/root/.sdkman/candidates/java/21.0.5-tem/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/buchiAutomizer/concurrent-automaton-noLbe.epf -tc ../../../trunk/examples/toolchains/BuchiAutomizerBplInline.xml -i /storage/cav23-termute-examples/4_plus_thr/indep_loops_7.c.bpl -------------------------------------------------------------------------------- This is Ultimate 0.3.0-wip.dk.ample-buchi-a4216cd-m [2025-04-26 16:24:51,026 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-26 16:24:51,080 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/settings/buchiAutomizer/concurrent-automaton-noLbe.epf [2025-04-26 16:24:51,083 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-26 16:24:51,083 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-26 16:24:51,105 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-26 16:24:51,106 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-26 16:24:51,106 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-26 16:24:51,107 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-26 16:24:51,107 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-26 16:24:51,107 INFO L153 SettingsManager]: * Use SBE=true [2025-04-26 16:24:51,107 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2025-04-26 16:24:51,108 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2025-04-26 16:24:51,108 INFO L153 SettingsManager]: * Use old map elimination=false [2025-04-26 16:24:51,108 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2025-04-26 16:24:51,108 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2025-04-26 16:24:51,108 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2025-04-26 16:24:51,108 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-26 16:24:51,108 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2025-04-26 16:24:51,108 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-26 16:24:51,108 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-26 16:24:51,108 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-26 16:24:51,108 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-26 16:24:51,108 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2025-04-26 16:24:51,108 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2025-04-26 16:24:51,108 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2025-04-26 16:24:51,108 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-04-26 16:24:51,108 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-26 16:24:51,108 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-26 16:24:51,108 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2025-04-26 16:24:51,108 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-26 16:24:51,109 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-26 16:24:51,109 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-26 16:24:51,109 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-26 16:24:51,109 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-26 16:24:51,109 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2025-04-26 16:24:51,109 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR [2025-04-26 16:24:51,350 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-26 16:24:51,356 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-26 16:24:51,358 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-26 16:24:51,359 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2025-04-26 16:24:51,359 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2025-04-26 16:24:51,361 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/cav23-termute-examples/4_plus_thr/indep_loops_7.c.bpl [2025-04-26 16:24:51,362 INFO L110 BoogieParser]: Parsing: '/storage/cav23-termute-examples/4_plus_thr/indep_loops_7.c.bpl' [2025-04-26 16:24:51,377 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-26 16:24:51,378 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2025-04-26 16:24:51,379 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-26 16:24:51,379 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-26 16:24:51,379 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-26 16:24:51,386 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "indep_loops_7.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:24:51" (1/1) ... [2025-04-26 16:24:51,402 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "indep_loops_7.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:24:51" (1/1) ... [2025-04-26 16:24:51,407 INFO L138 Inliner]: procedures = 8, calls = 7, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2025-04-26 16:24:51,408 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-26 16:24:51,409 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-26 16:24:51,409 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-26 16:24:51,409 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-26 16:24:51,414 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "indep_loops_7.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:24:51" (1/1) ... [2025-04-26 16:24:51,414 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "indep_loops_7.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:24:51" (1/1) ... [2025-04-26 16:24:51,416 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "indep_loops_7.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:24:51" (1/1) ... [2025-04-26 16:24:51,416 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "indep_loops_7.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:24:51" (1/1) ... [2025-04-26 16:24:51,417 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "indep_loops_7.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:24:51" (1/1) ... [2025-04-26 16:24:51,418 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "indep_loops_7.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:24:51" (1/1) ... [2025-04-26 16:24:51,423 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "indep_loops_7.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:24:51" (1/1) ... [2025-04-26 16:24:51,426 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "indep_loops_7.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:24:51" (1/1) ... [2025-04-26 16:24:51,426 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "indep_loops_7.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:24:51" (1/1) ... [2025-04-26 16:24:51,434 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-26 16:24:51,434 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-26 16:24:51,434 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-26 16:24:51,436 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-26 16:24:51,436 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "indep_loops_7.