/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/3_thr/adfg_3_x_n_t_indep.c.bpl -------------------------------------------------------------------------------- This is Ultimate 0.3.0-wip.dk.ample-buchi-601be74-m [2025-02-17 22:45:40,277 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-17 22:45:40,322 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/settings/buchiAutomizer/concurrent-automaton-noLbe.epf [2025-02-17 22:45:40,328 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-17 22:45:40,328 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-17 22:45:40,346 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-17 22:45:40,347 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-17 22:45:40,347 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-17 22:45:40,347 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-17 22:45:40,347 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-17 22:45:40,347 INFO L153 SettingsManager]: * Use SBE=true [2025-02-17 22:45:40,347 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2025-02-17 22:45:40,347 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2025-02-17 22:45:40,348 INFO L153 SettingsManager]: * Use old map elimination=false [2025-02-17 22:45:40,348 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2025-02-17 22:45:40,348 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2025-02-17 22:45:40,348 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2025-02-17 22:45:40,348 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-17 22:45:40,348 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2025-02-17 22:45:40,348 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-17 22:45:40,348 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-17 22:45:40,348 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-17 22:45:40,348 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-17 22:45:40,348 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2025-02-17 22:45:40,348 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2025-02-17 22:45:40,348 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2025-02-17 22:45:40,348 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-17 22:45:40,348 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-17 22:45:40,349 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-17 22:45:40,349 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2025-02-17 22:45:40,349 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-17 22:45:40,349 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-02-17 22:45:40,349 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-17 22:45:40,349 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-17 22:45:40,349 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-17 22:45:40,349 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2025-02-17 22:45:40,349 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR [2025-02-17 22:45:40,585 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-17 22:45:40,592 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-17 22:45:40,594 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-17 22:45:40,596 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2025-02-17 22:45:40,596 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2025-02-17 22:45:40,598 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/cav23-termute-examples/3_thr/adfg_3_x_n_t_indep.c.bpl [2025-02-17 22:45:40,599 INFO L110 BoogieParser]: Parsing: '/storage/cav23-termute-examples/3_thr/adfg_3_x_n_t_indep.c.bpl' [2025-02-17 22:45:40,619 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-17 22:45:40,620 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2025-02-17 22:45:40,621 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-17 22:45:40,621 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-17 22:45:40,621 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-17 22:45:40,628 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "adfg_3_x_n_t_indep.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:40" (1/1) ... [2025-02-17 22:45:40,633 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "adfg_3_x_n_t_indep.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:40" (1/1) ... [2025-02-17 22:45:40,639 INFO L138 Inliner]: procedures = 4, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2025-02-17 22:45:40,641 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-17 22:45:40,642 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-17 22:45:40,642 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-17 22:45:40,642 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-17 22:45:40,647 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "adfg_3_x_n_t_indep.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:40" (1/1) ... [2025-02-17 22:45:40,648 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "adfg_3_x_n_t_indep.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:40" (1/1) ... [2025-02-17 22:45:40,649 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "adfg_3_x_n_t_indep.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:40" (1/1) ... [2025-02-17 22:45:40,649 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "adfg_3_x_n_t_indep.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:40" (1/1) ... [2025-02-17 22:45:40,651 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "adfg_3_x_n_t_indep.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:40" (1/1) ... [2025-02-17 22:45:40,652 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "adfg_3_x_n_t_indep.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:40" (1/1) ... [2025-02-17 22:45:40,656 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "adfg_3_x_n_t_indep.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:40" (1/1) ... [2025-02-17 22:45:40,656 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "adfg_3_x_n_t_indep.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:40" (1/1) ... [2025-02-17 22:45:40,657 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "adfg_3_x_n_t_indep.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:40" (1/1) ... [2025-02-17 22:45:40,658 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-17 22:45:40,658 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-02-17 22:45:40,658 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-02-17 22:45:40,658 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-02-17 22:45:40,659 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "adfg_3_x_n_t_indep.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:40" (1/1) ... [2025-02-17 22:45:40,667 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:40,674 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:40,689 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:45:40,692 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2025-02-17 22:45:40,713 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2025-02-17 22:45:40,713 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-02-17 22:45:40,713 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-02-17 22:45:40,713 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2025-02-17 22:45:40,713 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-02-17 22:45:40,713 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-02-17 22:45:40,713 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2025-02-17 22:45:40,713 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-02-17 22:45:40,714 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-02-17 22:45:40,714 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2025-02-17 22:45:40,714 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-17 22:45:40,714 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-17 22:45:40,715 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-17 22:45:40,756 INFO L234 CfgBuilder]: Building ICFG [2025-02-17 22:45:40,758 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-17 22:45:40,858 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-17 22:45:40,858 INFO L283 CfgBuilder]: Performing block encoding [2025-02-17 22:45:40,870 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-17 22:45:40,870 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-17 22:45:40,871 INFO L201 PluginConnector]: Adding new model adfg_3_x_n_t_indep.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.02 10:45:40 BoogieIcfgContainer [2025-02-17 22:45:40,871 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-02-17 22:45:40,873 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2025-02-17 22:45:40,873 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2025-02-17 22:45:40,879 INFO L274 PluginConnector]: BuchiAutomizer initialized [2025-02-17 22:45:40,881 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-02-17 22:45:40,881 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "adfg_3_x_n_t_indep.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:40" (1/2) ... [2025-02-17 22:45:40,882 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5a703c8e and model type adfg_3_x_n_t_indep.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.02 10:45:40, skipping insertion in model container [2025-02-17 22:45:40,882 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-02-17 22:45:40,882 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "adfg_3_x_n_t_indep.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.02 10:45:40" (2/2) ... [2025-02-17 22:45:40,883 INFO L363 chiAutomizerObserver]: Analyzing ICFG adfg_3_x_n_t_indep.c.bpl [2025-02-17 22:45:40,951 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2025-02-17 22:45:40,983 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 44 places, 46 transitions, 113 flow [2025-02-17 22:45:41,009 INFO L124 PetriNetUnfolderBase]: 9/40 cut-off events. [2025-02-17 22:45:41,012 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2025-02-17 22:45:41,019 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53 conditions, 40 events. 9/40 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 96 event pairs, 0 based on Foata normal form. 0/31 useless extension candidates. Maximal degree in co-relation 39. Up to 4 conditions per place. [2025-02-17 22:45:41,019 INFO L82 GeneralOperation]: Start removeDead. Operand has 44 places, 46 transitions, 113 flow [2025-02-17 22:45:41,022 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 41 places, 40 transitions, 98 flow [2025-02-17 22:45:41,030 INFO L306 stractBuchiCegarLoop]: Interprodecural is true [2025-02-17 22:45:41,031 INFO L307 stractBuchiCegarLoop]: Hoare is None [2025-02-17 22:45:41,031 INFO L308 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2025-02-17 22:45:41,031 INFO L309 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2025-02-17 22:45:41,031 INFO L310 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2025-02-17 22:45:41,031 INFO L311 stractBuchiCegarLoop]: Difference is false [2025-02-17 22:45:41,031 INFO L312 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2025-02-17 22:45:41,031 INFO L316 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2025-02-17 22:45:41,032 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 0 states, but on-demand construction may add more states [2025-02-17 22:45:41,191 INFO L131 ngComponentsAnalysis]: Automaton has 115 accepting balls. 724 [2025-02-17 22:45:41,192 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-17 22:45:41,192 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-17 22:45:41,196 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2025-02-17 22:45:41,196 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-02-17 22:45:41,196 INFO L338 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2025-02-17 22:45:41,196 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 911 states, but on-demand construction may add more states [2025-02-17 22:45:41,236 INFO L131 ngComponentsAnalysis]: Automaton has 115 accepting balls. 724 [2025-02-17 22:45:41,236 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-17 22:45:41,236 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-17 22:45:41,236 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2025-02-17 22:45:41,236 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-02-17 22:45:41,242 INFO L752 eck$LassoCheckResult]: Stem: "[148] $Ultimate##0-->$Ultimate##0: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" "[113] $Ultimate##0-->L30: Formula: (<= 1 v_b_2) InVars {b=v_b_2} OutVars{b=v_b_2} AuxVars[] AssignedVars[]" "[115] L30-->L38-2: Formula: (= v_t1_2 1) InVars {} OutVars{t1=v_t1_2} AuxVars[] AssignedVars[t1]" [2025-02-17 22:45:41,243 INFO L754 eck$LassoCheckResult]: Loop: "[118] L38-2-->L38: Formula: (<= v_x1_4 v_n1_2) InVars {x1=v_x1_4, n1=v_n1_2} OutVars{x1=v_x1_4, n1=v_n1_2} AuxVars[] AssignedVars[]" "[121] L38-->L44: Formula: (< v_b_1 1) InVars {b=v_b_1} OutVars{b=v_b_1} AuxVars[] AssignedVars[]" "[123] L44-->L38-2: Formula: (= (+ v_x1_1 v_t1_1) v_x1_2) InVars {t1=v_t1_1, x1=v_x1_2} OutVars{t1=v_t1_1, x1=v_x1_1} AuxVars[] AssignedVars[x1]" [2025-02-17 22:45:41,247 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:41,248 INFO L85 PathProgramCache]: Analyzing trace with hash 175637, now seen corresponding path program 1 times [2025-02-17 22:45:41,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:45:41,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1879570892] [2025-02-17 22:45:41,255 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:45:41,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:45:41,298 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:45:41,304 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:45:41,304 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:41,304 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:41,304 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:45:41,306 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:45:41,307 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:45:41,307 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:41,307 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:41,317 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:45:41,319 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:41,319 INFO L85 PathProgramCache]: Analyzing trace with hash 147063, now seen corresponding path program 1 times [2025-02-17 22:45:41,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:45:41,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865582376] [2025-02-17 22:45:41,319 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:45:41,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:45:41,324 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:45:41,326 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:45:41,327 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:41,327 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:41,327 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:45:41,328 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:45:41,329 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:45:41,329 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:41,329 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:41,330 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:45:41,331 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:41,331 INFO L85 PathProgramCache]: Analyzing trace with hash 937551843, now seen corresponding path program 1 times [2025-02-17 22:45:41,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:45:41,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508317412] [2025-02-17 22:45:41,331 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:45:41,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:45:41,338 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-17 22:45:41,340 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-17 22:45:41,340 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:41,340 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:45:41,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-17 22:45:41,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-17 22:45:41,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508317412] [2025-02-17 22:45:41,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [508317412] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-17 22:45:41,391 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-17 22:45:41,393 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-17 22:45:41,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280006135] [2025-02-17 22:45:41,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-17 22:45:41,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-17 22:45:41,443 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-17 22:45:41,443 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-17 22:45:41,446 INFO L87 Difference]: Start difference. First operand currently 911 states, but on-demand construction may add more states Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:45:41,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-17 22:45:41,539 INFO L93 Difference]: Finished difference Result 1330 states and 4305 transitions. [2025-02-17 22:45:41,540 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1330 states and 4305 transitions. [2025-02-17 22:45:41,564 INFO L131 ngComponentsAnalysis]: Automaton has 236 accepting balls. 