/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 --buchiautomizer.automaton.type.for.concurrent.programs PARTIAL_ORDER_BA -tc ../../../trunk/examples/toolchains/BuchiAutomizerBplInline.xml -i /storage/cav23-termute-examples/4_plus_thr/indep_loops_minus1_6.c.bpl -------------------------------------------------------------------------------- This is Ultimate 0.3.0-wip.dk.ample-buchi-601be74-m [2025-02-17 22:49:36,903 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-17 22:49:36,955 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/settings/buchiAutomizer/concurrent-automaton-noLbe.epf [2025-02-17 22:49:36,958 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-17 22:49:36,959 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-17 22:49:36,979 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-17 22:49:36,981 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-17 22:49:36,981 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-17 22:49:36,981 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-17 22:49:36,981 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-17 22:49:36,982 INFO L153 SettingsManager]: * Use SBE=true [2025-02-17 22:49:36,982 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2025-02-17 22:49:36,982 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2025-02-17 22:49:36,982 INFO L153 SettingsManager]: * Use old map elimination=false [2025-02-17 22:49:36,983 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2025-02-17 22:49:36,983 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2025-02-17 22:49:36,983 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2025-02-17 22:49:36,983 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-17 22:49:36,983 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2025-02-17 22:49:36,983 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-17 22:49:36,983 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-17 22:49:36,983 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-17 22:49:36,983 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-17 22:49:36,983 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2025-02-17 22:49:36,983 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2025-02-17 22:49:36,983 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2025-02-17 22:49:36,983 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-17 22:49:36,983 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-17 22:49:36,983 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-17 22:49:36,983 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2025-02-17 22:49:36,984 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-17 22:49:36,984 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-02-17 22:49:36,984 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-17 22:49:36,984 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-17 22:49:36,984 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-17 22:49:36,984 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2025-02-17 22:49:36,984 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: Automaton type for concurrent programs -> PARTIAL_ORDER_BA [2025-02-17 22:49:37,206 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-17 22:49:37,213 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-17 22:49:37,214 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-17 22:49:37,215 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2025-02-17 22:49:37,217 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2025-02-17 22:49:37,218 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/cav23-termute-examples/4_plus_thr/indep_loops_minus1_6.c.bpl [2025-02-17 22:49:37,219 INFO L110 BoogieParser]: Parsing: '/storage/cav23-termute-examples/4_plus_thr/indep_loops_minus1_6.c.bpl' [2025-02-17 22:49:37,232 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-17 22:49:37,234 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2025-02-17 22:49:37,235 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-17 22:49:37,235 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-17 22:49:37,235 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-17 22:49:37,243 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "indep_loops_minus1_6.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:49:37" (1/1) ... [2025-02-17 22:49:37,247 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "indep_loops_minus1_6.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:49:37" (1/1) ... [2025-02-17 22:49:37,252 INFO L138 Inliner]: procedures = 7, calls = 6, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2025-02-17 22:49:37,254 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-17 22:49:37,255 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-17 22:49:37,255 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-17 22:49:37,255 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-17 22:49:37,259 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "indep_loops_minus1_6.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:49:37" (1/1) ... [2025-02-17 22:49:37,259 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "indep_loops_minus1_6.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:49:37" (1/1) ... [2025-02-17 22:49:37,260 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "indep_loops_minus1_6.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:49:37" (1/1) ... [2025-02-17 22:49:37,260 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "indep_loops_minus1_6.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:49:37" (1/1) ... [2025-02-17 22:49:37,261 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "indep_loops_minus1_6.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:49:37" (1/1) ... [2025-02-17 22:49:37,262 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "indep_loops_minus1_6.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:49:37" (1/1) ... [2025-02-17 22:49:37,265 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "indep_loops_minus1_6.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:49:37" (1/1) ... [2025-02-17 22:49:37,266 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "indep_loops_minus1_6.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:49:37" (1/1) ... [2025-02-17 22:49:37,266 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "indep_loops_minus1_6.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:49:37" (1/1) ... [2025-02-17 22:49:37,268 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-17 22:49:37,269 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-02-17 22:49:37,269 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-02-17 22:49:37,269 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-02-17 22:49:37,270 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "indep_loops_minus1_6.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:49:37" (1/1) ... [2025-02-17 22:49:37,277 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:49:37,285 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:49:37,304 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 22:49:37,307 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 22:49:37,330 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2025-02-17 22:49:37,330 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-02-17 22:49:37,331 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-02-17 22:49:37,331 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2025-02-17 22:49:37,331 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-02-17 22:49:37,331 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-02-17 22:49:37,332 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2025-02-17 22:49:37,332 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-02-17 22:49:37,332 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-02-17 22:49:37,332 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2025-02-17 22:49:37,332 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-17 22:49:37,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-17 22:49:37,332 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2025-02-17 22:49:37,332 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2025-02-17 22:49:37,332 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2025-02-17 22:49:37,332 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread5 given in one single declaration [2025-02-17 22:49:37,332 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2025-02-17 22:49:37,332 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2025-02-17 22:49:37,332 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread6 given in one single declaration [2025-02-17 22:49:37,332 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2025-02-17 22:49:37,332 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2025-02-17 22:49:37,333 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 22:49:37,366 INFO L234 CfgBuilder]: Building ICFG [2025-02-17 22:49:37,368 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-17 22:49:37,444 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-17 22:49:37,444 INFO L283 CfgBuilder]: Performing block encoding [2025-02-17 22:49:37,452 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-17 22:49:37,452 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-17 22:49:37,453 INFO L201 PluginConnector]: Adding new model indep_loops_minus1_6.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.02 10:49:37 BoogieIcfgContainer [2025-02-17 22:49:37,453 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-02-17 22:49:37,454 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2025-02-17 22:49:37,454 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2025-02-17 22:49:37,457 INFO L274 PluginConnector]: BuchiAutomizer initialized [2025-02-17 22:49:37,458 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-02-17 22:49:37,458 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "indep_loops_minus1_6.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:49:37" (1/2) ... [2025-02-17 22:49:37,458 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@23752d8e and model type indep_loops_minus1_6.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.02 10:49:37, skipping insertion in model container [2025-02-17 22:49:37,458 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-02-17 22:49:37,459 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "indep_loops_minus1_6.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.02 10:49:37" (2/2) ... [2025-02-17 22:49:37,459 INFO L363 chiAutomizerObserver]: Analyzing ICFG indep_loops_minus1_6.c.bpl [2025-02-17 22:49:37,530 INFO L143 ThreadInstanceAdder]: Constructed 6 joinOtherThreadTransitions. [2025-02-17 22:49:37,570 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 57 places, 50 transitions, 142 flow [2025-02-17 22:49:37,598 INFO L124 PetriNetUnfolderBase]: 6/38 cut-off events. [2025-02-17 22:49:37,603 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2025-02-17 22:49:37,607 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63 conditions, 38 events. 6/38 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 83 event pairs, 0 based on Foata normal form. 0/32 useless extension candidates. Maximal degree in co-relation 40. Up to 2 conditions per place. [2025-02-17 22:49:37,607 INFO L82 GeneralOperation]: Start removeDead. Operand has 57 places, 50 transitions, 142 flow [2025-02-17 22:49:37,610 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 51 places, 38 transitions, 112 flow [2025-02-17 22:49:37,615 WARN L98 AmpleReduction]: Starting ample reduction [2025-02-17 22:49:40,219 INFO L100 AmpleReduction]: Finished ample reduction [2025-02-17 22:49:40,219 INFO L101 AmpleReduction]: Number of pruned transitions: 4179, Number of non-trivial ample sets: 24174 [2025-02-17 22:49:40,219 INFO L103 AmpleReduction]: Number of trivial ample sets caused by loops: 21175 [2025-02-17 22:49:40,236 INFO L306 stractBuchiCegarLoop]: Interprodecural is true [2025-02-17 22:49:40,236 INFO L307 stractBuchiCegarLoop]: Hoare is None [2025-02-17 22:49:40,237 INFO L308 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2025-02-17 22:49:40,237 INFO L309 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2025-02-17 22:49:40,237 INFO L310 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2025-02-17 22:49:40,237 INFO L311 stractBuchiCegarLoop]: Difference is false [2025-02-17 22:49:40,237 INFO L312 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2025-02-17 22:49:40,237 INFO L316 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2025-02-17 22:49:40,277 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8435 states, 8434 states have (on average 5.387360682949964) internal successors, (45437), 8434 states have internal predecessors, (45437), 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 22:49:40,490 INFO L131 ngComponentsAnalysis]: Automaton has 1233 accepting balls. 