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:24:51" (1/1) ... [2025-04-26 16:24:51,440 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:51,446 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:51,458 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:24:51,460 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2025-04-26 16:24:51,483 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2025-04-26 16:24:51,483 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-04-26 16:24:51,483 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-04-26 16:24:51,483 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2025-04-26 16:24:51,483 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-04-26 16:24:51,483 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-04-26 16:24:51,484 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2025-04-26 16:24:51,484 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-04-26 16:24:51,484 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-04-26 16:24:51,484 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2025-04-26 16:24:51,484 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-26 16:24:51,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-26 16:24:51,484 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2025-04-26 16:24:51,484 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2025-04-26 16:24:51,484 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2025-04-26 16:24:51,484 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread5 given in one single declaration [2025-04-26 16:24:51,484 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2025-04-26 16:24:51,484 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2025-04-26 16:24:51,484 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread6 given in one single declaration [2025-04-26 16:24:51,484 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2025-04-26 16:24:51,484 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2025-04-26 16:24:51,485 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread7 given in one single declaration [2025-04-26 16:24:51,485 INFO L130 BoogieDeclarations]: Found specification of procedure thread7 [2025-04-26 16:24:51,485 INFO L138 BoogieDeclarations]: Found implementation of procedure thread7 [2025-04-26 16:24:51,486 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-04-26 16:24:51,524 INFO L234 CfgBuilder]: Building ICFG [2025-04-26 16:24:51,526 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-26 16:24:51,613 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-26 16:24:51,613 INFO L283 CfgBuilder]: Performing block encoding [2025-04-26 16:24:51,620 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-26 16:24:51,622 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-04-26 16:24:51,624 INFO L201 PluginConnector]: Adding new model indep_loops_7.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.04 04:24:51 BoogieIcfgContainer [2025-04-26 16:24:51,624 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-26 16:24:51,625 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2025-04-26 16:24:51,625 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2025-04-26 16:24:51,629 INFO L274 PluginConnector]: BuchiAutomizer initialized [2025-04-26 16:24:51,629 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-04-26 16:24:51,629 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "indep_loops_7.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.04 04:24:51" (1/2) ... [2025-04-26 16:24:51,630 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@56615d3a and model type indep_loops_7.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.04 04:24:51, skipping insertion in model container [2025-04-26 16:24:51,630 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-04-26 16:24:51,630 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "indep_loops_7.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.04 04:24:51" (2/2) ... [2025-04-26 16:24:51,631 INFO L376 chiAutomizerObserver]: Analyzing ICFG indep_loops_7.c.bpl [2025-04-26 16:24:51,707 INFO L143 ThreadInstanceAdder]: Constructed 7 joinOtherThreadTransitions. [2025-04-26 16:24:51,736 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 65 places, 57 transitions, 163 flow [2025-04-26 16:24:51,760 INFO L116 PetriNetUnfolderBase]: 7/43 cut-off events. [2025-04-26 16:24:51,764 INFO L117 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2025-04-26 16:24:51,770 INFO L83 FinitePrefix]: Finished finitePrefix Result has 72 conditions, 43 events. 7/43 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 73 event pairs, 0 based on Foata normal form. 0/36 useless extension candidates. Maximal degree in co-relation 46. Up to 2 conditions per place. [2025-04-26 16:24:51,771 INFO L82 GeneralOperation]: Start removeDead. Operand has 65 places, 57 transitions, 163 flow [2025-04-26 16:24:51,776 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 58 places, 43 transitions, 128 flow [2025-04-26 16:24:51,776 INFO L84 lAbstractionProvider]: Constructed initial Petri net abstraction that has has 58 places, 43 transitions, 128 flow [2025-04-26 16:24:51,785 INFO L306 stractBuchiCegarLoop]: Interprodecural is true [2025-04-26 16:24:51,785 INFO L307 stractBuchiCegarLoop]: Hoare is None [2025-04-26 16:24:51,785 INFO L308 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2025-04-26 16:24:51,785 INFO L309 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2025-04-26 16:24:51,785 INFO L310 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2025-04-26 16:24:51,785 INFO L311 stractBuchiCegarLoop]: Difference is false [2025-04-26 16:24:51,785 INFO L312 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2025-04-26 16:24:51,785 INFO L316 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2025-04-26 16:24:51,787 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 0 states, but on-demand construction may add more states [2025-04-26 16:24:54,290 INFO L131 ngComponentsAnalysis]: Automaton has 3991 accepting balls. 26924 [2025-04-26 16:24:54,290 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 16:24:54,290 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 16:24:54,295 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1] [2025-04-26 16:24:54,295 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-04-26 16:24:54,295 INFO L340 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2025-04-26 16:24:54,295 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 27306 states, but on-demand construction may add more states [2025-04-26 16:24:55,053 INFO L131 ngComponentsAnalysis]: Automaton has 3991 accepting balls. 