960 [2025-02-17 22:45:41,591 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1330 states to 1298 states and 4221 transitions. [2025-02-17 22:45:41,592 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1298 [2025-02-17 22:45:41,597 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1298 [2025-02-17 22:45:41,598 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1298 states and 4221 transitions. [2025-02-17 22:45:41,608 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-02-17 22:45:41,611 INFO L218 hiAutomatonCegarLoop]: Abstraction has 1298 states and 4221 transitions. [2025-02-17 22:45:41,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1298 states and 4221 transitions. [2025-02-17 22:45:41,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1298 to 1298. [2025-02-17 22:45:41,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1298 states, 1298 states have (on average 3.251926040061633) internal successors, (4221), 1297 states have internal predecessors, (4221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:45:41,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1298 states to 1298 states and 4221 transitions. [2025-02-17 22:45:41,743 INFO L240 hiAutomatonCegarLoop]: Abstraction has 1298 states and 4221 transitions. [2025-02-17 22:45:41,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-17 22:45:41,756 INFO L432 stractBuchiCegarLoop]: Abstraction has 1298 states and 4221 transitions. [2025-02-17 22:45:41,756 INFO L338 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2025-02-17 22:45:41,756 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 1298 states and 4221 transitions. [2025-02-17 22:45:41,781 INFO L131 ngComponentsAnalysis]: Automaton has 236 accepting balls. 960 [2025-02-17 22:45:41,781 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-17 22:45:41,781 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-17 22:45:41,782 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2025-02-17 22:45:41,782 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-02-17 22:45:41,786 INFO L752 eck$LassoCheckResult]: Stem: "[148] $Ultimate##0-->$Ultimate##0: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" "[113] $Ultimate##0-->L30: Formula: (<= 1 v_b_2) InVars {b=v_b_2} OutVars{b=v_b_2} AuxVars[] AssignedVars[]" "[115] L30-->L38-2: Formula: (= v_t1_2 1) InVars {} OutVars{t1=v_t1_2} AuxVars[] AssignedVars[t1]" [2025-02-17 22:45:41,786 INFO L754 eck$LassoCheckResult]: Loop: "[118] L38-2-->L38: Formula: (<= v_x1_4 v_n1_2) InVars {x1=v_x1_4, n1=v_n1_2} OutVars{x1=v_x1_4, n1=v_n1_2} AuxVars[] AssignedVars[]" "[120] L38-->L40: Formula: (<= 1 v_b_4) InVars {b=v_b_4} OutVars{b=v_b_4} AuxVars[] AssignedVars[]" "[122] L40-->L38-2: Formula: (= v_x1_5 (+ v_x1_6 v_t1_4)) InVars {t1=v_t1_4, x1=v_x1_6} OutVars{t1=v_t1_4, x1=v_x1_5} AuxVars[] AssignedVars[x1]" [2025-02-17 22:45:41,787 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:41,787 INFO L85 PathProgramCache]: Analyzing trace with hash 175637, now seen corresponding path program 2 times [2025-02-17 22:45:41,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:45:41,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608270337] [2025-02-17 22:45:41,788 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-17 22:45:41,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:45:41,797 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:45:41,801 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:45:41,801 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-17 22:45:41,802 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:41,802 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:45:41,805 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:45:41,806 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:45:41,806 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:41,806 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:41,807 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:45:41,809 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:41,809 INFO L85 PathProgramCache]: Analyzing trace with hash 147031, now seen corresponding path program 1 times [2025-02-17 22:45:41,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:45:41,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246315428] [2025-02-17 22:45:41,809 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:45:41,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:45:41,814 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:45:41,815 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:45:41,815 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:41,815 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:41,815 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:45:41,816 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:45:41,820 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:45:41,820 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:41,820 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:41,821 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:45:41,822 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:41,822 INFO L85 PathProgramCache]: Analyzing trace with hash 937551811, now seen corresponding path program 1 times [2025-02-17 22:45:41,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:45:41,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175259870] [2025-02-17 22:45:41,822 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:45:41,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:45:41,827 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-17 22:45:41,833 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-17 22:45:41,833 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:41,833 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:41,833 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:45:41,834 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-17 22:45:41,837 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-17 22:45:41,837 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:41,837 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:41,839 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:45:41,908 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:45:41,911 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:45:41,911 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:45:41,912 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:45:41,912 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-17 22:45:41,912 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:41,912 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:45:41,912 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:45:41,913 INFO L132 ssoRankerPreferences]: Filename of dumped script: adfg_3_x_n_t_indep.c.bpl_petrified1_Iteration2_Lasso [2025-02-17 22:45:41,913 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:45:41,913 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:45:41,922 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:41,929 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:41,938 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:41,985 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:45:41,987 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-17 22:45:41,988 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:41,988 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:41,991 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:45:41,992 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2025-02-17 22:45:41,995 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:45:41,995 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:45:42,015 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-02-17 22:45:42,015 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {b=1} Honda state: {b=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-02-17 22:45:42,022 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 [2025-02-17 22:45:42,022 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:42,022 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:42,025 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:45:42,027 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2025-02-17 22:45:42,028 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:45:42,029 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:45:42,049 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2025-02-17 22:45:42,049 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:42,049 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:42,051 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:45:42,051 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2025-02-17 22:45:42,053 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-17 22:45:42,053 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:45:42,194 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-17 22:45:42,200 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2025-02-17 22:45:42,200 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:45:42,203 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:45:42,203 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:45:42,203 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:45:42,204 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-17 22:45:42,204 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:42,204 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:45:42,204 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:45:42,204 INFO L132 ssoRankerPreferences]: Filename of dumped script: adfg_3_x_n_t_indep.c.bpl_petrified1_Iteration2_Lasso [2025-02-17 22:45:42,204 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:45:42,204 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:45:42,205 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:42,212 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:42,220 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:42,258 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:45:42,261 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-17 22:45:42,262 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:42,262 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:42,264 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:45:42,266 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2025-02-17 22:45:42,268 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-02-17 22:45:42,279 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:45:42,279 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:45:42,279 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:45:42,280 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:45:42,286 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-02-17 22:45:42,286 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-02-17 22:45:42,290 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-17 22:45:42,295 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2025-02-17 22:45:42,296 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:42,296 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:42,297 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:45:42,299 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2025-02-17 22:45:42,300 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-02-17 22:45:42,310 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:45:42,310 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:45:42,310 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:45:42,310 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:45:42,313 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-02-17 22:45:42,313 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-02-17 22:45:42,320 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-17 22:45:42,325 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2025-02-17 22:45:42,326 INFO L444 ModelExtractionUtils]: 5 out of 13 variables were initially zero. Simplification set additionally 0 variables to zero. [2025-02-17 22:45:42,327 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:42,328 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:42,330 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:45:42,331 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2025-02-17 22:45:42,333 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-17 22:45:42,345 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2025-02-17 22:45:42,345 INFO L474 LassoAnalysis]: Proved termination. [2025-02-17 22:45:42,346 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(n1, t1, x1) = 2*n1 + 1*t1 - 2*x1 Supporting invariants [1*t1 - 1 >= 0] [2025-02-17 22:45:42,352 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2025-02-17 22:45:42,356 INFO L156 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2025-02-17 22:45:42,384 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:42,390 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:45:42,391 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:45:42,391 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:42,391 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:45:42,392 INFO L256 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-17 22:45:42,393 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:45:42,405 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:45:42,406 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:45:42,406 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:42,406 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:45:42,407 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-17 22:45:42,407 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:45:42,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-17 22:45:42,440 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2025-02-17 22:45:42,441 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 1298 states and 4221 transitions. cyclomatic complexity: 3159 Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:45:42,555 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 1298 states and 4221 transitions. cyclomatic complexity: 3159. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 2761 states and 9442 transitions. Complement of second has 6 states. [2025-02-17 22:45:42,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2025-02-17 22:45:42,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:45:42,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 107 transitions. [2025-02-17 22:45:42,561 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 107 transitions. Stem has 3 letters. Loop has 3 letters. [2025-02-17 22:45:42,562 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:45:42,562 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 107 transitions. Stem has 6 letters. Loop has 3 letters. [2025-02-17 22:45:42,562 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:45:42,562 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 107 transitions. Stem has 3 letters. Loop has 6 letters. [2025-02-17 22:45:42,562 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:45:42,562 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 2761 states and 9442 transitions. [2025-02-17 22:45:42,595 INFO L131 ngComponentsAnalysis]: Automaton has 320 accepting balls. 