/root/.sdkman/candidates/java/21.0.5-tem/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/buchiAutomizer/concurrent-automaton-noLbe.epf -tc ../../../trunk/examples/toolchains/BuchiAutomizerBplInline.xml -i /storage/cav23-termute-examples/4_plus_thr/indep_loops_minus1_5.c.bpl -------------------------------------------------------------------------------- This is Ultimate 0.3.0-wip.dk.ample-buchi-601be74-m [2025-02-17 22:46:23,704 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-17 22:46:23,765 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/settings/buchiAutomizer/concurrent-automaton-noLbe.epf [2025-02-17 22:46:23,768 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-17 22:46:23,768 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-17 22:46:23,791 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-17 22:46:23,792 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-17 22:46:23,792 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-17 22:46:23,792 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-17 22:46:23,792 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-17 22:46:23,792 INFO L153 SettingsManager]: * Use SBE=true [2025-02-17 22:46:23,793 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2025-02-17 22:46:23,793 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2025-02-17 22:46:23,794 INFO L153 SettingsManager]: * Use old map elimination=false [2025-02-17 22:46:23,794 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2025-02-17 22:46:23,794 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2025-02-17 22:46:23,794 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2025-02-17 22:46:23,794 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-17 22:46:23,795 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2025-02-17 22:46:23,795 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-17 22:46:23,795 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-17 22:46:23,795 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-17 22:46:23,795 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-17 22:46:23,795 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2025-02-17 22:46:23,795 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2025-02-17 22:46:23,795 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2025-02-17 22:46:23,795 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-17 22:46:23,795 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-17 22:46:23,795 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-17 22:46:23,795 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2025-02-17 22:46:23,795 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-17 22:46:23,795 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-02-17 22:46:23,796 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-17 22:46:23,796 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-17 22:46:23,796 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-17 22:46:23,796 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2025-02-17 22:46:23,796 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR [2025-02-17 22:46:24,020 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-17 22:46:24,026 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-17 22:46:24,029 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-17 22:46:24,029 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2025-02-17 22:46:24,030 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2025-02-17 22:46:24,032 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/cav23-termute-examples/4_plus_thr/indep_loops_minus1_5.c.bpl [2025-02-17 22:46:24,032 INFO L110 BoogieParser]: Parsing: '/storage/cav23-termute-examples/4_plus_thr/indep_loops_minus1_5.c.bpl' [2025-02-17 22:46:24,045 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-17 22:46:24,046 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2025-02-17 22:46:24,046 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-17 22:46:24,046 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-17 22:46:24,046 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-17 22:46:24,053 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "indep_loops_minus1_5.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:46:24" (1/1) ... [2025-02-17 22:46:24,057 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "indep_loops_minus1_5.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:46:24" (1/1) ... [2025-02-17 22:46:24,061 INFO L138 Inliner]: procedures = 6, calls = 5, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2025-02-17 22:46:24,063 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-17 22:46:24,064 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-17 22:46:24,064 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-17 22:46:24,064 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-17 22:46:24,068 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "indep_loops_minus1_5.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:46:24" (1/1) ... [2025-02-17 22:46:24,068 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "indep_loops_minus1_5.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:46:24" (1/1) ... [2025-02-17 22:46:24,069 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "indep_loops_minus1_5.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:46:24" (1/1) ... [2025-02-17 22:46:24,069 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "indep_loops_minus1_5.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:46:24" (1/1) ... [2025-02-17 22:46:24,072 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "indep_loops_minus1_5.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:46:24" (1/1) ... [2025-02-17 22:46:24,072 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "indep_loops_minus1_5.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:46:24" (1/1) ... [2025-02-17 22:46:24,075 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "indep_loops_minus1_5.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:46:24" (1/1) ... [2025-02-17 22:46:24,076 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "indep_loops_minus1_5.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:46:24" (1/1) ... [2025-02-17 22:46:24,076 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "indep_loops_minus1_5.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:46:24" (1/1) ... [2025-02-17 22:46:24,077 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-17 22:46:24,077 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-02-17 22:46:24,078 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-02-17 22:46:24,078 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-02-17 22:46:24,078 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "indep_loops_minus1_5.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:46:24" (1/1) ... [2025-02-17 22:46:24,085 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:46:24,092 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:46:24,104 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 22:46:24,105 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 22:46:24,127 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2025-02-17 22:46:24,127 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-02-17 22:46:24,127 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-02-17 22:46:24,127 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2025-02-17 22:46:24,127 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-02-17 22:46:24,127 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-02-17 22:46:24,128 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2025-02-17 22:46:24,128 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-02-17 22:46:24,128 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-02-17 22:46:24,128 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2025-02-17 22:46:24,128 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-17 22:46:24,128 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-17 22:46:24,128 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2025-02-17 22:46:24,128 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2025-02-17 22:46:24,128 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2025-02-17 22:46:24,128 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread5 given in one single declaration [2025-02-17 22:46:24,128 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2025-02-17 22:46:24,128 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2025-02-17 22:46:24,129 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 22:46:24,159 INFO L234 CfgBuilder]: Building ICFG [2025-02-17 22:46:24,160 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-17 22:46:24,231 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-17 22:46:24,232 INFO L283 CfgBuilder]: Performing block encoding [2025-02-17 22:46:24,242 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-17 22:46:24,242 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-17 22:46:24,243 INFO L201 PluginConnector]: Adding new model indep_loops_minus1_5.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.02 10:46:24 BoogieIcfgContainer [2025-02-17 22:46:24,243 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-02-17 22:46:24,244 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2025-02-17 22:46:24,244 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2025-02-17 22:46:24,248 INFO L274 PluginConnector]: BuchiAutomizer initialized [2025-02-17 22:46:24,248 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-02-17 22:46:24,248 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "indep_loops_minus1_5.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:46:24" (1/2) ... [2025-02-17 22:46:24,249 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@785fd2a and model type indep_loops_minus1_5.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.02 10:46:24, skipping insertion in model container [2025-02-17 22:46:24,249 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-02-17 22:46:24,249 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "indep_loops_minus1_5.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.02 10:46:24" (2/2) ... [2025-02-17 22:46:24,250 INFO L363 chiAutomizerObserver]: Analyzing ICFG indep_loops_minus1_5.c.bpl [2025-02-17 22:46:24,335 INFO L143 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2025-02-17 22:46:24,371 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 48 places, 42 transitions, 119 flow [2025-02-17 22:46:24,390 INFO L124 PetriNetUnfolderBase]: 5/32 cut-off events. [2025-02-17 22:46:24,392 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2025-02-17 22:46:24,395 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53 conditions, 32 events. 