26924 [2025-04-26 16:24:55,053 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 16:24:55,053 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 16:24:55,055 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1] [2025-04-26 16:24:55,055 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-04-26 16:24:55,059 INFO L752 eck$LassoCheckResult]: Stem: "[137] $Ultimate##0-->L32: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" [2025-04-26 16:24:55,060 INFO L754 eck$LassoCheckResult]: Loop: "[108] L32-->L34: 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[]" "[110] L34-->L32: Formula: (= v_x1_2 (+ v_x1_3 1)) InVars {x1=v_x1_3} OutVars{x1=v_x1_2} AuxVars[] AssignedVars[x1]" [2025-04-26 16:24:55,063 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:24:55,063 INFO L85 PathProgramCache]: Analyzing trace with hash 168, now seen corresponding path program 1 times [2025-04-26 16:24:55,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:24:55,070 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702672334] [2025-04-26 16:24:55,070 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:24:55,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:24:55,112 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-04-26 16:24:55,117 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-04-26 16:24:55,117 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:55,117 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:55,117 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:24:55,119 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-04-26 16:24:55,120 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-04-26 16:24:55,120 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:55,120 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:55,133 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:24:55,135 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:24:55,135 INFO L85 PathProgramCache]: Analyzing trace with hash 4419, now seen corresponding path program 1 times [2025-04-26 16:24:55,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:24:55,135 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443758833] [2025-04-26 16:24:55,135 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:24:55,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:24:55,139 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:24:55,142 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:24:55,142 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:55,142 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:55,142 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:24:55,146 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:24:55,147 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:24:55,147 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:55,147 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:55,149 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:24:55,150 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:24:55,150 INFO L85 PathProgramCache]: Analyzing trace with hash 164906, now seen corresponding path program 1 times [2025-04-26 16:24:55,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:24:55,150 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114319691] [2025-04-26 16:24:55,150 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:24:55,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:24:55,152 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:24:55,153 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:24:55,153 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:55,153 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:55,153 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:24:55,154 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:24:55,155 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:24:55,155 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:55,155 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:24:55,157 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:24:55,214 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:24:55,215 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:24:55,216 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:24:55,217 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:24:55,217 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-04-26 16:24:55,217 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:55,217 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:24:55,217 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:24:55,217 INFO L132 ssoRankerPreferences]: Filename of dumped script: indep_loops_7.c.bpl_petrified1_Iteration1_Loop [2025-04-26 16:24:55,217 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:24:55,217 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:24:55,235 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:55,275 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:24:55,276 INFO L367 LassoAnalysis]: Checking for nontermination... [2025-04-26 16:24:55,278 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:55,278 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:55,282 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:24:55,283 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2025-04-26 16:24:55,284 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:24:55,284 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:24:55,302 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2025-04-26 16:24:55,302 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:55,303 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:55,304 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:24:55,305 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2025-04-26 16:24:55,306 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 16:24:55,306 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:24:55,375 INFO L407 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-04-26 16:24:55,379 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2025-04-26 16:24:55,379 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:24:55,380 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:24:55,380 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:24:55,380 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:24:55,380 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-04-26 16:24:55,380 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:55,380 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:24:55,380 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:24:55,380 INFO L132 ssoRankerPreferences]: Filename of dumped script: indep_loops_7.c.bpl_petrified1_Iteration1_Loop [2025-04-26 16:24:55,380 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:24:55,380 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:24:55,384 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:24:55,410 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:24:55,462 INFO L453 LassoAnalysis]: Using template 'affine'. [2025-04-26 16:24:55,463 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:55,463 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:55,465 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:24:55,467 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2025-04-26 16:24:55,470 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-04-26 16:24:55,489 