1248 [2025-02-17 22:45:42,619 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 2761 states to 2455 states and 8344 transitions. [2025-02-17 22:45:42,619 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1864 [2025-02-17 22:45:42,625 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 2116 [2025-02-17 22:45:42,626 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2455 states and 8344 transitions. [2025-02-17 22:45:42,626 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-17 22:45:42,626 INFO L218 hiAutomatonCegarLoop]: Abstraction has 2455 states and 8344 transitions. [2025-02-17 22:45:42,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2455 states and 8344 transitions. [2025-02-17 22:45:42,686 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2025-02-17 22:45:42,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2455 to 1968. [2025-02-17 22:45:42,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1968 states, 1968 states have (on average 3.5091463414634148) internal successors, (6906), 1967 states have internal predecessors, (6906), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:45:42,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1968 states to 1968 states and 6906 transitions. [2025-02-17 22:45:42,709 INFO L240 hiAutomatonCegarLoop]: Abstraction has 1968 states and 6906 transitions. [2025-02-17 22:45:42,709 INFO L432 stractBuchiCegarLoop]: Abstraction has 1968 states and 6906 transitions. [2025-02-17 22:45:42,709 INFO L338 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2025-02-17 22:45:42,709 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 1968 states and 6906 transitions. [2025-02-17 22:45:42,721 INFO L131 ngComponentsAnalysis]: Automaton has 278 accepting balls. 1104 [2025-02-17 22:45:42,721 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-17 22:45:42,721 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-17 22:45:42,721 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2025-02-17 22:45:42,721 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-02-17 22:45:42,722 INFO L752 eck$LassoCheckResult]: Stem: "[148] $Ultimate##0-->$Ultimate##0: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" "[114] $Ultimate##0-->L34: Formula: (< v_b_3 1) InVars {b=v_b_3} OutVars{b=v_b_3} AuxVars[] AssignedVars[]" "[116] L34-->L38-2: Formula: (= (+ v_t1_3 1) 0) InVars {} OutVars{t1=v_t1_3} AuxVars[] AssignedVars[t1]" [2025-02-17 22:45:42,722 INFO L754 eck$LassoCheckResult]: Loop: "[118] L38-2-->L38: Formula: (<= v_x1_4 v_n1_2) InVars {x1=v_x1_4, n1=v_n1_2} OutVars{x1=v_x1_4, n1=v_n1_2} AuxVars[] AssignedVars[]" "[121] L38-->L44: Formula: (< v_b_1 1) InVars {b=v_b_1} OutVars{b=v_b_1} AuxVars[] AssignedVars[]" "[123] L44-->L38-2: Formula: (= (+ v_x1_1 v_t1_1) v_x1_2) InVars {t1=v_t1_1, x1=v_x1_2} OutVars{t1=v_t1_1, x1=v_x1_1} AuxVars[] AssignedVars[x1]" [2025-02-17 22:45:42,723 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:42,723 INFO L85 PathProgramCache]: Analyzing trace with hash 175669, now seen corresponding path program 1 times [2025-02-17 22:45:42,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:45:42,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794412829] [2025-02-17 22:45:42,723 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:45:42,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:45:42,727 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:45:42,728 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:45:42,728 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:42,728 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:42,728 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:45:42,730 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:45:42,730 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:45:42,730 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:42,730 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:42,731 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:45:42,731 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:42,732 INFO L85 PathProgramCache]: Analyzing trace with hash 147063, now seen corresponding path program 2 times [2025-02-17 22:45:42,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:45:42,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581828011] [2025-02-17 22:45:42,732 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-17 22:45:42,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:45:42,735 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:45:42,738 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:45:42,738 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-17 22:45:42,738 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:42,738 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:45:42,739 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:45:42,740 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:45:42,740 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:42,740 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:42,741 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:45:42,741 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:42,741 INFO L85 PathProgramCache]: Analyzing trace with hash 938505155, now seen corresponding path program 1 times [2025-02-17 22:45:42,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:45:42,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425077538] [2025-02-17 22:45:42,741 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:45:42,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:45:42,744 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-17 22:45:42,748 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-17 22:45:42,748 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:42,748 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:42,748 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:45:42,749 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-17 22:45:42,753 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-17 22:45:42,753 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:42,753 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:42,754 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:45:42,793 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:45:42,793 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:45:42,793 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:45:42,793 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:45:42,793 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-17 22:45:42,793 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:42,793 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:45:42,793 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:45:42,793 INFO L132 ssoRankerPreferences]: Filename of dumped script: adfg_3_x_n_t_indep.c.bpl_petrified1_Iteration3_Lasso [2025-02-17 22:45:42,793 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:45:42,793 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:45:42,794 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:42,802 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:42,804 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:42,840 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:45:42,840 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-17 22:45:42,841 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:42,841 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:42,843 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:45:42,844 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2025-02-17 22:45:42,846 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:45:42,846 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:45:42,863 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2025-02-17 22:45:42,863 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:42,863 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:42,865 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:45:42,866 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2025-02-17 22:45:42,868 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-17 22:45:42,868 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:45:42,978 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-17 22:45:42,983 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2025-02-17 22:45:42,984 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:45:42,984 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:45:42,984 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:45:42,984 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:45:42,984 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-17 22:45:42,984 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:42,984 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:45:42,984 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:45:42,984 INFO L132 ssoRankerPreferences]: Filename of dumped script: adfg_3_x_n_t_indep.c.bpl_petrified1_Iteration3_Lasso [2025-02-17 22:45:42,984 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:45:42,984 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:45:42,985 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:42,988 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:42,995 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:43,025 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:45:43,025 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-17 22:45:43,025 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:43,025 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:43,027 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:45:43,029 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2025-02-17 22:45:43,030 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-02-17 22:45:43,039 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:45:43,039 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:45:43,039 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:45:43,039 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:45:43,042 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-02-17 22:45:43,042 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-02-17 22:45:43,048 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-17 22:45:43,056 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2025-02-17 22:45:43,060 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:43,060 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:43,063 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:45:43,064 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2025-02-17 22:45:43,065 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-02-17 22:45:43,074 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:45:43,075 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:45:43,075 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:45:43,075 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:45:43,078 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-02-17 22:45:43,078 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-02-17 22:45:43,082 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-17 22:45:43,086 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2025-02-17 22:45:43,086 INFO L444 ModelExtractionUtils]: 5 out of 13 variables were initially zero. Simplification set additionally 0 variables to zero. [2025-02-17 22:45:43,087 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:43,087 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:43,088 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:45:43,090 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2025-02-17 22:45:43,093 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-17 22:45:43,104 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2025-02-17 22:45:43,104 INFO L474 LassoAnalysis]: Proved termination. [2025-02-17 22:45:43,105 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(t1, n1, x1) = -1*t1 + 2*n1 - 2*x1 Supporting invariants [-1*t1 - 1 >= 0] [2025-02-17 22:45:43,111 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2025-02-17 22:45:43,114 INFO L156 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2025-02-17 22:45:43,134 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:43,137 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:45:43,138 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:45:43,138 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:43,138 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:45:43,139 INFO L256 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-17 22:45:43,139 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:45:43,145 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:45:43,146 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:45:43,146 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:43,146 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:45:43,147 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-17 22:45:43,147 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:45:43,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-17 22:45:43,170 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2025-02-17 22:45:43,171 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 1968 states and 6906 transitions. cyclomatic complexity: 5269 Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:45:43,290 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 1968 states and 6906 transitions. cyclomatic complexity: 5269. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 4232 states and 15291 transitions. Complement of second has 7 states. [2025-02-17 22:45:43,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2025-02-17 22:45:43,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:45:43,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 118 transitions. [2025-02-17 22:45:43,292 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 118 transitions. Stem has 3 letters. Loop has 3 letters. [2025-02-17 22:45:43,292 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:45:43,292 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 118 transitions. Stem has 6 letters. Loop has 3 letters. [2025-02-17 22:45:43,292 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:45:43,292 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 118 transitions. Stem has 3 letters. Loop has 6 letters. [2025-02-17 22:45:43,292 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:45:43,292 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 4232 states and 15291 transitions. [2025-02-17 22:45:43,349 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2025-02-17 22:45:43,367 INFO L131 ngComponentsAnalysis]: Automaton has 403 accepting balls. 1473 [2025-02-17 22:45:43,405 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 4232 states to 3598 states and 12507 transitions. [2025-02-17 22:45:43,405 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 2480 [2025-02-17 22:45:43,411 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 2958 [2025-02-17 22:45:43,411 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3598 states and 12507 transitions. [2025-02-17 22:45:43,411 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-17 22:45:43,411 INFO L218 hiAutomatonCegarLoop]: Abstraction has 3598 states and 12507 transitions. [2025-02-17 22:45:43,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3598 states and 12507 transitions. [2025-02-17 22:45:43,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3598 to 2313. [2025-02-17 22:45:43,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2313 states, 2313 states have (on average 3.610030263726762) internal successors, (8350), 2312 states have internal predecessors, (8350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:45:43,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2313 states to 2313 states and 8350 transitions. [2025-02-17 22:45:43,474 INFO L240 hiAutomatonCegarLoop]: Abstraction has 2313 states and 8350 transitions. [2025-02-17 22:45:43,474 INFO L432 stractBuchiCegarLoop]: Abstraction has 2313 states and 8350 transitions. [2025-02-17 22:45:43,474 INFO L338 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2025-02-17 22:45:43,475 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 2313 states and 8350 transitions. [2025-02-17 22:45:43,490 INFO L131 ngComponentsAnalysis]: Automaton has 277 accepting balls. 