/root/.sdkman/candidates/java/21.0.5-tem/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/buchiAutomizer/concurrent-automaton-noLbe.epf -tc ../../../trunk/examples/toolchains/BuchiAutomizerBplInline.xml -i /storage/cav23-termute-examples/2_thr/adfg_2_x_t_indep.c.bpl -------------------------------------------------------------------------------- This is Ultimate 0.3.0-wip.dk.ample-buchi-601be74-m [2025-02-17 22:45:19,871 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-17 22:45:19,924 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/settings/buchiAutomizer/concurrent-automaton-noLbe.epf [2025-02-17 22:45:19,928 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-17 22:45:19,928 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-17 22:45:19,951 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-17 22:45:19,952 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-17 22:45:19,952 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-17 22:45:19,952 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-17 22:45:19,953 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-17 22:45:19,953 INFO L153 SettingsManager]: * Use SBE=true [2025-02-17 22:45:19,953 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2025-02-17 22:45:19,953 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2025-02-17 22:45:19,953 INFO L153 SettingsManager]: * Use old map elimination=false [2025-02-17 22:45:19,953 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2025-02-17 22:45:19,953 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2025-02-17 22:45:19,953 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2025-02-17 22:45:19,953 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-17 22:45:19,953 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2025-02-17 22:45:19,953 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-17 22:45:19,953 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-17 22:45:19,953 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-17 22:45:19,953 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-17 22:45:19,954 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2025-02-17 22:45:19,954 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2025-02-17 22:45:19,954 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2025-02-17 22:45:19,954 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-17 22:45:19,954 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-17 22:45:19,954 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-17 22:45:19,954 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2025-02-17 22:45:19,954 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-17 22:45:19,954 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-02-17 22:45:19,954 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-17 22:45:19,954 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-17 22:45:19,954 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-17 22:45:19,954 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2025-02-17 22:45:19,954 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR [2025-02-17 22:45:20,183 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-17 22:45:20,190 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-17 22:45:20,192 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-17 22:45:20,193 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2025-02-17 22:45:20,193 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2025-02-17 22:45:20,195 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/cav23-termute-examples/2_thr/adfg_2_x_t_indep.c.bpl [2025-02-17 22:45:20,196 INFO L110 BoogieParser]: Parsing: '/storage/cav23-termute-examples/2_thr/adfg_2_x_t_indep.c.bpl' [2025-02-17 22:45:20,212 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-17 22:45:20,213 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2025-02-17 22:45:20,214 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-17 22:45:20,214 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-17 22:45:20,214 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-17 22:45:20,220 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "adfg_2_x_t_indep.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:20" (1/1) ... [2025-02-17 22:45:20,225 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "adfg_2_x_t_indep.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:20" (1/1) ... [2025-02-17 22:45:20,231 INFO L138 Inliner]: procedures = 3, calls = 2, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2025-02-17 22:45:20,233 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-17 22:45:20,234 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-17 22:45:20,234 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-17 22:45:20,234 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-17 22:45:20,239 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "adfg_2_x_t_indep.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:20" (1/1) ... [2025-02-17 22:45:20,240 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "adfg_2_x_t_indep.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:20" (1/1) ... [2025-02-17 22:45:20,240 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "adfg_2_x_t_indep.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:20" (1/1) ... [2025-02-17 22:45:20,240 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "adfg_2_x_t_indep.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:20" (1/1) ... [2025-02-17 22:45:20,242 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "adfg_2_x_t_indep.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:20" (1/1) ... [2025-02-17 22:45:20,243 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "adfg_2_x_t_indep.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:20" (1/1) ... [2025-02-17 22:45:20,247 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "adfg_2_x_t_indep.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:20" (1/1) ... [2025-02-17 22:45:20,247 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "adfg_2_x_t_indep.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:20" (1/1) ... [2025-02-17 22:45:20,248 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "adfg_2_x_t_indep.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:20" (1/1) ... [2025-02-17 22:45:20,248 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-17 22:45:20,249 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-02-17 22:45:20,249 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-02-17 22:45:20,249 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-02-17 22:45:20,250 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "adfg_2_x_t_indep.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:20" (1/1) ... [2025-02-17 22:45:20,255 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:20,263 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:20,279 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 22:45:20,282 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 22:45:20,305 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2025-02-17 22:45:20,306 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-02-17 22:45:20,306 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-02-17 22:45:20,306 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2025-02-17 22:45:20,306 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-02-17 22:45:20,306 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-02-17 22:45:20,306 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2025-02-17 22:45:20,306 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-17 22:45:20,306 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-17 22:45:20,307 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 22:45:20,344 INFO L234 CfgBuilder]: Building ICFG [2025-02-17 22:45:20,345 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-17 22:45:20,418 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-17 22:45:20,419 INFO L283 CfgBuilder]: Performing block encoding [2025-02-17 22:45:20,427 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-17 22:45:20,427 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-17 22:45:20,428 INFO L201 PluginConnector]: Adding new model adfg_2_x_t_indep.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.02 10:45:20 BoogieIcfgContainer [2025-02-17 22:45:20,428 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-02-17 22:45:20,428 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2025-02-17 22:45:20,430 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2025-02-17 22:45:20,434 INFO L274 PluginConnector]: BuchiAutomizer initialized [2025-02-17 22:45:20,434 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-02-17 22:45:20,435 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "adfg_2_x_t_indep.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:20" (1/2) ... [2025-02-17 22:45:20,436 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4fa68942 and model type adfg_2_x_t_indep.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.02 10:45:20, skipping insertion in model container [2025-02-17 22:45:20,436 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-02-17 22:45:20,436 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "adfg_2_x_t_indep.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.02 10:45:20" (2/2) ... [2025-02-17 22:45:20,438 INFO L363 chiAutomizerObserver]: Analyzing ICFG adfg_2_x_t_indep.c.bpl [2025-02-17 22:45:20,488 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-02-17 22:45:20,516 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 30 places, 31 transitions, 76 flow [2025-02-17 22:45:20,531 INFO L124 PetriNetUnfolderBase]: 6/27 cut-off events. [2025-02-17 22:45:20,536 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-02-17 22:45:20,539 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36 conditions, 27 events. 6/27 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 47 event pairs, 0 based on Foata normal form. 0/21 useless extension candidates. Maximal degree in co-relation 25. Up to 4 conditions per place. [2025-02-17 22:45:20,539 INFO L82 GeneralOperation]: Start removeDead. Operand has 30 places, 31 transitions, 76 flow [2025-02-17 22:45:20,544 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 28 places, 27 transitions, 66 flow [2025-02-17 22:45:20,555 INFO L306 stractBuchiCegarLoop]: Interprodecural is true [2025-02-17 22:45:20,555 INFO L307 stractBuchiCegarLoop]: Hoare is None [2025-02-17 22:45:20,555 INFO L308 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2025-02-17 22:45:20,555 INFO L309 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2025-02-17 22:45:20,555 INFO L310 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2025-02-17 22:45:20,555 INFO L311 stractBuchiCegarLoop]: Difference is false [2025-02-17 22:45:20,555 INFO L312 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2025-02-17 22:45:20,555 INFO L316 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2025-02-17 22:45:20,559 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 0 states, but on-demand construction may add more states [2025-02-17 22:45:20,598 INFO L131 ngComponentsAnalysis]: Automaton has 13 accepting balls. 64 [2025-02-17 22:45:20,598 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-17 22:45:20,598 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-17 22:45:20,603 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2025-02-17 22:45:20,603 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-02-17 22:45:20,603 INFO L338 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2025-02-17 22:45:20,603 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 101 states, but on-demand construction may add more states [2025-02-17 22:45:20,607 INFO L131 ngComponentsAnalysis]: Automaton has 13 accepting balls. 