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:24:55,489 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-04-26 16:24:55,490 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:24:55,491 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:24:55,492 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:24:55,498 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-04-26 16:24:55,498 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-04-26 16:24:55,503 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-04-26 16:24:55,512 INFO L436 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2025-04-26 16:24:55,513 INFO L437 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-04-26 16:24:55,514 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:24:55,514 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:24:55,519 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:24:55,520 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2025-04-26 16:24:55,523 INFO L436 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-04-26 16:24:55,527 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2025-04-26 16:24:55,528 INFO L439 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-04-26 16:24:55,528 INFO L476 LassoAnalysis]: Proved termination. [2025-04-26 16:24:55,529 INFO L478 LassoAnalysis]: Termination argument consisting of: Ranking function f(z, x1) = 1*z - 1*x1 Supporting invariants [] [2025-04-26 16:24:55,534 ERROR L418 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Exception during sending of exit command (exit): Broken pipe [2025-04-26 16:24:55,534 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2025-04-26 16:24:55,539 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-04-26 16:24:55,575 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:24:55,589 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-04-26 16:24:55,590 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-04-26 16:24:55,590 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:55,590 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:24:55,591 WARN L254 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-04-26 16:24:55,592 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:24:55,602 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:24:55,603 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:24:55,603 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:24:55,603 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:24:55,604 WARN L254 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-04-26 16:24:55,605 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:24:55,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-26 16:24:55,670 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2025-04-26 16:24:55,676 INFO L70 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand currently 27306 states, but on-demand construction may add more states Second operand has 3 states, 3 states have (on average 1.0) internal successors, (in total 3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:24:57,707 INFO L74 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand currently 27306 states, but on-demand construction may add more states. Second operand has 3 states, 3 states have (on average 1.0) internal successors, (in total 3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) Result 76453 states and 569338 transitions. Complement of second has 6 states. [2025-04-26 16:24:57,710 INFO L140 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2025-04-26 16:24:57,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.0) internal successors, (in total 3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:24:57,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 105 transitions. [2025-04-26 16:24:57,723 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 105 transitions. Stem has 1 letters. Loop has 2 letters. [2025-04-26 16:24:57,723 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:24:57,723 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 105 transitions. Stem has 3 letters. Loop has 2 letters. [2025-04-26 16:24:57,723 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:24:57,724 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 105 transitions. Stem has 1 letters. Loop has 4 letters. [2025-04-26 16:24:57,724 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:24:57,724 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 76453 states and 569338 transitions. [2025-04-26 16:25:00,344 INFO L131 ngComponentsAnalysis]: Automaton has 4830 accepting balls. 26670 [2025-04-26 16:25:01,930 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 76453 states to 59301 states and 446221 transitions. [2025-04-26 16:25:01,931 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 26921 [2025-04-26 16:25:02,193 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 43111 [2025-04-26 16:25:02,194 INFO L74 IsDeterministic]: Start isDeterministic. Operand 59301 states and 446221 transitions. [2025-04-26 16:25:02,194 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-04-26 16:25:02,194 INFO L218 hiAutomatonCegarLoop]: Abstraction has 59301 states and 446221 transitions. [2025-04-26 16:25:02,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59301 states and 446221 transitions. [2025-04-26 16:25:04,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59301 to 43113. [2025-04-26 16:25:04,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43113 states, 43113 states have (on average 7.7528587664973445) internal successors, (in total 334249), 43112 states have internal predecessors, (334249), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:25:05,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43113 states to 43113 states and 334249 transitions. [2025-04-26 16:25:05,428 INFO L240 hiAutomatonCegarLoop]: Abstraction has 43113 states and 334249 transitions. [2025-04-26 16:25:05,428 INFO L438 stractBuchiCegarLoop]: Abstraction has 43113 states and 334249 transitions. [2025-04-26 16:25:05,428 INFO L340 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2025-04-26 16:25:05,428 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand 43113 states and 334249 transitions. [2025-04-26 16:25:06,061 INFO L131 ngComponentsAnalysis]: Automaton has 4830 accepting balls. 