/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/BuchiAutomizerBplInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Termination-32bit-Automizer_Default.epf --buchiautomizer.automaton.type.for.concurrent.programs BUCHI_PETRI_NET -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/vector-add.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.fs.rabin-petrinet-4c29625-m [2023-10-12 17:30:26,366 INFO L172 SettingsManager]: Resetting all preferences to default values... [2023-10-12 17:30:26,427 INFO L100 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Termination-32bit-Automizer_Default.epf [2023-10-12 17:30:26,449 INFO L114 SettingsManager]: Preferences different from defaults after loading the file: [2023-10-12 17:30:26,450 INFO L135 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-10-12 17:30:26,451 INFO L137 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-10-12 17:30:26,452 INFO L135 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-10-12 17:30:26,452 INFO L137 SettingsManager]: * Create parallel compositions if possible=false [2023-10-12 17:30:26,452 INFO L137 SettingsManager]: * Use SBE=true [2023-10-12 17:30:26,455 INFO L135 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-10-12 17:30:26,455 INFO L137 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-10-12 17:30:26,455 INFO L137 SettingsManager]: * Use old map elimination=false [2023-10-12 17:30:26,456 INFO L137 SettingsManager]: * Use external solver (rank synthesis)=false [2023-10-12 17:30:26,457 INFO L137 SettingsManager]: * Use only trivial implications for array writes=true [2023-10-12 17:30:26,457 INFO L137 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-10-12 17:30:26,457 INFO L135 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-10-12 17:30:26,457 INFO L137 SettingsManager]: * sizeof long=4 [2023-10-12 17:30:26,457 INFO L137 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-10-12 17:30:26,457 INFO L137 SettingsManager]: * Overapproximate operations on floating types=true [2023-10-12 17:30:26,458 INFO L137 SettingsManager]: * sizeof POINTER=4 [2023-10-12 17:30:26,458 INFO L137 SettingsManager]: * Check division by zero=IGNORE [2023-10-12 17:30:26,458 INFO L137 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-10-12 17:30:26,459 INFO L137 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-10-12 17:30:26,459 INFO L137 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-10-12 17:30:26,460 INFO L137 SettingsManager]: * sizeof long double=12 [2023-10-12 17:30:26,460 INFO L137 SettingsManager]: * Check if freed pointer was valid=false [2023-10-12 17:30:26,460 INFO L137 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-10-12 17:30:26,460 INFO L137 SettingsManager]: * Use constant arrays=true [2023-10-12 17:30:26,460 INFO L137 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-10-12 17:30:26,460 INFO L135 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-10-12 17:30:26,461 INFO L137 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-10-12 17:30:26,461 INFO L135 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-10-12 17:30:26,461 INFO L137 SettingsManager]: * Trace refinement strategy=CAMEL [2023-10-12 17:30:26,463 INFO L135 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-10-12 17:30:26,463 INFO L137 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: Automaton type for concurrent programs -> BUCHI_PETRI_NET [2023-10-12 17:30:26,650 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-10-12 17:30:26,676 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-10-12 17:30:26,680 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-10-12 17:30:26,681 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2023-10-12 17:30:26,682 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2023-10-12 17:30:26,683 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/vector-add.wvr.bpl [2023-10-12 17:30:26,683 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/vector-add.wvr.bpl' [2023-10-12 17:30:26,700 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-10-12 17:30:26,701 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2023-10-12 17:30:26,702 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-10-12 17:30:26,702 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-10-12 17:30:26,702 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-10-12 17:30:26,710 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "vector-add.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:30:26" (1/1) ... [2023-10-12 17:30:26,718 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "vector-add.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:30:26" (1/1) ... [2023-10-12 17:30:26,727 INFO L138 Inliner]: procedures = 4, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2023-10-12 17:30:26,728 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-10-12 17:30:26,729 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-10-12 17:30:26,729 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-10-12 17:30:26,729 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-10-12 17:30:26,735 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "vector-add.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:30:26" (1/1) ... [2023-10-12 17:30:26,735 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "vector-add.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:30:26" (1/1) ... [2023-10-12 17:30:26,736 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "vector-add.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:30:26" (1/1) ... [2023-10-12 17:30:26,736 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "vector-add.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:30:26" (1/1) ... [2023-10-12 17:30:26,737 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "vector-add.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:30:26" (1/1) ... [2023-10-12 17:30:26,739 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "vector-add.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:30:26" (1/1) ... [2023-10-12 17:30:26,740 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "vector-add.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:30:26" (1/1) ... [2023-10-12 17:30:26,741 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "vector-add.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:30:26" (1/1) ... [2023-10-12 17:30:26,745 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-10-12 17:30:26,745 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-10-12 17:30:26,746 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-10-12 17:30:26,746 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-10-12 17:30:26,746 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "vector-add.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:30:26" (1/1) ... [2023-10-12 17:30:26,752 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:30:26,761 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:30:26,790 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:30:26,796 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-10-12 17:30:26,822 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2023-10-12 17:30:26,822 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-10-12 17:30:26,825 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-10-12 17:30:26,825 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2023-10-12 17:30:26,826 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-10-12 17:30:26,826 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-10-12 17:30:26,826 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2023-10-12 17:30:26,827 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-10-12 17:30:26,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-10-12 17:30:26,827 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2023-10-12 17:30:26,828 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-10-12 17:30:26,828 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-10-12 17:30:26,828 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-10-12 17:30:26,865 INFO L236 CfgBuilder]: Building ICFG [2023-10-12 17:30:26,867 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-10-12 17:30:26,957 INFO L277 CfgBuilder]: Performing block encoding [2023-10-12 17:30:26,969 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-10-12 17:30:26,969 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-10-12 17:30:26,971 INFO L201 PluginConnector]: Adding new model vector-add.