64 [2025-02-17 22:45:20,609 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-17 22:45:20,609 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-17 22:45:20,610 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2025-02-17 22:45:20,610 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-02-17 22:45:20,615 INFO L752 eck$LassoCheckResult]: Stem: "[100] $Ultimate##0-->$Ultimate##0: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" "[76] $Ultimate##0-->L25: Formula: (<= 1 v_b_2) InVars {b=v_b_2} OutVars{b=v_b_2} AuxVars[] AssignedVars[]" "[78] L25-->L33-2: Formula: (= v_t1_2 1) InVars {} OutVars{t1=v_t1_2} AuxVars[] AssignedVars[t1]" [2025-02-17 22:45:20,616 INFO L754 eck$LassoCheckResult]: Loop: "[81] L33-2-->L33: Formula: (<= v_x1_4 v_n_2) InVars {x1=v_x1_4, n=v_n_2} OutVars{x1=v_x1_4, n=v_n_2} AuxVars[] AssignedVars[]" "[84] L33-->L39: Formula: (< v_b_1 1) InVars {b=v_b_1} OutVars{b=v_b_1} AuxVars[] AssignedVars[]" "[86] L39-->L33-2: 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 22:45:20,620 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:20,621 INFO L85 PathProgramCache]: Analyzing trace with hash 128325, now seen corresponding path program 1 times [2025-02-17 22:45:20,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:45:20,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444141218] [2025-02-17 22:45:20,626 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:45:20,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:45:20,672 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:45:20,679 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:45:20,680 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:20,680 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:20,681 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:45:20,684 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:45:20,687 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:45:20,687 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:20,687 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:20,699 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:45:20,704 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:20,704 INFO L85 PathProgramCache]: Analyzing trace with hash 110322, now seen corresponding path program 1 times [2025-02-17 22:45:20,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:45:20,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115576656] [2025-02-17 22:45:20,704 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:45:20,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:45:20,709 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:45:20,715 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:45:20,715 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:20,715 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:20,715 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:45:20,716 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:45:20,719 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:45:20,720 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:20,720 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:20,721 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:45:20,722 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:20,722 INFO L85 PathProgramCache]: Analyzing trace with hash -471956690, now seen corresponding path program 1 times [2025-02-17 22:45:20,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:45:20,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484898350] [2025-02-17 22:45:20,722 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:45:20,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:45:20,727 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-17 22:45:20,730 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-17 22:45:20,730 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:20,730 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:45:20,780 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 22:45:20,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-17 22:45:20,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1484898350] [2025-02-17 22:45:20,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1484898350] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-17 22:45:20,781 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-17 22:45:20,784 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-17 22:45:20,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801442396] [2025-02-17 22:45:20,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-17 22:45:20,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-17 22:45:20,846 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-17 22:45:20,847 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-17 22:45:20,849 INFO L87 Difference]: Start difference. First operand currently 101 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 22:45:20,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-17 22:45:20,898 INFO L93 Difference]: Finished difference Result 155 states and 337 transitions. [2025-02-17 22:45:20,899 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 155 states and 337 transitions. [2025-02-17 22:45:20,905 INFO L131 ngComponentsAnalysis]: Automaton has 26 accepting balls. 90 [2025-02-17 22:45:20,915 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 155 states to 139 states and 309 transitions. [2025-02-17 22:45:20,916 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 139 [2025-02-17 22:45:20,917 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 139 [2025-02-17 22:45:20,917 INFO L73 IsDeterministic]: Start isDeterministic. Operand 139 states and 309 transitions. [2025-02-17 22:45:20,918 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-02-17 22:45:20,918 INFO L218 hiAutomatonCegarLoop]: Abstraction has 139 states and 309 transitions. [2025-02-17 22:45:20,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states and 309 transitions. [2025-02-17 22:45:20,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 139. [2025-02-17 22:45:20,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 139 states have (on average 2.223021582733813) internal successors, (309), 138 states have internal predecessors, (309), 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 22:45:20,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 309 transitions. [2025-02-17 22:45:20,968 INFO L240 hiAutomatonCegarLoop]: Abstraction has 139 states and 309 transitions. [2025-02-17 22:45:20,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-17 22:45:20,972 INFO L432 stractBuchiCegarLoop]: Abstraction has 139 states and 309 transitions. [2025-02-17 22:45:20,972 INFO L338 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2025-02-17 22:45:20,972 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 139 states and 309 transitions. [2025-02-17 22:45:20,974 INFO L131 ngComponentsAnalysis]: Automaton has 26 accepting balls. 90 [2025-02-17 22:45:20,974 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-17 22:45:20,974 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-17 22:45:20,974 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2025-02-17 22:45:20,974 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-02-17 22:45:20,975 INFO L752 eck$LassoCheckResult]: Stem: "[100] $Ultimate##0-->$Ultimate##0: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" "[76] $Ultimate##0-->L25: Formula: (<= 1 v_b_2) InVars {b=v_b_2} OutVars{b=v_b_2} AuxVars[] AssignedVars[]" "[78] L25-->L33-2: Formula: (= v_t1_2 1) InVars {} OutVars{t1=v_t1_2} AuxVars[] AssignedVars[t1]" [2025-02-17 22:45:20,975 INFO L754 eck$LassoCheckResult]: Loop: "[81] L33-2-->L33: Formula: (<= v_x1_4 v_n_2) InVars {x1=v_x1_4, n=v_n_2} OutVars{x1=v_x1_4, n=v_n_2} AuxVars[] AssignedVars[]" "[83] L33-->L35: Formula: (<= 1 v_b_4) InVars {b=v_b_4} OutVars{b=v_b_4} AuxVars[] AssignedVars[]" "[85] L35-->L33-2: 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 22:45:20,979 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:20,979 INFO L85 PathProgramCache]: Analyzing trace with hash 128325, now seen corresponding path program 2 times [2025-02-17 22:45:20,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:45:20,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598796155] [2025-02-17 22:45:20,979 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-17 22:45:20,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:45:20,983 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:45:20,984 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:45:20,984 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-17 22:45:20,984 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:20,984 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:45:20,985 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:45:20,985 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:45:20,985 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:20,985 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:20,986 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:45:20,988 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:20,989 INFO L85 PathProgramCache]: Analyzing trace with hash 110290, now seen corresponding path program 1 times [2025-02-17 22:45:20,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:45:20,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169346711] [2025-02-17 22:45:20,989 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:45:20,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:45:20,991 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:45:20,992 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:45:20,992 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:20,992 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:20,993 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:45:20,993 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:45:20,994 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:45:20,994 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:20,994 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:20,998 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:45:21,000 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:21,000 INFO L85 PathProgramCache]: Analyzing trace with hash -471956722, now seen corresponding path program 1 times [2025-02-17 22:45:21,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:45:21,000 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652817088] [2025-02-17 22:45:21,000 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:45:21,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:45:21,002 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-17 22:45:21,027 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-17 22:45:21,027 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:21,027 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:21,027 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:45:21,028 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-17 22:45:21,030 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-17 22:45:21,030 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:21,030 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:21,031 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:45:21,085 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:45:21,086 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:45:21,086 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:45:21,086 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:45:21,086 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-17 22:45:21,086 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:21,086 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:45:21,086 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:45:21,086 