26670 [2025-04-26 16:25:06,061 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 16:25:06,061 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 16:25:06,064 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2025-04-26 16:25:06,064 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-04-26 16:25:06,064 INFO L752 eck$LassoCheckResult]: Stem: "[137] $Ultimate##0-->L32: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" "[140] L13-->L41: Formula: (and (= 2 v_thread2Thread1of1ForFork1_thidvar1_2) (= 2 v_thread2Thread1of1ForFork1_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_2, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_thidvar0, thread2Thread1of1ForFork1_thidvar1]" [2025-04-26 16:25:06,064 INFO L754 eck$LassoCheckResult]: Loop: "[112] L41-->L43: Formula: (< v_x2_1 v_z_3) InVars {x2=v_x2_1, z=v_z_3} OutVars{x2=v_x2_1, z=v_z_3} AuxVars[] AssignedVars[]" "[114] L43-->L41: Formula: (= v_x2_2 (+ v_x2_3 1)) InVars {x2=v_x2_3} OutVars{x2=v_x2_2} AuxVars[] AssignedVars[x2]" [2025-04-26 16:25:06,065 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:25:06,065 INFO L85 PathProgramCache]: Analyzing trace with hash 5348, now seen corresponding path program 1 times [2025-04-26 16:25:06,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:25:06,065 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [227284423] [2025-04-26 16:25:06,065 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:25:06,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:25:06,068 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:25:06,068 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:25:06,068 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:25:06,069 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:25:06,069 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:25:06,069 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:25:06,070 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:25:06,070 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:25:06,070 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:25:06,071 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:25:06,072 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:25:06,072 INFO L85 PathProgramCache]: Analyzing trace with hash 4547, now seen corresponding path program 1 times [2025-04-26 16:25:06,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:25:06,072 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918607233] [2025-04-26 16:25:06,072 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:25:06,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:25:06,074 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:25:06,075 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:25:06,076 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:25:06,076 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:25:06,076 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:25:06,076 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:25:06,077 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:25:06,077 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:25:06,077 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:25:06,078 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:25:06,079 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:25:06,079 INFO L85 PathProgramCache]: Analyzing trace with hash 5143014, now seen corresponding path program 1 times [2025-04-26 16:25:06,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:25:06,079 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268610473] [2025-04-26 16:25:06,079 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:25:06,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:25:06,081 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-26 16:25:06,082 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-26 16:25:06,082 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:25:06,082 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:25:06,082 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:25:06,083 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-04-26 16:25:06,084 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-04-26 16:25:06,084 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:25:06,084 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:25:06,085 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:25:06,100 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:25:06,100 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:25:06,100 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:25:06,100 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:25:06,100 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-04-26 16:25:06,100 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:25:06,101 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:25:06,101 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:25:06,101 INFO L132 ssoRankerPreferences]: Filename of dumped script: indep_loops_7.c.bpl_petrified1_Iteration2_Loop [2025-04-26 16:25:06,101 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:25:06,101 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:25:06,101 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:25:06,116 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:25:06,116 INFO L367 LassoAnalysis]: Checking for nontermination... [2025-04-26 16:25:06,116 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:25:06,116 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:25:06,118 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:25:06,120 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2025-04-26 16:25:06,121 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:25:06,121 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:25:06,137 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2025-04-26 16:25:06,137 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:25:06,137 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:25:06,140 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:25:06,141 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2025-04-26 16:25:06,142 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 16:25:06,142 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:25:06,206 INFO L407 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-04-26 16:25:06,210 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2025-04-26 16:25:06,211 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:25:06,211 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:25:06,211 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:25:06,211 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:25:06,211 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-04-26 16:25:06,211 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:25:06,211 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:25:06,211 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:25:06,211 INFO L132 ssoRankerPreferences]: Filename of dumped script: indep_loops_7.c.bpl_petrified1_Iteration2_Loop [2025-04-26 16:25:06,211 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:25:06,211 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:25:06,212 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:25:06,232 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:25:06,232 INFO L453 LassoAnalysis]: Using template 'affine'. [2025-04-26 16:25:06,232 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:25:06,232 