/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/seq_loops_part_indep_2.c.bpl -------------------------------------------------------------------------------- This is Ultimate 0.3.0-wip.dk.ample-buchi-601be74-m [2025-02-17 22:45:35,863 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-17 22:45:35,907 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/settings/buchiAutomizer/concurrent-automaton-noLbe.epf [2025-02-17 22:45:35,914 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-17 22:45:35,914 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-17 22:45:35,932 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-17 22:45:35,933 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-17 22:45:35,933 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-17 22:45:35,933 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-17 22:45:35,933 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-17 22:45:35,933 INFO L153 SettingsManager]: * Use SBE=true [2025-02-17 22:45:35,934 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2025-02-17 22:45:35,934 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2025-02-17 22:45:35,934 INFO L153 SettingsManager]: * Use old map elimination=false [2025-02-17 22:45:35,934 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2025-02-17 22:45:35,934 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2025-02-17 22:45:35,934 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2025-02-17 22:45:35,934 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-17 22:45:35,934 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2025-02-17 22:45:35,934 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-17 22:45:35,934 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-17 22:45:35,934 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-17 22:45:35,934 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-17 22:45:35,934 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2025-02-17 22:45:35,934 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2025-02-17 22:45:35,934 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2025-02-17 22:45:35,934 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-17 22:45:35,934 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-17 22:45:35,934 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-17 22:45:35,935 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2025-02-17 22:45:35,935 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-17 22:45:35,935 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-02-17 22:45:35,935 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-17 22:45:35,935 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-17 22:45:35,935 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-17 22:45:35,935 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2025-02-17 22:45:35,935 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR [2025-02-17 22:45:36,219 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-17 22:45:36,227 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-17 22:45:36,229 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-17 22:45:36,230 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2025-02-17 22:45:36,231 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2025-02-17 22:45:36,232 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/cav23-termute-examples/2_thr/seq_loops_part_indep_2.c.bpl [2025-02-17 22:45:36,232 INFO L110 BoogieParser]: Parsing: '/storage/cav23-termute-examples/2_thr/seq_loops_part_indep_2.c.bpl' [2025-02-17 22:45:36,247 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-17 22:45:36,249 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2025-02-17 22:45:36,249 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-17 22:45:36,249 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-17 22:45:36,249 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-17 22:45:36,256 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "seq_loops_part_indep_2.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:36" (1/1) ... [2025-02-17 22:45:36,259 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "seq_loops_part_indep_2.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:36" (1/1) ... [2025-02-17 22:45:36,267 INFO L138 Inliner]: procedures = 3, calls = 2, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2025-02-17 22:45:36,268 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-17 22:45:36,269 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-17 22:45:36,269 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-17 22:45:36,269 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-17 22:45:36,274 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "seq_loops_part_indep_2.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:36" (1/1) ... [2025-02-17 22:45:36,274 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "seq_loops_part_indep_2.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:36" (1/1) ... [2025-02-17 22:45:36,274 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "seq_loops_part_indep_2.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:36" (1/1) ... [2025-02-17 22:45:36,274 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "seq_loops_part_indep_2.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:36" (1/1) ... [2025-02-17 22:45:36,275 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "seq_loops_part_indep_2.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:36" (1/1) ... [2025-02-17 22:45:36,276 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "seq_loops_part_indep_2.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:36" (1/1) ... [2025-02-17 22:45:36,279 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "seq_loops_part_indep_2.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:36" (1/1) ... [2025-02-17 22:45:36,280 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "seq_loops_part_indep_2.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:36" (1/1) ... [2025-02-17 22:45:36,280 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "seq_loops_part_indep_2.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:36" (1/1) ... [2025-02-17 22:45:36,281 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-17 22:45:36,282 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-02-17 22:45:36,282 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-02-17 22:45:36,282 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-02-17 22:45:36,283 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "seq_loops_part_indep_2.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:36" (1/1) ... [2025-02-17 22:45:36,288 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:36,297 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:36,305 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 22:45:36,308 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 22:45:36,324 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2025-02-17 22:45:36,324 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-02-17 22:45:36,324 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-02-17 22:45:36,324 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2025-02-17 22:45:36,324 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-02-17 22:45:36,324 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-02-17 22:45:36,324 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2025-02-17 22:45:36,324 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-17 22:45:36,324 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-17 22:45:36,325 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 22:45:36,357 INFO L234 CfgBuilder]: Building ICFG [2025-02-17 22:45:36,358 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-17 22:45:36,409 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-17 22:45:36,409 INFO L283 CfgBuilder]: Performing block encoding [2025-02-17 22:45:36,415 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-17 22:45:36,416 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-17 22:45:36,416 INFO L201 PluginConnector]: Adding new model seq_loops_part_indep_2.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.02 10:45:36 BoogieIcfgContainer [2025-02-17 22:45:36,416 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-02-17 22:45:36,417 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2025-02-17 22:45:36,417 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2025-02-17 22:45:36,420 INFO L274 PluginConnector]: BuchiAutomizer initialized [2025-02-17 22:45:36,421 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-02-17 22:45:36,421 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "seq_loops_part_indep_2.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:45:36" (1/2) ... [2025-02-17 22:45:36,422 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@45b87f27 and model type seq_loops_part_indep_2.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.02 10:45:36, skipping insertion in model container [2025-02-17 22:45:36,422 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-02-17 22:45:36,422 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "seq_loops_part_indep_2.