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 106 transitions. [2025-04-26 16:24:09,929 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 106 transitions. Stem has 5 letters. Loop has 2 letters. [2025-04-26 16:24:09,929 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:24:09,929 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 106 transitions. Stem has 7 letters. Loop has 2 letters. [2025-04-26 16:24:09,929 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:24:09,930 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 106 transitions. Stem has 5 letters. Loop has 4 letters. [2025-04-26 16:24:09,930 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:24:09,930 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1489 states and 4237 transitions. [2025-04-26 16:24:09,939 INFO L131 ngComponentsAnalysis]: Automaton has 65 accepting balls. 192 [2025-04-26 16:24:09,947 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1489 states to 1203 states and 3408 transitions. [2025-04-26 16:24:09,947 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 502 [2025-04-26 16:24:09,948 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 571 [2025-04-26 16:24:09,948 INFO L74 IsDeterministic]: Start isDeterministic. Operand 1203 states and 3408 transitions. [2025-04-26 16:24:09,948 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-04-26 16:24:09,948 INFO L218 hiAutomatonCegarLoop]: Abstraction has 1203 states and 3408 transitions. [2025-04-26 16:24:09,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1203 states and 3408 transitions. [2025-04-26 16:24:09,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1203 to 1081. [2025-04-26 16:24:09,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1081 states, 1081 states have (on average 2.851063829787234) internal successors, (in total 3082), 1080 states have internal predecessors, (3082), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:24:09,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1081 states to 1081 states and 3082 transitions. [2025-04-26 16:24:09,967 INFO L240 hiAutomatonCegarLoop]: Abstraction has 1081 states and 3082 transitions. [2025-04-26 16:24:09,967 INFO L438 stractBuchiCegarLoop]: Abstraction has 1081 states and 3082 transitions. [2025-04-26 16:24:09,967 INFO L340 stractBuchiCegarLoop]: ======== Iteration 9 ============ [2025-04-26 16:24:09,967 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand 1081 states and 3082 transitions. [2025-04-26 16:24:09,972 INFO L131 ngComponentsAnalysis]: Automaton has 65 accepting balls. 192 [2025-04-26 16:24:09,972 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 16:24:09,972 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 16:24:09,973 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2025-04-26 16:24:09,973 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-04-26 16:24:09,973 INFO L752 eck$LassoCheckResult]: Stem: "[155] $Ultimate##0-->$Ultimate##0: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" "[118] $Ultimate##0-->L27: Formula: (<= 1 v_b_1) InVars {b=v_b_1} OutVars{b=v_b_1} AuxVars[] AssignedVars[]" "[120] L27-->L35-2: Formula: (= v_t_1 1) InVars {} OutVars{t=v_t_1} AuxVars[] AssignedVars[t]" "[122] L35-2-->L44: Formula: (< v_n_3 v_x1_6) InVars {x1=v_x1_6, n=v_n_3} OutVars{x1=v_x1_6, n=v_n_3} AuxVars[] AssignedVars[]" "[124] L44-->L47-2: Formula: (= v_t1_2 v_t_5) InVars {t=v_t_5} OutVars{t1=v_t1_2, t=v_t_5} AuxVars[] AssignedVars[t1]" "[127] L47-2-->L56-1: Formula: (< v_n_1 v_x3_3) InVars {n=v_n_1, x3=v_x3_3} OutVars{n=v_n_1, x3=v_x3_3} AuxVars[] AssignedVars[]" [2025-04-26 16:24:09,973 INFO L754 eck$LassoCheckResult]: Loop: "[132] L56-1-->L58: Formula: (< v_z1_1 0) InVars {z1=v_z1_1} OutVars{z1=v_z1_1} AuxVars[] AssignedVars[]" "[136] L58-->L56-1: Formula: (= v_z1_2 (+ v_z1_3 1)) InVars {z1=v_z1_3} OutVars{z1=v_z1_2} AuxVars[] AssignedVars[z1]" [2025-04-26 16:24:09,973 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:24:09,973 INFO L85 PathProgramCache]: Analyzing trace with hash 1142726401, now seen corresponding path program 1 times [2025-04-26 16:24:09,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:24:09,973 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472393450] [2025-04-26 16:24:09,973 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:24:09,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:24:09,975 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-04-26 16:24:09,976 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-04-26 16:24:09,976 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:09,976 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:09,977 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:24:09,977 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-04-26 16:24:09,978 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-04-26 16:24:09,978 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:09,978 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:09,979 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:24:09,979 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:24:09,979 INFO L85 PathProgramCache]: Analyzing trace with hash 5189, now seen corresponding path program 1 times [2025-04-26 16:24:09,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:24:09,979 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654259076] [2025-04-26 16:24:09,979 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:24:09,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:24:09,980 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:24:09,981 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:24:09,981 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:09,981 