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:25:06,234 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:25:06,235 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2025-04-26 16:25:06,236 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-04-26 16:25:06,245 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:25:06,245 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-04-26 16:25:06,245 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:25:06,245 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:25:06,246 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:25:06,247 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-04-26 16:25:06,247 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-04-26 16:25:06,249 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-04-26 16:25:06,252 INFO L436 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2025-04-26 16:25:06,252 INFO L437 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-04-26 16:25:06,252 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:25:06,252 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:25:06,254 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:25:06,254 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2025-04-26 16:25:06,255 INFO L436 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-04-26 16:25:06,258 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2025-04-26 16:25:06,258 INFO L439 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-04-26 16:25:06,259 INFO L476 LassoAnalysis]: Proved termination. [2025-04-26 16:25:06,259 INFO L478 LassoAnalysis]: Termination argument consisting of: Ranking function f(z, x2) = 1*z - 1*x2 Supporting invariants [] [2025-04-26 16:25:06,264 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2025-04-26 16:25:06,265 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-04-26 16:25:06,283 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:25:06,290 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:25:06,292 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:25:06,292 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:25:06,292 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:25:06,292 INFO L256 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-04-26 16:25:06,292 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:25:06,298 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:25:06,303 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:25:06,303 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:25:06,303 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:25:06,304 WARN L254 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-04-26 16:25:06,304 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:25:06,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-26 16:25:06,319 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2025-04-26 16:25:06,319 INFO L70 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 43113 states and 334249 transitions. cyclomatic complexity: 296995 Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (in total 4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:25:09,188 INFO L74 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 43113 states and 334249 transitions. cyclomatic complexity: 296995. Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (in total 4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) Result 132275 states and 1065162 transitions. Complement of second has 6 states. [2025-04-26 16:25:09,188 INFO L140 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2025-04-26 16:25:09,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (in total 4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:25:09,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 107 transitions. [2025-04-26 16:25:09,189 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 107 transitions. Stem has 2 letters. Loop has 2 letters. [2025-04-26 16:25:09,189 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:25:09,189 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 107 transitions. Stem has 4 letters. Loop has 2 letters. [2025-04-26 16:25:09,189 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:25:09,189 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 107 transitions. Stem has 2 letters. Loop has 4 letters. [2025-04-26 16:25:09,189 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:25:09,190 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 132275 states and 1065162 transitions. [2025-04-26 16:25:12,904 INFO L131 ngComponentsAnalysis]: Automaton has 5961 accepting balls. 26102 [2025-04-26 16:25:15,498 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 132275 states to 100537 states and 815997 transitions. [2025-04-26 16:25:15,498 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 35935 [2025-04-26 16:25:15,884 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 54906 [2025-04-26 16:25:15,884 INFO L74 IsDeterministic]: Start isDeterministic. Operand 100537 states and 815997 transitions. [2025-04-26 16:25:15,884 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-04-26 16:25:15,885 INFO L218 hiAutomatonCegarLoop]: Abstraction has 100537 states and 815997 transitions. [2025-04-26 16:25:16,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100537 states and 815997 transitions. [2025-04-26 16:25:19,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100537 to 81566. [2025-04-26 16:25:19,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81566 states, 81566 states have (on average 8.44151975087659) internal successors, (in total 688541), 81565 states have internal predecessors, (688541), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:25:20,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81566 states to 81566 states and 688541 transitions. [2025-04-26 16:25:20,812 INFO L240 hiAutomatonCegarLoop]: Abstraction has 81566 states and 688541 transitions. [2025-04-26 16:25:20,812 INFO L438 stractBuchiCegarLoop]: Abstraction has 81566 states and 688541 transitions. [2025-04-26 16:25:20,812 INFO L340 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2025-04-26 16:25:20,812 INFO L73 BuchiIsEmpty]: Start buchiIsEmpty. Operand 81566 states and 688541 transitions. [2025-04-26 16:25:22,129 INFO L131 ngComponentsAnalysis]: Automaton has 5961 accepting balls. 