8084 [2025-02-17 22:49:40,491 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-17 22:49:40,491 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-17 22:49:40,496 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1] [2025-02-17 22:49:40,496 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-02-17 22:49:40,497 INFO L338 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2025-02-17 22:49:40,535 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8435 states, 8434 states have (on average 5.387360682949964) internal successors, (45437), 8434 states have internal predecessors, (45437), 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 22:49:40,760 INFO L131 ngComponentsAnalysis]: Automaton has 1233 accepting balls. 8084 [2025-02-17 22:49:40,760 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-17 22:49:40,760 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-17 22:49:40,761 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1] [2025-02-17 22:49:40,761 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-02-17 22:49:40,766 INFO L752 eck$LassoCheckResult]: Stem: "[121] $Ultimate##0-->L29: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" [2025-02-17 22:49:40,767 INFO L754 eck$LassoCheckResult]: Loop: "[95] L29-->L31: 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[]" "[97] L31-->L29: Formula: (= v_x1_2 (+ v_x1_3 1)) InVars {x1=v_x1_3} OutVars{x1=v_x1_2} AuxVars[] AssignedVars[x1]" [2025-02-17 22:49:40,771 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:49:40,771 INFO L85 PathProgramCache]: Analyzing trace with hash 152, now seen corresponding path program 1 times [2025-02-17 22:49:40,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:49:40,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519192070] [2025-02-17 22:49:40,776 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:49:40,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:49:40,823 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-02-17 22:49:40,827 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-02-17 22:49:40,827 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:49:40,827 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:49:40,828 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:49:40,831 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-02-17 22:49:40,831 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-02-17 22:49:40,831 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:49:40,831 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:49:40,848 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:49:40,850 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:49:40,850 INFO L85 PathProgramCache]: Analyzing trace with hash 4003, now seen corresponding path program 1 times [2025-02-17 22:49:40,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:49:40,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380133598] [2025-02-17 22:49:40,852 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:49:40,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:49:40,855 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:49:40,860 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:49:40,861 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:49:40,861 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:49:40,861 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:49:40,863 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:49:40,864 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:49:40,864 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:49:40,864 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:49:40,867 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:49:40,869 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:49:40,869 INFO L85 PathProgramCache]: Analyzing trace with hash 149114, now seen corresponding path program 1 times [2025-02-17 22:49:40,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:49:40,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382422004] [2025-02-17 22:49:40,869 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:49:40,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:49:40,873 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:49:40,875 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:49:40,875 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:49:40,875 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:49:40,875 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:49:40,878 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:49:40,879 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:49:40,880 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:49:40,880 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:49:40,881 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:49:40,911 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:49:40,912 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:49:40,912 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:49:40,912 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:49:40,912 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-17 22:49:40,912 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:49:40,912 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:49:40,912 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:49:40,912 INFO L132 ssoRankerPreferences]: Filename of dumped script: indep_loops_minus1_6.c.bpl_petrified1_Iteration1_Loop [2025-02-17 22:49:40,912 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:49:40,912 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:49:40,921 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:49:40,994 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:49:40,994 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-17 22:49:40,996 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:49:40,996 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:49:40,999 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 22:49:41,001 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 22:49:41,006 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:49:41,006 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:49:41,047 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 [2025-02-17 22:49:41,049 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:49:41,050 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:49:41,053 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 22:49:41,057 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 22:49:41,059 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-17 22:49:41,060 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:49:41,186 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-17 22:49:41,195 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 22:49:41,195 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:49:41,195 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:49:41,195 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:49:41,195 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:49:41,195 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-17 22:49:41,196 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:49:41,196 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:49:41,196 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:49:41,196 INFO L132 ssoRankerPreferences]: Filename of dumped script: indep_loops_minus1_6.c.bpl_petrified1_Iteration1_Loop [2025-02-17 22:49:41,196 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:49:41,196 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:49:41,200 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:49:41,228 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:49:41,231 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-17 22:49:41,232 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:49:41,232 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:49:41,234 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 22:49:41,236 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 22:49:41,237 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 22:49:41,251 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:49:41,251 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-17 22:49:41,252 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:49:41,252 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:49:41,252 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:49:41,255 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-17 22:49:41,255 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-17 22:49:41,258 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-17 22:49:41,263 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2025-02-17 22:49:41,263 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-02-17 22:49:41,264 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:49:41,264 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:49:41,266 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 22:49:41,268 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 22:49:41,269 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-17 22:49:41,270 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-02-17 22:49:41,270 INFO L474 LassoAnalysis]: Proved termination. [2025-02-17 22:49:41,270 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(z, x1) = 1*z - 1*x1 Supporting invariants [] [2025-02-17 22:49:41,276 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 22:49:41,279 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-02-17 22:49:41,296 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:49:41,304 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-02-17 22:49:41,305 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-02-17 22:49:41,305 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:49:41,305 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:49:41,306 WARN L254 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-17 22:49:41,307 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:49:41,315 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:49:41,316 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:49:41,316 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:49:41,316 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:49:41,318 WARN L254 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-17 22:49:41,318 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:49:41,336 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 22:49:41,355 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 22:49:41,387 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 8435 states, 8434 states have (on average 5.387360682949964) internal successors, (45437), 8434 states have internal predecessors, (45437), 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) Second operand has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 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 22:49:41,940 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 22:49:42,033 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 8435 states, 8434 states have (on average 5.387360682949964) internal successors, (45437), 8434 states have internal predecessors, (45437), 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). Second operand has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 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 23605 states and 140363 transitions. Complement of second has 6 states. [2025-02-17 22:49:42,035 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 22:49:42,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 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 22:49:42,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 92 transitions. [2025-02-17 22:49:42,047 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 92 transitions. Stem has 1 letters. Loop has 2 letters. [2025-02-17 22:49:42,050 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:49:42,050 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 92 transitions. Stem has 3 letters. Loop has 2 letters. [2025-02-17 22:49:42,050 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:49:42,050 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 92 transitions. Stem has 1 letters. Loop has 4 letters. [2025-02-17 22:49:42,050 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:49:42,050 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23605 states and 140363 transitions. [2025-02-17 22:49:42,681 INFO L131 ngComponentsAnalysis]: Automaton has 1372 accepting balls. 