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.02 10:45:36" (2/2) ... [2025-02-17 22:45:36,423 INFO L363 chiAutomizerObserver]: Analyzing ICFG seq_loops_part_indep_2.c.bpl [2025-02-17 22:45:36,465 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-02-17 22:45:36,493 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 26 places, 25 transitions, 64 flow [2025-02-17 22:45:36,507 INFO L124 PetriNetUnfolderBase]: 4/21 cut-off events. [2025-02-17 22:45:36,508 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-02-17 22:45:36,511 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30 conditions, 21 events. 4/21 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 45 event pairs, 0 based on Foata normal form. 0/17 useless extension candidates. Maximal degree in co-relation 19. Up to 2 conditions per place. [2025-02-17 22:45:36,511 INFO L82 GeneralOperation]: Start removeDead. Operand has 26 places, 25 transitions, 64 flow [2025-02-17 22:45:36,514 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 24 places, 21 transitions, 54 flow [2025-02-17 22:45:36,523 INFO L306 stractBuchiCegarLoop]: Interprodecural is true [2025-02-17 22:45:36,523 INFO L307 stractBuchiCegarLoop]: Hoare is None [2025-02-17 22:45:36,523 INFO L308 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2025-02-17 22:45:36,523 INFO L309 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2025-02-17 22:45:36,523 INFO L310 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2025-02-17 22:45:36,523 INFO L311 stractBuchiCegarLoop]: Difference is false [2025-02-17 22:45:36,523 INFO L312 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2025-02-17 22:45:36,523 INFO L316 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2025-02-17 22:45:36,524 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 0 states, but on-demand construction may add more states [2025-02-17 22:45:36,552 INFO L131 ngComponentsAnalysis]: Automaton has 16 accepting balls. 55 [2025-02-17 22:45:36,553 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-17 22:45:36,553 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-17 22:45:36,555 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1] [2025-02-17 22:45:36,555 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-02-17 22:45:36,555 INFO L338 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2025-02-17 22:45:36,555 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 65 states, but on-demand construction may add more states [2025-02-17 22:45:36,557 INFO L131 ngComponentsAnalysis]: Automaton has 16 accepting balls. 55 [2025-02-17 22:45:36,557 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-17 22:45:36,557 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-17 22:45:36,558 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1] [2025-02-17 22:45:36,558 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-02-17 22:45:36,560 INFO L752 eck$LassoCheckResult]: Stem: "[74] $Ultimate##0-->L21: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" [2025-02-17 22:45:36,561 INFO L754 eck$LassoCheckResult]: Loop: "[57] L21-->L23: Formula: (< v_x1_1 v_z_1) InVars {x1=v_x1_1, z=v_z_1} OutVars{x1=v_x1_1, z=v_z_1} AuxVars[] AssignedVars[]" "[60] L23-->L24: Formula: (= v_x1_2 (+ v_x1_3 1)) InVars {x1=v_x1_3} OutVars{x1=v_x1_2} AuxVars[] AssignedVars[x1]" "[63] L24-->L21: Formula: (= v_x2_1 (+ v_x2_2 1)) InVars {x2=v_x2_2} OutVars{x2=v_x2_1} AuxVars[] AssignedVars[x2]" [2025-02-17 22:45:36,564 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:36,564 INFO L85 PathProgramCache]: Analyzing trace with hash 105, now seen corresponding path program 1 times [2025-02-17 22:45:36,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:45:36,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453479683] [2025-02-17 22:45:36,569 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:45:36,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:45:36,617 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-02-17 22:45:36,624 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-02-17 22:45:36,624 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:36,624 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:36,625 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:45:36,626 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-02-17 22:45:36,627 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-02-17 22:45:36,627 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:36,627 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:36,637 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:45:36,639 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:36,639 INFO L85 PathProgramCache]: Analyzing trace with hash 86491, now seen corresponding path program 1 times [2025-02-17 22:45:36,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:45:36,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839949726] [2025-02-17 22:45:36,639 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:45:36,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:45:36,643 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:45:36,646 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:45:36,647 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:36,647 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:36,647 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:45:36,648 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:45:36,649 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:45:36,649 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:36,649 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:36,650 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:45:36,651 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:36,651 INFO L85 PathProgramCache]: Analyzing trace with hash 3184755, now seen corresponding path program 1 times [2025-02-17 22:45:36,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:45:36,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722461260] [2025-02-17 22:45:36,651 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:45:36,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:45:36,653 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-17 22:45:36,655 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-17 22:45:36,655 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:36,655 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:36,655 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:45:36,656 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-17 22:45:36,657 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-17 22:45:36,657 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:36,657 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:36,658 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:45:36,718 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:45:36,718 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:45:36,719 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:45:36,719 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:45:36,719 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-17 22:45:36,719 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:36,719 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:45:36,719 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:45:36,719 INFO L132 ssoRankerPreferences]: Filename of dumped script: seq_loops_part_indep_2.c.bpl_petrified1_Iteration1_Loop [2025-02-17 22:45:36,719 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:45:36,719 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:45:36,730 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:36,743 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:36,800 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:45:36,800 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-17 22:45:36,803 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:36,803 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:36,805 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 22:45:36,807 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 22:45:36,809 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:45:36,809 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:45:36,829 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 22:45:36,829 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:36,829 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:36,832 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 22:45:36,834 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 22:45:36,835 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-17 22:45:36,835 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:45:36,865 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-02-17 22:45:36,866 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {x2=0} Honda state: {x2=0} Generalized eigenvectors: [{x2=1}, {x2=-6}, {x2=6}] Lambdas: [1, 2, 1] Nus: [0, 1] [2025-02-17 22:45:36,871 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2025-02-17 22:45:36,872 