1041 [2025-02-17 22:45:43,491 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-17 22:45:43,491 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-17 22:45:43,491 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2025-02-17 22:45:43,491 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-02-17 22:45:43,492 INFO L752 eck$LassoCheckResult]: Stem: "[148] $Ultimate##0-->$Ultimate##0: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" "[151] L17-->$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]" "[124] $Ultimate##0-->L54: Formula: (<= 1 v_b_7) InVars {b=v_b_7} OutVars{b=v_b_7} AuxVars[] AssignedVars[]" "[126] L54-->L62-2: Formula: (= v_t2_3 1) InVars {} OutVars{t2=v_t2_3} AuxVars[] AssignedVars[t2]" [2025-02-17 22:45:43,492 INFO L754 eck$LassoCheckResult]: Loop: "[129] L62-2-->L62: Formula: (<= v_x2_1 v_n2_1) InVars {n2=v_n2_1, x2=v_x2_1} OutVars{n2=v_n2_1, x2=v_x2_1} AuxVars[] AssignedVars[]" "[131] L62-->L64: Formula: (<= 1 v_b_5) InVars {b=v_b_5} OutVars{b=v_b_5} AuxVars[] AssignedVars[]" "[133] L64-->L62-2: Formula: (= (+ v_x2_3 v_t2_1) v_x2_2) InVars {t2=v_t2_1, x2=v_x2_3} OutVars{t2=v_t2_1, x2=v_x2_2} AuxVars[] AssignedVars[x2]" [2025-02-17 22:45:43,492 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:43,492 INFO L85 PathProgramCache]: Analyzing trace with hash 5481670, now seen corresponding path program 1 times [2025-02-17 22:45:43,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:45:43,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189682266] [2025-02-17 22:45:43,493 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:45:43,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:45:43,495 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-17 22:45:43,496 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-17 22:45:43,497 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:43,497 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:43,497 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:45:43,497 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-17 22:45:43,498 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-17 22:45:43,498 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:43,498 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:43,499 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:45:43,500 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:43,500 INFO L85 PathProgramCache]: Analyzing trace with hash 157954, now seen corresponding path program 1 times [2025-02-17 22:45:43,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:45:43,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523411480] [2025-02-17 22:45:43,500 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:45:43,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:45:43,501 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:45:43,519 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:45:43,520 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:43,520 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:43,520 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:45:43,521 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:45:43,521 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:45:43,521 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:43,522 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:43,522 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:45:43,524 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:43,524 INFO L85 PathProgramCache]: Analyzing trace with hash 95801885, now seen corresponding path program 1 times [2025-02-17 22:45:43,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:45:43,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276529396] [2025-02-17 22:45:43,524 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:45:43,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:45:43,527 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-17 22:45:43,530 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-17 22:45:43,530 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:43,530 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:43,530 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:45:43,531 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-17 22:45:43,534 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-17 22:45:43,535 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:43,535 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:43,537 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:45:43,577 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:45:43,577 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:45:43,577 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:45:43,577 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:45:43,577 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-17 22:45:43,577 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:43,577 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:45:43,577 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:45:43,577 INFO L132 ssoRankerPreferences]: Filename of dumped script: adfg_3_x_n_t_indep.c.bpl_petrified1_Iteration4_Lasso [2025-02-17 22:45:43,577 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:45:43,577 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:45:43,578 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:43,582 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:43,584 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:43,587 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:43,592 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:43,637 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:45:43,637 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-17 22:45:43,637 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:43,638 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:43,639 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:45:43,643 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2025-02-17 22:45:43,643 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:45:43,643 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:45:43,654 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-02-17 22:45:43,655 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {thread2Thread1of1ForFork1_thidvar0=0} Honda state: {thread2Thread1of1ForFork1_thidvar0=2} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-02-17 22:45:43,660 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2025-02-17 22:45:43,661 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:43,661 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:43,663 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:45:43,665 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2025-02-17 22:45:43,665 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:45:43,665 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:45:43,676 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-02-17 22:45:43,677 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {thread1Thread1of1ForFork0_thidvar0=0} Honda state: {thread1Thread1of1ForFork0_thidvar0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-02-17 22:45:43,685 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2025-02-17 22:45:43,685 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:43,685 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:43,687 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:45:43,688 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2025-02-17 22:45:43,690 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:45:43,690 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:45:43,707 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-02-17 22:45:43,707 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {b=1} Honda state: {b=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-02-17 22:45:43,713 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2025-02-17 22:45:43,713 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:43,713 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:43,715 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:45:43,716 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2025-02-17 22:45:43,718 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:45:43,718 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:45:43,735 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2025-02-17 22:45:43,735 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:43,735 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:43,737 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:45:43,738 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2025-02-17 22:45:43,739 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-17 22:45:43,739 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:45:43,879 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-17 22:45:43,885 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2025-02-17 22:45:43,885 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:45:43,885 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:45:43,885 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:45:43,885 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:45:43,885 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-17 22:45:43,885 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:43,885 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:45:43,885 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:45:43,885 INFO L132 ssoRankerPreferences]: Filename of dumped script: adfg_3_x_n_t_indep.c.bpl_petrified1_Iteration4_Lasso [2025-02-17 22:45:43,885 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:45:43,885 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:45:43,886 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:43,893 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:43,900 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:43,903 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:43,906 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:43,959 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:45:43,959 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-17 22:45:43,960 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:43,960 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:43,965 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:45:43,966 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2025-02-17 22:45:43,967 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-02-17 22:45:43,976 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:45:43,977 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:45:43,977 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:45:43,977 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:45:43,979 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-02-17 22:45:43,979 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-02-17 22:45:43,982 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-17 22:45:43,988 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2025-02-17 22:45:43,988 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:43,989 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:43,990 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:45:43,991 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2025-02-17 22:45:43,992 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-02-17 22:45:44,002 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:45:44,002 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:45:44,002 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:45:44,002 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:45:44,005 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-02-17 22:45:44,005 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-02-17 22:45:44,010 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-17 22:45:44,015 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2025-02-17 22:45:44,015 INFO L444 ModelExtractionUtils]: 6 out of 13 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-02-17 22:45:44,016 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:44,016 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:44,017 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:45:44,019 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2025-02-17 22:45:44,020 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-17 22:45:44,032 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2025-02-17 22:45:44,032 INFO L474 LassoAnalysis]: Proved termination. [2025-02-17 22:45:44,032 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(n2, x2) = 2*n2 - 2*x2 + 1 Supporting invariants [1*t2 - 1 >= 0] [2025-02-17 22:45:44,041 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2025-02-17 22:45:44,046 INFO L156 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2025-02-17 22:45:44,066 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:44,072 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-17 22:45:44,073 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-17 22:45:44,073 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:44,073 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:45:44,073 INFO L256 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-17 22:45:44,074 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:45:44,088 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:45:44,089 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:45:44,089 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:44,089 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:45:44,089 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-17 22:45:44,089 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:45:44,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-17 22:45:44,119 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2025-02-17 22:45:44,119 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 2313 states and 8350 transitions. cyclomatic complexity: 6412 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:45:44,207 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 2313 states and 8350 transitions. cyclomatic complexity: 6412. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 5195 states and 19359 transitions. Complement of second has 6 states. [2025-02-17 22:45:44,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2025-02-17 22:45:44,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:45:44,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 106 transitions. [2025-02-17 22:45:44,208 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 106 transitions. Stem has 4 letters. Loop has 3 letters. [2025-02-17 22:45:44,208 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:45:44,209 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 106 transitions. Stem has 7 letters. Loop has 3 letters. [2025-02-17 22:45:44,209 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:45:44,209 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 106 transitions. Stem has 4 letters. Loop has 6 letters. [2025-02-17 22:45:44,209 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:45:44,209 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 5195 states and 19359 transitions. [2025-02-17 22:45:44,252 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2025-02-17 22:45:44,284 INFO L131 ngComponentsAnalysis]: Automaton has 368 accepting balls. 1344 [2025-02-17 22:45:44,330 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 5195 states to 4370 states and 16149 transitions. [2025-02-17 22:45:44,330 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 2413 [2025-02-17 22:45:44,336 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 2740 [2025-02-17 22:45:44,337 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4370 states and 16149 transitions. [2025-02-17 22:45:44,337 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-17 22:45:44,337 INFO L218 hiAutomatonCegarLoop]: Abstraction has 4370 states and 16149 transitions. [2025-02-17 22:45:44,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4370 states and 16149 transitions. [2025-02-17 22:45:44,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4370 to 3635. [2025-02-17 22:45:44,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3635 states, 3635 states have (on average 3.7763411279229713) internal successors, (13727), 3634 states have internal predecessors, (13727), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:45:44,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3635 states to 3635 states and 13727 transitions. [2025-02-17 22:45:44,440 INFO L240 hiAutomatonCegarLoop]: Abstraction has 3635 states and 13727 transitions. [2025-02-17 22:45:44,440 INFO L432 stractBuchiCegarLoop]: Abstraction has 3635 states and 13727 transitions. [2025-02-17 22:45:44,440 INFO L338 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2025-02-17 22:45:44,440 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3635 states and 13727 transitions. [2025-02-17 22:45:44,464 INFO L131 ngComponentsAnalysis]: Automaton has 331 accepting balls. 