INFO L132 ssoRankerPreferences]: Filename of dumped script: adfg_2_x_t_indep.c.bpl_petrified1_Iteration2_Lasso [2025-02-17 22:45:21,086 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:45:21,086 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:45:21,103 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:21,125 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:21,143 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:21,196 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:45:21,197 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-17 22:45:21,198 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:21,198 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:21,200 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 22:45:21,202 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 22:45:21,203 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:45:21,203 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:45:21,221 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 22:45:21,221 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:21,222 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:21,223 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 22:45:21,224 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 22:45:21,226 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-17 22:45:21,226 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:45:21,364 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-17 22:45:21,369 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 22:45:21,369 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:45:21,369 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:45:21,370 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:45:21,370 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:45:21,370 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-17 22:45:21,370 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:21,370 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:45:21,370 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:45:21,370 INFO L132 ssoRankerPreferences]: Filename of dumped script: adfg_2_x_t_indep.c.bpl_petrified1_Iteration2_Lasso [2025-02-17 22:45:21,370 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:45:21,370 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:45:21,371 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:21,376 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:21,381 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:21,418 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:45:21,420 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-17 22:45:21,422 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:21,422 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:21,426 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 22:45:21,427 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 22:45:21,429 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 22:45:21,439 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:45:21,440 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:45:21,440 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:45:21,440 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:45:21,445 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-02-17 22:45:21,445 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-02-17 22:45:21,451 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-17 22:45:21,457 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2025-02-17 22:45:21,457 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:21,457 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:21,459 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 22:45:21,460 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 22:45:21,461 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 22:45:21,470 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:45:21,470 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:45:21,470 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:45:21,470 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:45:21,473 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-02-17 22:45:21,473 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-02-17 22:45:21,479 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-17 22:45:21,485 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2025-02-17 22:45:21,485 INFO L444 ModelExtractionUtils]: 6 out of 13 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-02-17 22:45:21,488 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:21,488 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:21,490 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 22:45:21,491 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 22:45:21,493 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-17 22:45:21,503 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2025-02-17 22:45:21,503 INFO L474 LassoAnalysis]: Proved termination. [2025-02-17 22:45:21,504 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(n, x1) = 2*n - 2*x1 + 1 Supporting invariants [1*t1 - 1 >= 0] [2025-02-17 22:45:21,509 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2025-02-17 22:45:21,513 INFO L156 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2025-02-17 22:45:21,540 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:21,545 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:45:21,546 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:45:21,546 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:21,546 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:45:21,547 INFO L256 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-17 22:45:21,547 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:45:21,555 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:45:21,556 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:45:21,556 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:21,556 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:45:21,556 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-17 22:45:21,557 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:45:21,590 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 22:45:21,592 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 22:45:21,593 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 139 states and 309 transitions. cyclomatic complexity: 196 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 22:45:21,666 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 139 states and 309 transitions. cyclomatic complexity: 196. 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 277 states and 645 transitions. Complement of second has 6 states. [2025-02-17 22:45:21,667 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 22:45:21,668 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 22:45:21,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 63 transitions. [2025-02-17 22:45:21,670 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 63 transitions. Stem has 3 letters. Loop has 3 letters. [2025-02-17 22:45:21,672 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:45:21,672 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 63 transitions. Stem has 6 letters. Loop has 3 letters. [2025-02-17 22:45:21,672 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:45:21,672 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 63 transitions. Stem has 3 letters. Loop has 6 letters. [2025-02-17 22:45:21,672 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:45:21,672 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 277 states and 645 transitions. [2025-02-17 22:45:21,680 INFO L131 ngComponentsAnalysis]: Automaton has 32 accepting balls. 108 [2025-02-17 22:45:21,682 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 277 states to 230 states and 530 transitions. [2025-02-17 22:45:21,682 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 180 [2025-02-17 22:45:21,682 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 201 [2025-02-17 22:45:21,682 INFO L73 IsDeterministic]: Start isDeterministic. Operand 230 states and 530 transitions. [2025-02-17 22:45:21,682 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-17 22:45:21,685 INFO L218 hiAutomatonCegarLoop]: Abstraction has 230 states and 530 transitions. [2025-02-17 22:45:21,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states and 530 transitions. [2025-02-17 22:45:21,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 193. [2025-02-17 22:45:21,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 193 states have (on average 2.383419689119171) internal successors, (460), 192 states have internal predecessors, (460), 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 22:45:21,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 460 transitions. [2025-02-17 22:45:21,694 INFO L240 hiAutomatonCegarLoop]: Abstraction has 193 states and 460 transitions. [2025-02-17 22:45:21,694 INFO L432 stractBuchiCegarLoop]: Abstraction has 193 states and 460 transitions. [2025-02-17 22:45:21,694 INFO L338 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2025-02-17 22:45:21,694 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 193 states and 460 transitions. [2025-02-17 22:45:21,695 INFO L131 ngComponentsAnalysis]: Automaton has 29 accepting balls. 99 [2025-02-17 22:45:21,695 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-17 22:45:21,695 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-17 22:45:21,697 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2025-02-17 22:45:21,697 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-02-17 22:45:21,697 INFO L752 eck$LassoCheckResult]: Stem: "[100] $Ultimate##0-->$Ultimate##0: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" "[77] $Ultimate##0-->L29: Formula: (< v_b_3 1) InVars {b=v_b_3} OutVars{b=v_b_3} AuxVars[] AssignedVars[]" "[79] L29-->L33-2: Formula: (= (+ v_t1_3 1) 0) InVars {} OutVars{t1=v_t1_3} AuxVars[] AssignedVars[t1]" [2025-02-17 22:45:21,697 INFO L754 eck$LassoCheckResult]: Loop: "[81] L33-2-->L33: Formula: (<= v_x1_4 v_n_2) InVars {x1=v_x1_4, n=v_n_2} OutVars{x1=v_x1_4, n=v_n_2} AuxVars[] AssignedVars[]" "[84] L33-->L39: Formula: (< v_b_1 1) InVars {b=v_b_1} OutVars{b=v_b_1} AuxVars[] AssignedVars[]" "[86] L39-->L33-2: 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 22:45:21,698 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:21,698 INFO L85 PathProgramCache]: Analyzing trace with hash 128357, now seen corresponding path program 1 times [2025-02-17 22:45:21,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:45:21,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691388242] [2025-02-17 22:45:21,698 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:45:21,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:45:21,700 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:45:21,700 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:45:21,700 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:21,700 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:21,700 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:45:21,701 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:45:21,701 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:45:21,701 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:21,702 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:21,702 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:45:21,702 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:21,702 INFO L85 PathProgramCache]: Analyzing trace with hash 110322, now seen corresponding path program 2 times [2025-02-17 22:45:21,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:45:21,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203074003] [2025-02-17 