7558 [2025-02-17 22:49:43,185 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23605 states to 17614 states and 107482 transitions. [2025-02-17 22:49:43,187 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7970 [2025-02-17 22:49:43,239 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12656 [2025-02-17 22:49:43,239 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17614 states and 107482 transitions. [2025-02-17 22:49:43,240 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-17 22:49:43,240 INFO L218 hiAutomatonCegarLoop]: Abstraction has 17614 states and 107482 transitions. [2025-02-17 22:49:43,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17614 states and 107482 transitions. [2025-02-17 22:49:43,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17614 to 12929. [2025-02-17 22:49:43,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12929 states, 12929 states have (on average 6.288421378296852) internal successors, (81303), 12928 states have internal predecessors, (81303), 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 22:49:44,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12929 states to 12929 states and 81303 transitions. [2025-02-17 22:49:44,003 INFO L240 hiAutomatonCegarLoop]: Abstraction has 12929 states and 81303 transitions. [2025-02-17 22:49:44,003 INFO L432 stractBuchiCegarLoop]: Abstraction has 12929 states and 81303 transitions. [2025-02-17 22:49:44,003 INFO L338 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2025-02-17 22:49:44,003 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12929 states and 81303 transitions. [2025-02-17 22:49:44,127 INFO L131 ngComponentsAnalysis]: Automaton has 1372 accepting balls. 7558 [2025-02-17 22:49:44,127 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-17 22:49:44,127 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-17 22:49:44,128 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2025-02-17 22:49:44,128 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-02-17 22:49:44,129 INFO L752 eck$LassoCheckResult]: Stem: "[121] $Ultimate##0-->L29: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" "[124] L12-->L38: Formula: (and (= 2 v_thread2Thread1of1ForFork1_thidvar1_2) (= 2 v_thread2Thread1of1ForFork1_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_2, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_thidvar0, thread2Thread1of1ForFork1_thidvar1]" [2025-02-17 22:49:44,129 INFO L754 eck$LassoCheckResult]: Loop: "[99] L38-->L40: 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[]" "[101] L40-->L38: Formula: (= v_x2_2 (+ v_x2_3 1)) InVars {x2=v_x2_3} OutVars{x2=v_x2_2} AuxVars[] AssignedVars[x2]" [2025-02-17 22:49:44,130 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:49:44,130 INFO L85 PathProgramCache]: Analyzing trace with hash 4836, now seen corresponding path program 1 times [2025-02-17 22:49:44,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:49:44,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81413364] [2025-02-17 22:49:44,130 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:49:44,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:49:44,136 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:49:44,137 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:49:44,137 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:49:44,137 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:49:44,137 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:49:44,140 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:49:44,140 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:49:44,140 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:49:44,140 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:49:44,141 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:49:44,142 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:49:44,142 INFO L85 PathProgramCache]: Analyzing trace with hash 4131, now seen corresponding path program 1 times [2025-02-17 22:49:44,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:49:44,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284761723] [2025-02-17 22:49:44,142 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:49:44,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:49:44,146 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:49:44,147 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:49:44,147 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:49:44,147 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:49:44,147 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:49:44,148 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:49:44,149 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:49:44,149 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:49:44,149 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:49:44,150 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:49:44,151 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:49:44,151 INFO L85 PathProgramCache]: Analyzing trace with hash 4650566, now seen corresponding path program 1 times [2025-02-17 22:49:44,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:49:44,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205940519] [2025-02-17 22:49:44,151 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:49:44,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:49:44,154 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-17 22:49:44,156 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-17 22:49:44,156 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:49:44,156 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:49:44,156 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:49:44,157 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-17 22:49:44,158 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-17 22:49:44,158 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:49:44,158 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:49:44,160 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:49:44,179 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:49:44,179 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:49:44,179 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:49:44,179 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:49:44,179 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-17 22:49:44,179 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:49:44,179 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:49:44,179 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:49:44,179 INFO L132 ssoRankerPreferences]: Filename of dumped script: indep_loops_minus1_6.c.bpl_petrified1_Iteration2_Loop [2025-02-17 22:49:44,179 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:49:44,179 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:49:44,180 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:49:44,198 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:49:44,198 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-17 22:49:44,198 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:49:44,198 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:49:44,200 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 22:49:44,202 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 22:49:44,204 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:49:44,204 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:49:44,220 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2025-02-17 22:49:44,221 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:49:44,221 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:49:44,225 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 22:49:44,226 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 22:49:44,228 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-17 22:49:44,228 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:49:44,299 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-17 22:49:44,303 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 22:49:44,303 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:49:44,304 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:49:44,304 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:49:44,304 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:49:44,304 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-17 22:49:44,304 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:49:44,304 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:49:44,304 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:49:44,304 INFO L132 ssoRankerPreferences]: Filename of dumped script: indep_loops_minus1_6.c.bpl_petrified1_Iteration2_Loop [2025-02-17 22:49:44,304 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:49:44,304 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:49:44,304 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:49:44,323 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:49:44,323 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-17 22:49:44,323 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:49:44,324 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:49:44,325 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 22:49:44,327 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 22:49:44,328 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-02-17 22:49:44,338 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:49:44,338 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-17 22:49:44,338 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:49:44,338 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:49:44,338 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:49:44,339 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-17 22:49:44,339 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-17 22:49:44,341 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-17 22:49:44,344 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2025-02-17 22:49:44,344 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-02-17 22:49:44,344 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:49:44,344 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:49:44,346 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 22:49:44,347 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 22:49:44,348 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-17 22:49:44,349 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-02-17 22:49:44,349 INFO L474 LassoAnalysis]: Proved termination. [2025-02-17 22:49:44,349 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(x2, z) = -1*x2 + 1*z Supporting invariants [] [2025-02-17 22:49:44,354 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2025-02-17 22:49:44,355 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-02-17 22:49:44,366 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:49:44,371 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:49:44,372 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:49:44,372 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:49:44,372 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:49:44,372 INFO L256 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-17 22:49:44,372 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:49:44,379 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:49:44,379 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:49:44,379 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:49:44,379 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:49:44,380 WARN L254 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-17 22:49:44,380 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:49:44,392 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 22:49:44,393 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 22:49:44,394 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12929 states and 81303 transitions. cyclomatic complexity: 70078 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 22:49:45,279 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2025-02-17 22:49:45,542 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12929 states and 81303 transitions. cyclomatic complexity: 70078. 