5/32 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 63 event pairs, 0 based on Foata normal form. 0/27 useless extension candidates. Maximal degree in co-relation 33. Up to 2 conditions per place. [2025-02-17 22:46:24,396 INFO L82 GeneralOperation]: Start removeDead. Operand has 48 places, 42 transitions, 119 flow [2025-02-17 22:46:24,399 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 43 places, 32 transitions, 94 flow [2025-02-17 22:46:24,408 INFO L306 stractBuchiCegarLoop]: Interprodecural is true [2025-02-17 22:46:24,408 INFO L307 stractBuchiCegarLoop]: Hoare is None [2025-02-17 22:46:24,408 INFO L308 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2025-02-17 22:46:24,408 INFO L309 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2025-02-17 22:46:24,408 INFO L310 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2025-02-17 22:46:24,408 INFO L311 stractBuchiCegarLoop]: Difference is false [2025-02-17 22:46:24,409 INFO L312 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2025-02-17 22:46:24,409 INFO L316 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2025-02-17 22:46:24,410 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 0 states, but on-demand construction may add more states [2025-02-17 22:46:24,704 INFO L131 ngComponentsAnalysis]: Automaton has 391 accepting balls. 2016 [2025-02-17 22:46:24,704 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-17 22:46:24,705 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-17 22:46:24,709 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1] [2025-02-17 22:46:24,709 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-02-17 22:46:24,709 INFO L338 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2025-02-17 22:46:24,709 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 2110 states, but on-demand construction may add more states [2025-02-17 22:46:24,776 INFO L131 ngComponentsAnalysis]: Automaton has 391 accepting balls. 2016 [2025-02-17 22:46:24,776 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-17 22:46:24,776 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-17 22:46:24,777 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1] [2025-02-17 22:46:24,777 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-02-17 22:46:24,781 INFO L752 eck$LassoCheckResult]: Stem: "[102] $Ultimate##0-->L27: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" [2025-02-17 22:46:24,781 INFO L754 eck$LassoCheckResult]: Loop: "[80] L27-->L29: 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[]" "[82] L29-->L27: Formula: (= v_x1_2 (+ v_x1_3 1)) InVars {x1=v_x1_3} OutVars{x1=v_x1_2} AuxVars[] AssignedVars[x1]" [2025-02-17 22:46:24,784 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:46:24,785 INFO L85 PathProgramCache]: Analyzing trace with hash 133, now seen corresponding path program 1 times [2025-02-17 22:46:24,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:46:24,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314439763] [2025-02-17 22:46:24,792 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:46:24,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:46:24,837 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-02-17 22:46:24,842 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-02-17 22:46:24,842 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:46:24,842 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:46:24,842 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:46:24,844 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-02-17 22:46:24,845 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-02-17 22:46:24,845 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:46:24,845 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:46:24,855 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:46:24,857 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:46:24,857 INFO L85 PathProgramCache]: Analyzing trace with hash 3523, now seen corresponding path program 1 times [2025-02-17 22:46:24,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:46:24,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695895047] [2025-02-17 22:46:24,857 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:46:24,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:46:24,860 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:46:24,863 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:46:24,863 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:46:24,863 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:46:24,863 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:46:24,864 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:46:24,865 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:46:24,865 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:46:24,865 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:46:24,867 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:46:24,868 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:46:24,868 INFO L85 PathProgramCache]: Analyzing trace with hash 130375, now seen corresponding path program 1 times [2025-02-17 22:46:24,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:46:24,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016519548] [2025-02-17 22:46:24,868 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:46:24,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:46:24,871 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:46:24,872 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:46:24,872 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:46:24,872 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:46:24,872 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:46:24,876 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:46:24,877 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:46:24,877 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:46:24,877 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:46:24,881 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:46:24,926 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:46:24,926 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:46:24,926 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:46:24,926 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:46:24,927 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-17 22:46:24,927 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:46:24,927 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:46:24,927 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:46:24,927 INFO L132 ssoRankerPreferences]: Filename of dumped script: indep_loops_minus1_5.c.bpl_petrified1_Iteration1_Loop [2025-02-17 22:46:24,927 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:46:24,927 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:46:24,939 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:46:24,980 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:46:24,980 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-17 22:46:24,981 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:46:24,981 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:46:24,983 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 22:46:24,985 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 22:46:24,986 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:46:24,987 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:46:25,006 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 22:46:25,007 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:46:25,007 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:46:25,009 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 22:46:25,009 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 22:46:25,011 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-17 22:46:25,011 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:46:25,078 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-17 22:46:25,082 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2025-02-17 22:46:25,083 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:46:25,083 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:46:25,083 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:46:25,083 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:46:25,083 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-17 22:46:25,083 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:46:25,083 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:46:25,083 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:46:25,083 INFO L132 ssoRankerPreferences]: Filename of dumped script: indep_loops_minus1_5.c.bpl_petrified1_Iteration1_Loop [2025-02-17 22:46:25,083 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:46:25,083 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:46:25,084 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:46:25,108 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:46:25,120 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-17 22:46:25,121 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:46:25,121 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:46:25,123 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 22:46:25,125 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 22:46:25,126 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 22:46:25,137 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:46:25,137 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-17 22:46:25,137 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:46:25,138 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:46:25,138 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:46:25,141 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-17 22:46:25,141 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-17 22:46:25,143 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-17 22:46:25,149 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2025-02-17 22:46:25,149 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-02-17 22:46:25,151 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:46:25,151 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:46:25,153 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 22:46:25,156 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 22:46:25,157 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-17 22:46:25,157 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-02-17 22:46:25,157 INFO L474 LassoAnalysis]: Proved termination. [2025-02-17 22:46:25,158 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(x1, z) = -1*x1 + 1*z Supporting invariants [] [2025-02-17 22:46:25,164 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 22:46:25,172 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-02-17 22:46:25,194 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2025-02-17 22:46:25,218 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:46:25,233 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-02-17 22:46:25,234 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-02-17 22:46:25,234 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:46:25,234 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:46:25,239 WARN L254 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-17 22:46:25,240 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:46:25,267 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:46:25,268 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:46:25,268 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:46:25,268 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:46:25,269 WARN L254 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-17 22:46:25,269 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:46:25,300 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 22:46:25,325 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 22:46:25,329 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand currently 2110 states, but on-demand construction may add more states 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 22:46:25,629 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand currently 2110 states, but on-demand construction may add more states. 