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:09,981 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:24:09,981 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:24:09,981 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:24:09,981 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:09,981 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:09,982 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:24:09,982 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:24:09,982 INFO L85 PathProgramCache]: Analyzing trace with hash -1351552187, now seen corresponding path program 1 times [2025-04-26 16:24:09,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:24:09,982 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66198083] [2025-04-26 16:24:09,982 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:24:09,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:24:09,983 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-04-26 16:24:09,984 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-04-26 16:24:09,984 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:09,984 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:09,985 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:24:09,985 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-04-26 16:24:09,986 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-04-26 16:24:09,986 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:09,986 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:09,987 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:24:09,995 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:24:09,995 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:24:09,995 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:24:09,995 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:24:09,995 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-04-26 16:24:09,995 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:09,995 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:24:09,995 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:24:09,995 INFO L132 ssoRankerPreferences]: Filename of dumped script: adfg_2_seq_1.c.bpl_petrified1_Iteration9_Loop [2025-04-26 16:24:09,995 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:24:09,995 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:24:09,996 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:10,010 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:24:10,010 INFO L367 LassoAnalysis]: Checking for nontermination... [2025-04-26 16:24:10,010 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:10,011 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:10,013 INFO L229 MonitoredProcess]: Starting monitored process 57 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:24:10,014 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Waiting until timeout for monitored process [2025-04-26 16:24:10,015 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:24:10,015 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:24:10,032 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Forceful destruction successful, exit code 0 [2025-04-26 16:24:10,032 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:10,033 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:10,034 INFO L229 MonitoredProcess]: Starting monitored process 58 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:24:10,035 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Waiting until timeout for monitored process [2025-04-26 16:24:10,037 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 16:24:10,037 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:24:10,059 INFO L407 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-04-26 16:24:10,063 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Forceful destruction successful, exit code 0 [2025-04-26 16:24:10,064 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:24:10,064 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:24:10,064 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:24:10,064 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:24:10,064 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-04-26 16:24:10,064 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:10,064 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:24:10,064 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:24:10,064 INFO L132 ssoRankerPreferences]: Filename of dumped script: adfg_2_seq_1.c.bpl_petrified1_Iteration9_Loop [2025-04-26 16:24:10,064 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:24:10,064 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:24:10,064 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:10,078 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:24:10,078 INFO L453 LassoAnalysis]: Using template 'affine'. [2025-04-26 16:24:10,078 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:10,078 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:10,080 INFO L229 MonitoredProcess]: Starting monitored process 59 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:24:10,081 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Waiting until timeout for monitored process [2025-04-26 16:24:10,082 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-04-26 16:24:10,092 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:24:10,093 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-04-26 16:24:10,093 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:24:10,093 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:24:10,093 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:24:10,093 