22:45:21,703 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-17 22:45:21,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:45:21,704 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:45:21,704 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:45:21,704 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-17 22:45:21,704 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:21,704 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:45:21,706 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:45:21,707 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:45:21,707 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:21,707 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:21,708 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:45:21,708 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:21,708 INFO L85 PathProgramCache]: Analyzing trace with hash -471003378, now seen corresponding path program 1 times [2025-02-17 22:45:21,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:45:21,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296845703] [2025-02-17 22:45:21,708 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:45:21,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:45:21,709 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-17 22:45:21,710 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-17 22:45:21,711 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:21,711 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:21,711 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:45:21,711 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-17 22:45:21,714 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-17 22:45:21,714 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:21,714 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:21,715 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:45:21,750 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:45:21,750 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:45:21,750 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:45:21,750 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:45:21,750 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-17 22:45:21,750 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:21,750 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:45:21,750 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:45:21,750 INFO L132 ssoRankerPreferences]: Filename of dumped script: adfg_2_x_t_indep.c.bpl_petrified1_Iteration3_Lasso [2025-02-17 22:45:21,750 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:45:21,750 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:45:21,751 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:21,753 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:21,756 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:21,792 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:45:21,792 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-17 22:45:21,792 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:21,792 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:21,794 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 22:45:21,795 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 22:45:21,796 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:45:21,796 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:45:21,807 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-02-17 22:45:21,808 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 22:45:21,812 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 22:45:21,813 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:21,813 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:21,814 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 22:45:21,815 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 22:45:21,817 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:45:21,817 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:45:21,833 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-02-17 22:45:21,833 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {b=0} Honda state: {b=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-02-17 22:45:21,838 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 22:45:21,838 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:21,838 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:21,840 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 22:45:21,840 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 22:45:21,841 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:45:21,841 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:45:21,856 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2025-02-17 22:45:21,857 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:21,857 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:21,858 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 22:45:21,859 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 22:45:21,860 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-17 22:45:21,860 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:45:21,958 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-17 22:45:21,963 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2025-02-17 22:45:21,963 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:45:21,963 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:45:21,963 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:45:21,963 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:45:21,963 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-17 22:45:21,964 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:21,964 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:45:21,964 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:45:21,964 INFO L132 ssoRankerPreferences]: Filename of dumped script: adfg_2_x_t_indep.c.bpl_petrified1_Iteration3_Lasso [2025-02-17 22:45:21,964 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:45:21,964 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:45:21,964 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:21,969 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:21,972 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:22,005 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:45:22,005 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-17 22:45:22,005 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:22,005 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:22,009 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 22:45:22,009 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 22:45:22,010 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 22:45:22,019 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:45:22,019 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:45:22,019 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:45:22,020 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:45:22,022 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-02-17 22:45:22,022 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-02-17 22:45:22,030 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-17 22:45:22,036 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2025-02-17 22:45:22,037 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:22,037 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:22,041 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 22:45:22,042 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 22:45:22,042 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 22:45:22,053 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:45:22,053 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:45:22,053 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:45:22,053 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:45:22,055 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-02-17 22:45:22,055 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-02-17 22:45:22,058 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-17 22:45:22,063 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2025-02-17 22:45:22,064 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:22,064 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:22,091 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 22:45:22,092 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 22:45:22,093 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 22:45:22,102 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:45:22,102 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:45:22,102 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:45:22,103 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:45:22,106 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-02-17 22:45:22,106 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-02-17 22:45:22,111 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-17 22:45:22,117 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2025-02-17 22:45:22,117 INFO L444 ModelExtractionUtils]: 6 out of 13 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-02-17 22:45:22,117 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:22,117 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:22,121 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 22:45:22,122 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 22:45:22,122 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-17 22:45:22,132 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2025-02-17 22:45:22,133 INFO L474 LassoAnalysis]: Proved termination. [2025-02-17 22:45:22,133 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(n, x1) = 2*n - 2*x1 + 1 Supporting invariants [-1*t1 - 1 >= 0] [2025-02-17 22:45:22,138 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2025-02-17 22:45:22,142 INFO L156 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2025-02-17 22:45:22,167 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:22,172 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:45:22,172 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:45:22,172 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:22,172 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:45:22,173 INFO L256 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-17 22:45:22,173 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:45:22,179 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:45:22,180 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:45:22,180 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:22,180 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:45:22,180 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-17 22:45:22,181 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:45:22,210 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 22:45:22,210 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 22:45:22,210 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 193 states and 460 transitions. cyclomatic complexity: 302 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 22:45:22,278 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 193 states and 460 transitions. cyclomatic complexity: 302. 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 391 states and 966 transitions. Complement of second has 7 states. [2025-02-17 22:45:22,280 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 22:45:22,281 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 22:45:22,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 68 transitions. [2025-02-17 22:45:22,281 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 68 transitions. Stem has 3 letters. Loop has 3 letters. [2025-02-17 22:45:22,281 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:45:22,281 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 68 transitions. Stem has 6 letters. Loop has 3 letters. [2025-02-17 22:45:22,282 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:45:22,282 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 68 transitions. Stem has 3 letters. Loop has 6 letters. [2025-02-17 22:45:22,282 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:45:22,282 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 391 states and 966 transitions. [2025-02-17 22:45:22,288 INFO L131 ngComponentsAnalysis]: Automaton has 35 accepting balls. 