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 5901 states and 31410 transitions. Complement of second has 6 states. [2025-02-17 22:46:25,632 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 22:46:25,635 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 22:46:25,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 76 transitions. [2025-02-17 22:46:25,643 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 76 transitions. Stem has 1 letters. Loop has 2 letters. [2025-02-17 22:46:25,644 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:46:25,644 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 76 transitions. Stem has 3 letters. Loop has 2 letters. [2025-02-17 22:46:25,644 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:46:25,644 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 76 transitions. Stem has 1 letters. Loop has 4 letters. [2025-02-17 22:46:25,644 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:46:25,647 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 5901 states and 31410 transitions. [2025-02-17 22:46:25,798 INFO L131 ngComponentsAnalysis]: Automaton has 450 accepting balls. 1954 [2025-02-17 22:46:25,930 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 5901 states to 4441 states and 23833 transitions. [2025-02-17 22:46:25,931 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 2013 [2025-02-17 22:46:25,949 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 3227 [2025-02-17 22:46:25,949 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4441 states and 23833 transitions. [2025-02-17 22:46:25,950 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-17 22:46:25,950 INFO L218 hiAutomatonCegarLoop]: Abstraction has 4441 states and 23833 transitions. [2025-02-17 22:46:25,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4441 states and 23833 transitions. [2025-02-17 22:46:26,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4441 to 3229. [2025-02-17 22:46:26,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3229 states, 3229 states have (on average 5.526478786001858) internal successors, (17845), 3228 states have internal predecessors, (17845), 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 22:46:26,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3229 states to 3229 states and 17845 transitions. [2025-02-17 22:46:26,153 INFO L240 hiAutomatonCegarLoop]: Abstraction has 3229 states and 17845 transitions. [2025-02-17 22:46:26,153 INFO L432 stractBuchiCegarLoop]: Abstraction has 3229 states and 17845 transitions. [2025-02-17 22:46:26,153 INFO L338 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2025-02-17 22:46:26,154 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3229 states and 17845 transitions. [2025-02-17 22:46:26,184 INFO L131 ngComponentsAnalysis]: Automaton has 450 accepting balls. 1954 [2025-02-17 22:46:26,184 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-17 22:46:26,184 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-17 22:46:26,185 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2025-02-17 22:46:26,185 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-02-17 22:46:26,185 INFO L752 eck$LassoCheckResult]: Stem: "[102] $Ultimate##0-->L27: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" "[105] L12-->L36: Formula: (and (= 2 v_thread2Thread1of1ForFork1_thidvar1_2) (= 2 v_thread2Thread1of1ForFork1_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_2, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_thidvar0, thread2Thread1of1ForFork1_thidvar1]" [2025-02-17 22:46:26,185 INFO L754 eck$LassoCheckResult]: Loop: "[84] L36-->L38: 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[]" "[86] L38-->L36: Formula: (= v_x2_2 (+ v_x2_3 1)) InVars {x2=v_x2_3} OutVars{x2=v_x2_2} AuxVars[] AssignedVars[x2]" [2025-02-17 22:46:26,187 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:46:26,187 INFO L85 PathProgramCache]: Analyzing trace with hash 4228, now seen corresponding path program 1 times [2025-02-17 22:46:26,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:46:26,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162661163] [2025-02-17 22:46:26,187 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:46:26,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:46:26,191 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:46:26,192 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:46:26,192 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:46:26,192 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:46:26,192 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:46:26,192 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:46:26,193 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:46:26,193 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:46:26,193 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:46:26,198 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:46:26,198 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:46:26,199 INFO L85 PathProgramCache]: Analyzing trace with hash 3651, now seen corresponding path program 1 times [2025-02-17 22:46:26,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:46:26,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044077815] [2025-02-17 22:46:26,199 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:46:26,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:46:26,202 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:46:26,204 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:46:26,204 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:46:26,204 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:46:26,204 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:46:26,206 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:46:26,207 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:46:26,207 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:46:26,207 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:46:26,208 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:46:26,208 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:46:26,209 INFO L85 PathProgramCache]: Analyzing trace with hash 4065798, now seen corresponding path program 1 times [2025-02-17 22:46:26,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:46:26,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954626046] [2025-02-17 22:46:26,209 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:46:26,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:46:26,214 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-17 22:46:26,215 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-17 22:46:26,215 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:46:26,215 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:46:26,216 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:46:26,216 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-17 22:46:26,219 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-17 22:46:26,219 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:46:26,219 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:46:26,220 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:46:26,236 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:46:26,236 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:46:26,236 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:46:26,236 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:46:26,236 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-17 22:46:26,236 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:46:26,236 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:46:26,236 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:46:26,236 INFO L132 ssoRankerPreferences]: Filename of dumped script: indep_loops_minus1_5.c.bpl_petrified1_Iteration2_Loop [2025-02-17 22:46:26,236 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:46:26,236 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:46:26,237 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:46:26,261 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:46:26,262 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-17 22:46:26,262 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:46:26,262 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:46:26,266 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 22:46:26,267 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 22:46:26,268 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:46:26,268 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:46:26,288 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2025-02-17 22:46:26,288 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:46:26,288 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:46:26,291 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 22:46:26,292 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 22:46:26,293 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-17 22:46:26,293 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:46:26,362 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-17 22:46:26,366 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2025-02-17 22:46:26,367 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:46:26,367 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:46:26,367 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:46:26,367 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:46:26,367 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-17 22:46:26,367 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:46:26,367 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:46:26,367 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:46:26,367 INFO L132 ssoRankerPreferences]: Filename of dumped script: indep_loops_minus1_5.c.bpl_petrified1_Iteration2_Loop [2025-02-17 22:46:26,367 