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:30:26 BoogieIcfgContainer [2023-10-12 17:30:26,971 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-10-12 17:30:26,971 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-10-12 17:30:26,972 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-10-12 17:30:26,974 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-10-12 17:30:26,974 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-10-12 17:30:26,974 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "vector-add.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:30:26" (1/2) ... [2023-10-12 17:30:26,975 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@19b6eade and model type vector-add.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 12.10 05:30:26, skipping insertion in model container [2023-10-12 17:30:26,975 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-10-12 17:30:26,976 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "vector-add.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:30:26" (2/2) ... [2023-10-12 17:30:26,976 INFO L332 chiAutomizerObserver]: Analyzing ICFG vector-add.wvr.bpl [2023-10-12 17:30:27,038 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-10-12 17:30:27,055 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 37 places, 33 transitions, 90 flow [2023-10-12 17:30:27,075 INFO L124 PetriNetUnfolderBase]: 3/27 cut-off events. [2023-10-12 17:30:27,075 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-10-12 17:30:27,079 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40 conditions, 27 events. 3/27 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 36 event pairs, 0 based on Foata normal form. 0/23 useless extension candidates. Maximal degree in co-relation 19. Up to 2 conditions per place. [2023-10-12 17:30:27,079 INFO L82 GeneralOperation]: Start removeDead. Operand has 37 places, 33 transitions, 90 flow [2023-10-12 17:30:27,082 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 34 places, 27 transitions, 72 flow [2023-10-12 17:30:27,085 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-10-12 17:30:27,118 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 34 places, 27 transitions, 72 flow [2023-10-12 17:30:27,120 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 34 places, 27 transitions, 72 flow [2023-10-12 17:30:27,121 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 34 places, 27 transitions, 72 flow [2023-10-12 17:30:27,126 INFO L124 PetriNetUnfolderBase]: 3/27 cut-off events. [2023-10-12 17:30:27,127 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-10-12 17:30:27,127 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40 conditions, 27 events. 3/27 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 36 event pairs, 0 based on Foata normal form. 0/23 useless extension candidates. Maximal degree in co-relation 19. Up to 2 conditions per place. [2023-10-12 17:30:27,128 INFO L119 LiptonReduction]: Number of co-enabled transitions 144 [2023-10-12 17:30:27,393 INFO L134 LiptonReduction]: Checked pairs total: 124 [2023-10-12 17:30:27,393 INFO L136 LiptonReduction]: Total number of compositions: 13 [2023-10-12 17:30:27,403 INFO L305 stractBuchiCegarLoop]: Interprodecural is true [2023-10-12 17:30:27,404 INFO L306 stractBuchiCegarLoop]: Hoare is false [2023-10-12 17:30:27,404 INFO L307 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-10-12 17:30:27,404 INFO L308 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-10-12 17:30:27,404 INFO L309 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-10-12 17:30:27,404 INFO L310 stractBuchiCegarLoop]: Difference is false [2023-10-12 17:30:27,404 INFO L311 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-10-12 17:30:27,404 INFO L315 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiPetriNetCegarLoop ======== [2023-10-12 17:30:27,405 INFO L84 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 22 places, 15 transitions, 48 flow [2023-10-12 17:30:27,408 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-10-12 17:30:27,408 INFO L124 PetriNetUnfolderBase]: 0/2 cut-off events. [2023-10-12 17:30:27,408 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-10-12 17:30:27,408 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty language is not empty [2023-10-12 17:30:27,412 INFO L337 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-10-12 17:30:27,413 INFO L84 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 22 places, 15 transitions, 48 flow [2023-10-12 17:30:27,414 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-10-12 17:30:27,414 INFO L124 PetriNetUnfolderBase]: 0/2 cut-off events. [2023-10-12 17:30:27,414 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-10-12 17:30:27,414 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty language is not empty [2023-10-12 17:30:27,417 INFO L748 eck$LassoCheckResult]: Stem: 41#[$Ultimate##0]true [105] $Ultimate##0-->L60: Formula: (and (<= 0 v_M_16) (= v_M_16 v_k_19) (= v_i_21 v_j_21) (< v_M_16 v_N_18) (= v_C1_19 v_C2_29) (= v_i_21 0)) InVars {C1=v_C1_19, C2=v_C2_29, N=v_N_18, M=v_M_16, k=v_k_19, j=v_j_21, i=v_i_21} OutVars{C1=v_C1_19, C2=v_C2_29, N=v_N_18, M=v_M_16, k=v_k_19, j=v_j_21, i=v_i_21} AuxVars[] AssignedVars[] 43#[L60]true [83] L60-->L23-1: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0] 45#[L23-1, L60-1]true [2023-10-12 17:30:27,417 INFO L750 eck$LassoCheckResult]: Loop: 45#[L23-1, L60-1]true [98] L23-1-->L23-1: Formula: (and (= v_i_15 (+ v_i_16 1)) (< v_i_16 v_N_10) (= (store v_C1_12 v_i_16 (+ (select v_B_12 v_i_16) (select v_A_12 v_i_16))) v_C1_11)) InVars {A=v_A_12, C1=v_C1_12, N=v_N_10, i=v_i_16, B=v_B_12} OutVars{A=v_A_12, C1=v_C1_11, N=v_N_10, i=v_i_15, B=v_B_12} AuxVars[] AssignedVars[C1, i] 45#[L23-1, L60-1]true [2023-10-12 17:30:27,422 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:30:27,422 INFO L85 PathProgramCache]: Analyzing trace with hash 4299, now seen corresponding path program 1 times [2023-10-12 17:30:27,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:30:27,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733326720] [2023-10-12 17:30:27,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:30:27,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:30:27,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:30:27,496 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:30:27,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:30:27,513 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:30:27,516 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:30:27,516 INFO L85 PathProgramCache]: Analyzing trace with hash 129, now seen corresponding path program 1 times [2023-10-12 17:30:27,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:30:27,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174209025] [2023-10-12 17:30:27,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:30:27,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:30:27,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:30:27,538 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:30:27,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:30:27,551 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:30:27,553 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:30:27,553 INFO L85 PathProgramCache]: Analyzing trace with hash 133367, now seen corresponding path program 1 times [2023-10-12 17:30:27,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:30:27,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593883267] [2023-10-12 17:30:27,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:30:27,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:30:27,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:30:27,567 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:30:27,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:30:27,581 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:30:27,684 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:30:27,686 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:30:27,686 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:30:27,686 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:30:27,686 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-10-12 17:30:27,686 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:30:27,686 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:30:27,686 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:30:27,687 INFO L133 ssoRankerPreferences]: Filename of dumped script: vector-add.wvr.bpl_BEv2_Iteration1_Lasso [2023-10-12 17:30:27,687 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:30:27,687 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:30:27,697 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:30:27,704 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:30:27,725 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:30:27,781 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:30:27,784 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-10-12 17:30:27,785 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:30:27,785 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:30:27,787 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:30:27,799 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2023-10-12 17:30:27,801 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 [2023-10-12 17:30:27,807 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:30:27,808 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:30:27,808 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:30:27,808 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:30:27,811 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:30:27,811 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:30:27,842 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:30:27,845 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2023-10-12 17:30:27,846 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:30:27,846 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:30:27,847 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:30:27,849 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-10-12 17:30:27,850 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 [2023-10-12 17:30:27,856 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:30:27,856 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-10-12 17:30:27,857 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:30:27,857 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:30:27,857 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:30:27,858 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-10-12 17:30:27,858 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-10-12 17:30:27,890 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:30:27,893 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2023-10-12 17:30:27,893 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:30:27,894 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:30:27,895 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:30:27,906 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-10-12 17:30:27,907 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 [2023-10-12 17:30:27,914 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:30:27,914 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:30:27,914 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:30:27,914 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:30:27,919 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:30:27,919 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:30:27,938 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:30:27,941 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2023-10-12 17:30:27,941 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:30:27,941 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:30:27,953 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:30:27,956 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-10-12 17:30:27,957 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 [2023-10-12 17:30:27,964 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:30:27,964 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-10-12 17:30:27,964 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:30:27,964 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:30:27,964 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:30:27,965 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-10-12 17:30:27,965 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-10-12 17:30:27,984 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:30:27,992 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2023-10-12 17:30:27,992 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:30:27,992 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:30:28,000 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:30:28,002 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-10-12 17:30:28,005 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 [2023-10-12 17:30:28,011 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:30:28,012 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:30:28,012 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:30:28,012 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:30:28,034 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:30:28,035 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:30:28,055 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-10-12 17:30:28,083 INFO L443 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver. [2023-10-12 17:30:28,083 INFO L444 ModelExtractionUtils]: 8 out of 16 variables were initially zero. Simplification set additionally 5 variables to zero. [2023-10-12 17:30:28,084 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:30:28,085 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:30:28,087 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:30:28,089 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2023-10-12 17:30:28,090 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-10-12 17:30:28,098 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2023-10-12 17:30:28,098 INFO L513 LassoAnalysis]: Proved termination. [2023-10-12 17:30:28,098 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(i, N) = -1*i + 1*N Supporting invariants [] [2023-10-12 17:30:28,104 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2023-10-12 17:30:28,107 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-10-12 17:30:28,124 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:30:28,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:30:28,134 INFO L262 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 2 conjunts are in the unsatisfiable core [2023-10-12 17:30:28,135 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:30:28,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:30:28,148 WARN L260 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-10-12 17:30:28,149 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:30:28,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-10-12 17:30:28,182 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2023-10-12 17:30:28,184 INFO L74 BuchiComplementNCSB]: Start buchiComplementNCSB. Operand has 2 states, 2 states have (on average 1.5) 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) [2023-10-12 17:30:28,274 INFO L82 BuchiComplementNCSB]: Finished buchiComplementNCSB. Operand has 2 states, 2 states have (on average 1.5) 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 5 states and 268 transitions. [2023-10-12 17:30:28,275 INFO L79 BuchiIntersect]: Starting Intersection [2023-10-12 17:30:28,277 INFO L86 BuchiIntersect]: Exiting Intersection [2023-10-12 17:30:28,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-10-12 17:30:28,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 1.5) 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) [2023-10-12 17:30:28,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 184 transitions. [2023-10-12 17:30:28,285 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 184 transitions. Stem has 2 letters. Loop has 1 letters. [2023-10-12 17:30:28,285 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:30:28,285 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 184 transitions. Stem has 3 letters. Loop has 1 letters. [2023-10-12 17:30:28,285 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:30:28,285 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 184 transitions. Stem has 2 letters. Loop has 2 letters. [2023-10-12 17:30:28,286 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:30:28,286 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 32 places, 172 transitions, 904 flow [2023-10-12 17:30:28,305 INFO L124 PetriNetUnfolderBase]: 135/207 cut-off events. [2023-10-12 17:30:28,305 INFO L125 PetriNetUnfolderBase]: For 57/57 co-relation queries the response was YES. [2023-10-12 17:30:28,306 INFO L83 FinitePrefix]: Finished finitePrefix Result has 486 conditions, 207 events. 135/207 cut-off events. For 57/57 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 563 event pairs, 16 based on Foata normal form. 0/120 useless extension candidates. Maximal degree in co-relation 344. Up to 71 conditions per place. [2023-10-12 17:30:28,306 INFO L82 GeneralOperation]: Start removeDeadBuchi. Operand has 32 places, 172 transitions, 904 flow [2023-10-12 17:30:28,309 INFO L88 GeneralOperation]: Finished RemoveDeadBuchi, result has has 32 places, 172 transitions, 904 flow [2023-10-12 17:30:28,309 INFO L430 stractBuchiCegarLoop]: Abstraction has has 32 places, 172 transitions, 904 flow [2023-10-12 17:30:28,309 INFO L337 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-10-12 17:30:28,309 INFO L84 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 32 places, 172 transitions, 904 flow [2023-10-12 17:30:28,313 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-10-12 17:30:28,313 INFO L124 PetriNetUnfolderBase]: 16/28 cut-off events. [2023-10-12 17:30:28,313 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2023-10-12 17:30:28,313 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty language is not empty [2023-10-12 17:30:28,314 INFO L748 eck$LassoCheckResult]: Stem: 41#[$Ultimate##0]true [105] $Ultimate##0-->L60: Formula: (and (<= 0 v_M_16) (= v_M_16 v_k_19) (= v_i_21 v_j_21) (< v_M_16 v_N_18) (= v_C1_19 v_C2_29) (= v_i_21 0)) InVars {C1=v_C1_19, C2=v_C2_29, N=v_N_18, M=v_M_16, k=v_k_19, j=v_j_21, i=v_i_21} OutVars{C1=v_C1_19, C2=v_C2_29, N=v_N_18, M=v_M_16, k=v_k_19, j=v_j_21, i=v_i_21} AuxVars[] AssignedVars[] 43#[L60]true [83] L60-->L23-1: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0] 45#[L23-1, L60-1]true [86] L60-1-->L34-1: Formula: (and (= 2 v_thread2Thread1of1ForFork1_thidvar1_2) (= 2 v_thread2Thread1of1ForFork1_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_2, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_thidvar0, thread2Thread1of1ForFork1_thidvar1] 90#[L23-1, L61, L34-1]true [2023-10-12 17:30:28,314 INFO L750 eck$LassoCheckResult]: Loop: 90#[L23-1, L61, L34-1]true [95] L34-1-->L34-1: Formula: (and (= v_j_15 (+ v_j_16 1)) (< v_j_16 v_M_10) (= v_C2_15 (store v_C2_16 v_j_16 (+ (select v_A_10 v_j_16) (select v_B_10 v_j_16))))) InVars {A=v_A_10, C2=v_C2_16, M=v_M_10, j=v_j_16, B=v_B_10} OutVars{A=v_A_10, C2=v_C2_15, M=v_M_10, j=v_j_15, B=v_B_10} AuxVars[] AssignedVars[C2, j] 90#[L23-1, L61, L34-1]true [95] L34-1-->L34-1: Formula: (and (= v_j_15 (+ v_j_16 1)) (< v_j_16 v_M_10) (= v_C2_15 (store v_C2_16 v_j_16 (+ (select v_A_10 v_j_16) (select v_B_10 v_j_16))))) InVars {A=v_A_10, C2=v_C2_16, M=v_M_10, j=v_j_16, B=v_B_10} OutVars{A=v_A_10, C2=v_C2_15, M=v_M_10, j=v_j_15, B=v_B_10} AuxVars[] AssignedVars[C2, j] 90#[L23-1, L61, L34-1]true [2023-10-12 17:30:28,314 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:30:28,314 INFO L85 PathProgramCache]: Analyzing trace with hash 133355, now seen corresponding path program 1 times [2023-10-12 17:30:28,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:30:28,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856559789] [2023-10-12 17:30:28,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:30:28,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:30:28,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:30:28,323 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:30:28,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:30:28,326 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:30:28,326 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:30:28,326 INFO L85 PathProgramCache]: Analyzing trace with hash 4001, now seen corresponding path program 1 times [2023-10-12 17:30:28,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:30:28,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508776135] [2023-10-12 17:30:28,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:30:28,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:30:28,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:30:28,332 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:30:28,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:30:28,336 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:30:28,337 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:30:28,337 INFO L85 PathProgramCache]: Analyzing trace with hash 128157195, now seen corresponding path program 1 times [2023-10-12 17:30:28,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:30:28,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970790873] [2023-10-12 17:30:28,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:30:28,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:30:28,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:30:28,344 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:30:28,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:30:28,352 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:30:28,425 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:30:28,425 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:30:28,425 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:30:28,425 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:30:28,425 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-10-12 17:30:28,425 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:30:28,425 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:30:28,425 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:30:28,425 INFO L133 ssoRankerPreferences]: Filename of dumped script: vector-add.wvr.bpl_BEv2_Iteration2_Lasso [2023-10-12 17:30:28,425 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:30:28,426 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:30:28,427 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:30:28,429 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:30:28,448 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:30:28,450 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:30:28,452 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:30:28,519 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:30:28,519 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-10-12 