26102 [2025-04-26 16:25:22,130 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-04-26 16:25:22,130 INFO L120 BuchiIsEmpty]: Starting construction of run [2025-04-26 16:25:22,133 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2025-04-26 16:25:22,133 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-04-26 16:25:22,133 INFO L752 eck$LassoCheckResult]: Stem: "[137] $Ultimate##0-->L32: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" "[140] L13-->L41: Formula: (and (= 2 v_thread2Thread1of1ForFork1_thidvar1_2) (= 2 v_thread2Thread1of1ForFork1_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_2, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_thidvar0, thread2Thread1of1ForFork1_thidvar1]" "[143] L14-->L50: Formula: (and (= 3 v_thread3Thread1of1ForFork2_thidvar0_2) (= 3 v_thread3Thread1of1ForFork2_thidvar1_2) (= 3 v_thread3Thread1of1ForFork2_thidvar2_2)) InVars {} OutVars{thread3Thread1of1ForFork2_thidvar2=v_thread3Thread1of1ForFork2_thidvar2_2, thread3Thread1of1ForFork2_thidvar1=v_thread3Thread1of1ForFork2_thidvar1_2, thread3Thread1of1ForFork2_thidvar0=v_thread3Thread1of1ForFork2_thidvar0_2} AuxVars[] AssignedVars[thread3Thread1of1ForFork2_thidvar2, thread3Thread1of1ForFork2_thidvar1, thread3Thread1of1ForFork2_thidvar0]" [2025-04-26 16:25:22,133 INFO L754 eck$LassoCheckResult]: Loop: "[116] L50-->L52: Formula: (< v_x3_1 v_z_5) InVars {x3=v_x3_1, z=v_z_5} OutVars{x3=v_x3_1, z=v_z_5} AuxVars[] AssignedVars[]" "[118] L52-->L50: Formula: (= v_x3_2 (+ v_x3_3 1)) InVars {x3=v_x3_3} OutVars{x3=v_x3_2} AuxVars[] AssignedVars[x3]" [2025-04-26 16:25:22,133 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:25:22,133 INFO L85 PathProgramCache]: Analyzing trace with hash 165931, now seen corresponding path program 1 times [2025-04-26 16:25:22,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:25:22,134 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950414064] [2025-04-26 16:25:22,134 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:25:22,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:25:22,136 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:25:22,137 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:25:22,137 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:25:22,137 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:25:22,137 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:25:22,138 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:25:22,139 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:25:22,139 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:25:22,139 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:25:22,140 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:25:22,140 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:25:22,140 INFO L85 PathProgramCache]: Analyzing trace with hash 4675, now seen corresponding path program 1 times [2025-04-26 16:25:22,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:25:22,141 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348079441] [2025-04-26 16:25:22,141 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:25:22,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:25:22,142 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:25:22,143 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:25:22,143 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:25:22,143 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:25:22,143 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:25:22,144 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:25:22,145 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:25:22,145 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:25:22,145 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:25:22,146 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:25:22,146 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:25:22,146 INFO L85 PathProgramCache]: Analyzing trace with hash 159463405, now seen corresponding path program 1 times [2025-04-26 16:25:22,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-26 16:25:22,146 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838222027] [2025-04-26 16:25:22,146 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-26 16:25:22,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-26 16:25:22,148 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-04-26 16:25:22,150 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-04-26 16:25:22,150 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:25:22,150 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:25:22,150 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-26 16:25:22,151 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-04-26 16:25:22,152 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-04-26 16:25:22,152 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:25:22,152 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-26 16:25:22,157 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-26 16:25:22,172 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:25:22,172 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:25:22,172 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:25:22,172 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:25:22,173 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-04-26 16:25:22,173 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:25:22,173 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:25:22,173 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:25:22,173 INFO L132 ssoRankerPreferences]: Filename of dumped script: indep_loops_7.c.bpl_petrified1_Iteration3_Loop [2025-04-26 16:25:22,173 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:25:22,173 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:25:22,173 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:25:22,190 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:25:22,190 INFO L367 LassoAnalysis]: Checking for nontermination... [2025-04-26 16:25:22,190 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:25:22,190 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:25:22,192 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:25:22,194 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2025-04-26 16:25:22,197 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-04-26 16:25:22,197 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:25:22,213 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2025-04-26 16:25:22,213 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:25:22,213 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:25:22,215 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:25:22,216 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2025-04-26 16:25:22,217 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-04-26 16:25:22,217 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-04-26 16:25:22,283 INFO L407 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-04-26 16:25:22,290 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2025-04-26 16:25:22,291 INFO L206 LassoAnalysis]: Preferences: [2025-04-26 16:25:22,291 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-04-26 16:25:22,291 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-04-26 16:25:22,291 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-04-26 16:25:22,291 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-04-26 16:25:22,291 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:25:22,291 