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-04-26 16:24:10,093 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-04-26 16:24:10,095 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-04-26 16:24:10,097 INFO L436 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-04-26 16:24:10,097 INFO L437 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-04-26 16:24:10,097 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:10,097 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:10,099 INFO L229 MonitoredProcess]: Starting monitored process 60 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:24:10,100 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Waiting until timeout for monitored process [2025-04-26 16:24:10,101 INFO L436 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-04-26 16:24:10,104 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Forceful destruction successful, exit code 0 [2025-04-26 16:24:10,104 INFO L439 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-04-26 16:24:10,104 INFO L476 LassoAnalysis]: Proved termination. [2025-04-26 16:24:10,104 INFO L478 LassoAnalysis]: Termination argument consisting of: Ranking function f(z1) = -1*z1 Supporting invariants [] [2025-04-26 16:24:10,110 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Ended with exit code 0 [2025-04-26 16:24:10,111 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-04-26 16:24:10,122 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:24:10,125 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-04-26 16:24:10,126 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-04-26 16:24:10,126 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:10,126 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:24:10,126 INFO L256 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-04-26 16:24:10,126 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:24:10,133 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:24:10,134 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:24:10,134 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:10,134 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:24:10,134 WARN L254 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-04-26 16:24:10,134 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:24:10,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-26 16:24:10,142 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2025-04-26 16:24:10,142 INFO L70 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 1081 states and 3082 transitions. cyclomatic complexity: 2175 Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (in total 8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:24:10,168 INFO L74 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 1081 states and 3082 transitions. cyclomatic complexity: 2175. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (in total 8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) Result 1338 states and 3813 transitions. Complement of second has 6 states. [2025-04-26 16:24:10,168 INFO L140 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2025-04-26 16:24:10,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (in total 8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:24:10,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 85 transitions. [2025-04-26 16:24:10,169 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 85 transitions. Stem has 6 letters. Loop has 2 letters. [2025-04-26 16:24:10,169 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:24:10,169 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 85 transitions. Stem has 8 letters. Loop has 2 letters. [2025-04-26 16:24:10,169 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:24:10,169 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 85 transitions. Stem has 6 letters. Loop has 4 letters. [2025-04-26 16:24:10,169 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:24:10,169 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1338 states and 3813 transitions. [2025-04-26 16:24:10,177 INFO L131 ngComponentsAnalysis]: Automaton has 48 accepting balls. 156 [2025-04-26 16:24:10,182 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1338 states to 840 states and 2312 transitions. [2025-04-26 16:24:10,182 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 395 [2025-04-26 16:24:10,183 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 420 [2025-04-26 16:24:10,183 INFO L74 IsDeterministic]: Start isDeterministic. Operand 840 states and 2312 transitions. [2025-04-26 16:24:10,183 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-04-26 16:24:10,183 INFO L218 hiAutomatonCegarLoop]: Abstraction has 840 states and 2312 transitions. [2025-04-26 16:24:10,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 840 states and 2312 transitions. [2025-04-26 16:24:10,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 840 to 798. [2025-04-26 16:24:10,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 798 states, 798 states have (on average 2.7681704260651627) internal successors, (in total 2209), 797 states have internal predecessors, (2209), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:24:10,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 798 states to 798 states and 2209 transitions. [2025-04-26 16:24:10,195 INFO L240 hiAutomatonCegarLoop]: Abstraction has 798 states and 2209 transitions. [2025-04-26 16:24:10,195 INFO L438 stractBuchiCegarLoop]: Abstraction has 798 states and 2209 transitions. [2025-04-26 16:24:10,195 INFO L340 stractBuchiCegarLoop]: ======== Iteration 10 ============ [2025-04-26 16:24:10,195 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand 798 states and 2209 transitions. [2025-04-26 16:24:10,198 INFO L131 ngComponentsAnalysis]: Automaton has 48 accepting balls. 