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 39328 states and 256687 transitions. Complement of second has 6 states. [2025-02-17 22:49:45,542 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 22:49:45,543 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 22:49:45,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 94 transitions. [2025-02-17 22:49:45,543 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 94 transitions. Stem has 2 letters. Loop has 2 letters. [2025-02-17 22:49:45,543 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:49:45,543 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 94 transitions. Stem has 4 letters. Loop has 2 letters. [2025-02-17 22:49:45,543 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:49:45,543 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 94 transitions. Stem has 2 letters. Loop has 4 letters. [2025-02-17 22:49:45,543 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:49:45,543 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 39328 states and 256687 transitions. [2025-02-17 22:49:46,064 INFO L131 ngComponentsAnalysis]: Automaton has 1548 accepting balls. 6996 [2025-02-17 22:49:46,708 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 39328 states to 29784 states and 196415 transitions. [2025-02-17 22:49:46,708 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10581 [2025-02-17 22:49:46,759 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16049 [2025-02-17 22:49:46,760 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29784 states and 196415 transitions. [2025-02-17 22:49:46,760 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-17 22:49:46,760 INFO L218 hiAutomatonCegarLoop]: Abstraction has 29784 states and 196415 transitions. [2025-02-17 22:49:46,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29784 states and 196415 transitions. [2025-02-17 22:49:47,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29784 to 24316. [2025-02-17 22:49:47,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24316 states, 24316 states have (on average 6.871895048527718) internal successors, (167097), 24315 states have internal predecessors, (167097), 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 22:49:48,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24316 states to 24316 states and 167097 transitions. [2025-02-17 22:49:48,413 INFO L240 hiAutomatonCegarLoop]: Abstraction has 24316 states and 167097 transitions. [2025-02-17 22:49:48,413 INFO L432 stractBuchiCegarLoop]: Abstraction has 24316 states and 167097 transitions. [2025-02-17 22:49:48,413 INFO L338 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2025-02-17 22:49:48,413 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24316 states and 167097 transitions. [2025-02-17 22:49:48,589 INFO L131 ngComponentsAnalysis]: Automaton has 1548 accepting balls. 6996 [2025-02-17 22:49:48,589 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-17 22:49:48,589 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-17 22:49:48,590 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2025-02-17 22:49:48,590 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-02-17 22:49:48,591 INFO L752 eck$LassoCheckResult]: Stem: "[121] $Ultimate##0-->L29: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" "[124] L12-->L38: Formula: (and (= 2 v_thread2Thread1of1ForFork1_thidvar1_2) (= 2 v_thread2Thread1of1ForFork1_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_2, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_thidvar0, thread2Thread1of1ForFork1_thidvar1]" "[127] L13-->L47: Formula: (and (= 3 v_thread3Thread1of1ForFork2_thidvar0_2) (= 3 v_thread3Thread1of1ForFork2_thidvar1_2) (= 3 v_thread3Thread1of1ForFork2_thidvar2_2)) InVars {} OutVars{thread3Thread1of1ForFork2_thidvar2=v_thread3Thread1of1ForFork2_thidvar2_2, thread3Thread1of1ForFork2_thidvar1=v_thread3Thread1of1ForFork2_thidvar1_2, thread3Thread1of1ForFork2_thidvar0=v_thread3Thread1of1ForFork2_thidvar0_2} AuxVars[] AssignedVars[thread3Thread1of1ForFork2_thidvar2, thread3Thread1of1ForFork2_thidvar1, thread3Thread1of1ForFork2_thidvar0]" [2025-02-17 22:49:48,591 INFO L754 eck$LassoCheckResult]: Loop: "[103] L47-->L49: 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[]" "[105] L49-->L47: Formula: (= v_x3_2 (+ v_x3_3 1)) InVars {x3=v_x3_3} OutVars{x3=v_x3_2} AuxVars[] AssignedVars[x3]" [2025-02-17 22:49:48,591 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:49:48,591 INFO L85 PathProgramCache]: Analyzing trace with hash 150043, now seen corresponding path program 1 times [2025-02-17 22:49:48,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:49:48,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922244546] [2025-02-17 22:49:48,591 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:49:48,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:49:48,594 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:49:48,595 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:49:48,595 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:49:48,595 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:49:48,595 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:49:48,597 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:49:48,598 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:49:48,598 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:49:48,598 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:49:48,599 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:49:48,599 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:49:48,599 INFO L85 PathProgramCache]: Analyzing trace with hash 4259, now seen corresponding path program 1 times [2025-02-17 22:49:48,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:49:48,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055628567] [2025-02-17 22:49:48,600 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:49:48,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:49:48,604 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:49:48,604 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:49:48,605 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:49:48,605 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:49:48,605 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:49:48,605 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:49:48,606 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:49:48,606 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:49:48,606 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:49:48,607 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:49:48,607 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:49:48,607 INFO L85 PathProgramCache]: Analyzing trace with hash 144194621, now seen corresponding path program 1 times [2025-02-17 22:49:48,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:49:48,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902652439] [2025-02-17 22:49:48,607 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:49:48,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:49:48,608 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-17 22:49:48,610 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-17 22:49:48,610 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:49:48,610 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:49:48,610 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:49:48,611 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-17 22:49:48,612 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-17 22:49:48,612 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:49:48,612 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:49:48,613 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:49:48,625 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:49:48,625 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:49:48,625 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:49:48,625 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:49:48,625 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-17 22:49:48,625 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:49:48,625 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:49:48,625 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:49:48,625 INFO L132 ssoRankerPreferences]: Filename of dumped script: indep_loops_minus1_6.c.bpl_petrified1_Iteration3_Loop [2025-02-17 22:49:48,625 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:49:48,625 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:49:48,625 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:49:48,640 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:49:48,640 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-17 22:49:48,641 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:49:48,641 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:49:48,643 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 22:49:48,644 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 22:49:48,646 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:49:48,646 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:49:48,662 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2025-02-17 22:49:48,663 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:49:48,663 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:49:48,664 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 22:49:48,665 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 22:49:48,668 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-17 22:49:48,668 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:49:48,731 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-17 22:49:48,735 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2025-02-17 22:49:48,735 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:49:48,735 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:49:48,735 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:49:48,735 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:49:48,735 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-17 22:49:48,735 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:49:48,735 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:49:48,735 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:49:48,735 INFO L132 ssoRankerPreferences]: Filename of dumped script: indep_loops_minus1_6.c.bpl_petrified1_Iteration3_Loop [2025-02-17 22:49:48,735 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:49:48,735 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:49:48,736 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:49:48,758 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:49:48,759 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-17 22:49:48,759 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:49:48,759 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:49:48,762 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 22:49:48,765 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 22:49:48,766 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 22:49:48,776 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:49:48,776 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-17 22:49:48,777 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:49:48,777 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:49:48,777 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:49:48,778 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-17 22:49:48,778 