111 [2025-02-17 22:45:22,294 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 391 states to 336 states and 801 transitions. [2025-02-17 22:45:22,294 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 227 [2025-02-17 22:45:22,295 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 272 [2025-02-17 22:45:22,295 INFO L73 IsDeterministic]: Start isDeterministic. Operand 336 states and 801 transitions. [2025-02-17 22:45:22,295 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-17 22:45:22,295 INFO L218 hiAutomatonCegarLoop]: Abstraction has 336 states and 801 transitions. [2025-02-17 22:45:22,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states and 801 transitions. [2025-02-17 22:45:22,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 229. [2025-02-17 22:45:22,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229 states, 229 states have (on average 2.493449781659389) internal successors, (571), 228 states have internal predecessors, (571), 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 22:45:22,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 571 transitions. [2025-02-17 22:45:22,304 INFO L240 hiAutomatonCegarLoop]: Abstraction has 229 states and 571 transitions. [2025-02-17 22:45:22,304 INFO L432 stractBuchiCegarLoop]: Abstraction has 229 states and 571 transitions. [2025-02-17 22:45:22,304 INFO L338 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2025-02-17 22:45:22,304 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 229 states and 571 transitions. [2025-02-17 22:45:22,305 INFO L131 ngComponentsAnalysis]: Automaton has 26 accepting balls. 84 [2025-02-17 22:45:22,305 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-17 22:45:22,305 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-17 22:45:22,306 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2025-02-17 22:45:22,306 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-02-17 22:45:22,306 INFO L752 eck$LassoCheckResult]: Stem: "[100] $Ultimate##0-->$Ultimate##0: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" "[103] L14-->$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]" "[87] $Ultimate##0-->L49: Formula: (<= 1 v_b_7) InVars {b=v_b_7} OutVars{b=v_b_7} AuxVars[] AssignedVars[]" "[89] L49-->L57-2: Formula: (= v_t2_3 1) InVars {} OutVars{t2=v_t2_3} AuxVars[] AssignedVars[t2]" [2025-02-17 22:45:22,306 INFO L754 eck$LassoCheckResult]: Loop: "[92] L57-2-->L57: Formula: (<= v_x2_1 v_n_3) InVars {x2=v_x2_1, n=v_n_3} OutVars{x2=v_x2_1, n=v_n_3} AuxVars[] AssignedVars[]" "[94] L57-->L59: Formula: (<= 1 v_b_5) InVars {b=v_b_5} OutVars{b=v_b_5} AuxVars[] AssignedVars[]" "[96] L59-->L57-2: 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 22:45:22,306 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:22,306 INFO L85 PathProgramCache]: Analyzing trace with hash 4004390, now seen corresponding path program 1 times [2025-02-17 22:45:22,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:45:22,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935468968] [2025-02-17 22:45:22,307 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:45:22,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:45:22,308 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-17 22:45:22,309 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-17 22:45:22,309 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:22,309 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:22,309 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:45:22,310 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-17 22:45:22,310 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-17 22:45:22,310 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:22,310 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:22,311 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:45:22,311 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:22,311 INFO L85 PathProgramCache]: Analyzing trace with hash 121213, now seen corresponding path program 1 times [2025-02-17 22:45:22,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:45:22,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445998719] [2025-02-17 22:45:22,311 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:45:22,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:45:22,316 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:45:22,317 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:45:22,317 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:22,317 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:22,317 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:45:22,318 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:45:22,318 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:45:22,318 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:22,318 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:22,321 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:45:22,321 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:22,321 INFO L85 PathProgramCache]: Analyzing trace with hash -964210376, now seen corresponding path program 1 times [2025-02-17 22:45:22,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:45:22,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332422643] [2025-02-17 22:45:22,321 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:45:22,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:45:22,323 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-17 22:45:22,326 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-17 22:45:22,327 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:22,327 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:22,327 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:45:22,327 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-17 22:45:22,328 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-17 22:45:22,328 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:22,328 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:22,329 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:45:22,370 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:45:22,370 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:45:22,370 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:45:22,370 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:45:22,370 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-17 22:45:22,370 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:22,370 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:45:22,370 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:45:22,370 INFO L132 ssoRankerPreferences]: Filename of dumped script: adfg_2_x_t_indep.c.bpl_petrified1_Iteration4_Lasso [2025-02-17 22:45:22,370 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:45:22,370 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:45:22,371 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:22,375 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:22,378 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:22,381 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:22,385 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:22,414 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2025-02-17 22:45:22,421 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2025-02-17 22:45:22,435 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:45:22,435 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-17 22:45:22,435 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:22,435 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:22,437 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 22:45:22,438 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 22:45:22,438 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:45:22,438 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:45:22,449 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-02-17 22:45:22,449 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 22:45:22,455 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 22:45:22,455 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:22,455 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:22,457 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 22:45:22,458 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 22:45:22,459 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:45:22,459 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:45:22,476 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-02-17 22:45:22,476 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {b=1} Honda state: {b=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2025-02-17 22:45:22,481 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 22:45:22,482 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:22,482 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:22,483 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 22:45:22,484 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 22:45:22,485 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:45:22,485 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:45:22,495 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-02-17 22:45:22,496 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 22:45:22,501 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 22:45:22,501 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:22,501 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:22,503 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 22:45:22,503 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 22:45:22,504 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:45:22,504 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:45:22,521 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2025-02-17 22:45:22,521 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:22,521 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:22,523 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 22:45:22,524 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 22:45:22,525 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-17 22:45:22,525 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:45:22,659 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-17 22:45:22,664 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 22:45:22,664 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:45:22,664 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:45:22,664 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:45:22,664 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:45:22,665 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-17 22:45:22,665 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:22,665 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:45:22,665 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:45:22,665 INFO L132 ssoRankerPreferences]: Filename of dumped script: adfg_2_x_t_indep.c.bpl_petrified1_Iteration4_Lasso [2025-02-17 22:45:22,665 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:45:22,665 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:45:22,666 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:22,671 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:22,676 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:22,679 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:22,681 