17:30:28,519 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:30:28,519 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:30:28,535 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:30:28,536 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2023-10-12 17:30:28,537 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 [2023-10-12 17:30:28,543 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:30:28,544 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:30:28,544 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:30:28,544 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:30:28,553 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:30:28,553 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:30:28,585 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:30:28,612 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2023-10-12 17:30:28,617 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2023-10-12 17:30:28,618 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:30:28,618 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:30:28,620 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:30:28,623 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2023-10-12 17:30:28,631 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 [2023-10-12 17:30:28,637 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:30:28,637 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:30:28,637 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:30:28,637 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:30:28,639 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:30:28,639 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:30:28,655 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:30:28,658 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2023-10-12 17:30:28,659 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:30:28,659 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:30:28,660 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:30:28,663 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2023-10-12 17:30:28,664 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 [2023-10-12 17:30:28,671 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:30:28,671 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-10-12 17:30:28,671 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:30:28,671 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:30:28,671 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:30:28,673 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-10-12 17:30:28,673 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-10-12 17:30:28,680 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:30:28,683 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2023-10-12 17:30:28,684 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:30:28,684 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:30:28,685 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:30:28,687 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2023-10-12 17:30:28,689 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 [2023-10-12 17:30:28,696 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:30:28,696 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:30:28,696 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:30:28,696 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:30:28,701 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:30:28,701 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:30:28,721 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:30:28,731 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2023-10-12 17:30:28,731 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:30:28,732 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:30:28,745 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:30:28,751 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 [2023-10-12 17:30:28,757 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:30:28,757 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-10-12 17:30:28,758 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:30:28,758 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:30:28,758 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:30:28,759 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-10-12 17:30:28,759 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-10-12 17:30:28,761 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2023-10-12 17:30:28,769 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:30:28,773 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2023-10-12 17:30:28,773 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:30:28,773 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:30:28,774 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:30:28,776 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2023-10-12 17:30:28,778 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 [2023-10-12 17:30:28,785 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:30:28,785 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:30:28,785 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:30:28,785 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:30:28,789 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:30:28,789 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:30:28,801 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-10-12 17:30:28,806 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2023-10-12 17:30:28,806 INFO L444 ModelExtractionUtils]: 12 out of 16 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-10-12 17:30:28,807 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:30:28,807 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:30:28,813 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:30:28,829 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-10-12 17:30:28,838 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2023-10-12 17:30:28,845 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2023-10-12 17:30:28,845 INFO L513 LassoAnalysis]: Proved termination. [2023-10-12 17:30:28,846 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(M, j) = 1*M - 1*j Supporting invariants [] [2023-10-12 17:30:28,849 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2023-10-12 17:30:28,854 INFO L156 tatePredicateManager]: 1 out of 1 supporting invariants were superfluous and have been removed [2023-10-12 17:30:28,863 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:30:28,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:30:28,871 INFO L262 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjunts are in the unsatisfiable core [2023-10-12 17:30:28,871 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:30:28,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:30:28,879 INFO L262 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjunts are in the unsatisfiable core [2023-10-12 17:30:28,879 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:30:28,890 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-10-12 17:30:28,891 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 [2023-10-12 17:30:28,891 INFO L74 BuchiComplementNCSB]: Start buchiComplementNCSB. 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) [2023-10-12 17:30:29,012 INFO L82 BuchiComplementNCSB]: Finished buchiComplementNCSB. 