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:46:26,367 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:46:26,368 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:46:26,386 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:46:26,386 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-17 22:46:26,386 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:46:26,386 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:46:26,389 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 22:46:26,390 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 22:46:26,391 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 22:46:26,402 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:46:26,402 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-17 22:46:26,403 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:46:26,403 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:46:26,403 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:46:26,404 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-17 22:46:26,404 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-17 22:46:26,407 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-17 22:46:26,412 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2025-02-17 22:46:26,412 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-02-17 22:46:26,413 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:46:26,413 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:46:26,420 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 22:46:26,428 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 22:46:26,430 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-17 22:46:26,430 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-02-17 22:46:26,430 INFO L474 LassoAnalysis]: Proved termination. [2025-02-17 22:46:26,430 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(z, x2) = 1*z - 1*x2 Supporting invariants [] [2025-02-17 22:46:26,442 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2025-02-17 22:46:26,444 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-02-17 22:46:26,457 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:46:26,463 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:46:26,464 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:46:26,464 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:46:26,464 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:46:26,465 INFO L256 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-17 22:46:26,465 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:46:26,474 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:46:26,475 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:46:26,475 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:46:26,475 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:46:26,476 WARN L254 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-17 22:46:26,476 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:46:26,493 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 22:46:26,494 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 22:46:26,495 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 3229 states and 17845 transitions. cyclomatic complexity: 15171 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 22:46:26,561 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2025-02-17 22:46:26,795 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 3229 states and 17845 transitions. cyclomatic complexity: 15171. 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 9935 states and 57182 transitions. Complement of second has 6 states. [2025-02-17 22:46:26,796 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 22:46:26,797 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 22:46:26,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 78 transitions. [2025-02-17 22:46:26,797 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 78 transitions. Stem has 2 letters. Loop has 2 letters. [2025-02-17 22:46:26,797 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:46:26,797 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 78 transitions. Stem has 4 letters. Loop has 2 letters. [2025-02-17 22:46:26,797 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:46:26,797 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 78 transitions. Stem has 2 letters. Loop has 4 letters. [2025-02-17 22:46:26,798 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:46:26,798 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 9935 states and 57182 transitions. [2025-02-17 22:46:27,030 INFO L131 ngComponentsAnalysis]: Automaton has 501 accepting balls. 1818 [2025-02-17 22:46:27,242 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 9935 states to 7313 states and 42241 transitions. [2025-02-17 22:46:27,243 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 2615 [2025-02-17 22:46:27,262 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 3994 [2025-02-17 22:46:27,263 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7313 states and 42241 transitions. [2025-02-17 22:46:27,263 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-17 22:46:27,263 INFO L218 hiAutomatonCegarLoop]: Abstraction has 7313 states and 42241 transitions. [2025-02-17 22:46:27,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7313 states and 42241 transitions. [2025-02-17 22:46:27,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7313 to 5934. [2025-02-17 22:46:27,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5934 states, 5934 states have (on average 6.017694641051567) internal successors, (35709), 5933 states have internal predecessors, (35709), 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 22:46:27,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5934 states to 5934 states and 35709 transitions. [2025-02-17 22:46:27,548 INFO L240 hiAutomatonCegarLoop]: Abstraction has 5934 states and 35709 transitions. [2025-02-17 22:46:27,548 INFO L432 stractBuchiCegarLoop]: Abstraction has 5934 states and 35709 transitions. [2025-02-17 22:46:27,548 INFO L338 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2025-02-17 22:46:27,548 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5934 states and 35709 transitions. [2025-02-17 22:46:27,593 INFO L131 ngComponentsAnalysis]: Automaton has 501 accepting balls. 1818 [2025-02-17 22:46:27,593 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-17 22:46:27,593 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-17 22:46:27,594 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2025-02-17 22:46:27,594 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-02-17 22:46:27,594 INFO L752 eck$LassoCheckResult]: Stem: "[102] $Ultimate##0-->L27: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" "[105] L12-->L36: Formula: (and (= 2 v_thread2Thread1of1ForFork1_thidvar1_2) (= 2 v_thread2Thread1of1ForFork1_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_2, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_thidvar0, thread2Thread1of1ForFork1_thidvar1]" "[108] L13-->L45: Formula: (and (= 3 v_thread3Thread1of1ForFork2_thidvar0_2) (= 3 v_thread3Thread1of1ForFork2_thidvar1_2) (= 3 v_thread3Thread1of1ForFork2_thidvar2_2)) InVars {} OutVars{thread3Thread1of1ForFork2_thidvar2=v_thread3Thread1of1ForFork2_thidvar2_2, thread3Thread1of1ForFork2_thidvar1=v_thread3Thread1of1ForFork2_thidvar1_2, thread3Thread1of1ForFork2_thidvar0=v_thread3Thread1of1ForFork2_thidvar0_2} AuxVars[] AssignedVars[thread3Thread1of1ForFork2_thidvar2, thread3Thread1of1ForFork2_thidvar1, thread3Thread1of1ForFork2_thidvar0]" [2025-02-17 22:46:27,594 INFO L754 eck$LassoCheckResult]: Loop: "[88] L45-->L47: 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[]" "[90] L47-->L45: Formula: (= v_x3_2 (+ v_x3_3 1)) InVars {x3=v_x3_3} OutVars{x3=v_x3_2} AuxVars[] AssignedVars[x3]" [2025-02-17 22:46:27,595 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:46:27,595 INFO L85 PathProgramCache]: Analyzing trace with hash 131176, now seen corresponding path program 1 times [2025-02-17 22:46:27,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:46:27,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191758344] [2025-02-17 22:46:27,595 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:46:27,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:46:27,597 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:46:27,599 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:46:27,599 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:46:27,599 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:46:27,599 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:46:27,600 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:46:27,601 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:46:27,601 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:46:27,601 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:46:27,602 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:46:27,602 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:46:27,602 INFO L85 PathProgramCache]: Analyzing trace with hash 3779, now seen corresponding path program 1 times [2025-02-17 22:46:27,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:46:27,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525735877] [2025-02-17 22:46:27,602 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:46:27,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:46:27,604 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:46:27,605 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:46:27,605 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:46:27,605 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:46:27,605 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:46:27,606 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:46:27,606 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:46:27,606 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:46:27,606 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:46:27,607 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:46:27,607 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:46:27,607 INFO L85 PathProgramCache]: Analyzing trace with hash 126062954, now seen corresponding path program 1 times [2025-02-17 22:46:27,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:46:27,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516041204] [2025-02-17 22:46:27,608 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:46:27,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:46:27,609 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-17 22:46:27,611 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-17 22:46:27,611 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:46:27,611 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:46:27,611 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:46:27,612 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-17 22:46:27,613 