1221 [2025-02-17 22:45:44,464 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-17 22:45:44,464 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-17 22:45:44,465 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2025-02-17 22:45:44,465 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-02-17 22:45:44,465 INFO L752 eck$LassoCheckResult]: Stem: "[148] $Ultimate##0-->$Ultimate##0: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" "[151] L17-->$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]" "[125] $Ultimate##0-->L58: Formula: (< v_b_8 1) InVars {b=v_b_8} OutVars{b=v_b_8} AuxVars[] AssignedVars[]" "[127] L58-->L62-2: Formula: (= (+ v_t2_4 1) 0) InVars {} OutVars{t2=v_t2_4} AuxVars[] AssignedVars[t2]" [2025-02-17 22:45:44,465 INFO L754 eck$LassoCheckResult]: Loop: "[129] L62-2-->L62: Formula: (<= v_x2_1 v_n2_1) InVars {n2=v_n2_1, x2=v_x2_1} OutVars{n2=v_n2_1, x2=v_x2_1} AuxVars[] AssignedVars[]" "[132] L62-->L68: Formula: (< v_b_6 1) InVars {b=v_b_6} OutVars{b=v_b_6} AuxVars[] AssignedVars[]" "[134] L68-->L62-2: Formula: (= v_x2_5 (+ v_x2_4 v_t2_2)) InVars {t2=v_t2_2, x2=v_x2_5} OutVars{t2=v_t2_2, x2=v_x2_4} AuxVars[] AssignedVars[x2]" [2025-02-17 22:45:44,465 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:44,465 INFO L85 PathProgramCache]: Analyzing trace with hash 5481702, now seen corresponding path program 1 times [2025-02-17 22:45:44,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:45:44,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850841841] [2025-02-17 22:45:44,466 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:45:44,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:45:44,469 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-17 22:45:44,470 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-17 22:45:44,470 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:44,471 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:44,471 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:45:44,472 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-17 22:45:44,473 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-17 22:45:44,473 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:44,473 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:44,475 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:45:44,475 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:44,475 INFO L85 PathProgramCache]: Analyzing trace with hash 157986, now seen corresponding path program 1 times [2025-02-17 22:45:44,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:45:44,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63058021] [2025-02-17 22:45:44,475 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:45:44,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:45:44,477 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:45:44,480 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:45:44,480 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:44,480 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:44,480 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:45:44,481 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:45:44,485 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:45:44,485 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:44,485 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:44,486 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:45:44,486 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:44,487 INFO L85 PathProgramCache]: Analyzing trace with hash 96755229, now seen corresponding path program 1 times [2025-02-17 22:45:44,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:45:44,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189980533] [2025-02-17 22:45:44,487 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:45:44,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:45:44,488 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-17 22:45:44,489 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-17 22:45:44,489 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:44,489 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:44,489 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:45:44,490 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-17 22:45:44,491 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-17 22:45:44,491 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:44,491 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:44,492 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:45:44,530 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:45:44,530 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:45:44,530 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:45:44,530 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:45:44,530 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-17 22:45:44,530 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:44,530 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:45:44,530 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:45:44,530 INFO L132 ssoRankerPreferences]: Filename of dumped script: adfg_3_x_n_t_indep.c.bpl_petrified1_Iteration5_Lasso [2025-02-17 22:45:44,530 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:45:44,531 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:45:44,531 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:44,536 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:44,538 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:44,540 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:44,543 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:44,585 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:45:44,585 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-17 22:45:44,585 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:44,585 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:44,587 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:45:44,588 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2025-02-17 22:45:44,589 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:45:44,590 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:45:44,606 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2025-02-17 22:45:44,606 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:44,606 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:44,608 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:45:44,610 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2025-02-17 22:45:44,612 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-17 22:45:44,612 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:45:44,718 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-17 22:45:44,722 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2025-02-17 22:45:44,723 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:45:44,723 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:45:44,723 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:45:44,723 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:45:44,723 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-17 22:45:44,723 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:44,723 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:45:44,723 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:45:44,723 INFO L132 ssoRankerPreferences]: Filename of dumped script: adfg_3_x_n_t_indep.c.bpl_petrified1_Iteration5_Lasso [2025-02-17 22:45:44,723 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:45:44,723 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:45:44,724 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:44,727 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:44,731 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:44,733 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:44,736 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:44,775 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:45:44,775 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-17 22:45:44,775 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:44,775 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:44,779 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:45:44,781 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2025-02-17 22:45:44,781 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-02-17 22:45:44,791 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:45:44,791 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:45:44,791 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:45:44,791 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:45:44,793 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-02-17 22:45:44,793 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-02-17 22:45:44,795 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-17 22:45:44,801 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2025-02-17 22:45:44,801 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:44,801 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:44,803 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:45:44,804 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2025-02-17 22:45:44,805 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-02-17 22:45:44,815 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:45:44,815 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:45:44,815 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:45:44,815 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:45:44,833 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-02-17 22:45:44,833 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-02-17 22:45:44,838 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-17 22:45:44,846 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2025-02-17 22:45:44,847 INFO L444 ModelExtractionUtils]: 6 out of 13 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-02-17 22:45:44,847 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:44,847 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:44,849 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:45:44,850 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2025-02-17 22:45:44,851 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-17 22:45:44,863 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2025-02-17 22:45:44,863 INFO L474 LassoAnalysis]: Proved termination. [2025-02-17 22:45:44,863 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(n2, x2) = 2*n2 - 2*x2 + 1 Supporting invariants [-1*t2 - 1 >= 0] [2025-02-17 22:45:44,869 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2025-02-17 22:45:44,873 INFO L156 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2025-02-17 22:45:44,892 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:44,896 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-17 22:45:44,897 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-17 22:45:44,897 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:44,897 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:45:44,897 INFO L256 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-17 22:45:44,898 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:45:44,905 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:45:44,906 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:45:44,906 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:44,906 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:45:44,906 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-17 22:45:44,907 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:45:44,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-17 22:45:44,933 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2025-02-17 22:45:44,933 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 3635 states and 13727 transitions. cyclomatic complexity: 10627 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:45:45,044 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 3635 states and 13727 transitions. cyclomatic complexity: 10627. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 8124 states and 31223 transitions. Complement of second has 7 states. [2025-02-17 22:45:45,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2025-02-17 22:45:45,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:45:45,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 117 transitions. [2025-02-17 22:45:45,047 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 117 transitions. Stem has 4 letters. Loop has 3 letters. [2025-02-17 22:45:45,047 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:45:45,047 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 117 transitions. Stem has 7 letters. Loop has 3 letters. [2025-02-17 22:45:45,047 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:45:45,047 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 117 transitions. Stem has 4 letters. Loop has 6 letters. [2025-02-17 22:45:45,047 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:45:45,047 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 8124 states and 31223 transitions. [2025-02-17 22:45:45,116 INFO L131 ngComponentsAnalysis]: Automaton has 436 accepting balls. 1530 [2025-02-17 22:45:45,180 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 8124 states to 6588 states and 24441 transitions. [2025-02-17 22:45:45,181 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3280 [2025-02-17 22:45:45,190 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 3910 [2025-02-17 22:45:45,190 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6588 states and 24441 transitions. [2025-02-17 22:45:45,190 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-17 22:45:45,190 INFO L218 hiAutomatonCegarLoop]: Abstraction has 6588 states and 24441 transitions. [2025-02-17 22:45:45,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6588 states and 24441 transitions. [2025-02-17 22:45:45,263 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2025-02-17 22:45:45,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6588 to 4387. [2025-02-17 22:45:45,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4387 states, 4387 states have (on average 3.8110325963072715) internal successors, (16719), 4386 states have internal predecessors, (16719), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:45:45,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4387 states to 4387 states and 16719 transitions. [2025-02-17 22:45:45,349 INFO L240 hiAutomatonCegarLoop]: Abstraction has 4387 states and 16719 transitions. [2025-02-17 22:45:45,349 INFO L432 stractBuchiCegarLoop]: Abstraction has 4387 states and 16719 transitions. [2025-02-17 22:45:45,349 INFO L338 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2025-02-17 22:45:45,349 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 4387 states and 16719 transitions. [2025-02-17 22:45:45,367 INFO L131 ngComponentsAnalysis]: Automaton has 308 accepting balls. 