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:22,725 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:45:22,725 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-17 22:45:22,725 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:22,725 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:22,728 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 22:45:22,729 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 22:45:22,730 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 22:45:22,739 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:45:22,740 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:45:22,740 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:45:22,740 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:45:22,741 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-02-17 22:45:22,741 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-02-17 22:45:22,743 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-17 22:45:22,748 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2025-02-17 22:45:22,749 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:22,749 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:22,750 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 22:45:22,751 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 22:45:22,752 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 22:45:22,761 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:45:22,762 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:45:22,762 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:45:22,762 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:45:22,766 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-02-17 22:45:22,766 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-02-17 22:45:22,769 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-17 22:45:22,774 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Ended with exit code 0 [2025-02-17 22:45:22,777 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:22,778 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:22,779 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 22:45:22,782 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 22:45:22,783 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 22:45:22,793 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:45:22,793 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:45:22,793 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:45:22,793 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:45:22,794 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-02-17 22:45:22,794 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-02-17 22:45:22,797 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-17 22:45:22,802 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2025-02-17 22:45:22,802 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:22,802 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:22,804 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 22:45:22,805 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 22:45:22,806 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 22:45:22,815 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:45:22,815 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:45:22,815 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:45:22,815 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:45:22,816 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-02-17 22:45:22,816 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-02-17 22:45:22,819 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-17 22:45:22,824 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 22:45:22,825 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:22,825 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:22,826 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 22:45:22,827 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 22:45:22,828 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 22:45:22,837 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:45:22,837 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:45:22,837 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:45:22,837 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:45:22,840 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-02-17 22:45:22,840 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-02-17 22:45:22,845 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-17 22:45:22,850 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2025-02-17 22:45:22,850 INFO L444 ModelExtractionUtils]: 6 out of 13 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-02-17 22:45:22,850 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:22,850 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:22,852 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 22:45:22,853 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 22:45:22,854 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-17 22:45:22,865 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2025-02-17 22:45:22,865 INFO L474 LassoAnalysis]: Proved termination. [2025-02-17 22:45:22,865 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(n, x2) = 2*n - 2*x2 + 1 Supporting invariants [1*t2 - 1 >= 0] [2025-02-17 22:45:22,870 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 22:45:22,872 INFO L156 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2025-02-17 22:45:22,889 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:22,892 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-17 22:45:22,893 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-17 22:45:22,893 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:22,893 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:45:22,893 INFO L256 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-17 22:45:22,893 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:45:22,908 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:45:22,909 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:45:22,909 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:22,909 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:45:22,910 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-17 22:45:22,910 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:45:22,938 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 22:45:22,938 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 22:45:22,939 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 229 states and 571 transitions. cyclomatic complexity: 381 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 22:45:22,985 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 229 states and 571 transitions. cyclomatic complexity: 381. 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 434 states and 1089 transitions. Complement of second has 6 states. [2025-02-17 22:45:22,986 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 22:45:22,989 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 22:45:22,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 61 transitions. [2025-02-17 22:45:22,989 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 61 transitions. Stem has 4 letters. Loop has 3 letters. [2025-02-17 22:45:22,989 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:45:22,989 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 61 transitions. Stem has 7 letters. Loop has 3 letters. [2025-02-17 22:45:22,989 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:45:22,989 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 61 transitions. Stem has 4 letters. Loop has 6 letters. [2025-02-17 22:45:22,989 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:45:22,989 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 434 states and 1089 transitions. [2025-02-17 22:45:22,992 INFO L131 ngComponentsAnalysis]: Automaton has 31 accepting balls. 99 [2025-02-17 22:45:22,994 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 434 states to 251 states and 615 transitions. [2025-02-17 22:45:22,994 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 167 [2025-02-17 22:45:22,994 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 180 [2025-02-17 22:45:22,995 INFO L73 IsDeterministic]: Start isDeterministic. Operand 251 states and 615 transitions. [2025-02-17 22:45:22,995 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-17 22:45:22,995 INFO L218 hiAutomatonCegarLoop]: Abstraction has 251 states and 615 transitions. [2025-02-17 22:45:22,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states and 615 transitions. [2025-02-17 22:45:23,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 232. [2025-02-17 22:45:23,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232 states, 232 states have (on average 2.4956896551724137) internal successors, (579), 231 states have internal predecessors, (579), 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 22:45:23,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 579 transitions. [2025-02-17 22:45:23,010 INFO L240 hiAutomatonCegarLoop]: Abstraction has 232 states and 579 transitions. [2025-02-17 22:45:23,010 INFO L432 stractBuchiCegarLoop]: Abstraction has 232 states and 579 transitions. [2025-02-17 22:45:23,010 INFO L338 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2025-02-17 22:45:23,010 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 232 states and 579 transitions. [2025-02-17 22:45:23,012 INFO L131 ngComponentsAnalysis]: Automaton has 29 accepting balls. 93 [2025-02-17 22:45:23,012 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-17 22:45:23,012 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-17 22:45:23,012 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2025-02-17 22:45:23,012 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-02-17 22:45:23,012 INFO L752 eck$LassoCheckResult]: Stem: "[100] $Ultimate##0-->$Ultimate##0: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" "[103] L14-->$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]" "[88] $Ultimate##0-->L53: Formula: (< v_b_8 1) InVars {b=v_b_8} OutVars{b=v_b_8} AuxVars[] AssignedVars[]" "[90] L53-->L57-2: Formula: (= (+ v_t2_4 1) 0) InVars {} OutVars{t2=v_t2_4} AuxVars[] AssignedVars[t2]" [2025-02-17 22:45:23,012 INFO L754 eck$LassoCheckResult]: Loop: "[92] L57-2-->L57: Formula: (<= v_x2_1 v_n_3) InVars {x2=v_x2_1, n=v_n_3} OutVars{x2=v_x2_1, n=v_n_3} AuxVars[] AssignedVars[]" "[95] L57-->L63: Formula: (< v_b_6 1) InVars {b=v_b_6} OutVars{b=v_b_6} AuxVars[] AssignedVars[]" "[97] L63-->L57-2: 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 22:45:23,012 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:23,013 INFO L85 PathProgramCache]: Analyzing trace with hash 4004422, now seen corresponding path program 1 times [2025-02-17 22:45:23,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:45:23,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022717245] [2025-02-17 22:45:23,013 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:45:23,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:45:23,018 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-17 22:45:23,019 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-17 22:45:23,019 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:23,019 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:23,019 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:45:23,020 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-17 22:45:23,021 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-17 22:45:23,021 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:23,021 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:23,021 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:45:23,021 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:23,022 