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-17 22:49:48,780 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-17 22:49:48,782 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-02-17 22:49:48,782 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2025-02-17 22:49:48,782 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:49:48,782 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:49:48,784 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 22:49:48,786 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 22:49:48,787 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-17 22:49:48,787 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-02-17 22:49:48,787 INFO L474 LassoAnalysis]: Proved termination. [2025-02-17 22:49:48,787 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(x3, z) = -1*x3 + 1*z Supporting invariants [] [2025-02-17 22:49:48,796 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 22:49:48,796 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-02-17 22:49:48,809 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:49:48,813 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:49:48,815 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:49:48,815 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:49:48,815 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:49:48,815 INFO L256 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-17 22:49:48,817 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:49:48,823 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:49:48,824 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:49:48,824 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:49:48,824 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:49:48,824 WARN L254 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-17 22:49:48,825 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:49:48,836 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 22:49:48,837 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 22:49:48,837 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 24316 states and 167097 transitions. cyclomatic complexity: 145328 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 22:49:49,214 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 22:49:49,961 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 24316 states and 167097 transitions. cyclomatic complexity: 145328. 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 75476 states and 528780 transitions. Complement of second has 6 states. [2025-02-17 22:49:49,961 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 22:49:49,962 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 22:49:49,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 98 transitions. [2025-02-17 22:49:49,962 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 98 transitions. Stem has 3 letters. Loop has 2 letters. [2025-02-17 22:49:49,962 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:49:49,962 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 98 transitions. Stem has 5 letters. Loop has 2 letters. [2025-02-17 22:49:49,962 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:49:49,962 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 98 transitions. Stem has 3 letters. Loop has 4 letters. [2025-02-17 22:49:49,962 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:49:49,962 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 75476 states and 528780 transitions. [2025-02-17 22:49:51,760 INFO L131 ngComponentsAnalysis]: Automaton has 1689 accepting balls. 6335 [2025-02-17 22:49:52,684 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 75476 states to 54673 states and 386548 transitions. [2025-02-17 22:49:52,685 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15666 [2025-02-17 22:49:52,756 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20877 [2025-02-17 22:49:52,757 INFO L73 IsDeterministic]: Start isDeterministic. Operand 54673 states and 386548 transitions. [2025-02-17 22:49:52,757 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-17 22:49:52,757 INFO L218 hiAutomatonCegarLoop]: Abstraction has 54673 states and 386548 transitions. [2025-02-17 22:49:52,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54673 states and 386548 transitions. [2025-02-17 22:49:54,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54673 to 46586. [2025-02-17 22:49:54,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46586 states, 46586 states have (on average 7.303567595414932) internal successors, (340244), 46585 states have internal predecessors, (340244), 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 22:49:55,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46586 states to 46586 states and 340244 transitions. [2025-02-17 22:49:55,075 INFO L240 hiAutomatonCegarLoop]: Abstraction has 46586 states and 340244 transitions. [2025-02-17 22:49:55,075 INFO L432 stractBuchiCegarLoop]: Abstraction has 46586 states and 340244 transitions. [2025-02-17 22:49:55,075 INFO L338 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2025-02-17 22:49:55,075 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 46586 states and 340244 transitions. [2025-02-17 22:49:55,452 INFO L131 ngComponentsAnalysis]: Automaton has 1689 accepting balls. 6335 [2025-02-17 22:49:55,452 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-17 22:49:55,452 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-17 22:49:55,453 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2025-02-17 22:49:55,453 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-02-17 22:49:55,453 INFO L752 eck$LassoCheckResult]: Stem: "[121] $Ultimate##0-->L29: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" "[124] L12-->L38: Formula: (and (= 2 v_thread2Thread1of1ForFork1_thidvar1_2) (= 2 v_thread2Thread1of1ForFork1_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_2, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_thidvar0, thread2Thread1of1ForFork1_thidvar1]" "[127] L13-->L47: Formula: (and (= 3 v_thread3Thread1of1ForFork2_thidvar0_2) (= 3 v_thread3Thread1of1ForFork2_thidvar1_2) (= 3 v_thread3Thread1of1ForFork2_thidvar2_2)) InVars {} OutVars{thread3Thread1of1ForFork2_thidvar2=v_thread3Thread1of1ForFork2_thidvar2_2, thread3Thread1of1ForFork2_thidvar1=v_thread3Thread1of1ForFork2_thidvar1_2, thread3Thread1of1ForFork2_thidvar0=v_thread3Thread1of1ForFork2_thidvar0_2} AuxVars[] AssignedVars[thread3Thread1of1ForFork2_thidvar2, thread3Thread1of1ForFork2_thidvar1, thread3Thread1of1ForFork2_thidvar0]" "[130] L14-->L56: Formula: (and (= v_thread4Thread1of1ForFork3_thidvar2_2 4) (= v_thread4Thread1of1ForFork3_thidvar3_2 4) (= v_thread4Thread1of1ForFork3_thidvar0_2 4) (= v_thread4Thread1of1ForFork3_thidvar1_2 4)) InVars {} OutVars{thread4Thread1of1ForFork3_thidvar1=v_thread4Thread1of1ForFork3_thidvar1_2, thread4Thread1of1ForFork3_thidvar0=v_thread4Thread1of1ForFork3_thidvar0_2, thread4Thread1of1ForFork3_thidvar3=v_thread4Thread1of1ForFork3_thidvar3_2, thread4Thread1of1ForFork3_thidvar2=v_thread4Thread1of1ForFork3_thidvar2_2} AuxVars[] AssignedVars[thread4Thread1of1ForFork3_thidvar1, thread4Thread1of1ForFork3_thidvar0, thread4Thread1of1ForFork3_thidvar3, thread4Thread1of1ForFork3_thidvar2]" [2025-02-17 22:49:55,453 INFO L754 eck$LassoCheckResult]: Loop: "[107] L56-->L58: 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[]" "[109] L58-->L56: Formula: (= (+ v_x4_3 1) v_x4_2) InVars {x4=v_x4_3} OutVars{x4=v_x4_2} AuxVars[] AssignedVars[x4]" [2025-02-17 22:49:55,454 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:49:55,454 INFO L85 PathProgramCache]: Analyzing trace with hash 4651463, now seen corresponding path program 1 times [2025-02-17 22:49:55,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:49:55,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532967881] [2025-02-17 22:49:55,454 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:49:55,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:49:55,456 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-17 22:49:55,457 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-17 22:49:55,457 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:49:55,457 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:49:55,458 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:49:55,458 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-17 22:49:55,460 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-17 22:49:55,460 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:49:55,460 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:49:55,462 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:49:55,462 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:49:55,462 INFO L85 PathProgramCache]: Analyzing trace with hash 4387, now seen corresponding path program 1 times [2025-02-17 22:49:55,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:49:55,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533764340] [2025-02-17 22:49:55,462 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:49:55,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:49:55,466 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:49:55,468 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:49:55,468 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:49:55,468 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:49:55,468 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:49:55,468 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:49:55,469 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:49:55,469 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:49:55,469 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:49:55,471 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:49:55,472 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:49:55,472 INFO L85 PathProgramCache]: Analyzing trace with hash 175092073, now seen corresponding path program 1 times [2025-02-17 22:49:55,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:49:55,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562464221] [2025-02-17 22:49:55,472 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:49:55,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:49:55,473 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-17 22:49:55,479 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-17 22:49:55,479 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:49:55,479 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:49:55,480 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:49:55,480 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-17 22:49:55,482 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-17 22:49:55,482 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:49:55,482 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:49:55,487 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:49:55,501 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:49:55,501 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:49:55,501 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:49:55,501 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:49:55,501 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-17 22:49:55,501 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:49:55,501 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:49:55,501 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:49:55,501 INFO L132 ssoRankerPreferences]: Filename of dumped script: indep_loops_minus1_6.c.bpl_petrified1_Iteration4_Loop [2025-02-17 22:49:55,502 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:49:55,502 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:49:55,502 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:49:55,515 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:49:55,515 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-17 22:49:55,515 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:49:55,515 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:49:55,517 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 22:49:55,518 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 22:49:55,519 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:49:55,519 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:49:55,534 