156 [2025-04-26 16:24:10,198 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 16:24:10,198 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 16:24:10,198 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2025-04-26 16:24:10,198 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-04-26 16:24:10,199 INFO L752 eck$LassoCheckResult]: Stem: "[155] $Ultimate##0-->$Ultimate##0: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" "[118] $Ultimate##0-->L27: Formula: (<= 1 v_b_1) InVars {b=v_b_1} OutVars{b=v_b_1} AuxVars[] AssignedVars[]" "[120] L27-->L35-2: Formula: (= v_t_1 1) InVars {} OutVars{t=v_t_1} AuxVars[] AssignedVars[t]" "[123] L35-2-->L35: Formula: (<= v_x1_1 v_n_2) InVars {x1=v_x1_1, n=v_n_2} OutVars{x1=v_x1_1, n=v_n_2} AuxVars[] AssignedVars[]" "[126] L35-->L41: Formula: (< v_b_4 1) InVars {b=v_b_4} OutVars{b=v_b_4} AuxVars[] AssignedVars[]" "[130] L41-->L35-2: Formula: (= (+ v_x1_4 v_t_4) v_x1_5) InVars {x1=v_x1_5, t=v_t_4} OutVars{x1=v_x1_4, t=v_t_4} AuxVars[] AssignedVars[x1]" [2025-04-26 16:24:10,199 INFO L754 eck$LassoCheckResult]: Loop: "[123] L35-2-->L35: Formula: (<= v_x1_1 v_n_2) InVars {x1=v_x1_1, n=v_n_2} OutVars{x1=v_x1_1, n=v_n_2} AuxVars[] AssignedVars[]" "[126] L35-->L41: Formula: (< v_b_4 1) InVars {b=v_b_4} OutVars{b=v_b_4} AuxVars[] AssignedVars[]" "[130] L41-->L35-2: Formula: (= (+ v_x1_4 v_t_4) v_x1_5) InVars {x1=v_x1_5, t=v_t_4} OutVars{x1=v_x1_4, t=v_t_4} AuxVars[] AssignedVars[x1]" [2025-04-26 16:24:10,199 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:24:10,199 INFO L85 PathProgramCache]: Analyzing trace with hash 1142727427, now seen corresponding path program 1 times [2025-04-26 16:24:10,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:24:10,199 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384660606] [2025-04-26 16:24:10,199 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:24:10,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:24:10,201 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-04-26 16:24:10,201 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-04-26 16:24:10,202 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:10,202 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:24:10,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-26 16:24:10,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-26 16:24:10,208 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384660606] [2025-04-26 16:24:10,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [384660606] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-26 16:24:10,208 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-26 16:24:10,208 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-04-26 16:24:10,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829590408] [2025-04-26 16:24:10,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-26 16:24:10,208 INFO L757 eck$LassoCheckResult]: stem already infeasible [2025-04-26 16:24:10,209 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:24:10,209 INFO L85 PathProgramCache]: Analyzing trace with hash 152030, now seen corresponding path program 2 times [2025-04-26 16:24:10,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:24:10,209 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980489710] [2025-04-26 16:24:10,209 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-26 16:24:10,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:24:10,210 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:24:10,211 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:24:10,211 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-04-26 16:24:10,211 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:10,211 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:24:10,211 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:24:10,212 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:24:10,212 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:10,212 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:10,212 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:24:10,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-26 16:24:10,226 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-26 16:24:10,226 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-26 16:24:10,226 INFO L87 Difference]: Start difference. First operand 798 states and 2209 transitions. cyclomatic complexity: 1537 Second operand has 3 states, 3 states have (on average 2.0) internal successors, (in total 6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:24:10,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-26 16:24:10,240 INFO L93 Difference]: Finished difference Result 441 states and 1217 transitions. [2025-04-26 16:24:10,240 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 441 states and 1217 transitions. [2025-04-26 16:24:10,243 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-04-26 16:24:10,243 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 441 states to 0 states and 0 transitions. [2025-04-26 16:24:10,243 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2025-04-26 16:24:10,243 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2025-04-26 16:24:10,243 INFO L74 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2025-04-26 16:24:10,243 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-04-26 16:24:10,243 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-04-26 16:24:10,243 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-04-26 16:24:10,244 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-26 16:24:10,244 INFO L438 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-04-26 16:24:10,244 INFO L340 stractBuchiCegarLoop]: ======== Iteration 11 ============ [2025-04-26 16:24:10,244 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2025-04-26 16:24:10,244 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-04-26 16:24:10,244 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2025-04-26 16:24:10,249 INFO L201 PluginConnector]: Adding new model adfg_2_seq_1.