INFO L85 PathProgramCache]: Analyzing trace with hash 121245, now seen corresponding path program 1 times [2025-02-17 22:45:23,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:45:23,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285344434] [2025-02-17 22:45:23,022 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:45:23,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:45:23,023 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:45:23,023 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:45:23,023 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:23,023 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:23,023 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:45:23,024 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:45:23,025 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:45:23,025 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:23,025 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:23,029 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:45:23,029 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:23,029 INFO L85 PathProgramCache]: Analyzing trace with hash -963257032, now seen corresponding path program 1 times [2025-02-17 22:45:23,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:45:23,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096761030] [2025-02-17 22:45:23,029 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:45:23,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:45:23,031 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-17 22:45:23,036 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-17 22:45:23,036 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:23,036 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:23,037 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:45:23,038 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-17 22:45:23,039 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-17 22:45:23,039 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:23,039 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:23,040 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:45:23,089 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:45:23,089 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:45:23,089 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:45:23,089 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:45:23,089 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-17 22:45:23,089 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:23,089 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:45:23,089 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:45:23,089 INFO L132 ssoRankerPreferences]: Filename of dumped script: adfg_2_x_t_indep.c.bpl_petrified1_Iteration5_Lasso [2025-02-17 22:45:23,089 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:45:23,089 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:45:23,090 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:23,096 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:23,099 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:23,100 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:23,102 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:23,147 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:45:23,147 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-17 22:45:23,147 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:23,147 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:23,151 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 22:45:23,152 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 22:45:23,154 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:45:23,154 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:45:23,170 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2025-02-17 22:45:23,170 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:23,170 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:23,172 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 22:45:23,173 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 22:45:23,175 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-17 22:45:23,175 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:45:23,276 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-17 22:45:23,280 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 22:45:23,281 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:45:23,281 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:45:23,281 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:45:23,281 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:45:23,281 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-17 22:45:23,281 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:23,281 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:45:23,281 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:45:23,281 INFO L132 ssoRankerPreferences]: Filename of dumped script: adfg_2_x_t_indep.c.bpl_petrified1_Iteration5_Lasso [2025-02-17 22:45:23,281 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:45:23,281 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:45:23,282 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:23,284 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:23,289 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:23,293 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:23,298 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:23,327 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:45:23,327 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-17 22:45:23,327 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:23,327 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:23,329 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 22:45:23,330 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 22:45:23,331 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 22:45:23,340 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:45:23,340 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:45:23,340 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:45:23,340 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:45:23,341 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-02-17 22:45:23,341 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-02-17 22:45:23,344 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-17 22:45:23,349 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 22:45:23,349 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:23,350 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:23,351 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 22:45:23,352 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 22:45:23,353 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 22:45:23,362 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:45:23,362 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:45:23,362 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:45:23,362 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:45:23,364 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-02-17 22:45:23,365 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-02-17 22:45:23,367 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-17 22:45:23,372 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2025-02-17 22:45:23,372 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:23,372 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:23,374 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 22:45:23,374 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 22:45:23,375 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 22:45:23,386 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:45:23,386 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:45:23,386 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:45:23,386 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:45:23,388 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2025-02-17 22:45:23,388 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2025-02-17 22:45:23,392 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-17 22:45:23,396 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2025-02-17 22:45:23,396 INFO L444 ModelExtractionUtils]: 6 out of 13 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-02-17 22:45:23,396 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:23,396 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:23,398 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 22:45:23,399 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 22:45:23,400 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-17 22:45:23,410 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2025-02-17 22:45:23,411 INFO L474 LassoAnalysis]: Proved termination. [2025-02-17 22:45:23,411 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(n, x2) = 2*n - 2*x2 + 1 Supporting invariants [-1*t2 - 1 >= 0] [2025-02-17 22:45:23,416 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 22:45:23,423 INFO L156 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2025-02-17 22:45:23,443 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:23,447 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-17 22:45:23,449 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-17 22:45:23,449 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:23,449 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:45:23,449 INFO L256 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-17 22:45:23,450 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:45:23,459 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:45:23,460 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:45:23,460 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:23,460 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:45:23,460 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-17 22:45:23,460 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:45:23,483 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 22:45:23,483 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 22:45:23,483 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 232 states and 579 transitions. cyclomatic complexity: 389 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 22:45:23,534 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 232 states and 579 transitions. cyclomatic complexity: 389. 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 559 states and 1437 transitions. Complement of second has 7 states. [2025-02-17 22:45:23,534 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 22:45:23,534 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 22:45:23,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 66 transitions. [2025-02-17 22:45:23,535 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 66 transitions. Stem has 4 letters. Loop has 3 letters. [2025-02-17 22:45:23,535 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:45:23,535 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 66 transitions. Stem has 7 letters. Loop has 3 letters. [2025-02-17 22:45:23,535 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:45:23,535 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 66 transitions. Stem has 4 letters. Loop has 6 letters. [2025-02-17 22:45:23,535 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:45:23,535 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 559 states and 1437 transitions. [2025-02-17 22:45:23,539 INFO L131 ngComponentsAnalysis]: Automaton has 28 accepting balls. 