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 22:49:55,535 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:49:55,535 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:49:55,537 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 22:49:55,538 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 22:49:55,540 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-17 22:49:55,540 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:49:55,604 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-17 22:49:55,608 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2025-02-17 22:49:55,608 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:49:55,608 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:49:55,608 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:49:55,608 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:49:55,608 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-17 22:49:55,608 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:49:55,608 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:49:55,608 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:49:55,608 INFO L132 ssoRankerPreferences]: Filename of dumped script: indep_loops_minus1_6.c.bpl_petrified1_Iteration4_Loop [2025-02-17 22:49:55,608 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:49:55,608 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:49:55,609 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:49:55,624 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:49:55,624 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-17 22:49:55,624 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:49:55,624 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:49:55,626 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 22:49:55,628 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 22:49:55,629 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 22:49:55,639 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:49:55,639 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-17 22:49:55,639 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:49:55,639 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:49:55,639 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:49:55,641 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-17 22:49:55,641 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-17 22:49:55,642 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-17 22:49:55,646 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2025-02-17 22:49:55,647 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-02-17 22:49:55,647 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:49:55,647 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:49:55,649 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 22:49:55,650 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 22:49:55,651 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-17 22:49:55,651 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-02-17 22:49:55,651 INFO L474 LassoAnalysis]: Proved termination. [2025-02-17 22:49:55,651 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(z, x4) = 1*z - 1*x4 Supporting invariants [] [2025-02-17 22:49:55,656 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 22:49:55,657 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-02-17 22:49:55,667 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:49:55,671 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-17 22:49:55,675 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-17 22:49:55,675 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:49:55,675 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:49:55,675 INFO L256 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-17 22:49:55,675 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:49:55,683 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:49:55,684 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:49:55,684 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:49:55,684 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:49:55,684 WARN L254 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-17 22:49:55,685 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:49:55,695 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 22:49:55,697 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 22:49:55,697 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 46586 states and 340244 transitions. cyclomatic complexity: 297605 Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:49:55,902 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 22:49:58,299 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 46586 states and 340244 transitions. cyclomatic complexity: 297605. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 137607 states and 1013448 transitions. Complement of second has 6 states. [2025-02-17 22:49:58,299 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 22:49:58,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:49:58,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 102 transitions. [2025-02-17 22:49:58,300 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 102 transitions. Stem has 4 letters. Loop has 2 letters. [2025-02-17 22:49:58,300 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:49:58,300 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 102 transitions. Stem has 6 letters. Loop has 2 letters. [2025-02-17 22:49:58,300 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:49:58,300 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 102 transitions. Stem has 4 letters. Loop has 4 letters. [2025-02-17 22:49:58,300 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:49:58,300 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 137607 states and 1013448 transitions. [2025-02-17 22:50:01,637 INFO L131 ngComponentsAnalysis]: Automaton has 1679 accepting balls. 5371 [2025-02-17 22:50:03,538 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 137607 states to 93922 states and 695232 transitions. [2025-02-17 22:50:03,538 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 22754 [2025-02-17 22:50:03,620 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 27328 [2025-02-17 22:50:03,620 INFO L73 IsDeterministic]: Start isDeterministic. Operand 93922 states and 695232 transitions. [2025-02-17 22:50:03,620 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-17 22:50:03,620 INFO L218 hiAutomatonCegarLoop]: Abstraction has 93922 states and 695232 transitions. [2025-02-17 22:50:03,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93922 states and 695232 transitions. [2025-02-17 22:50:05,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93922 to 82547. [2025-02-17 22:50:06,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82547 states, 82547 states have (on average 7.589361212400209) internal successors, (626479), 82546 states have internal predecessors, (626479), 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 22:50:07,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82547 states to 82547 states and 626479 transitions. [2025-02-17 22:50:07,662 INFO L240 hiAutomatonCegarLoop]: Abstraction has 82547 states and 626479 transitions. [2025-02-17 22:50:07,662 INFO L432 stractBuchiCegarLoop]: Abstraction has 82547 states and 626479 transitions. [2025-02-17 22:50:07,662 INFO L338 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2025-02-17 22:50:07,662 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 82547 states and 626479 transitions. [2025-02-17 22:50:08,492 INFO L131 ngComponentsAnalysis]: Automaton has 1679 accepting balls. 5371 [2025-02-17 22:50:08,492 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-17 22:50:08,492 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-17 22:50:08,493 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2025-02-17 22:50:08,493 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-02-17 22:50:08,493 INFO L752 eck$LassoCheckResult]: Stem: "[121] $Ultimate##0-->L29: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" "[124] L12-->L38: 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]" "[127] L13-->L47: 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]" "[130] L14-->L56: Formula: (and (= v_thread4Thread1of1ForFork3_thidvar2_2 4) (= v_thread4Thread1of1ForFork3_thidvar3_2 4) (= v_thread4Thread1of1ForFork3_thidvar0_2 4) (= v_thread4Thread1of1ForFork3_thidvar1_2 4)) InVars {} OutVars{thread4Thread1of1ForFork3_thidvar1=v_thread4Thread1of1ForFork3_thidvar1_2, thread4Thread1of1ForFork3_thidvar0=v_thread4Thread1of1ForFork3_thidvar0_2, thread4Thread1of1ForFork3_thidvar3=v_thread4Thread1of1ForFork3_thidvar3_2, thread4Thread1of1ForFork3_thidvar2=v_thread4Thread1of1ForFork3_thidvar2_2} AuxVars[] AssignedVars[thread4Thread1of1ForFork3_thidvar1, thread4Thread1of1ForFork3_thidvar0, thread4Thread1of1ForFork3_thidvar3, thread4Thread1of1ForFork3_thidvar2]" "[133] L15-->L65: Formula: (and (= v_thread5Thread1of1ForFork4_thidvar4_2 5) (= v_thread5Thread1of1ForFork4_thidvar1_2 5) (= v_thread5Thread1of1ForFork4_thidvar0_2 5) (= v_thread5Thread1of1ForFork4_thidvar3_2 5) (= v_thread5Thread1of1ForFork4_thidvar2_2 5)) InVars {} OutVars{thread5Thread1of1ForFork4_thidvar0=v_thread5Thread1of1ForFork4_thidvar0_2, thread5Thread1of1ForFork4_thidvar1=v_thread5Thread1of1ForFork4_thidvar1_2, thread5Thread1of1ForFork4_thidvar2=v_thread5Thread1of1ForFork4_thidvar2_2, thread5Thread1of1ForFork4_thidvar3=v_thread5Thread1of1ForFork4_thidvar3_2, thread5Thread1of1ForFork4_thidvar4=v_thread5Thread1of1ForFork4_thidvar4_2} AuxVars[] AssignedVars[thread5Thread1of1ForFork4_thidvar0, thread5Thread1of1ForFork4_thidvar1, thread5Thread1of1ForFork4_thidvar2, thread5Thread1of1ForFork4_thidvar3, thread5Thread1of1ForFork4_thidvar4]" [2025-02-17 22:50:08,494 INFO L754 eck$LassoCheckResult]: Loop: "[111] L65-->L67: Formula: (< v_x5_1 v_z_9) InVars {x5=v_x5_1, z=v_z_9} OutVars{x5=v_x5_1, z=v_z_9} AuxVars[] AssignedVars[]" "[113] L67-->L68: Formula: (= v_x5_2 (+ v_x5_3 1)) InVars {x5=v_x5_3} OutVars{x5=v_x5_2} AuxVars[] AssignedVars[x5]" "[114] L68-->L65: Formula: (= v_x6_1 (+ v_x6_2 1)) InVars {x6=v_x6_2} OutVars{x6=v_x6_1} AuxVars[] AssignedVars[x6]" [2025-02-17 22:50:08,494 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:50:08,494 INFO L85 PathProgramCache]: Analyzing trace with hash 144195486, now seen corresponding path program 1 times [2025-02-17 22:50:08,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:50:08,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826064325] [2025-02-17 22:50:08,494 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:50:08,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:50:08,496 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-17 22:50:08,498 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-17 22:50:08,498 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:50:08,498 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:50:08,498 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:50:08,499 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-17 22:50:08,501 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-17 22:50:08,501 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:50:08,501 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:50:08,502 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:50:08,502 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:50:08,502 INFO L85 PathProgramCache]: Analyzing trace with hash 140079, now seen corresponding path program 1 times [2025-02-17 22:50:08,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:50:08,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430585997] [2025-02-17 22:50:08,502 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:50:08,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:50:08,503 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:50:08,504 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:50:08,504 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:50:08,504 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:50:08,504 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:50:08,505 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:50:08,506 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:50:08,506 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:50:08,506 