1104 [2025-02-17 22:45:45,368 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-17 22:45:45,368 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-17 22:45:45,368 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2025-02-17 22:45:45,368 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-02-17 22:45:45,368 INFO L752 eck$LassoCheckResult]: Stem: "[148] $Ultimate##0-->$Ultimate##0: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" "[114] $Ultimate##0-->L34: Formula: (< v_b_3 1) InVars {b=v_b_3} OutVars{b=v_b_3} AuxVars[] AssignedVars[]" "[116] L34-->L38-2: Formula: (= (+ v_t1_3 1) 0) InVars {} OutVars{t1=v_t1_3} AuxVars[] AssignedVars[t1]" "[118] L38-2-->L38: Formula: (<= v_x1_4 v_n1_2) InVars {x1=v_x1_4, n1=v_n1_2} OutVars{x1=v_x1_4, n1=v_n1_2} AuxVars[] AssignedVars[]" "[120] L38-->L40: Formula: (<= 1 v_b_4) InVars {b=v_b_4} OutVars{b=v_b_4} AuxVars[] AssignedVars[]" [2025-02-17 22:45:45,368 INFO L754 eck$LassoCheckResult]: Loop: "[122] L40-->L38-2: Formula: (= v_x1_5 (+ v_x1_6 v_t1_4)) InVars {t1=v_t1_4, x1=v_x1_6} OutVars{t1=v_t1_4, x1=v_x1_5} AuxVars[] AssignedVars[x1]" "[118] L38-2-->L38: Formula: (<= v_x1_4 v_n1_2) InVars {x1=v_x1_4, n1=v_n1_2} OutVars{x1=v_x1_4, n1=v_n1_2} AuxVars[] AssignedVars[]" "[120] L38-->L40: Formula: (<= 1 v_b_4) InVars {b=v_b_4} OutVars{b=v_b_4} AuxVars[] AssignedVars[]" [2025-02-17 22:45:45,369 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:45,369 INFO L85 PathProgramCache]: Analyzing trace with hash 168821687, now seen corresponding path program 1 times [2025-02-17 22:45:45,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:45:45,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1279473144] [2025-02-17 22:45:45,369 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:45:45,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:45:45,371 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-17 22:45:45,372 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-17 22:45:45,372 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:45,372 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:45:45,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-17 22:45:45,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-17 22:45:45,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1279473144] [2025-02-17 22:45:45,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1279473144] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-17 22:45:45,378 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-17 22:45:45,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-17 22:45:45,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605800955] [2025-02-17 22:45:45,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-17 22:45:45,378 INFO L757 eck$LassoCheckResult]: stem already infeasible [2025-02-17 22:45:45,378 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:45,378 INFO L85 PathProgramCache]: Analyzing trace with hash 150811, now seen corresponding path program 2 times [2025-02-17 22:45:45,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:45:45,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438188995] [2025-02-17 22:45:45,378 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-17 22:45:45,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:45:45,380 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:45:45,380 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:45:45,380 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-17 22:45:45,380 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:45,380 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:45:45,381 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:45:45,381 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:45:45,381 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:45,381 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:45,382 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:45:45,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-17 22:45:45,393 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-17 22:45:45,393 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-17 22:45:45,393 INFO L87 Difference]: Start difference. First operand 4387 states and 16719 transitions. cyclomatic complexity: 12941 Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:45:45,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-17 22:45:45,469 INFO L93 Difference]: Finished difference Result 2344 states and 8949 transitions. [2025-02-17 22:45:45,469 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 2344 states and 8949 transitions. [2025-02-17 22:45:45,483 INFO L131 ngComponentsAnalysis]: Automaton has 114 accepting balls. 342 [2025-02-17 22:45:45,495 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 2344 states to 2028 states and 7745 transitions. [2025-02-17 22:45:45,495 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 960 [2025-02-17 22:45:45,497 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 960 [2025-02-17 22:45:45,497 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2028 states and 7745 transitions. [2025-02-17 22:45:45,497 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-17 22:45:45,497 INFO L218 hiAutomatonCegarLoop]: Abstraction has 2028 states and 7745 transitions. [2025-02-17 22:45:45,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2028 states and 7745 transitions. [2025-02-17 22:45:45,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2028 to 2028. [2025-02-17 22:45:45,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2028 states, 2028 states have (on average 3.8190335305719922) internal successors, (7745), 2027 states have internal predecessors, (7745), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:45:45,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2028 states to 2028 states and 7745 transitions. [2025-02-17 22:45:45,531 INFO L240 hiAutomatonCegarLoop]: Abstraction has 2028 states and 7745 transitions. [2025-02-17 22:45:45,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-17 22:45:45,532 INFO L432 stractBuchiCegarLoop]: Abstraction has 2028 states and 7745 transitions. [2025-02-17 22:45:45,532 INFO L338 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2025-02-17 22:45:45,532 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 2028 states and 7745 transitions. [2025-02-17 22:45:45,540 INFO L131 ngComponentsAnalysis]: Automaton has 114 accepting balls. 342 [2025-02-17 22:45:45,540 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-17 22:45:45,540 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-17 22:45:45,541 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2025-02-17 22:45:45,541 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-02-17 22:45:45,541 INFO L752 eck$LassoCheckResult]: Stem: "[148] $Ultimate##0-->$Ultimate##0: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" "[151] L17-->$Ultimate##0: Formula: (and (= 2 v_thread2Thread1of1ForFork1_thidvar1_2) (= 2 v_thread2Thread1of1ForFork1_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_2, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_thidvar0, thread2Thread1of1ForFork1_thidvar1]" "[154] L18-->$Ultimate##0: Formula: (and (= 3 v_thread3Thread1of1ForFork2_thidvar0_2) (= 3 v_thread3Thread1of1ForFork2_thidvar1_2) (= 3 v_thread3Thread1of1ForFork2_thidvar2_2)) InVars {} OutVars{thread3Thread1of1ForFork2_thidvar2=v_thread3Thread1of1ForFork2_thidvar2_2, thread3Thread1of1ForFork2_thidvar1=v_thread3Thread1of1ForFork2_thidvar1_2, thread3Thread1of1ForFork2_thidvar0=v_thread3Thread1of1ForFork2_thidvar0_2} AuxVars[] AssignedVars[thread3Thread1of1ForFork2_thidvar2, thread3Thread1of1ForFork2_thidvar1, thread3Thread1of1ForFork2_thidvar0]" "[135] $Ultimate##0-->L78: Formula: (<= 1 v_b_12) InVars {b=v_b_12} OutVars{b=v_b_12} AuxVars[] AssignedVars[]" "[137] L78-->L86-2: Formula: (= v_t3_4 1) InVars {} OutVars{t3=v_t3_4} AuxVars[] AssignedVars[t3]" [2025-02-17 22:45:45,542 INFO L754 eck$LassoCheckResult]: Loop: "[140] L86-2-->L86: Formula: (<= v_x3_2 v_n3_2) InVars {n3=v_n3_2, x3=v_x3_2} OutVars{n3=v_n3_2, x3=v_x3_2} AuxVars[] AssignedVars[]" "[142] L86-->L88: Formula: (<= 1 v_b_10) InVars {b=v_b_10} OutVars{b=v_b_10} AuxVars[] AssignedVars[]" "[144] L88-->L86-2: Formula: (= v_x3_3 (+ v_x3_4 v_t3_2)) InVars {t3=v_t3_2, x3=v_x3_4} OutVars{t3=v_t3_2, x3=v_x3_3} AuxVars[] AssignedVars[x3]" [2025-02-17 22:45:45,542 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:45,542 INFO L85 PathProgramCache]: Analyzing trace with hash 169961016, now seen corresponding path program 1 times [2025-02-17 22:45:45,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:45:45,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [453365114] [2025-02-17 22:45:45,542 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:45:45,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:45:45,545 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-17 22:45:45,547 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-17 22:45:45,547 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:45,547 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:45,547 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:45:45,548 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-17 22:45:45,551 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-17 22:45:45,551 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:45,551 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:45,552 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:45:45,552 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:45,553 INFO L85 PathProgramCache]: Analyzing trace with hash 168877, now seen corresponding path program 1 times [2025-02-17 22:45:45,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:45:45,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026295989] [2025-02-17 22:45:45,553 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:45:45,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:45:45,554 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:45:45,557 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:45:45,557 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:45,557 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:45,557 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:45:45,558 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:45:45,559 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:45:45,559 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:45,559 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:45,560 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:45:45,560 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:45,560 INFO L85 PathProgramCache]: Analyzing trace with hash -457675242, now seen corresponding path program 1 times [2025-02-17 22:45:45,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:45:45,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893673069] [2025-02-17 22:45:45,561 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:45:45,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:45:45,564 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-02-17 22:45:45,566 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-02-17 22:45:45,566 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:45,566 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:45,566 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:45:45,566 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-02-17 22:45:45,567 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-02-17 22:45:45,567 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:45,567 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:45,572 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:45:45,629 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:45:45,629 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:45:45,629 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:45:45,629 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:45:45,629 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-17 22:45:45,629 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:45,629 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:45:45,629 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:45:45,630 INFO L132 ssoRankerPreferences]: Filename of dumped script: adfg_3_x_n_t_indep.c.bpl_petrified1_Iteration7_Lasso [2025-02-17 22:45:45,630 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:45:45,630 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:45:45,630 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:45,635 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:45,646 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:45,647 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:45,649 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:45,655 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:45,657 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:45,659 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:45,717 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:45:45,718 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-17 22:45:45,718 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:45,718 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:45,721 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:45:45,721 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2025-02-17 22:45:45,723 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:45:45,723 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:45:45,733 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-02-17 22:45:45,734 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {thread1Thread1of1ForFork0_thidvar0=0} Honda state: {thread1Thread1of1ForFork0_thidvar0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-02-17 22:45:45,738 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 [2025-02-17 22:45:45,739 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:45,739 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:45,740 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:45:45,741 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2025-02-17 22:45:45,742 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:45:45,742 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:45:45,758 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-02-17 22:45:45,758 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {b=1} Honda state: {b=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-02-17 22:45:45,763 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2025-02-17 22:45:45,763 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:45,763 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:45,765 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:45:45,791 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2025-02-17 22:45:45,791 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:45:45,791 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:45:45,803 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-02-17 22:45:45,803 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {thread2Thread1of1ForFork1_thidvar1=0} Honda state: {thread2Thread1of1ForFork1_thidvar1=2} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-02-17 22:45:45,808 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2025-02-17 22:45:45,808 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:45,809 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:45,810 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:45:45,812 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2025-02-17 22:45:45,813 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:45:45,813 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:45:45,823 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-02-17 22:45:45,823 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {thread2Thread1of1ForFork1_thidvar0=0} Honda state: {thread2Thread1of1ForFork1_thidvar0=2} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-02-17 22:45:45,844 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2025-02-17 22:45:45,844 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:45,845 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:45,846 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:45:45,848 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2025-02-17 22:45:45,849 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:45:45,849 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:45:45,872 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0 [2025-02-17 22:45:45,872 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:45,872 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:45,878 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:45:45,879 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-17 22:45:45,879 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:45:45,885 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2025-02-17 22:45:46,017 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-17 22:45:46,022 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2025-02-17 22:45:46,022 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:45:46,022 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:45:46,022 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:45:46,022 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:45:46,022 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-17 22:45:46,022 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:46,022 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:45:46,022 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:45:46,022 INFO L132 ssoRankerPreferences]: Filename of dumped script: adfg_3_x_n_t_indep.c.bpl_petrified1_Iteration7_Lasso [2025-02-17 22:45:46,022 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:45:46,022 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:45:46,023 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:46,030 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:46,032 