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 26.04 04:24:10 BoogieIcfgContainer [2025-04-26 16:24:10,249 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2025-04-26 16:24:10,250 INFO L158 Benchmark]: Toolchain (without parser) took 5817.76ms. Allocated memory was 159.4MB in the beginning and 155.2MB in the end (delta: -4.2MB). Free memory was 86.7MB in the beginning and 39.4MB in the end (delta: 47.2MB). Peak memory consumption was 47.3MB. Max. memory is 8.0GB. [2025-04-26 16:24:10,254 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.74ms. Allocated memory is still 159.4MB. Free memory is still 87.6MB. There was no memory consumed. Max. memory is 8.0GB. [2025-04-26 16:24:10,254 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.10ms. Allocated memory is still 159.4MB. Free memory was 86.5MB in the beginning and 84.8MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 8.0GB. [2025-04-26 16:24:10,254 INFO L158 Benchmark]: Boogie Preprocessor took 23.45ms. Allocated memory is still 159.4MB. Free memory was 84.7MB in the beginning and 83.7MB in the end (delta: 1.0MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2025-04-26 16:24:10,254 INFO L158 Benchmark]: RCFGBuilder took 203.76ms. Allocated memory is still 159.4MB. Free memory was 83.7MB in the beginning and 73.9MB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2025-04-26 16:24:10,255 INFO L158 Benchmark]: BuchiAutomizer took 5552.29ms. Allocated memory was 159.4MB in the beginning and 155.2MB in the end (delta: -4.2MB). Free memory was 73.8MB in the beginning and 39.4MB in the end (delta: 34.3MB). Peak memory consumption was 34.7MB. Max. memory is 8.0GB. [2025-04-26 16:24:10,256 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 0.74ms. Allocated memory is still 159.4MB. Free memory is still 87.6MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 35.10ms. Allocated memory is still 159.4MB. Free memory was 86.5MB in the beginning and 84.8MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 8.0GB. * Boogie Preprocessor took 23.45ms. Allocated memory is still 159.4MB. Free memory was 84.7MB in the beginning and 83.7MB in the end (delta: 1.0MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 203.76ms. Allocated memory is still 159.4MB. Free memory was 83.7MB in the beginning and 73.9MB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * BuchiAutomizer took 5552.29ms. Allocated memory was 159.4MB in the beginning and 155.2MB in the end (delta: -4.2MB). Free memory was 73.8MB in the beginning and 39.4MB in the end (delta: 34.3MB). Peak memory consumption was 34.7MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 5.4s and 11 iterations. TraceHistogramMax:1. Analysis of lassos took 3.6s. Construction of modules took 0.2s. Büchi inclusion checks took 1.0s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 9. Automata minimization 0.2s AutomataMinimizationTime, 9 MinimizatonAttempts, 1947 StatesRemovedByMinimization, 9 NontrivialMinimizations. Non-live state removal took 0.1s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [8, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 678 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 676 mSDsluCounter, 1048 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 447 mSDsCounter, 49 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 399 IncrementalHoareTripleChecker+Invalid, 448 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 49 mSolverCounterUnsat, 601 mSDtfsCounter, 399 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc1 concLT0 SILN1 SILU0 SILI0 SILT0 lasso6 LassoPreprocessingBenchmarks: Lassos: inital24 mio100 ax100 hnf100 lsp65 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq169 hnf94 smp100 dnf100 smp100 tf102 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 49ms VariablesStem: 1 VariablesLoop: 1 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 16 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 8 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.3s InitialAbstractionConstructionTime: 0.0s InitialAbstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 10 terminating modules (2 trivial, 8 deterministic, 0 nondeterministic). One deterministic module has affine ranking function 2 * n + -2 * x1 + t and consists of 5 locations. One deterministic module has affine ranking function 2 * n + -2 * x1 + 1 and consists of 4 locations. One deterministic module has affine ranking function 2 * n + -2 * x2 + t and consists of 5 locations. One deterministic module has affine ranking function 2 * n + -2 * x2 + 1 and consists of 4 locations. One deterministic module has affine ranking function 2 * n + -2 * x3 + 1 and consists of 6 locations. One deterministic module has affine ranking function 2 * n + -2 * x3 + 1 and consists of 6 locations. One deterministic module has affine ranking function -1 * z2 and consists of 4 locations. One deterministic module has affine ranking function -1 * z1 and consists of 4 locations. 2 modules have a trivial ranking function, the largest among these consists of 3 locations. - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2025-04-26 16:24:10,267 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...