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:50:08,506 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:50:08,507 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:50:08,507 INFO L85 PathProgramCache]: Analyzing trace with hash 760537714, now seen corresponding path program 1 times [2025-02-17 22:50:08,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:50:08,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082905299] [2025-02-17 22:50:08,507 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:50:08,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:50:08,508 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-02-17 22:50:08,511 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-02-17 22:50:08,511 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:50:08,511 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:50:08,511 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:50:08,512 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-02-17 22:50:08,520 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-02-17 22:50:08,520 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:50:08,521 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:50:08,522 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:50:08,540 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:50:08,540 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:50:08,540 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:50:08,540 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:50:08,540 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-17 22:50:08,540 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:50:08,540 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:50:08,540 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:50:08,540 INFO L132 ssoRankerPreferences]: Filename of dumped script: indep_loops_minus1_6.c.bpl_petrified1_Iteration5_Loop [2025-02-17 22:50:08,540 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:50:08,540 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:50:08,540 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:50:08,548 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:50:08,566 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:50:08,567 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-17 22:50:08,567 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:50:08,567 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:50:08,569 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 22:50:08,570 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 22:50:08,572 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:50:08,572 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:50:08,587 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2025-02-17 22:50:08,587 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:50:08,588 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:50:08,590 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 22:50:08,591 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 22:50:08,592 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-17 22:50:08,592 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:50:08,650 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-17 22:50:08,653 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2025-02-17 22:50:08,654 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:50:08,654 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:50:08,654 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:50:08,654 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:50:08,654 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-17 22:50:08,654 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:50:08,654 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:50:08,654 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:50:08,654 INFO L132 ssoRankerPreferences]: Filename of dumped script: indep_loops_minus1_6.c.bpl_petrified1_Iteration5_Loop [2025-02-17 22:50:08,654 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:50:08,654 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:50:08,655 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:50:08,659 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:50:08,687 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:50:08,687 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-17 22:50:08,687 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:50:08,688 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:50:08,691 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 22:50:08,692 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 22:50:08,693 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 22:50:08,702 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:50:08,702 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-17 22:50:08,702 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:50:08,702 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:50:08,702 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:50:08,703 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-17 22:50:08,703 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-17 22:50:08,705 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-17 22:50:08,707 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-02-17 22:50:08,708 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2025-02-17 22:50:08,708 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:50:08,708 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:50:08,710 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 22:50:08,711 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 22:50:08,712 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-17 22:50:08,712 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-02-17 22:50:08,712 INFO L474 LassoAnalysis]: Proved termination. [2025-02-17 22:50:08,712 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(z, x5) = 1*z - 1*x5 Supporting invariants [] [2025-02-17 22:50:08,717 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2025-02-17 22:50:08,718 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-02-17 22:50:08,731 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:50:08,736 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-17 22:50:08,740 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-17 22:50:08,740 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:50:08,740 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:50:08,740 INFO L256 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-17 22:50:08,741 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:50:08,748 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:50:08,749 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:50:08,749 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:50:08,749 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:50:08,749 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-17 22:50:08,749 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:50:08,774 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 22:50:08,775 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 22:50:08,775 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 82547 states and 626479 transitions. cyclomatic complexity: 549824 Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:50:09,001 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 22:50:13,022 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 82547 states and 626479 transitions. cyclomatic complexity: 549824. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 223613 states and 1692769 transitions. Complement of second has 6 states. [2025-02-17 22:50:13,022 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 22:50:13,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:50:13,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 105 transitions. [2025-02-17 22:50:13,023 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 105 transitions. Stem has 5 letters. Loop has 3 letters. [2025-02-17 22:50:13,023 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:50:13,023 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 105 transitions. Stem has 8 letters. Loop has 3 letters. [2025-02-17 22:50:13,023 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:50:13,023 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 105 transitions. Stem has 5 letters. Loop has 6 letters. [2025-02-17 22:50:13,023 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:50:13,023 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 223613 states and 1692769 transitions. [2025-02-17 22:50:18,735 INFO L131 ngComponentsAnalysis]: Automaton has 1464 accepting balls. 2928 [2025-02-17 22:50:21,439 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 223613 states to 124354 states and 947881 transitions. [2025-02-17 22:50:21,439 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 27169 [2025-02-17 22:50:21,533 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 29276 [2025-02-17 22:50:21,533 INFO L73 IsDeterministic]: Start isDeterministic. Operand 124354 states and 947881 transitions. [2025-02-17 22:50:21,533 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-17 22:50:21,533 INFO L218 hiAutomatonCegarLoop]: Abstraction has 124354 states and 947881 transitions. [2025-02-17 22:50:21,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124354 states and 947881 transitions. [2025-02-17 22:50:24,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124354 to 116038. [2025-02-17 22:50:25,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116038 states, 116038 states have (on average 7.6926437891035695) internal successors, (892639), 116037 states have internal predecessors, (892639), 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 22:50:26,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116038 states to 116038 states and 892639 transitions. [2025-02-17 22:50:26,853 INFO L240 hiAutomatonCegarLoop]: Abstraction has 116038 states and 892639 transitions. [2025-02-17 22:50:26,853 INFO L432 stractBuchiCegarLoop]: Abstraction has 116038 states and 892639 transitions. [2025-02-17 22:50:26,853 INFO L338 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2025-02-17 22:50:26,853 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 116038 states and 892639 transitions. [2025-02-17 22:50:28,178 INFO L131 ngComponentsAnalysis]: Automaton has 1464 accepting balls. 