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-17 22:46:27,613 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:46:27,613 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:46:27,614 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:46:27,627 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:46:27,627 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:46:27,627 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:46:27,627 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:46:27,627 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-17 22:46:27,627 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:46:27,627 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:46:27,627 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:46:27,627 INFO L132 ssoRankerPreferences]: Filename of dumped script: indep_loops_minus1_5.c.bpl_petrified1_Iteration3_Loop [2025-02-17 22:46:27,627 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:46:27,627 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:46:27,628 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:46:27,644 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:46:27,644 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-17 22:46:27,644 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:46:27,644 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:46:27,646 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 22:46:27,648 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 22:46:27,649 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:46:27,650 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:46:27,666 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 22:46:27,666 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:46:27,667 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:46:27,670 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 22:46:27,671 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 22:46:27,673 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-17 22:46:27,673 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:46:27,746 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-17 22:46:27,750 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2025-02-17 22:46:27,751 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:46:27,751 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:46:27,751 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:46:27,751 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:46:27,751 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-17 22:46:27,751 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:46:27,751 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:46:27,751 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:46:27,751 INFO L132 ssoRankerPreferences]: Filename of dumped script: indep_loops_minus1_5.c.bpl_petrified1_Iteration3_Loop [2025-02-17 22:46:27,751 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:46:27,751 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:46:27,752 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:46:27,772 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:46:27,772 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-17 22:46:27,772 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:46:27,773 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:46:27,776 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 22:46:27,777 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 22:46:27,779 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 22:46:27,789 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:46:27,789 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-17 22:46:27,789 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:46:27,789 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:46:27,790 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:46:27,791 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-17 22:46:27,792 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-17 22:46:27,793 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-17 22:46:27,796 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-02-17 22:46:27,796 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2025-02-17 22:46:27,796 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:46:27,796 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:46:27,798 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 22:46:27,800 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 22:46:27,801 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-17 22:46:27,801 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-02-17 22:46:27,801 INFO L474 LassoAnalysis]: Proved termination. [2025-02-17 22:46:27,801 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(z, x3) = 1*z - 1*x3 Supporting invariants [] [2025-02-17 22:46:27,806 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2025-02-17 22:46:27,807 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-02-17 22:46:27,824 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:46:27,828 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:46:27,831 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:46:27,831 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:46:27,831 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:46:27,831 INFO L256 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-17 22:46:27,831 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:46:27,839 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:46:27,840 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:46:27,840 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:46:27,840 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:46:27,840 WARN L254 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-17 22:46:27,840 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:46:27,854 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 22:46:27,854 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 22:46:27,854 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 5934 states and 35709 transitions. cyclomatic complexity: 30584 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 22:46:28,140 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2025-02-17 22:46:28,254 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 5934 states and 35709 transitions. cyclomatic complexity: 30584. 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 18697 states and 115179 transitions. Complement of second has 6 states. [2025-02-17 22:46:28,254 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 22:46:28,255 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 22:46:28,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 82 transitions. [2025-02-17 22:46:28,255 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 82 transitions. Stem has 3 letters. Loop has 2 letters. [2025-02-17 22:46:28,255 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:46:28,255 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 82 transitions. Stem has 5 letters. Loop has 2 letters. [2025-02-17 22:46:28,255 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:46:28,255 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 82 transitions. Stem has 3 letters. Loop has 4 letters. [2025-02-17 22:46:28,255 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:46:28,255 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18697 states and 115179 transitions. [2025-02-17 22:46:28,550 INFO L131 ngComponentsAnalysis]: Automaton has 490 accepting balls. 1554 [2025-02-17 22:46:28,923 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18697 states to 12831 states and 78985 transitions. [2025-02-17 22:46:28,924 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3674 [2025-02-17 22:46:28,940 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4969 [2025-02-17 22:46:28,940 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12831 states and 78985 transitions. [2025-02-17 22:46:28,940 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-17 22:46:28,940 INFO L218 hiAutomatonCegarLoop]: Abstraction has 12831 states and 78985 transitions. [2025-02-17 22:46:28,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12831 states and 78985 transitions. [2025-02-17 22:46:29,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12831 to 10809. [2025-02-17 22:46:29,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10809 states, 10809 states have (on average 6.376723101119437) internal successors, (68926), 10808 states have internal predecessors, (68926), 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 22:46:29,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10809 states to 10809 states and 68926 transitions. [2025-02-17 22:46:29,445 INFO L240 hiAutomatonCegarLoop]: Abstraction has 10809 states and 68926 transitions. [2025-02-17 22:46:29,445 INFO L432 stractBuchiCegarLoop]: Abstraction has 10809 states and 68926 transitions. [2025-02-17 22:46:29,445 INFO L338 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2025-02-17 22:46:29,445 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10809 states and 68926 transitions. [2025-02-17 22:46:29,524 INFO L131 ngComponentsAnalysis]: Automaton has 490 accepting balls. 1554 [2025-02-17 22:46:29,524 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-17 22:46:29,524 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-17 22:46:29,524 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2025-02-17 22:46:29,524 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2025-02-17 22:46:29,525 INFO L752 eck$LassoCheckResult]: Stem: "[102] $Ultimate##0-->L27: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" "[105] L12-->L36: Formula: (and (= 2 v_thread2Thread1of1ForFork1_thidvar1_2) (= 2 v_thread2Thread1of1ForFork1_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_2, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_thidvar0, thread2Thread1of1ForFork1_thidvar1]" "[108] L13-->L45: Formula: (and (= 3 v_thread3Thread1of1ForFork2_thidvar0_2) (= 3 v_thread3Thread1of1ForFork2_thidvar1_2) (= 3 v_thread3Thread1of1ForFork2_thidvar2_2)) InVars {} OutVars{thread3Thread1of1ForFork2_thidvar2=v_thread3Thread1of1ForFork2_thidvar2_2, thread3Thread1of1ForFork2_thidvar1=v_thread3Thread1of1ForFork2_thidvar1_2, thread3Thread1of1ForFork2_thidvar0=v_thread3Thread1of1ForFork2_thidvar0_2} AuxVars[] AssignedVars[thread3Thread1of1ForFork2_thidvar2, thread3Thread1of1ForFork2_thidvar1, thread3Thread1of1ForFork2_thidvar0]" "[111] L14-->L54: Formula: (and (= v_thread4Thread1of1ForFork3_thidvar2_2 4) (= v_thread4Thread1of1ForFork3_thidvar3_2 4) (= v_thread4Thread1of1ForFork3_thidvar0_2 4) (= v_thread4Thread1of1ForFork3_thidvar1_2 4)) InVars {} OutVars{thread4Thread1of1ForFork3_thidvar1=v_thread4Thread1of1ForFork3_thidvar1_2, thread4Thread1of1ForFork3_thidvar0=v_thread4Thread1of1ForFork3_thidvar0_2, thread4Thread1of1ForFork3_thidvar3=v_thread4Thread1of1ForFork3_thidvar3_2, thread4Thread1of1ForFork3_thidvar2=v_thread4Thread1of1ForFork3_thidvar2_2} AuxVars[] AssignedVars[thread4Thread1of1ForFork3_thidvar1, thread4Thread1of1ForFork3_thidvar0, thread4Thread1of1ForFork3_thidvar3, thread4Thread1of1ForFork3_thidvar2]" [2025-02-17 22:46:29,525 INFO L754 eck$LassoCheckResult]: Loop: "[92] L54-->L56: 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[]" "[94] L56-->L57: Formula: (= (+ v_x4_3 1) v_x4_2) InVars {x4=v_x4_3} OutVars{x4=v_x4_2} AuxVars[] AssignedVars[x4]" "[95] L57-->L54: Formula: (= v_x5_1 (+ v_x5_2 1)) InVars {x5=v_x5_2} OutVars{x5=v_x5_1} AuxVars[] AssignedVars[x5]" [2025-02-17 22:46:29,526 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:46:29,526 INFO L85 PathProgramCache]: Analyzing trace with hash 4066567, now seen corresponding path program 1 times [2025-02-17 22:46:29,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:46:29,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283491955] [2025-02-17 22:46:29,526 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:46:29,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:46:29,528 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-17 22:46:29,530 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-17 22:46:29,530 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:46:29,530 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:46:29,530 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:46:29,531 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-17 22:46:29,532 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-17 22:46:29,532 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:46:29,532 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:46:29,533 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:46:29,533 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:46:29,533 INFO L85 PathProgramCache]: Analyzing trace with hash 121212, now seen corresponding path program 1 times [2025-02-17 22:46:29,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:46:29,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063796691] [2025-02-17 22:46:29,533 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:46:29,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:46:29,536 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:46:29,537 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:46:29,537 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:46:29,537 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:46:29,537 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:46:29,538 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:46:29,539 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:46:29,539 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:46:29,539 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:46:29,540 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:46:29,541 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:46:29,541 INFO L85 PathProgramCache]: Analyzing trace with hash 888104630, now seen corresponding path program 1 times [2025-02-17 22:46:29,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:46:29,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778057858] [2025-02-17 22:46:29,541 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:46:29,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:46:29,543 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-17 22:46:29,545 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-17 22:46:29,545 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:46:29,545 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:46:29,545 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:46:29,545 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-17 22:46:29,547 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-17 22:46:29,547 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:46:29,547 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:46:29,548 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:46:29,564 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:46:29,565 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:46:29,565 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:46:29,565 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:46:29,565 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-17 22:46:29,565 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:46:29,565 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:46:29,565 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:46:29,565 INFO L132 ssoRankerPreferences]: Filename of dumped script: indep_loops_minus1_5.c.bpl_petrified1_Iteration4_Loop [2025-02-17 22:46:29,565 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:46:29,565 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:46:29,565 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:46:29,568 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:46:29,591 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:46:29,592 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-17 22:46:29,592 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:46:29,592 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:46:29,598 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 22:46:29,600 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 22:46:29,602 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:46:29,602 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:46:29,617 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 22:46:29,621 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:46:29,621 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:46:29,623 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 22:46:29,623 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 22:46:29,624 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-17 22:46:29,624 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:46:29,647 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2025-02-17 22:46:29,648 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {x5=0} Honda state: {x5=0} Generalized eigenvectors: [{x5=-1}, {x5=2}, {x5=0}] Lambdas: [3, 1, 1] Nus: [1, 0] [2025-02-17 22:46:29,653 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 22:46:29,653 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:46:29,654 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:46:29,655 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 22:46:29,657 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 22:46:29,658 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:46:29,658 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:46:29,674 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2025-02-17 22:46:29,674 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:46:29,674 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:46:29,676 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 22:46:29,676 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 22:46:29,677 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-17 22:46:29,677 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:46:29,740 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-17 22:46:29,744 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 22:46:29,744 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:46:29,744 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:46:29,744 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:46:29,744 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:46:29,744 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-17 22:46:29,744 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:46:29,745 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:46:29,745 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:46:29,745 INFO L132 ssoRankerPreferences]: Filename of dumped script: indep_loops_minus1_5.c.bpl_petrified1_Iteration4_Loop [2025-02-17 22:46:29,745 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:46:29,745 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:46:29,747 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:46:29,749 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:46:29,781 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:46:29,781 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-17 22:46:29,782 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:46:29,782 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:46:29,784 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 22:46:29,785 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 22:46:29,787 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 22:46:29,796 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:46:29,797 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-17 22:46:29,797 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:46:29,797 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:46:29,797 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:46:29,798 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-17 22:46:29,798 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-17 22:46:29,799 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2025-02-17 22:46:29,805 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 22:46:29,805 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:46:29,805 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:46:29,807 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 22:46:29,808 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 22:46:29,810 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 22:46:29,819 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:46:29,819 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-17 22:46:29,820 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:46:29,820 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:46:29,820 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:46:29,820 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-17 22:46:29,820 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-17 22:46:29,822 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-17 22:46:29,826 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2025-02-17 22:46:29,826 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-02-17 22:46:29,826 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:46:29,826 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:46:29,828 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 22:46:29,830 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 22:46:29,831 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-17 22:46:29,831 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-02-17 22:46:29,831 INFO L474 LassoAnalysis]: Proved termination. [2025-02-17 22:46:29,831 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(z, x4) = 1*z - 1*x4 Supporting invariants [] [2025-02-17 22:46:29,836 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2025-02-17 22:46:29,837 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-02-17 22:46:29,847 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:46:29,851 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-17 22:46:29,854 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-17 22:46:29,854 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:46:29,854 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:46:29,854 INFO L256 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-17 22:46:29,855 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:46:29,861 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:46:29,862 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:46:29,862 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:46:29,862 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:46:29,863 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-17 22:46:29,863 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:46:29,904 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 22:46:29,905 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 22:46:29,905 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10809 states and 68926 transitions. cyclomatic complexity: 59257 Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:46:30,203 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 22:46:30,387 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10809 states and 68926 transitions. cyclomatic complexity: 59257. Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 30671 states and 196450 transitions. Complement of second has 6 states. [2025-02-17 22:46:30,387 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 22:46:30,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:46:30,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 85 transitions. [2025-02-17 22:46:30,388 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 85 transitions. Stem has 4 letters. Loop has 3 letters. [2025-02-17 22:46:30,388 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:46:30,388 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 85 transitions. Stem has 7 letters. Loop has 3 letters. [2025-02-17 22:46:30,388 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:46:30,388 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 85 transitions. Stem has 4 letters. Loop has 6 letters. [2025-02-17 22:46:30,388 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:46:30,389 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30671 states and 196450 transitions. [2025-02-17 22:46:31,015 INFO L131 ngComponentsAnalysis]: Automaton has 426 accepting balls. 852 [2025-02-17 22:46:31,234 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30671 states to 17067 states and 109798 transitions. [2025-02-17 22:46:31,234 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4373 [2025-02-17 22:46:31,248 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4968 [2025-02-17 22:46:31,248 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17067 states and 109798 transitions. [2025-02-17 22:46:31,249 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-17 22:46:31,249 INFO L218 hiAutomatonCegarLoop]: Abstraction has 17067 states and 109798 transitions. [2025-02-17 22:46:31,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17067 states and 109798 transitions. [2025-02-17 22:46:31,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17067 to 15670. [2025-02-17 22:46:31,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15670 states, 15670 states have (on average 6.509955328653478) internal successors, (102011), 15669 states have internal predecessors, (102011), 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 22:46:31,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15670 states to 15670 states and 102011 transitions. [2025-02-17 22:46:31,751 INFO L240 hiAutomatonCegarLoop]: Abstraction has 15670 states and 102011 transitions. [2025-02-17 22:46:31,751 INFO L432 stractBuchiCegarLoop]: Abstraction has 15670 states and 102011 transitions. [2025-02-17 22:46:31,751 INFO L338 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2025-02-17 22:46:31,751 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15670 states and 102011 transitions. [2025-02-17 22:46:32,021 INFO L131 ngComponentsAnalysis]: Automaton has 426 accepting balls. 852 [2025-02-17 22:46:32,021 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-17 22:46:32,021 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-17 22:46:32,022 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2025-02-17 22:46:32,022 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-02-17 22:46:32,023 INFO L752 eck$LassoCheckResult]: Stem: "[102] $Ultimate##0-->L27: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" "[105] L12-->L36: 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]" "[108] L13-->L45: 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]" "[111] L14-->L54: 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]" "[114] L15-->L64: 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 22:46:32,023 INFO L754 eck$LassoCheckResult]: Loop: "[97] L64-->L66: Formula: (< v_x5_3 v_z_9) InVars {x5=v_x5_3, z=v_z_9} OutVars{x5=v_x5_3, z=v_z_9} AuxVars[] AssignedVars[]" "[99] L66-->L64: Formula: (= (+ v_x5_5 1) v_x5_4) InVars {x5=v_x5_5} OutVars{x5=v_x5_4} AuxVars[] AssignedVars[x5]" [2025-02-17 22:46:32,028 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:46:32,028 INFO L85 PathProgramCache]: Analyzing trace with hash 126063691, now seen corresponding path program 1 times [2025-02-17 22:46:32,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:46:32,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225437995] [2025-02-17 22:46:32,029 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:46:32,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:46:32,034 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-17 22:46:32,037 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-17 22:46:32,038 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:46:32,038 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:46:32,038 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:46:32,039 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-17 22:46:32,040 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-17 22:46:32,040 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:46:32,040 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:46:32,042 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:46:32,042 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:46:32,042 INFO L85 PathProgramCache]: Analyzing trace with hash 4067, now seen corresponding path program 1 times [2025-02-17 22:46:32,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:46:32,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391560395] [2025-02-17 22:46:32,042 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:46:32,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:46:32,044 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:46:32,045 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:46:32,045 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:46:32,045 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:46:32,045 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:46:32,045 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:46:32,046 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:46:32,046 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:46:32,046 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:46:32,047 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:46:32,047 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:46:32,047 INFO L85 PathProgramCache]: Analyzing trace with hash 888125869, now seen corresponding path program 1 times [2025-02-17 22:46:32,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:46:32,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423225612] [2025-02-17 22:46:32,047 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:46:32,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:46:32,049 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-17 22:46:32,052 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-17 22:46:32,052 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:46:32,052 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:46:32,052 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:46:32,053 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-17 22:46:32,055 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-17 22:46:32,055 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:46:32,055 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:46:32,061 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:46:32,089 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:46:32,089 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:46:32,089 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:46:32,089 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:46:32,089 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-17 22:46:32,089 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:46:32,089 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:46:32,089 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:46:32,089 INFO L132 ssoRankerPreferences]: Filename of dumped script: indep_loops_minus1_5.c.bpl_petrified1_Iteration5_Loop [2025-02-17 22:46:32,089 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:46:32,089 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:46:32,091 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:46:32,116 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:46:32,117 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-17 22:46:32,117 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:46:32,117 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:46:32,119 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 22:46:32,121 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 22:46:32,126 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:46:32,126 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:46:32,162 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 22:46:32,163 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:46:32,163 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:46:32,168 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 22:46:32,170 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 22:46:32,175 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-17 22:46:32,175 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:46:32,290 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-17 22:46:32,295 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 22:46:32,296 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:46:32,296 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:46:32,296 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:46:32,296 