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:36,872 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:36,874 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 22:45:36,875 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 22:45:36,877 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:45:36,877 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:45:36,895 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 22:45:36,895 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:36,895 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:36,897 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 22:45:36,899 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 22:45:36,901 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-17 22:45:36,901 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:45:36,975 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-17 22:45:36,978 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 22:45:36,979 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:45:36,979 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:45:36,979 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:45:36,979 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:45:36,979 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-17 22:45:36,979 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:36,979 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:45:36,979 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:45:36,979 INFO L132 ssoRankerPreferences]: Filename of dumped script: seq_loops_part_indep_2.c.bpl_petrified1_Iteration1_Loop [2025-02-17 22:45:36,979 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:45:36,979 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:45:36,980 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:36,985 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:37,024 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:45:37,027 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-17 22:45:37,032 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:37,032 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:37,039 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 22:45:37,043 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 22:45:37,045 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 22:45:37,058 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:45:37,058 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-17 22:45:37,058 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:45:37,058 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:45:37,058 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:45:37,064 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-17 22:45:37,064 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-17 22:45:37,070 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-17 22:45:37,075 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 22:45:37,076 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:37,076 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:37,079 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 22:45:37,082 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 22:45:37,083 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 22:45:37,093 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:45:37,093 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-17 22:45:37,093 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:45:37,093 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:45:37,093 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:45:37,094 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-17 22:45:37,094 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-17 22:45:37,096 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-17 22:45:37,099 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2025-02-17 22:45:37,099 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-02-17 22:45:37,100 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:37,100 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:37,102 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 22:45:37,103 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 22:45:37,110 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-17 22:45:37,111 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-02-17 22:45:37,111 INFO L474 LassoAnalysis]: Proved termination. [2025-02-17 22:45:37,111 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(x1, z) = -1*x1 + 1*z Supporting invariants [] [2025-02-17 22:45:37,117 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2025-02-17 22:45:37,120 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-02-17 22:45:37,150 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:37,158 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-02-17 22:45:37,159 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-02-17 22:45:37,159 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:37,159 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:45:37,160 WARN L254 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-17 22:45:37,160 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:45:37,167 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:45:37,169 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:45:37,169 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:37,169 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:45:37,169 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-17 22:45:37,170 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:45:37,242 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2025-02-17 22:45:37,261 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 22:45:37,319 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2025-02-17 22:45:37,321 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand currently 65 states, but on-demand construction may add more states Second operand has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:45:37,485 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand currently 65 states, but on-demand construction may add more states. Second operand has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 171 states and 398 transitions. Complement of second has 6 states. [2025-02-17 22:45:37,489 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 22:45:37,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:45:37,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 44 transitions. [2025-02-17 22:45:37,503 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 44 transitions. Stem has 1 letters. Loop has 3 letters. [2025-02-17 22:45:37,504 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:45:37,504 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 44 transitions. Stem has 4 letters. Loop has 3 letters. [2025-02-17 22:45:37,507 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:45:37,507 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 44 transitions. Stem has 1 letters. Loop has 6 letters. [2025-02-17 22:45:37,507 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:45:37,508 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 171 states and 398 transitions. [2025-02-17 22:45:37,516 INFO L131 ngComponentsAnalysis]: Automaton has 18 accepting balls. 48 [2025-02-17 22:45:37,525 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 171 states to 118 states and 278 transitions. [2025-02-17 22:45:37,526 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 60 [2025-02-17 22:45:37,527 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 79 [2025-02-17 22:45:37,527 INFO L73 IsDeterministic]: Start isDeterministic. Operand 118 states and 278 transitions. [2025-02-17 22:45:37,528 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-17 22:45:37,528 INFO L218 hiAutomatonCegarLoop]: Abstraction has 118 states and 278 transitions. [2025-02-17 22:45:37,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states and 278 transitions. [2025-02-17 22:45:37,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 100. [2025-02-17 22:45:37,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 100 states have (on average 2.36) internal successors, (236), 99 states have internal predecessors, (236), 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 22:45:37,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 236 transitions. [2025-02-17 22:45:37,546 INFO L240 hiAutomatonCegarLoop]: Abstraction has 100 states and 236 transitions. [2025-02-17 22:45:37,546 INFO L432 stractBuchiCegarLoop]: Abstraction has 100 states and 236 transitions. [2025-02-17 22:45:37,547 INFO L338 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2025-02-17 22:45:37,547 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 100 states and 236 transitions. [2025-02-17 22:45:37,548 INFO L131 ngComponentsAnalysis]: Automaton has 18 accepting balls. 