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:46,034 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:46,038 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:46,042 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:46,043 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:46,045 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:46,104 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:45:46,104 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-17 22:45:46,104 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:46,104 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:46,106 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:45:46,108 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2025-02-17 22:45:46,109 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-02-17 22:45:46,118 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:45:46,118 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:45:46,118 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:45:46,118 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:45:46,120 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-02-17 22:45:46,120 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-02-17 22:45:46,122 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-17 22:45:46,127 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2025-02-17 22:45:46,128 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:46,128 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:46,129 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:45:46,131 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2025-02-17 22:45:46,132 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-02-17 22:45:46,141 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:45:46,142 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:45:46,142 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:45:46,142 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:45:46,143 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-02-17 22:45:46,143 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-02-17 22:45:46,146 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-17 22:45:46,151 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2025-02-17 22:45:46,151 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:46,151 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:46,153 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:45:46,153 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2025-02-17 22:45:46,155 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-02-17 22:45:46,165 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:45:46,165 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:45:46,165 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:45:46,165 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:45:46,166 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-02-17 22:45:46,166 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-02-17 22:45:46,169 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-17 22:45:46,174 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2025-02-17 22:45:46,175 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:46,175 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:46,176 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) [2025-02-17 22:45:46,178 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 [2025-02-17 22:45:46,180 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-02-17 22:45:46,189 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:45:46,190 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:45:46,190 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:45:46,190 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:45:46,192 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-02-17 22:45:46,192 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-02-17 22:45:46,196 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-17 22:45:46,201 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2025-02-17 22:45:46,201 INFO L444 ModelExtractionUtils]: 6 out of 13 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-02-17 22:45:46,201 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:46,201 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:46,203 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) [2025-02-17 22:45:46,206 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 [2025-02-17 22:45:46,206 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-17 22:45:46,221 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2025-02-17 22:45:46,221 INFO L474 LassoAnalysis]: Proved termination. [2025-02-17 22:45:46,222 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(n3, x3) = 2*n3 - 2*x3 + 1 Supporting invariants [1*t3 - 1 >= 0] [2025-02-17 22:45:46,227 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2025-02-17 22:45:46,231 INFO L156 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2025-02-17 22:45:46,248 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:46,253 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-17 22:45:46,255 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-17 22:45:46,255 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:46,255 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:45:46,257 INFO L256 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-17 22:45:46,258 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:45:46,266 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:45:46,267 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:45:46,267 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:46,267 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:45:46,267 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-17 22:45:46,268 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:45:46,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-17 22:45:46,291 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2025-02-17 22:45:46,291 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 2028 states and 7745 transitions. cyclomatic complexity: 5967 Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:45:46,352 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 2028 states and 7745 transitions. cyclomatic complexity: 5967. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 3432 states and 13248 transitions. Complement of second has 6 states. [2025-02-17 22:45:46,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2025-02-17 22:45:46,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:45:46,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 86 transitions. [2025-02-17 22:45:46,354 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 86 transitions. Stem has 5 letters. Loop has 3 letters. [2025-02-17 22:45:46,354 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:45:46,354 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 86 transitions. Stem has 8 letters. Loop has 3 letters. [2025-02-17 22:45:46,354 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:45:46,354 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 86 transitions. Stem has 5 letters. Loop has 6 letters. [2025-02-17 22:45:46,354 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:45:46,354 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 3432 states and 13248 transitions. [2025-02-17 22:45:46,380 INFO L131 ngComponentsAnalysis]: Automaton has 57 accepting balls. 171 [2025-02-17 22:45:46,386 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 3432 states to 1016 states and 3874 transitions. [2025-02-17 22:45:46,386 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 482 [2025-02-17 22:45:46,387 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 482 [2025-02-17 22:45:46,387 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1016 states and 3874 transitions. [2025-02-17 22:45:46,388 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-17 22:45:46,388 INFO L218 hiAutomatonCegarLoop]: Abstraction has 1016 states and 3874 transitions. [2025-02-17 22:45:46,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1016 states and 3874 transitions. [2025-02-17 22:45:46,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1016 to 1016. [2025-02-17 22:45:46,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1016 states, 1016 states have (on average 3.812992125984252) internal successors, (3874), 1015 states have internal predecessors, (3874), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:45:46,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1016 states to 1016 states and 3874 transitions. [2025-02-17 22:45:46,406 INFO L240 hiAutomatonCegarLoop]: Abstraction has 1016 states and 3874 transitions. [2025-02-17 22:45:46,406 INFO L432 stractBuchiCegarLoop]: Abstraction has 1016 states and 3874 transitions. [2025-02-17 22:45:46,406 INFO L338 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2025-02-17 22:45:46,406 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 1016 states and 3874 transitions. [2025-02-17 22:45:46,410 INFO L131 ngComponentsAnalysis]: Automaton has 57 accepting balls. 171 [2025-02-17 22:45:46,411 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-17 22:45:46,411 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-17 22:45:46,411 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2025-02-17 22:45:46,411 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-02-17 22:45:46,411 INFO L752 eck$LassoCheckResult]: Stem: "[148] $Ultimate##0-->$Ultimate##0: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" "[151] L17-->$Ultimate##0: Formula: (and (= 2 v_thread2Thread1of1ForFork1_thidvar1_2) (= 2 v_thread2Thread1of1ForFork1_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_2, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_thidvar0, thread2Thread1of1ForFork1_thidvar1]" "[154] L18-->$Ultimate##0: Formula: (and (= 3 v_thread3Thread1of1ForFork2_thidvar0_2) (= 3 v_thread3Thread1of1ForFork2_thidvar1_2) (= 3 v_thread3Thread1of1ForFork2_thidvar2_2)) InVars {} OutVars{thread3Thread1of1ForFork2_thidvar2=v_thread3Thread1of1ForFork2_thidvar2_2, thread3Thread1of1ForFork2_thidvar1=v_thread3Thread1of1ForFork2_thidvar1_2, thread3Thread1of1ForFork2_thidvar0=v_thread3Thread1of1ForFork2_thidvar0_2} AuxVars[] AssignedVars[thread3Thread1of1ForFork2_thidvar2, thread3Thread1of1ForFork2_thidvar1, thread3Thread1of1ForFork2_thidvar0]" "[136] $Ultimate##0-->L82: Formula: (< v_b_9 1) InVars {b=v_b_9} OutVars{b=v_b_9} AuxVars[] AssignedVars[]" "[138] L82-->L86-2: Formula: (= (+ v_t3_1 1) 0) InVars {} OutVars{t3=v_t3_1} AuxVars[] AssignedVars[t3]" [2025-02-17 22:45:46,411 INFO L754 eck$LassoCheckResult]: Loop: "[140] L86-2-->L86: Formula: (<= v_x3_2 v_n3_2) InVars {n3=v_n3_2, x3=v_x3_2} OutVars{n3=v_n3_2, x3=v_x3_2} AuxVars[] AssignedVars[]" "[143] L86-->L92: Formula: (< v_b_11 1) InVars {b=v_b_11} OutVars{b=v_b_11} AuxVars[] AssignedVars[]" "[145] L92-->L86-2: Formula: (= v_x3_6 (+ v_x3_5 v_t3_3)) InVars {t3=v_t3_3, x3=v_x3_6} OutVars{t3=v_t3_3, x3=v_x3_5} AuxVars[] AssignedVars[x3]" [2025-02-17 22:45:46,412 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:46,412 INFO L85 PathProgramCache]: Analyzing trace with hash 169961048, now seen corresponding path program 1 times [2025-02-17 22:45:46,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:45:46,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237462839] [2025-02-17 22:45:46,412 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:45:46,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:45:46,414 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-17 22:45:46,416 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-17 22:45:46,416 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:46,416 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:46,416 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:45:46,417 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-17 22:45:46,418 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-17 22:45:46,418 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:46,418 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:46,419 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:45:46,419 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:46,419 INFO L85 PathProgramCache]: Analyzing trace with hash 168909, now seen corresponding path program 1 times [2025-02-17 22:45:46,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:45:46,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533752407] [2025-02-17 22:45:46,419 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:45:46,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:45:46,421 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:45:46,421 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:45:46,421 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:46,421 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:46,421 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:45:46,422 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:45:46,422 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:45:46,422 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:46,422 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:46,423 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:45:46,423 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:46,423 INFO L85 PathProgramCache]: Analyzing trace with hash -456721898, now seen corresponding path program 1 times [2025-02-17 22:45:46,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:45:46,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065453343] [2025-02-17 22:45:46,423 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:45:46,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:45:46,425 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-02-17 22:45:46,428 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-02-17 22:45:46,428 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:46,428 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:46,428 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:45:46,429 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-02-17 22:45:46,430 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-02-17 22:45:46,430 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:46,430 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:46,432 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:45:46,485 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:45:46,485 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:45:46,485 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:45:46,485 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:45:46,485 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-17 22:45:46,485 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:46,485 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:45:46,485 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:45:46,485 INFO L132 ssoRankerPreferences]: Filename of dumped script: adfg_3_x_n_t_indep.c.bpl_petrified1_Iteration8_Lasso [2025-02-17 22:45:46,485 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:45:46,485 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:45:46,486 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:46,489 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:46,492 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:46,494 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:46,497 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:46,502 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:46,504 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:46,506 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:46,556 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:45:46,556 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-17 22:45:46,556 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:46,556 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:46,558 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) [2025-02-17 22:45:46,558 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 [2025-02-17 22:45:46,560 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:45:46,560 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:45:46,570 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-02-17 22:45:46,570 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {thread3Thread1of1ForFork2_thidvar1=0} Honda state: {thread3Thread1of1ForFork2_thidvar1=3} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-02-17 22:45:46,575 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 [2025-02-17 22:45:46,575 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:46,575 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:46,577 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) [2025-02-17 22:45:46,577 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 [2025-02-17 22:45:46,578 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:45:46,578 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:45:46,595 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-02-17 22:45:46,595 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {b=0} Honda state: {b=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-02-17 22:45:46,600 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 [2025-02-17 22:45:46,600 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:46,600 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:46,602 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) [2025-02-17 22:45:46,603 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 [2025-02-17 22:45:46,603 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:45:46,603 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:45:46,613 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-02-17 22:45:46,614 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {thread3Thread1of1ForFork2_thidvar0=0} Honda state: {thread3Thread1of1ForFork2_thidvar0=3} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-02-17 22:45:46,618 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Ended with exit code 0 [2025-02-17 22:45:46,619 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:46,619 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:46,621 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) [2025-02-17 22:45:46,621 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 [2025-02-17 22:45:46,622 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:45:46,622 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:45:46,632 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-02-17 22:45:46,632 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {thread3Thread1of1ForFork2_thidvar2=0} Honda state: {thread3Thread1of1ForFork2_thidvar2=3} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-02-17 22:45:46,637 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 [2025-02-17 22:45:46,637 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:46,637 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:46,639 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) [2025-02-17 22:45:46,640 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 [2025-02-17 22:45:46,642 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:45:46,642 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:45:46,657 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Forceful destruction successful, exit code 0 [2025-02-17 22:45:46,658 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:46,658 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:46,659 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) [2025-02-17 22:45:46,661 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 [2025-02-17 22:45:46,662 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-17 22:45:46,662 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:45:46,757 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-17 22:45:46,762 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Ended with exit code 0 [2025-02-17 22:45:46,762 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:45:46,762 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:45:46,762 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:45:46,762 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:45:46,762 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-17 22:45:46,762 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:46,762 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:45:46,762 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:45:46,762 INFO L132 ssoRankerPreferences]: Filename of dumped script: adfg_3_x_n_t_indep.c.bpl_petrified1_Iteration8_Lasso [2025-02-17 22:45:46,762 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:45:46,762 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:45:46,763 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:46,772 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:46,776 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:46,778 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:46,779 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:46,781 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:46,782 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:46,784 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:46,829 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:45:46,829 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-17 22:45:46,829 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:46,830 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:46,831 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) [2025-02-17 22:45:46,832 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 [2025-02-17 22:45:46,833 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-02-17 22:45:46,842 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:45:46,842 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:45:46,842 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:45:46,842 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:45:46,843 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-02-17 22:45:46,843 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-02-17 22:45:46,847 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-17 22:45:46,852 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Forceful destruction successful, exit code 0 [2025-02-17 22:45:46,852 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:46,852 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:46,854 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) [2025-02-17 22:45:46,854 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 [2025-02-17 22:45:46,856 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-02-17 22:45:46,865 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:45:46,866 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:45:46,866 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:45:46,866 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:45:46,867 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-02-17 22:45:46,867 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-02-17 22:45:46,871 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-17 22:45:46,873 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2025-02-17 22:45:46,873 INFO L444 ModelExtractionUtils]: 5 out of 13 variables were initially zero. Simplification set additionally 0 variables to zero. [2025-02-17 22:45:46,874 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:46,874 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:46,894 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) [2025-02-17 22:45:46,895 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 [2025-02-17 22:45:46,895 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-17 22:45:46,906 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2025-02-17 22:45:46,906 INFO L474 LassoAnalysis]: Proved termination. [2025-02-17 22:45:46,906 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(t3, n3, x3) = -1*t3 + 2*n3 - 2*x3 Supporting invariants [-1*t3 - 1 >= 0] [2025-02-17 22:45:46,912 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Forceful destruction successful, exit code 0 [2025-02-17 22:45:46,914 INFO L156 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2025-02-17 22:45:46,943 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:46,948 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-17 22:45:46,949 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-17 22:45:46,949 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:46,949 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:45:46,950 INFO L256 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-17 22:45:46,950 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:45:46,956 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:45:46,957 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:45:46,957 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:46,957 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:45:46,958 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-17 22:45:46,958 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:45:46,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-17 22:45:46,981 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2025-02-17 22:45:46,982 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 1016 states and 3874 transitions. cyclomatic complexity: 2983 Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:45:47,034 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 1016 states and 3874 transitions. cyclomatic complexity: 2983. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 2420 states and 9377 transitions. Complement of second has 6 states. [2025-02-17 22:45:47,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2025-02-17 22:45:47,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:45:47,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 73 transitions. [2025-02-17 22:45:47,035 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 73 transitions. Stem has 5 letters. Loop has 3 letters. [2025-02-17 22:45:47,035 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:45:47,035 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 73 transitions. Stem has 8 letters. Loop has 3 letters. [2025-02-17 22:45:47,035 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:45:47,035 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 73 transitions. Stem has 5 letters. Loop has 6 letters. [2025-02-17 22:45:47,035 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:45:47,035 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 2420 states and 9377 transitions. [2025-02-17 22:45:47,052 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-02-17 22:45:47,052 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 2420 states to 0 states and 0 transitions. [2025-02-17 22:45:47,052 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2025-02-17 22:45:47,052 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2025-02-17 22:45:47,052 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2025-02-17 22:45:47,052 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-02-17 22:45:47,052 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-02-17 22:45:47,052 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-02-17 22:45:47,052 INFO L432 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-02-17 22:45:47,052 INFO L338 stractBuchiCegarLoop]: ======== Iteration 9 ============ [2025-02-17 22:45:47,052 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2025-02-17 22:45:47,053 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-02-17 22:45:47,053 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2025-02-17 22:45:47,058 INFO L201 PluginConnector]: Adding new model adfg_3_x_n_t_indep.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 17.02 10:45:47 BoogieIcfgContainer [2025-02-17 22:45:47,058 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2025-02-17 22:45:47,058 INFO L158 Benchmark]: Toolchain (without parser) took 6438.46ms. Allocated memory was 155.2MB in the beginning and 448.8MB in the end (delta: 293.6MB). Free memory was 82.4MB in the beginning and 148.0MB in the end (delta: -65.6MB). Peak memory consumption was 232.4MB. Max. memory is 8.0GB. [2025-02-17 22:45:47,059 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.73ms. Allocated memory is still 155.2MB. Free memory is still 83.3MB. There was no memory consumed. Max. memory is 8.0GB. [2025-02-17 22:45:47,059 INFO L158 Benchmark]: Boogie Procedure Inliner took 20.64ms. Allocated memory is still 155.2MB. Free memory was 82.3MB in the beginning and 81.0MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 8.0GB. [2025-02-17 22:45:47,059 INFO L158 Benchmark]: Boogie Preprocessor took 15.39ms. Allocated memory is still 155.2MB. Free memory was 81.0MB in the beginning and 80.3MB in the end (delta: 726.8kB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2025-02-17 22:45:47,059 INFO L158 Benchmark]: RCFGBuilder took 212.90ms. Allocated memory is still 155.2MB. Free memory was 80.3MB in the beginning and 70.7MB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2025-02-17 22:45:47,059 INFO L158 Benchmark]: BuchiAutomizer took 6185.42ms. Allocated memory was 155.2MB in the beginning and 448.8MB in the end (delta: 293.6MB). Free memory was 70.7MB in the beginning and 148.0MB in the end (delta: -77.4MB). Peak memory consumption was 219.9MB. Max. memory is 8.0GB. [2025-02-17 22:45:47,060 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 0.73ms. Allocated memory is still 155.2MB. Free memory is still 83.3MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 20.64ms. Allocated memory is still 155.2MB. Free memory was 82.3MB in the beginning and 81.0MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 8.0GB. * Boogie Preprocessor took 15.39ms. Allocated memory is still 155.2MB. Free memory was 81.0MB in the beginning and 80.3MB in the end (delta: 726.8kB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 212.90ms. Allocated memory is still 155.2MB. Free memory was 80.3MB in the beginning and 70.7MB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * BuchiAutomizer took 6185.42ms. Allocated memory was 155.2MB in the beginning and 448.8MB in the end (delta: 293.6MB). Free memory was 70.7MB in the beginning and 148.0MB in the end (delta: -77.4MB). Peak memory consumption was 219.9MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 8 terminating modules (2 trivial, 6 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -2 * x1 + 2 * n1 + t1 and consists of 4 locations. One deterministic module has affine ranking function -1 * t1 + -2 * x1 + 2 * n1 and consists of 4 locations. One deterministic module has affine ranking function 2 * n2 + -2 * x2 + 1 and consists of 4 locations. One deterministic module has affine ranking function 2 * n2 + -2 * x2 + 1 and consists of 4 locations. One deterministic module has affine ranking function -2 * x3 + 2 * n3 + 1 and consists of 4 locations. One deterministic module has affine ranking function -1 * t3 + -2 * x3 + 2 * n3 and consists of 4 locations. 2 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 6.0s and 9 iterations. TraceHistogramMax:1. Analysis of lassos took 3.3s. Construction of modules took 0.1s. Büchi inclusion checks took 1.2s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 6. Automata minimization 0.6s AutomataMinimizationTime, 7 MinimizatonAttempts, 4708 StatesRemovedByMinimization, 4 NontrivialMinimizations. Non-live state removal took 0.5s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [6, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 517 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 517 mSDsluCounter, 844 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 369 mSDsCounter, 35 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 198 IncrementalHoareTripleChecker+Invalid, 233 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 35 mSolverCounterUnsat, 475 mSDtfsCounter, 198 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc1 concLT0 SILN1 SILU0 SILI0 SILT0 lasso6 LassoPreprocessingBenchmarks: Lassos: inital30 mio100 ax100 hnf100 lsp45 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq184 hnf95 smp100 dnf100 smp100 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 28ms VariablesStem: 1 VariablesLoop: 1 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 12 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 6 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.1s InitialAbstractionConstructionTime: 0.0s InitialAbstraction: - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2025-02-17 22:45:47,087 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Forceful destruction successful, exit code 0 [2025-02-17 22:45:47,271 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2025-02-17 22:45:47,471 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...