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:46:32,296 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-17 22:46:32,296 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:46:32,296 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:46:32,296 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:46:32,296 INFO L132 ssoRankerPreferences]: Filename of dumped script: indep_loops_minus1_5.c.bpl_petrified1_Iteration5_Loop [2025-02-17 22:46:32,296 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:46:32,296 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:46:32,297 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:46:32,336 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:46:32,336 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-17 22:46:32,336 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:46:32,336 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:46:32,343 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 22:46:32,345 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 22:46:32,348 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 22:46:32,358 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:46:32,358 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-17 22:46:32,359 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:46:32,359 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:46:32,359 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:46:32,359 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-17 22:46:32,359 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-17 22:46:32,361 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-17 22:46:32,363 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2025-02-17 22:46:32,363 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-02-17 22:46:32,363 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:46:32,364 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:46:32,365 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 22:46:32,367 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 22:46:32,369 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-17 22:46:32,369 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-02-17 22:46:32,369 INFO L474 LassoAnalysis]: Proved termination. [2025-02-17 22:46:32,369 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(x5, z) = -1*x5 + 1*z Supporting invariants [] [2025-02-17 22:46:32,382 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2025-02-17 22:46:32,383 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-02-17 22:46:32,399 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:46:32,406 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-02-17 22:46:32,414 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-02-17 22:46:32,414 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:46:32,414 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:46:32,414 INFO L256 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-17 22:46:32,415 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:46:32,430 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:46:32,430 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:46:32,431 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:46:32,431 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:46:32,435 WARN L254 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-17 22:46:32,435 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:46:32,452 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 22:46:32,453 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 22:46:32,453 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15670 states and 102011 transitions. cyclomatic complexity: 87919 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:46:32,878 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 22:46:33,269 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15670 states and 102011 transitions. cyclomatic complexity: 87919. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 53270 states and 340448 transitions. Complement of second has 6 states. [2025-02-17 22:46:33,269 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 22:46:33,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:46:33,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 90 transitions. [2025-02-17 22:46:33,271 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 90 transitions. Stem has 5 letters. Loop has 2 letters. [2025-02-17 22:46:33,271 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:46:33,271 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 90 transitions. Stem has 7 letters. Loop has 2 letters. [2025-02-17 22:46:33,271 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:46:33,271 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 90 transitions. Stem has 5 letters. Loop has 4 letters. [2025-02-17 22:46:33,271 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:46:33,271 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 53270 states and 340448 transitions. [2025-02-17 22:46:34,411 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-02-17 22:46:34,411 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 53270 states to 0 states and 0 transitions. [2025-02-17 22:46:34,412 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2025-02-17 22:46:34,412 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2025-02-17 22:46:34,412 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2025-02-17 22:46:34,412 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2025-02-17 22:46:34,412 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-02-17 22:46:34,412 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-02-17 22:46:34,412 INFO L432 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-02-17 22:46:34,412 INFO L338 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2025-02-17 22:46:34,412 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2025-02-17 22:46:34,412 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2025-02-17 22:46:34,412 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2025-02-17 22:46:34,418 INFO L201 PluginConnector]: Adding new model indep_loops_minus1_5.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 17.02 10:46:34 BoogieIcfgContainer [2025-02-17 22:46:34,419 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2025-02-17 22:46:34,419 INFO L158 Benchmark]: Toolchain (without parser) took 10373.63ms. Allocated memory was 142.6MB in the beginning and 1.2GB in the end (delta: 1.1GB). Free memory was 72.9MB in the beginning and 494.9MB in the end (delta: -422.0MB). Peak memory consumption was 685.2MB. Max. memory is 8.0GB. [2025-02-17 22:46:34,419 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.79ms. Allocated memory is still 142.6MB. Free memory is still 73.8MB. There was no memory consumed. Max. memory is 8.0GB. [2025-02-17 22:46:34,420 INFO L158 Benchmark]: Boogie Procedure Inliner took 16.76ms. Allocated memory is still 142.6MB. Free memory was 72.9MB in the beginning and 71.6MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 8.0GB. [2025-02-17 22:46:34,420 INFO L158 Benchmark]: Boogie Preprocessor took 13.10ms. Allocated memory is still 142.6MB. Free memory was 71.6MB in the beginning and 70.9MB in the end (delta: 726.2kB). There was no memory consumed. Max. memory is 8.0GB. [2025-02-17 22:46:34,420 INFO L158 Benchmark]: RCFGBuilder took 165.73ms. Allocated memory is still 142.6MB. Free memory was 70.9MB in the beginning and 60.9MB in the end (delta: 10.0MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2025-02-17 22:46:34,420 INFO L158 Benchmark]: BuchiAutomizer took 10174.81ms. Allocated memory was 142.6MB in the beginning and 1.2GB in the end (delta: 1.1GB). Free memory was 60.9MB in the beginning and 494.9MB in the end (delta: -434.0MB). Peak memory consumption was 672.6MB. Max. memory is 8.0GB. [2025-02-17 22:46:34,422 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.79ms. Allocated memory is still 142.6MB. Free memory is still 73.8MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 16.76ms. Allocated memory is still 142.6MB. Free memory was 72.9MB in the beginning and 71.6MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 8.0GB. * Boogie Preprocessor took 13.10ms. Allocated memory is still 142.6MB. Free memory was 71.6MB in the beginning and 70.9MB in the end (delta: 726.2kB). There was no memory consumed. Max. memory is 8.0GB. * RCFGBuilder took 165.73ms. Allocated memory is still 142.6MB. Free memory was 70.9MB in the beginning and 60.9MB in the end (delta: 10.0MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * BuchiAutomizer took 10174.81ms. Allocated memory was 142.6MB in the beginning and 1.2GB in the end (delta: 1.1GB). Free memory was 60.9MB in the beginning and 494.9MB in the end (delta: -434.0MB). Peak memory consumption was 672.6MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 5 terminating modules (0 trivial, 5 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -1 * x1 + z and consists of 4 locations. One deterministic module has affine ranking function z + -1 * x2 and consists of 4 locations. One deterministic module has affine ranking function -1 * x3 + z and consists of 4 locations. One deterministic module has affine ranking function -1 * x4 + z and consists of 4 locations. One deterministic module has affine ranking function -1 * x5 + z and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 10.0s and 6 iterations. TraceHistogramMax:1. Analysis of lassos took 1.5s. Construction of modules took 0.2s. Büchi inclusion checks took 2.3s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 4. Automata minimization 1.5s AutomataMinimizationTime, 4 MinimizatonAttempts, 6010 StatesRemovedByMinimization, 4 NontrivialMinimizations. Non-live state removal took 3.3s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [5, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 284 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 279 mSDsluCounter, 274 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 141 mSDsCounter, 13 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 381 IncrementalHoareTripleChecker+Invalid, 394 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 13 mSolverCounterUnsat, 133 mSDtfsCounter, 381 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT5 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital13 mio100 ax100 hnf100 lsp94 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq150 hnf94 smp100 dnf100 smp100 tf111 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 36ms VariablesStem: 0 VariablesLoop: 3 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 5 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.6s InitialAbstractionConstructionTime: 0.0s InitialAbstraction: - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2025-02-17 22:46:34,434 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...