48 [2025-02-17 22:45:37,548 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-17 22:45:37,548 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-17 22:45:37,548 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2025-02-17 22:45:37,548 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-02-17 22:45:37,548 INFO L752 eck$LassoCheckResult]: Stem: "[74] $Ultimate##0-->L21: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" "[56] L21-->L26-1: Formula: (<= v_z_2 v_x1_4) InVars {x1=v_x1_4, z=v_z_2} OutVars{x1=v_x1_4, z=v_z_2} AuxVars[] AssignedVars[]" [2025-02-17 22:45:37,549 INFO L754 eck$LassoCheckResult]: Loop: "[59] L26-1-->L28: Formula: (< v_x3_1 v_z_3) InVars {x3=v_x3_1, z=v_z_3} OutVars{x3=v_x3_1, z=v_z_3} AuxVars[] AssignedVars[]" "[62] L28-->L26-1: Formula: (= v_x3_2 (+ v_x3_3 1)) InVars {x3=v_x3_3} OutVars{x3=v_x3_2} AuxVars[] AssignedVars[x3]" [2025-02-17 22:45:37,549 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:37,549 INFO L85 PathProgramCache]: Analyzing trace with hash 3311, now seen corresponding path program 1 times [2025-02-17 22:45:37,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:45:37,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782611790] [2025-02-17 22:45:37,549 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:45:37,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:45:37,551 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:45:37,552 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:45:37,552 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:37,552 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:37,552 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:45:37,553 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:45:37,553 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:45:37,553 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:37,553 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:37,554 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:45:37,554 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:37,554 INFO L85 PathProgramCache]: Analyzing trace with hash 2852, now seen corresponding path program 1 times [2025-02-17 22:45:37,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:45:37,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421564366] [2025-02-17 22:45:37,554 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:45:37,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:45:37,556 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:45:37,557 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:45:37,557 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:37,557 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:37,557 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:45:37,557 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:45:37,558 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:45:37,558 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:37,558 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:37,559 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:45:37,559 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:37,559 INFO L85 PathProgramCache]: Analyzing trace with hash 3183762, now seen corresponding path program 1 times [2025-02-17 22:45:37,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:45:37,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437252701] [2025-02-17 22:45:37,559 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:45:37,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:45:37,561 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-17 22:45:37,562 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-17 22:45:37,562 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:37,562 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:37,562 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:45:37,562 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-17 22:45:37,563 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-17 22:45:37,563 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:37,564 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:37,564 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:45:37,576 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:45:37,576 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:45:37,576 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:45:37,576 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:45:37,576 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-17 22:45:37,576 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:37,576 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:45:37,576 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:45:37,576 INFO L132 ssoRankerPreferences]: Filename of dumped script: seq_loops_part_indep_2.c.bpl_petrified1_Iteration2_Loop [2025-02-17 22:45:37,576 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:45:37,576 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:45:37,577 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:37,590 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:45:37,590 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-17 22:45:37,590 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:37,590 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:37,592 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 22:45:37,592 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 22:45:37,593 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:45:37,593 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:45:37,611 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2025-02-17 22:45:37,611 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:37,612 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:37,614 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 22:45:37,616 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 22:45:37,617 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-17 22:45:37,617 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:45:37,682 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-17 22:45:37,686 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2025-02-17 22:45:37,686 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:45:37,686 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:45:37,687 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:45:37,687 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:45:37,687 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-17 22:45:37,687 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:37,687 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:45:37,687 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:45:37,687 INFO L132 ssoRankerPreferences]: Filename of dumped script: seq_loops_part_indep_2.c.bpl_petrified1_Iteration2_Loop [2025-02-17 22:45:37,687 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:45:37,687 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:45:37,688 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:37,703 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:45:37,704 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-17 22:45:37,704 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:37,704 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:37,708 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 22:45:37,710 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 22:45:37,711 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 22:45:37,720 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:45:37,720 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-17 22:45:37,721 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:45:37,721 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:45:37,721 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:45:37,721 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-17 22:45:37,721 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-17 22:45:37,723 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-17 22:45:37,726 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2025-02-17 22:45:37,727 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-02-17 22:45:37,727 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:37,727 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:37,728 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 22:45:37,730 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 22:45:37,731 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-17 22:45:37,731 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-02-17 22:45:37,731 INFO L474 LassoAnalysis]: Proved termination. [2025-02-17 22:45:37,731 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(x3, z) = -1*x3 + 1*z Supporting invariants [] [2025-02-17 22:45:37,737 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 22:45:37,738 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-02-17 22:45:37,753 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:37,759 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:45:37,760 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:45:37,760 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:37,760 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:45:37,762 INFO L256 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-17 22:45:37,762 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:45:37,772 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:45:37,773 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:45:37,773 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:37,773 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:45:37,774 WARN L254 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-17 22:45:37,774 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:45:37,791 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 22:45:37,792 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 22:45:37,792 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 100 states and 236 transitions. cyclomatic complexity: 160 Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:45:37,845 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 100 states and 236 transitions. cyclomatic complexity: 160. Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 166 states and 424 transitions. Complement of second has 6 states. [2025-02-17 22:45:37,845 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 22:45:37,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:45:37,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 48 transitions. [2025-02-17 22:45:37,846 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 48 transitions. Stem has 2 letters. Loop has 2 letters. [2025-02-17 22:45:37,846 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:45:37,846 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 48 transitions. Stem has 4 letters. Loop has 2 letters. [2025-02-17 22:45:37,846 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:45:37,846 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 48 transitions. Stem has 2 letters. Loop has 4 letters. [2025-02-17 22:45:37,846 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:45:37,846 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 166 states and 424 transitions. [2025-02-17 22:45:37,849 INFO L131 ngComponentsAnalysis]: Automaton has 17 accepting balls. 42 [2025-02-17 22:45:37,851 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 166 states to 117 states and 304 transitions. [2025-02-17 22:45:37,851 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 54 [2025-02-17 22:45:37,851 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 71 [2025-02-17 22:45:37,851 INFO L73 IsDeterministic]: Start isDeterministic. Operand 117 states and 304 transitions. [2025-02-17 22:45:37,851 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-17 22:45:37,851 INFO L218 hiAutomatonCegarLoop]: Abstraction has 117 states and 304 transitions. [2025-02-17 22:45:37,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states and 304 transitions. [2025-02-17 22:45:37,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 102. [2025-02-17 22:45:37,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 102 states have (on average 2.656862745098039) internal successors, (271), 101 states have internal predecessors, (271), 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 22:45:37,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 271 transitions. [2025-02-17 22:45:37,862 INFO L240 hiAutomatonCegarLoop]: Abstraction has 102 states and 271 transitions. [2025-02-17 22:45:37,862 INFO L432 stractBuchiCegarLoop]: Abstraction has 102 states and 271 transitions. [2025-02-17 22:45:37,862 INFO L338 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2025-02-17 22:45:37,862 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 102 states and 271 transitions. [2025-02-17 22:45:37,863 INFO L131 ngComponentsAnalysis]: Automaton has 17 accepting balls. 42 [2025-02-17 22:45:37,863 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-17 22:45:37,863 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-17 22:45:37,863 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2025-02-17 22:45:37,863 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-02-17 22:45:37,864 INFO L752 eck$LassoCheckResult]: Stem: "[74] $Ultimate##0-->L21: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" "[77] L12-->L35: Formula: (and (= 2 v_thread2Thread1of1ForFork1_thidvar1_2) (= 2 v_thread2Thread1of1ForFork1_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_2, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_thidvar0, thread2Thread1of1ForFork1_thidvar1]" [2025-02-17 22:45:37,864 INFO L754 eck$LassoCheckResult]: Loop: "[65] L35-->L37: Formula: (< v_x2_3 v_z_5) InVars {x2=v_x2_3, z=v_z_5} OutVars{x2=v_x2_3, z=v_z_5} AuxVars[] AssignedVars[]" "[68] L37-->L38: Formula: (= (+ v_x2_5 1) v_x2_4) InVars {x2=v_x2_5} OutVars{x2=v_x2_4} AuxVars[] AssignedVars[x2]" "[71] L38-->L35: Formula: (= v_x1_5 (+ v_x1_6 1)) InVars {x1=v_x1_6} OutVars{x1=v_x1_5} AuxVars[] AssignedVars[x1]" [2025-02-17 22:45:37,864 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:37,864 INFO L85 PathProgramCache]: Analyzing trace with hash 3332, now seen corresponding path program 1 times [2025-02-17 22:45:37,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:45:37,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1645532700] [2025-02-17 22:45:37,864 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:45:37,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:45:37,868 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:45:37,869 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:45:37,869 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:37,869 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:37,869 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:45:37,870 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:45:37,870 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:45:37,870 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:37,870 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:37,871 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:45:37,872 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:37,872 INFO L85 PathProgramCache]: Analyzing trace with hash 94435, now seen corresponding path program 1 times [2025-02-17 22:45:37,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:45:37,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254452835] [2025-02-17 22:45:37,872 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:45:37,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:45:37,874 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:45:37,875 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:45:37,875 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:37,875 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:37,875 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:45:37,876 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:45:37,876 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:45:37,877 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:37,877 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:37,877 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:45:37,878 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:37,878 INFO L85 PathProgramCache]: Analyzing trace with hash 99328256, now seen corresponding path program 1 times [2025-02-17 22:45:37,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:45:37,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518279860] [2025-02-17 22:45:37,878 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:45:37,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:45:37,880 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-17 22:45:37,882 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-17 22:45:37,882 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:37,882 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:37,882 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:45:37,882 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-17 22:45:37,884 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-17 22:45:37,884 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:37,884 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:37,885 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:45:37,914 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:45:37,914 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:45:37,914 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:45:37,914 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:45:37,914 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-17 22:45:37,914 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:37,914 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:45:37,914 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:45:37,914 INFO L132 ssoRankerPreferences]: Filename of dumped script: seq_loops_part_indep_2.c.bpl_petrified1_Iteration3_Loop [2025-02-17 22:45:37,914 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:45:37,914 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:45:37,915 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:37,921 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:37,955 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:45:37,955 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-17 22:45:37,955 