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 7 states and 353 transitions. [2023-10-12 17:30:29,012 INFO L79 BuchiIntersect]: Starting Intersection [2023-10-12 17:30:29,027 INFO L86 BuchiIntersect]: Exiting Intersection [2023-10-12 17:30:29,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-10-12 17:30:29,028 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) [2023-10-12 17:30:29,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 230 transitions. [2023-10-12 17:30:29,029 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 230 transitions. Stem has 3 letters. Loop has 2 letters. [2023-10-12 17:30:29,029 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:30:29,029 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 230 transitions. Stem has 5 letters. Loop has 2 letters. [2023-10-12 17:30:29,029 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:30:29,029 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 230 transitions. Stem has 3 letters. Loop has 4 letters. [2023-10-12 17:30:29,029 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:30:29,029 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 46 places, 2608 transitions, 19104 flow [2023-10-12 17:30:29,088 INFO L124 PetriNetUnfolderBase]: 383/568 cut-off events. [2023-10-12 17:30:29,089 INFO L125 PetriNetUnfolderBase]: For 155/155 co-relation queries the response was YES. [2023-10-12 17:30:29,090 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1875 conditions, 568 events. 383/568 cut-off events. For 155/155 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 2011 event pairs, 22 based on Foata normal form. 0/318 useless extension candidates. Maximal degree in co-relation 1278. Up to 202 conditions per place. [2023-10-12 17:30:29,090 INFO L82 GeneralOperation]: Start removeDeadBuchi. Operand has 46 places, 2608 transitions, 19104 flow [2023-10-12 17:30:29,114 INFO L88 GeneralOperation]: Finished RemoveDeadBuchi, result has has 46 places, 2608 transitions, 19104 flow [2023-10-12 17:30:29,114 INFO L430 stractBuchiCegarLoop]: Abstraction has has 46 places, 2608 transitions, 19104 flow [2023-10-12 17:30:29,114 INFO L337 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-10-12 17:30:29,114 INFO L84 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 46 places, 2608 transitions, 19104 flow [2023-10-12 17:30:29,141 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-10-12 17:30:29,141 INFO L124 PetriNetUnfolderBase]: 164/230 cut-off events. [2023-10-12 17:30:29,141 INFO L125 PetriNetUnfolderBase]: For 46/46 co-relation queries the response was YES. [2023-10-12 17:30:29,141 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty language is not empty [2023-10-12 17:30:29,142 INFO L748 eck$LassoCheckResult]: Stem: 41#[$Ultimate##0]true [105] $Ultimate##0-->L60: Formula: (and (<= 0 v_M_16) (= v_M_16 v_k_19) (= v_i_21 v_j_21) (< v_M_16 v_N_18) (= v_C1_19 v_C2_29) (= v_i_21 0)) InVars {C1=v_C1_19, C2=v_C2_29, N=v_N_18, M=v_M_16, k=v_k_19, j=v_j_21, i=v_i_21} OutVars{C1=v_C1_19, C2=v_C2_29, N=v_N_18, M=v_M_16, k=v_k_19, j=v_j_21, i=v_i_21} AuxVars[] AssignedVars[] 43#[L60]true [83] L60-->L23-1: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0] 45#[L23-1, L60-1]true [97] L23-1-->thread1EXIT: Formula: (<= v_N_8 v_i_13) InVars {N=v_N_8, i=v_i_13} OutVars{N=v_N_8, i=v_i_13} AuxVars[] AssignedVars[] 147#[L60-1, thread1EXIT]true [86] L60-1-->L34-1: Formula: (and (= 2 v_thread2Thread1of1ForFork1_thidvar1_2) (= 2 v_thread2Thread1of1ForFork1_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_2, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_thidvar0, thread2Thread1of1ForFork1_thidvar1] 149#[L61, L34-1, thread1EXIT]true [89] L61-->L45-1: Formula: (and (= 3 v_thread3Thread1of1ForFork2_thidvar0_2) (= 3 v_thread3Thread1of1ForFork2_thidvar1_2) (= 3 v_thread3Thread1of1ForFork2_thidvar2_2)) InVars {} OutVars{thread3Thread1of1ForFork2_thidvar2=v_thread3Thread1of1ForFork2_thidvar2_2, thread3Thread1of1ForFork2_thidvar1=v_thread3Thread1of1ForFork2_thidvar1_2, thread3Thread1of1ForFork2_thidvar0=v_thread3Thread1of1ForFork2_thidvar0_2} AuxVars[] AssignedVars[thread3Thread1of1ForFork2_thidvar2, thread3Thread1of1ForFork2_thidvar1, thread3Thread1of1ForFork2_thidvar0] 151#[L34-1, L62, L45-1, thread1EXIT]true [2023-10-12 17:30:29,142 INFO L750 eck$LassoCheckResult]: Loop: 151#[L34-1, L62, L45-1, thread1EXIT]true [101] L45-1-->L45-1: Formula: (and (< v_k_16 v_N_14) (= v_k_15 (+ v_k_16 1)) (= v_C2_21 (store v_C2_22 v_k_16 (+ (select v_B_14 v_k_16) (select v_A_14 v_k_16))))) InVars {A=v_A_14, C2=v_C2_22, N=v_N_14, k=v_k_16, B=v_B_14} OutVars{A=v_A_14, C2=v_C2_21, N=v_N_14, k=v_k_15, B=v_B_14} AuxVars[] AssignedVars[C2, k] 151#[L34-1, L62, L45-1, thread1EXIT]true [101] L45-1-->L45-1: Formula: (and (< v_k_16 v_N_14) (= v_k_15 (+ v_k_16 1)) (= v_C2_21 (store v_C2_22 v_k_16 (+ (select v_B_14 v_k_16) (select v_A_14 v_k_16))))) InVars {A=v_A_14, C2=v_C2_22, N=v_N_14, k=v_k_16, B=v_B_14} OutVars{A=v_A_14, C2=v_C2_21, N=v_N_14, k=v_k_15, B=v_B_14} AuxVars[] AssignedVars[C2, k] 151#[L34-1, L62, L45-1, thread1EXIT]true [2023-10-12 17:30:29,142 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:30:29,142 INFO L85 PathProgramCache]: Analyzing trace with hash 128167481, now seen corresponding path program 1 times [2023-10-12 17:30:29,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:30:29,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229118309] [2023-10-12 17:30:29,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:30:29,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:30:29,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:30:29,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-10-12 17:30:29,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-10-12 17:30:29,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229118309] [2023-10-12 17:30:29,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [229118309] provided 1 perfect and 0 imperfect interpolant sequences [2023-10-12 17:30:29,186 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-10-12 17:30:29,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-10-12 17:30:29,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691737804] [2023-10-12 17:30:29,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-10-12 17:30:29,188 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-10-12 17:30:29,189 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:30:29,189 INFO L85 PathProgramCache]: Analyzing trace with hash 4193, now seen corresponding path program 1 times [2023-10-12 17:30:29,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:30:29,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999743721] [2023-10-12 17:30:29,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:30:29,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:30:29,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:30:29,194 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:30:29,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:30:29,198 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:30:29,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-10-12 17:30:29,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-10-12 17:30:29,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-10-12 17:30:29,225 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 2608 transitions, 19104 flow. Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 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) [2023-10-12 17:30:29,225 INFO L124 encePairwiseOnDemand]: Subtrahend is not yet constructed. Will not use universal subtrahend loopers optimization. [2023-10-12 17:30:29,226 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-10-12 17:30:29,334 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2023-10-12 17:30:29,369 INFO L124 PetriNetUnfolderBase]: 455/686 cut-off events. [2023-10-12 17:30:29,369 INFO L125 PetriNetUnfolderBase]: For 150/150 co-relation queries the response was YES. [2023-10-12 17:30:29,370 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2940 conditions, 686 events. 