90 [2025-02-17 22:45:23,542 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 559 states to 445 states and 1106 transitions. [2025-02-17 22:45:23,542 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 221 [2025-02-17 22:45:23,542 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 273 [2025-02-17 22:45:23,542 INFO L73 IsDeterministic]: Start isDeterministic. Operand 445 states and 1106 transitions. [2025-02-17 22:45:23,542 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-17 22:45:23,542 INFO L218 hiAutomatonCegarLoop]: Abstraction has 445 states and 1106 transitions. [2025-02-17 22:45:23,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 445 states and 1106 transitions. [2025-02-17 22:45:23,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 445 to 293. [2025-02-17 22:45:23,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 293 states, 293 states have (on average 2.57679180887372) internal successors, (755), 292 states have internal predecessors, (755), 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 22:45:23,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 755 transitions. [2025-02-17 22:45:23,550 INFO L240 hiAutomatonCegarLoop]: Abstraction has 293 states and 755 transitions. [2025-02-17 22:45:23,550 INFO L432 stractBuchiCegarLoop]: Abstraction has 293 states and 755 transitions. [2025-02-17 22:45:23,550 INFO L338 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2025-02-17 22:45:23,550 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 293 states and 755 transitions. [2025-02-17 22:45:23,551 INFO L131 ngComponentsAnalysis]: Automaton has 21 accepting balls. 69 [2025-02-17 22:45:23,551 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-17 22:45:23,551 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-17 22:45:23,554 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2025-02-17 22:45:23,555 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-02-17 22:45:23,555 INFO L752 eck$LassoCheckResult]: Stem: "[100] $Ultimate##0-->$Ultimate##0: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" "[103] L14-->$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]" "[88] $Ultimate##0-->L53: Formula: (< v_b_8 1) InVars {b=v_b_8} OutVars{b=v_b_8} AuxVars[] AssignedVars[]" "[90] L53-->L57-2: Formula: (= (+ v_t2_4 1) 0) InVars {} OutVars{t2=v_t2_4} AuxVars[] AssignedVars[t2]" "[76] $Ultimate##0-->L25: Formula: (<= 1 v_b_2) InVars {b=v_b_2} OutVars{b=v_b_2} AuxVars[] AssignedVars[]" [2025-02-17 22:45:23,567 INFO L754 eck$LassoCheckResult]: Loop: "[92] L57-2-->L57: Formula: (<= v_x2_1 v_n_3) InVars {x2=v_x2_1, n=v_n_3} OutVars{x2=v_x2_1, n=v_n_3} AuxVars[] AssignedVars[]" "[94] L57-->L59: Formula: (<= 1 v_b_5) InVars {b=v_b_5} OutVars{b=v_b_5} AuxVars[] AssignedVars[]" "[96] L59-->L57-2: 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 22:45:23,568 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:23,568 INFO L85 PathProgramCache]: Analyzing trace with hash 124137158, now seen corresponding path program 1 times [2025-02-17 22:45:23,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:45:23,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501576132] [2025-02-17 22:45:23,568 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:45:23,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:45:23,570 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-17 22:45:23,571 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-17 22:45:23,571 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:23,571 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:45:23,584 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 22:45:23,587 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 22:45:23,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-17 22:45:23,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [501576132] [2025-02-17 22:45:23,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [501576132] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-17 22:45:23,587 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-17 22:45:23,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-17 22:45:23,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122083656] [2025-02-17 22:45:23,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-17 22:45:23,588 INFO L757 eck$LassoCheckResult]: stem already infeasible [2025-02-17 22:45:23,588 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:23,588 INFO L85 PathProgramCache]: Analyzing trace with hash 121213, now seen corresponding path program 2 times [2025-02-17 22:45:23,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:45:23,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588652094] [2025-02-17 22:45:23,588 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-17 22:45:23,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:45:23,589 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:45:23,590 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:45:23,590 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-17 22:45:23,590 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:23,590 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:45:23,591 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:45:23,591 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:45:23,591 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:23,591 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:23,592 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:45:23,596 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 22:45:23,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-17 22:45:23,615 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-17 22:45:23,615 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-17 22:45:23,615 INFO L87 Difference]: Start difference. First operand 293 states and 755 transitions. cyclomatic complexity: 509 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 22:45:23,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-17 22:45:23,631 INFO L93 Difference]: Finished difference Result 161 states and 405 transitions. [2025-02-17 22:45:23,631 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 161 states and 405 transitions. [2025-02-17 22:45:23,632 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-02-17 22:45:23,632 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 161 states to 0 states and 0 transitions. [2025-02-17 22:45:23,632 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2025-02-17 22:45:23,632 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2025-02-17 22:45:23,632 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2025-02-17 22:45:23,632 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-02-17 22:45:23,632 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-02-17 22:45:23,632 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-02-17 22:45:23,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-17 22:45:23,633 INFO L432 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-02-17 22:45:23,633 INFO L338 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2025-02-17 22:45:23,633 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2025-02-17 22:45:23,633 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-02-17 22:45:23,633 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2025-02-17 22:45:23,638 INFO L201 PluginConnector]: Adding new model adfg_2_x_t_indep.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 17.02 10:45:23 BoogieIcfgContainer [2025-02-17 22:45:23,638 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2025-02-17 22:45:23,639 INFO L158 Benchmark]: Toolchain (without parser) took 3425.28ms. Allocated memory was 155.2MB in the beginning and 142.6MB in the end (delta: -12.6MB). Free memory was 84.1MB in the beginning and 103.5MB in the end (delta: -19.4MB). There was no memory consumed. Max. memory is 8.0GB. [2025-02-17 22:45:23,639 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.81ms. Allocated memory is still 155.2MB. Free memory is still 84.9MB. There was no memory consumed. Max. memory is 8.0GB. [2025-02-17 22:45:23,639 INFO L158 Benchmark]: Boogie Procedure Inliner took 19.54ms. Allocated memory is still 155.2MB. Free memory was 84.0MB in the beginning and 82.8MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 8.0GB. [2025-02-17 22:45:23,639 INFO L158 Benchmark]: Boogie Preprocessor took 14.14ms. Allocated memory is still 155.2MB. Free memory was 82.8MB in the beginning and 82.1MB in the end (delta: 691.3kB). There was no memory consumed. Max. memory is 8.0GB. [2025-02-17 22:45:23,639 INFO L158 Benchmark]: RCFGBuilder took 178.67ms. Allocated memory is still 155.2MB. Free memory was 82.0MB in the beginning and 72.2MB in the end (delta: 9.7MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2025-02-17 22:45:23,640 INFO L158 Benchmark]: BuchiAutomizer took 3209.84ms. Allocated memory was 155.2MB in the beginning and 142.6MB in the end (delta: -12.6MB). Free memory was 72.1MB in the beginning and 103.5MB in the end (delta: -31.3MB). There was no memory consumed. Max. memory is 8.0GB. [2025-02-17 22:45:23,640 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 0.81ms. Allocated memory is still 155.2MB. Free memory is still 84.9MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 19.54ms. Allocated memory is still 155.2MB. Free memory was 84.0MB in the beginning and 82.8MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 8.0GB. * Boogie Preprocessor took 14.14ms. Allocated memory is still 155.2MB. Free memory was 82.8MB in the beginning and 82.1MB in the end (delta: 691.3kB). There was no memory consumed. Max. memory is 8.0GB. * RCFGBuilder took 178.67ms. Allocated memory is still 155.2MB. Free memory was 82.0MB in the beginning and 72.2MB in the end (delta: 9.7MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * BuchiAutomizer took 3209.84ms. Allocated memory was 155.2MB in the beginning and 142.6MB in the end (delta: -12.6MB). Free memory was 72.1MB in the beginning and 103.5MB in the end (delta: -31.3MB). There was no memory consumed. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 6 terminating modules (2 trivial, 4 deterministic, 0 nondeterministic). One deterministic module has affine ranking function 2 * n + -2 * x1 + 1 and consists of 4 locations. One deterministic module has affine ranking function 2 * n + -2 * x1 + 1 and consists of 4 locations. One deterministic module has affine ranking function 2 * n + -2 * x2 + 1 and consists of 4 locations. One deterministic module has affine ranking function 2 * n + -2 * x2 + 1 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 3.1s and 7 iterations. TraceHistogramMax:1. Analysis of lassos took 2.2s. Construction of modules took 0.1s. Büchi inclusion checks took 0.5s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 4. Automata minimization 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 315 StatesRemovedByMinimization, 4 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [4, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 241 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 241 mSDsluCounter, 316 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 121 mSDsCounter, 22 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 135 IncrementalHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 22 mSolverCounterUnsat, 195 mSDtfsCounter, 135 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc1 concLT0 SILN1 SILU0 SILI0 SILT0 lasso4 LassoPreprocessingBenchmarks: Lassos: inital26 mio100 ax100 hnf100 lsp50 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq184 hnf95 smp100 dnf100 smp100 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 29ms VariablesStem: 1 VariablesLoop: 1 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 5 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 4 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.6s InitialAbstractionConstructionTime: 0.0s InitialAbstraction: - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2025-02-17 22:45:23,653 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...