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:37,955 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:37,958 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 22:45:37,960 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 22:45:37,961 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:45:37,961 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:45:37,977 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 22:45:37,977 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:37,978 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:37,979 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 22:45:37,981 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 22:45:37,982 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-17 22:45:37,982 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:45:38,007 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-02-17 22:45:38,008 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {x1=0} Honda state: {x1=0} Generalized eigenvectors: [{x1=7}, {x1=2}, {x1=-8}] Lambdas: [1, 5, 1] Nus: [0, 1] [2025-02-17 22:45:38,013 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2025-02-17 22:45:38,014 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:38,014 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:38,015 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 22:45:38,017 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 22:45:38,018 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:45:38,018 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:45:38,034 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 22:45:38,035 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:38,035 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:38,036 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 22:45:38,037 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 22:45:38,038 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-17 22:45:38,038 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:45:38,102 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-17 22:45:38,106 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 22:45:38,107 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:45:38,107 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:45:38,107 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:45:38,107 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:45:38,107 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-17 22:45:38,107 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:38,107 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:45:38,107 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:45:38,107 INFO L132 ssoRankerPreferences]: Filename of dumped script: seq_loops_part_indep_2.c.bpl_petrified1_Iteration3_Loop [2025-02-17 22:45:38,107 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:45:38,107 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:45:38,108 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:38,111 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:38,136 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:45:38,136 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-17 22:45:38,136 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:38,137 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:38,139 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 22:45:38,139 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 22:45:38,141 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 22:45:38,150 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:45:38,150 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-17 22:45:38,150 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:45:38,150 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:45:38,150 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:45:38,151 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-17 22:45:38,151 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-17 22:45:38,153 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-17 22:45:38,158 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 22:45:38,158 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:38,158 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:38,161 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 22:45:38,162 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 22:45:38,162 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 22:45:38,172 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:45:38,172 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-17 22:45:38,172 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:45:38,172 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:45:38,172 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:45:38,173 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-17 22:45:38,174 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-17 22:45:38,176 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-17 22:45:38,179 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-02-17 22:45:38,179 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2025-02-17 22:45:38,179 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:38,179 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:38,181 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 22:45:38,183 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 22:45:38,184 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-17 22:45:38,184 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-02-17 22:45:38,184 INFO L474 LassoAnalysis]: Proved termination. [2025-02-17 22:45:38,184 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(x2, z) = -1*x2 + 1*z Supporting invariants [] [2025-02-17 22:45:38,194 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 22:45:38,198 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-02-17 22:45:38,212 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:38,217 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:45:38,219 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:45:38,219 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:38,219 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:45:38,219 INFO L256 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-17 22:45:38,219 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:45:38,229 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:45:38,230 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:45:38,230 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:38,230 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:45:38,230 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-17 22:45:38,231 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:45:38,260 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 22:45:38,261 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2025-02-17 22:45:38,261 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 102 states and 271 transitions. cyclomatic complexity: 193 Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:45:38,305 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 102 states and 271 transitions. cyclomatic complexity: 193. Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 315 states and 871 transitions. Complement of second has 6 states. [2025-02-17 22:45:38,306 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 22:45:38,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:45:38,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 48 transitions. [2025-02-17 22:45:38,307 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 48 transitions. Stem has 2 letters. Loop has 3 letters. [2025-02-17 22:45:38,307 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:45:38,307 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 48 transitions. Stem has 5 letters. Loop has 3 letters. [2025-02-17 22:45:38,307 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:45:38,307 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 48 transitions. Stem has 2 letters. Loop has 6 letters. [2025-02-17 22:45:38,307 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:45:38,307 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 315 states and 871 transitions. [2025-02-17 22:45:38,311 INFO L131 ngComponentsAnalysis]: Automaton has 9 accepting balls. 