455/686 cut-off events. For 150/150 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 2505 event pairs, 8 based on Foata normal form. 34/418 useless extension candidates. Maximal degree in co-relation 2172. Up to 578 conditions per place. [2023-10-12 17:30:29,374 INFO L140 encePairwiseOnDemand]: 42/46 looper letters, 169 selfloop transitions, 6 changer transitions 45/220 dead transitions. [2023-10-12 17:30:29,374 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 220 transitions, 1964 flow [2023-10-12 17:30:29,374 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 38 places, 220 transitions, 1964 flow [2023-10-12 17:30:29,401 INFO L124 PetriNetUnfolderBase]: 455/686 cut-off events. [2023-10-12 17:30:29,401 INFO L125 PetriNetUnfolderBase]: For 150/150 co-relation queries the response was YES. [2023-10-12 17:30:29,402 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2940 conditions, 686 events. 455/686 cut-off events. For 150/150 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 2505 event pairs, 8 based on Foata normal form. 0/384 useless extension candidates. Maximal degree in co-relation 2172. Up to 578 conditions per place. [2023-10-12 17:30:29,402 INFO L82 GeneralOperation]: Start removeDeadBuchi. Operand has 38 places, 220 transitions, 1964 flow [2023-10-12 17:30:29,404 INFO L88 GeneralOperation]: Finished RemoveDeadBuchi, result has has 38 places, 220 transitions, 1964 flow [2023-10-12 17:30:29,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-10-12 17:30:29,405 INFO L430 stractBuchiCegarLoop]: Abstraction has has 38 places, 220 transitions, 1964 flow [2023-10-12 17:30:29,405 INFO L337 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-10-12 17:30:29,405 INFO L84 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 38 places, 220 transitions, 1964 flow [2023-10-12 17:30:29,419 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-10-12 17:30:29,419 INFO L124 PetriNetUnfolderBase]: 190/280 cut-off events. [2023-10-12 17:30:29,419 INFO L125 PetriNetUnfolderBase]: For 38/38 co-relation queries the response was YES. [2023-10-12 17:30:29,419 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty language is not empty [2023-10-12 17:30:29,420 INFO L748 eck$LassoCheckResult]: Stem: 41#[$Ultimate##0]true [105] $Ultimate##0-->L60: Formula: (and (<= 0 v_M_16) (= v_M_16 v_k_19) (= v_i_21 v_j_21) (< v_M_16 v_N_18) (= v_C1_19 v_C2_29) (= v_i_21 0)) InVars {C1=v_C1_19, C2=v_C2_29, N=v_N_18, M=v_M_16, k=v_k_19, j=v_j_21, i=v_i_21} OutVars{C1=v_C1_19, C2=v_C2_29, N=v_N_18, M=v_M_16, k=v_k_19, j=v_j_21, i=v_i_21} AuxVars[] AssignedVars[] 43#[L60]true [83] L60-->L23-1: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0] 45#[L23-1, L60-1]true [86] L60-1-->L34-1: 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] 90#[L23-1, L61, L34-1]true [89] L61-->L45-1: 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] 166#[L23-1, L62, L34-1, L45-1]true [101] L45-1-->L45-1: Formula: (and (< v_k_16 v_N_14) (= v_k_15 (+ v_k_16 1)) (= v_C2_21 (store v_C2_22 v_k_16 (+ (select v_B_14 v_k_16) (select v_A_14 v_k_16))))) InVars {A=v_A_14, C2=v_C2_22, N=v_N_14, k=v_k_16, B=v_B_14} OutVars{A=v_A_14, C2=v_C2_21, N=v_N_14, k=v_k_15, B=v_B_14} AuxVars[] AssignedVars[C2, k] 166#[L23-1, L62, L34-1, L45-1]true [101] L45-1-->L45-1: Formula: (and (< v_k_16 v_N_14) (= v_k_15 (+ v_k_16 1)) (= v_C2_21 (store v_C2_22 v_k_16 (+ (select v_B_14 v_k_16) (select v_A_14 v_k_16))))) InVars {A=v_A_14, C2=v_C2_22, N=v_N_14, k=v_k_16, B=v_B_14} OutVars{A=v_A_14, C2=v_C2_21, N=v_N_14, k=v_k_15, B=v_B_14} AuxVars[] AssignedVars[C2, k] 166#[L23-1, L62, L34-1, L45-1]true [101] L45-1-->L45-1: Formula: (and (< v_k_16 v_N_14) (= v_k_15 (+ v_k_16 1)) (= v_C2_21 (store v_C2_22 v_k_16 (+ (select v_B_14 v_k_16) (select v_A_14 v_k_16))))) InVars {A=v_A_14, C2=v_C2_22, N=v_N_14, k=v_k_16, B=v_B_14} OutVars{A=v_A_14, C2=v_C2_21, N=v_N_14, k=v_k_15, B=v_B_14} AuxVars[] AssignedVars[C2, k] 166#[L23-1, L62, L34-1, L45-1]true [2023-10-12 17:30:29,420 INFO L750 eck$LassoCheckResult]: Loop: 166#[L23-1, L62, L34-1, L45-1]true [101] L45-1-->L45-1: Formula: (and (< v_k_16 v_N_14) (= v_k_15 (+ v_k_16 1)) (= v_C2_21 (store v_C2_22 v_k_16 (+ (select v_B_14 v_k_16) (select v_A_14 v_k_16))))) InVars {A=v_A_14, C2=v_C2_22, N=v_N_14, k=v_k_16, B=v_B_14} OutVars{A=v_A_14, C2=v_C2_21, N=v_N_14, k=v_k_15, B=v_B_14} AuxVars[] AssignedVars[C2, k] 166#[L23-1, L62, L34-1, L45-1]true [101] L45-1-->L45-1: Formula: (and (< v_k_16 v_N_14) (= v_k_15 (+ v_k_16 1)) (= v_C2_21 (store v_C2_22 v_k_16 (+ (select v_B_14 v_k_16) (select v_A_14 v_k_16))))) InVars {A=v_A_14, C2=v_C2_22, N=v_N_14, k=v_k_16, B=v_B_14} OutVars{A=v_A_14, C2=v_C2_21, N=v_N_14, k=v_k_15, B=v_B_14} AuxVars[] AssignedVars[C2, k] 166#[L23-1, L62, L34-1, L45-1]true [2023-10-12 17:30:29,420 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:30:29,420 INFO L85 PathProgramCache]: Analyzing trace with hash -1395156937, now seen corresponding path program 1 times [2023-10-12 17:30:29,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:30:29,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253173787] [2023-10-12 17:30:29,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:30:29,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:30:29,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:30:29,427 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:30:29,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:30:29,433 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:30:29,434 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:30:29,434 INFO L85 PathProgramCache]: Analyzing trace with hash 4193, now seen corresponding path program 2 times [2023-10-12 17:30:29,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:30:29,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722378982] [2023-10-12 17:30:29,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:30:29,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:30:29,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:30:29,437 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:30:29,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:30:29,440 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:30:29,440 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:30:29,440 INFO L85 PathProgramCache]: Analyzing trace with hash -716016873, now seen corresponding path program 2 times [2023-10-12 17:30:29,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:30:29,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519604223] [2023-10-12 17:30:29,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:30:29,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:30:29,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:30:29,448 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:30:29,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:30:29,456 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:30:29,603 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:30:29,604 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:30:29,604 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:30:29,604 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:30:29,604 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-10-12 17:30:29,604 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:30:29,604 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:30:29,604 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:30:29,604 INFO L133 ssoRankerPreferences]: Filename of dumped script: vector-add.wvr.bpl_BEv2_Iteration4_Lasso [2023-10-12 17:30:29,604 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:30:29,604 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:30:29,605 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:30:29,607 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:30:29,609 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:30:29,710 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:30:29,712 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:30:29,713 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:30:29,715 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:30:29,717 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:30:29,718 