2928 [2025-02-17 22:50:28,179 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-17 22:50:28,179 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-17 22:50:28,180 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2025-02-17 22:50:28,180 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-02-17 22:50:28,180 INFO L752 eck$LassoCheckResult]: Stem: "[121] $Ultimate##0-->L29: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" "[124] L12-->L38: 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]" "[127] L13-->L47: 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]" "[130] L14-->L56: Formula: (and (= v_thread4Thread1of1ForFork3_thidvar2_2 4) (= v_thread4Thread1of1ForFork3_thidvar3_2 4) (= v_thread4Thread1of1ForFork3_thidvar0_2 4) (= v_thread4Thread1of1ForFork3_thidvar1_2 4)) InVars {} OutVars{thread4Thread1of1ForFork3_thidvar1=v_thread4Thread1of1ForFork3_thidvar1_2, thread4Thread1of1ForFork3_thidvar0=v_thread4Thread1of1ForFork3_thidvar0_2, thread4Thread1of1ForFork3_thidvar3=v_thread4Thread1of1ForFork3_thidvar3_2, thread4Thread1of1ForFork3_thidvar2=v_thread4Thread1of1ForFork3_thidvar2_2} AuxVars[] AssignedVars[thread4Thread1of1ForFork3_thidvar1, thread4Thread1of1ForFork3_thidvar0, thread4Thread1of1ForFork3_thidvar3, thread4Thread1of1ForFork3_thidvar2]" "[133] L15-->L65: Formula: (and (= v_thread5Thread1of1ForFork4_thidvar4_2 5) (= v_thread5Thread1of1ForFork4_thidvar1_2 5) (= v_thread5Thread1of1ForFork4_thidvar0_2 5) (= v_thread5Thread1of1ForFork4_thidvar3_2 5) (= v_thread5Thread1of1ForFork4_thidvar2_2 5)) InVars {} OutVars{thread5Thread1of1ForFork4_thidvar0=v_thread5Thread1of1ForFork4_thidvar0_2, thread5Thread1of1ForFork4_thidvar1=v_thread5Thread1of1ForFork4_thidvar1_2, thread5Thread1of1ForFork4_thidvar2=v_thread5Thread1of1ForFork4_thidvar2_2, thread5Thread1of1ForFork4_thidvar3=v_thread5Thread1of1ForFork4_thidvar3_2, thread5Thread1of1ForFork4_thidvar4=v_thread5Thread1of1ForFork4_thidvar4_2} AuxVars[] AssignedVars[thread5Thread1of1ForFork4_thidvar0, thread5Thread1of1ForFork4_thidvar1, thread5Thread1of1ForFork4_thidvar2, thread5Thread1of1ForFork4_thidvar3, thread5Thread1of1ForFork4_thidvar4]" "[136] L16-->L75: Formula: (and (= v_thread6Thread1of1ForFork5_thidvar3_2 6) (= v_thread6Thread1of1ForFork5_thidvar5_2 6) (= v_thread6Thread1of1ForFork5_thidvar4_2 6) (= v_thread6Thread1of1ForFork5_thidvar2_2 6) (= v_thread6Thread1of1ForFork5_thidvar0_2 6) (= v_thread6Thread1of1ForFork5_thidvar1_2 6)) InVars {} OutVars{thread6Thread1of1ForFork5_thidvar0=v_thread6Thread1of1ForFork5_thidvar0_2, thread6Thread1of1ForFork5_thidvar1=v_thread6Thread1of1ForFork5_thidvar1_2, thread6Thread1of1ForFork5_thidvar2=v_thread6Thread1of1ForFork5_thidvar2_2, thread6Thread1of1ForFork5_thidvar3=v_thread6Thread1of1ForFork5_thidvar3_2, thread6Thread1of1ForFork5_thidvar4=v_thread6Thread1of1ForFork5_thidvar4_2, thread6Thread1of1ForFork5_thidvar5=v_thread6Thread1of1ForFork5_thidvar5_2} AuxVars[] AssignedVars[thread6Thread1of1ForFork5_thidvar0, thread6Thread1of1ForFork5_thidvar1, thread6Thread1of1ForFork5_thidvar2, thread6Thread1of1ForFork5_thidvar3, thread6Thread1of1ForFork5_thidvar4, thread6Thread1of1ForFork5_thidvar5]" [2025-02-17 22:50:28,181 INFO L754 eck$LassoCheckResult]: Loop: "[116] L75-->L77: Formula: (< v_x6_3 v_z_11) InVars {x6=v_x6_3, z=v_z_11} OutVars{x6=v_x6_3, z=v_z_11} AuxVars[] AssignedVars[]" "[118] L77-->L75: Formula: (= v_x6_4 (+ v_x6_5 1)) InVars {x6=v_x6_5} OutVars{x6=v_x6_4} AuxVars[] AssignedVars[x6]" [2025-02-17 22:50:28,181 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:50:28,181 INFO L85 PathProgramCache]: Analyzing trace with hash 175092906, now seen corresponding path program 1 times [2025-02-17 22:50:28,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:50:28,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537575640] [2025-02-17 22:50:28,182 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:50:28,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:50:28,184 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-17 22:50:28,186 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-17 22:50:28,187 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:50:28,187 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:50:28,187 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:50:28,188 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-17 22:50:28,189 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-17 22:50:28,189 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:50:28,189 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:50:28,191 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:50:28,191 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:50:28,191 INFO L85 PathProgramCache]: Analyzing trace with hash 4675, now seen corresponding path program 1 times [2025-02-17 22:50:28,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:50:28,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689821671] [2025-02-17 22:50:28,191 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:50:28,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:50:28,193 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:50:28,194 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:50:28,194 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:50:28,194 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:50:28,194 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:50:28,194 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:50:28,196 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:50:28,197 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:50:28,197 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:50:28,197 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:50:28,198 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:50:28,198 INFO L85 PathProgramCache]: Analyzing trace with hash 760561836, now seen corresponding path program 1 times [2025-02-17 22:50:28,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:50:28,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568370434] [2025-02-17 22:50:28,198 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:50:28,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:50:28,200 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-02-17 22:50:28,205 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-02-17 22:50:28,205 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:50:28,205 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:50:28,205 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:50:28,206 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-02-17 22:50:28,214 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-02-17 22:50:28,214 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:50:28,214 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:50:28,216 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:50:28,230 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:50:28,230 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:50:28,230 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:50:28,230 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:50:28,230 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-17 22:50:28,230 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:50:28,230 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:50:28,230 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:50:28,231 INFO L132 ssoRankerPreferences]: Filename of dumped script: indep_loops_minus1_6.c.bpl_petrified1_Iteration6_Loop [2025-02-17 22:50:28,231 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:50:28,231 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:50:28,231 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:50:28,246 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:50:28,246 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-17 22:50:28,247 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:50:28,247 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:50:28,249 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 22:50:28,251 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 22:50:28,254 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:50:28,254 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:50:28,271 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2025-02-17 22:50:28,271 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:50:28,272 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:50:28,274 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 22:50:28,275 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 22:50:28,278 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-17 22:50:28,278 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:50:28,338 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-17 22:50:28,342 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 22:50:28,342 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:50:28,342 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:50:28,342 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:50:28,342 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:50:28,342 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-17 22:50:28,342 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:50:28,342 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:50:28,342 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:50:28,342 INFO L132 ssoRankerPreferences]: Filename of dumped script: indep_loops_minus1_6.c.bpl_petrified1_Iteration6_Loop [2025-02-17 22:50:28,342 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:50:28,342 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:50:28,343 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:50:28,355 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:50:28,355 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-17 22:50:28,355 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:50:28,355 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:50:28,357 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:50:28,357 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2025-02-17 22:50:28,358 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 22:50:28,368 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:50:28,369 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-17 22:50:28,369 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:50:28,369 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:50:28,369 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:50:28,372 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-17 22:50:28,372 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-17 22:50:28,374 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-17 22:50:28,377 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2025-02-17 22:50:28,377 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-02-17 22:50:28,377 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:50:28,377 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:50:28,379 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:50:28,381 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2025-02-17 22:50:28,382 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-17 22:50:28,382 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-02-17 22:50:28,382 INFO L474 LassoAnalysis]: Proved termination. [2025-02-17 22:50:28,382 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(z, x6) = 1*z - 1*x6 Supporting invariants [] [2025-02-17 22:50:28,387 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2025-02-17 22:50:28,388 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-02-17 22:50:28,403 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:50:28,410 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-17 22:50:28,415 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-17 22:50:28,415 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:50:28,415 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:50:28,415 INFO L256 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-17 22:50:28,415 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:50:28,426 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:50:28,427 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:50:28,427 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:50:28,427 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:50:28,427 WARN L254 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-17 22:50:28,428 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:50:28,440 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 22:50:28,440 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2025-02-17 22:50:28,440 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 116038 states and 892639 transitions. cyclomatic complexity: 785039 Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:50:29,052 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2025-02-17 22:50:34,968 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 116038 states and 892639 transitions. cyclomatic complexity: 785039. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 380014 states and 2893546 transitions. Complement of second has 6 states. [2025-02-17 22:50:34,969 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 22:50:34,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:50:34,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 109 transitions. [2025-02-17 22:50:34,969 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 109 transitions. Stem has 6 letters. Loop has 2 letters. [2025-02-17 22:50:34,969 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:50:34,970 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 109 transitions. Stem has 8 letters. Loop has 2 letters. [2025-02-17 22:50:34,970 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:50:34,970 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 109 transitions. Stem has 6 letters. Loop has 4 letters. [2025-02-17 22:50:34,970 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:50:34,970 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 380014 states and 2893546 transitions.