18 [2025-02-17 22:45:38,313 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 315 states to 238 states and 630 transitions. [2025-02-17 22:45:38,313 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 76 [2025-02-17 22:45:38,313 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 98 [2025-02-17 22:45:38,313 INFO L73 IsDeterministic]: Start isDeterministic. Operand 238 states and 630 transitions. [2025-02-17 22:45:38,314 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-17 22:45:38,314 INFO L218 hiAutomatonCegarLoop]: Abstraction has 238 states and 630 transitions. [2025-02-17 22:45:38,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states and 630 transitions. [2025-02-17 22:45:38,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 205. [2025-02-17 22:45:38,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 205 states have (on average 2.653658536585366) internal successors, (544), 204 states have internal predecessors, (544), 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 22:45:38,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 544 transitions. [2025-02-17 22:45:38,326 INFO L240 hiAutomatonCegarLoop]: Abstraction has 205 states and 544 transitions. [2025-02-17 22:45:38,326 INFO L432 stractBuchiCegarLoop]: Abstraction has 205 states and 544 transitions. [2025-02-17 22:45:38,326 INFO L338 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2025-02-17 22:45:38,326 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 205 states and 544 transitions. [2025-02-17 22:45:38,328 INFO L131 ngComponentsAnalysis]: Automaton has 9 accepting balls. 18 [2025-02-17 22:45:38,328 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-17 22:45:38,328 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-17 22:45:38,328 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2025-02-17 22:45:38,328 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-02-17 22:45:38,328 INFO L752 eck$LassoCheckResult]: Stem: "[74] $Ultimate##0-->L21: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" "[77] L12-->L35: Formula: (and (= 2 v_thread2Thread1of1ForFork1_thidvar1_2) (= 2 v_thread2Thread1of1ForFork1_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_2, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_thidvar0, thread2Thread1of1ForFork1_thidvar1]" "[64] L35-->L40-1: Formula: (<= v_z_6 v_x2_6) InVars {x2=v_x2_6, z=v_z_6} OutVars{x2=v_x2_6, z=v_z_6} AuxVars[] AssignedVars[]" [2025-02-17 22:45:38,328 INFO L754 eck$LassoCheckResult]: Loop: "[67] L40-1-->L42: Formula: (< v_x4_1 v_z_7) InVars {x4=v_x4_1, z=v_z_7} OutVars{x4=v_x4_1, z=v_z_7} AuxVars[] AssignedVars[]" "[70] L42-->L40-1: Formula: (= (+ v_x4_3 1) v_x4_2) InVars {x4=v_x4_3} OutVars{x4=v_x4_2} AuxVars[] AssignedVars[x4]" [2025-02-17 22:45:38,330 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:38,330 INFO L85 PathProgramCache]: Analyzing trace with hash 103356, now seen corresponding path program 1 times [2025-02-17 22:45:38,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:45:38,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794927593] [2025-02-17 22:45:38,331 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:45:38,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:45:38,332 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:45:38,333 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:45:38,333 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:38,333 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:38,333 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:45:38,334 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:45:38,334 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:45:38,334 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:38,334 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:38,335 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:45:38,335 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:38,335 INFO L85 PathProgramCache]: Analyzing trace with hash 3108, now seen corresponding path program 1 times [2025-02-17 22:45:38,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:45:38,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385365694] [2025-02-17 22:45:38,335 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:45:38,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:45:38,337 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:45:38,337 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:45:38,337 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:38,337 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:38,337 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:45:38,338 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:45:38,338 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:45:38,338 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:38,338 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:38,339 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:45:38,339 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:38,339 INFO L85 PathProgramCache]: Analyzing trace with hash 99327263, now seen corresponding path program 1 times [2025-02-17 22:45:38,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:45:38,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867855767] [2025-02-17 22:45:38,340 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:45:38,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:45:38,341 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-17 22:45:38,344 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-17 22:45:38,344 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:38,344 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:38,344 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:45:38,344 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-17 22:45:38,345 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-17 22:45:38,346 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:38,346 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:45:38,346 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:45:38,364 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:45:38,364 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:45:38,364 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:45:38,364 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:45:38,364 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-17 22:45:38,364 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:38,364 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:45:38,364 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:45:38,364 INFO L132 ssoRankerPreferences]: Filename of dumped script: seq_loops_part_indep_2.c.bpl_petrified1_Iteration4_Loop [2025-02-17 22:45:38,364 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:45:38,365 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:45:38,365 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:38,384 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:45:38,384 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-17 22:45:38,384 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:38,385 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:38,386 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 22:45:38,388 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 22:45:38,389 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:45:38,389 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:45:38,408 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2025-02-17 22:45:38,408 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:38,408 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:38,410 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 22:45:38,411 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 22:45:38,411 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-17 22:45:38,412 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:45:38,476 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-17 22:45:38,480 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 22:45:38,480 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:45:38,480 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:45:38,480 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:45:38,480 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:45:38,480 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-17 22:45:38,480 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:38,480 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:45:38,480 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:45:38,480 INFO L132 ssoRankerPreferences]: Filename of dumped script: seq_loops_part_indep_2.c.bpl_petrified1_Iteration4_Loop [2025-02-17 22:45:38,480 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:45:38,481 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:45:38,481 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:45:38,498 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:45:38,498 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-17 22:45:38,498 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:38,498 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:38,500 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 22:45:38,501 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 22:45:38,502 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 22:45:38,512 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:45:38,512 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-17 22:45:38,512 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:45:38,512 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:45:38,512 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:45:38,513 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-17 22:45:38,513 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-17 22:45:38,514 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-17 22:45:38,516 