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-04-26 16:25:22,291 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-04-26 16:25:22,291 INFO L132 ssoRankerPreferences]: Filename of dumped script: indep_loops_7.c.bpl_petrified1_Iteration3_Loop [2025-04-26 16:25:22,291 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-04-26 16:25:22,291 INFO L243 LassoAnalysis]: Starting lasso preprocessing... [2025-04-26 16:25:22,292 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-04-26 16:25:22,313 INFO L261 LassoAnalysis]: Preprocessing complete. [2025-04-26 16:25:22,313 INFO L453 LassoAnalysis]: Using template 'affine'. [2025-04-26 16:25:22,313 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:25:22,313 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:25:22,318 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:25:22,320 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2025-04-26 16:25:22,322 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-04-26 16:25:22,332 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-04-26 16:25:22,332 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-04-26 16:25:22,332 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-04-26 16:25:22,332 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-04-26 16:25:22,332 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-04-26 16:25:22,334 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-04-26 16:25:22,334 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-04-26 16:25:22,336 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-04-26 16:25:22,338 INFO L436 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-04-26 16:25:22,339 INFO L437 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-04-26 16:25:22,339 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-04-26 16:25:22,339 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-26 16:25:22,342 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-04-26 16:25:22,343 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2025-04-26 16:25:22,344 INFO L436 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-04-26 16:25:22,347 ERROR L418 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Exception during sending of exit command (exit): Broken pipe [2025-04-26 16:25:22,348 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2025-04-26 16:25:22,348 INFO L439 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-04-26 16:25:22,348 INFO L476 LassoAnalysis]: Proved termination. [2025-04-26 16:25:22,348 INFO L478 LassoAnalysis]: Termination argument consisting of: Ranking function f(z, x3) = 1*z - 1*x3 Supporting invariants [] [2025-04-26 16:25:22,354 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2025-04-26 16:25:22,355 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-04-26 16:25:22,369 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-26 16:25:22,375 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-04-26 16:25:22,377 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-04-26 16:25:22,378 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:25:22,378 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:25:22,378 INFO L256 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-04-26 16:25:22,378 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:25:22,387 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-04-26 16:25:22,388 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-04-26 16:25:22,388 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-26 16:25:22,388 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-26 16:25:22,388 WARN L254 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-04-26 16:25:22,389 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-26 16:25:22,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-26 16:25:22,408 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2025-04-26 16:25:22,408 INFO L70 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 81566 states and 688541 transitions. cyclomatic complexity: 616136 Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (in total 5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:25:28,345 INFO L74 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 81566 states and 688541 transitions. cyclomatic complexity: 616136. Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (in total 5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) Result 256668 states and 2216431 transitions. Complement of second has 6 states. [2025-04-26 16:25:28,345 INFO L140 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2025-04-26 16:25:28,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (in total 5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0) [2025-04-26 16:25:28,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 111 transitions. [2025-04-26 16:25:28,346 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 111 transitions. Stem has 3 letters. Loop has 2 letters. [2025-04-26 16:25:28,346 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:25:28,346 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 111 transitions. Stem has 5 letters. Loop has 2 letters. [2025-04-26 16:25:28,347 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:25:28,347 INFO L85 BuchiAccepts]: Start buchiAccepts Operand 4 states and 111 transitions. Stem has 3 letters. Loop has 4 letters. [2025-04-26 16:25:28,347 INFO L117 BuchiAccepts]: Finished buchiAccepts. [2025-04-26 16:25:28,347 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 256668 states and 2216431 transitions. [2025-04-26 16:25:36,556 INFO L131 ngComponentsAnalysis]: Automaton has 7150 accepting balls. 24950 [2025-04-26 16:25:41,858 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 256668 states to 189170 states and 1638482 transitions. [2025-04-26 16:25:41,859 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 53949 [2025-04-26 16:25:42,302 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 73148 [2025-04-26 16:25:42,302 INFO L74 IsDeterministic]: Start isDeterministic. Operand 189170 states and 1638482 transitions. [2025-04-26 16:25:42,302 INFO L81 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-04-26 16:25:42,302 INFO L218 hiAutomatonCegarLoop]: Abstraction has 189170 states and 1638482 transitions. [2025-04-26 16:25:42,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189170 states and 1638482 transitions. [2025-04-26 16:25:48,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189170 to 159192. [2025-04-26 16:25:49,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159192 states, 159192 states have (on average 8.965494497210916) internal successors, (in total 1427235), 159191 states have internal predecessors, (1427235), 0 states have call successors, (0), 0 states have call predecessors, (in total 0), 0 states have return successors, (0), 0 states have call predecessors, ( in total0), 0 states have call successors, (0)