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-02-17 22:45:38,516 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2025-02-17 22:45:38,517 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:45:38,517 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:45:38,518 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 22:45:38,520 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 22:45:38,522 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-17 22:45:38,522 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-02-17 22:45:38,522 INFO L474 LassoAnalysis]: Proved termination. [2025-02-17 22:45:38,522 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(z, x4) = 1*z - 1*x4 Supporting invariants [] [2025-02-17 22:45:38,527 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 22:45:38,528 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-02-17 22:45:38,539 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:45:38,544 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:45:38,545 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:45:38,545 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:38,545 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:45:38,545 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-17 22:45:38,545 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:45:38,551 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:45:38,551 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:45:38,551 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:45:38,551 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:45:38,554 WARN L254 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-17 22:45:38,555 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:45:38,571 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 22:45:38,571 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 22:45:38,571 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 205 states and 544 transitions. cyclomatic complexity: 371 Second operand has 3 states, 3 states have (on average 1.6666666666666667) 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 22:45:38,617 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 205 states and 544 transitions. cyclomatic complexity: 371. Second operand has 3 states, 3 states have (on average 1.6666666666666667) 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) Result 291 states and 755 transitions. Complement of second has 6 states. [2025-02-17 22:45:38,620 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 22:45:38,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.6666666666666667) 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 22:45:38,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 45 transitions. [2025-02-17 22:45:38,621 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 45 transitions. Stem has 3 letters. Loop has 2 letters. [2025-02-17 22:45:38,621 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:45:38,621 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 45 transitions. Stem has 5 letters. Loop has 2 letters. [2025-02-17 22:45:38,621 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:45:38,621 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 45 transitions. Stem has 3 letters. Loop has 4 letters. [2025-02-17 22:45:38,621 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:45:38,621 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 291 states and 755 transitions. [2025-02-17 22:45:38,627 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-02-17 22:45:38,627 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 291 states to 0 states and 0 transitions. [2025-02-17 22:45:38,627 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2025-02-17 22:45:38,627 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2025-02-17 22:45:38,627 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2025-02-17 22:45:38,627 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-02-17 22:45:38,627 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-02-17 22:45:38,627 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-02-17 22:45:38,627 INFO L432 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-02-17 22:45:38,627 INFO L338 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2025-02-17 22:45:38,627 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2025-02-17 22:45:38,627 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-02-17 22:45:38,627 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2025-02-17 22:45:38,632 INFO L201 PluginConnector]: Adding new model seq_loops_part_indep_2.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 17.02 10:45:38 BoogieIcfgContainer [2025-02-17 22:45:38,632 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2025-02-17 22:45:38,633 INFO L158 Benchmark]: Toolchain (without parser) took 2384.47ms. Allocated memory was 167.8MB in the beginning and 155.2MB in the end (delta: -12.6MB). Free memory was 95.4MB in the beginning and 38.1MB in the end (delta: 57.3MB). Peak memory consumption was 45.4MB. Max. memory is 8.0GB. [2025-02-17 22:45:38,633 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.16ms. Allocated memory is still 167.8MB. Free memory is still 96.2MB. There was no memory consumed. Max. memory is 8.0GB. [2025-02-17 22:45:38,633 INFO L158 Benchmark]: Boogie Procedure Inliner took 19.23ms. Allocated memory is still 167.8MB. Free memory was 95.3MB in the beginning and 94.1MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 8.0GB. [2025-02-17 22:45:38,633 INFO L158 Benchmark]: Boogie Preprocessor took 12.10ms. Allocated memory is still 167.8MB. Free memory was 94.1MB in the beginning and 93.3MB in the end (delta: 764.9kB). There was no memory consumed. Max. memory is 8.0GB. [2025-02-17 22:45:38,635 INFO L158 Benchmark]: RCFGBuilder took 134.40ms. Allocated memory is still 167.8MB. Free memory was 93.3MB in the beginning and 84.7MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2025-02-17 22:45:38,637 INFO L158 Benchmark]: BuchiAutomizer took 2215.85ms. Allocated memory was 167.8MB in the beginning and 155.2MB in the end (delta: -12.6MB). Free memory was 84.6MB in the beginning and 38.1MB in the end (delta: 46.5MB). Peak memory consumption was 37.0MB. Max. memory is 8.0GB. [2025-02-17 22:45:38,638 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 0.16ms. Allocated memory is still 167.8MB. Free memory is still 96.2MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 19.23ms. Allocated memory is still 167.8MB. Free memory was 95.3MB in the beginning and 94.1MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 8.0GB. * Boogie Preprocessor took 12.10ms. Allocated memory is still 167.8MB. Free memory was 94.1MB in the beginning and 93.3MB in the end (delta: 764.9kB). There was no memory consumed. Max. memory is 8.0GB. * RCFGBuilder took 134.40ms. Allocated memory is still 167.8MB. Free memory was 93.3MB in the beginning and 84.7MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * BuchiAutomizer took 2215.85ms. Allocated memory was 167.8MB in the beginning and 155.2MB in the end (delta: -12.6MB). Free memory was 84.6MB in the beginning and 38.1MB in the end (delta: 46.5MB). Peak memory consumption was 37.0MB. 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 4 terminating modules (0 trivial, 4 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -1 * x1 + z and consists of 4 locations. One deterministic module has affine ranking function -1 * x3 + z and consists of 4 locations. One deterministic module has affine ranking function z + -1 * x2 and consists of 4 locations. One deterministic module has affine ranking function -1 * x4 + z and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.1s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 1.2s. Construction of modules took 0.1s. Büchi inclusion checks took 0.5s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 66 StatesRemovedByMinimization, 3 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, 126 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 122 mSDsluCounter, 123 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 56 mSDsCounter, 14 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 159 IncrementalHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 14 mSolverCounterUnsat, 67 mSDtfsCounter, 159 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT4 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital14 mio100 ax100 hnf100 lsp85 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq150 hnf94 smp100 dnf100 smp100 tf111 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 38ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 2 LassoNonterminationAnalysisUnsat: 4 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.4s 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 22:45:38,649 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 22:45:38,850 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2025-02-17 22:45:39,050 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2025-02-17 22:45:39,253 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request...