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:30:29,863 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:30:29,863 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-10-12 17:30:29,863 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:30:29,863 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:30:29,864 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:30:29,881 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2023-10-12 17:30:29,882 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 [2023-10-12 17:30:29,888 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:30:29,888 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:30:29,889 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:30:29,889 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:30:29,890 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:30:29,890 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:30:29,908 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:30:29,915 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2023-10-12 17:30:29,916 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:30:29,916 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:30:29,917 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:30:29,919 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2023-10-12 17:30:29,920 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 [2023-10-12 17:30:29,926 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:30:29,926 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:30:29,926 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:30:29,926 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:30:29,928 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:30:29,928 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:30:29,943 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:30:29,945 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2023-10-12 17:30:29,946 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:30:29,946 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:30:29,961 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:30:29,965 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2023-10-12 17:30:29,966 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 [2023-10-12 17:30:29,972 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:30:29,972 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:30:29,973 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:30:29,973 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:30:29,979 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:30:29,979 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:30:29,994 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-10-12 17:30:30,006 INFO L443 ModelExtractionUtils]: Simplification made 10 calls to the SMT solver. [2023-10-12 17:30:30,006 INFO L444 ModelExtractionUtils]: 3 out of 13 variables were initially zero. Simplification set additionally 7 variables to zero. [2023-10-12 17:30:30,006 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:30:30,006 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:30:30,029 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:30:30,070 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2023-10-12 17:30:30,070 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-10-12 17:30:30,078 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2023-10-12 17:30:30,078 INFO L513 LassoAnalysis]: Proved termination. [2023-10-12 17:30:30,078 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(k, N) = -1*k + 1*N Supporting invariants [] [2023-10-12 17:30:30,082 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2023-10-12 17:30:30,084 INFO L156 tatePredicateManager]: 1 out of 1 supporting invariants were superfluous and have been removed [2023-10-12 17:30:30,092 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:30:30,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:30:30,103 INFO L262 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 2 conjunts are in the unsatisfiable core [2023-10-12 17:30:30,104 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:30:30,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:30:30,116 INFO L262 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjunts are in the unsatisfiable core [2023-10-12 17:30:30,117 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:30:30,124 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-10-12 17:30:30,124 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 [2023-10-12 17:30:30,124 INFO L74 BuchiComplementNCSB]: Start buchiComplementNCSB. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-10-12 17:30:30,225 INFO L82 BuchiComplementNCSB]: Finished buchiComplementNCSB. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 7 states and 354 transitions. [2023-10-12 17:30:30,226 INFO L79 BuchiIntersect]: Starting Intersection [2023-10-12 17:30:30,238 INFO L86 BuchiIntersect]: Exiting Intersection [2023-10-12 17:30:30,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-10-12 17:30:30,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-10-12 17:30:30,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 230 transitions. [2023-10-12 17:30:30,246 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 230 transitions. Stem has 7 letters. Loop has 2 letters. [2023-10-12 17:30:30,246 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:30:30,246 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 230 transitions. Stem has 9 letters. Loop has 2 letters. [2023-10-12 17:30:30,246 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:30:30,246 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 230 transitions. Stem has 7 letters. Loop has 4 letters. [2023-10-12 17:30:30,247 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:30:30,247 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 52 places, 3326 transitions, 36524 flow [2023-10-12 17:30:30,317 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2023-10-12 17:30:30,611 INFO L124 PetriNetUnfolderBase]: 1380/2078 cut-off events. [2023-10-12 17:30:30,611 INFO L125 PetriNetUnfolderBase]: For 542/542 co-relation queries the response was YES. [2023-10-12 17:30:30,613 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10799 conditions, 2078 events. 1380/2078 cut-off events. For 542/542 co-relation queries the response was YES. Maximal size of possible extension queue 180. Compared 9771 event pairs, 8 based on Foata normal form. 0/1137 useless extension candidates. Maximal degree in co-relation 7055. Up to 1788 conditions per place. [2023-10-12 17:30:30,613 INFO L82 GeneralOperation]: Start removeDeadBuchi. Operand has 52 places, 3326 transitions, 36524 flow [2023-10-12 17:30:30,645 INFO L88 GeneralOperation]: Finished RemoveDeadBuchi, result has has 52 places, 3326 transitions, 36524 flow [2023-10-12 17:30:30,645 INFO L430 stractBuchiCegarLoop]: Abstraction has has 52 places, 3326 transitions, 36524 flow [2023-10-12 17:30:30,645 INFO L337 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2023-10-12 17:30:30,646 INFO L84 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 52 places, 3326 transitions, 36524 flow [2023-10-12 17:30:31,001 INFO L124 PetriNetUnfolderBase]: 1380/2078 cut-off events. [2023-10-12 17:30:31,001 INFO L125 PetriNetUnfolderBase]: For 542/542 co-relation queries the response was YES. [2023-10-12 17:30:31,001 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty language is empty [2023-10-12 17:30:31,005 INFO L201 PluginConnector]: Adding new model vector-add.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 12.10 05:30:31 BoogieIcfgContainer [2023-10-12 17:30:31,005 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-10-12 17:30:31,006 INFO L158 Benchmark]: Toolchain (without parser) took 4305.03ms. Allocated memory was 187.7MB in the beginning and 367.0MB in the end (delta: 179.3MB). Free memory was 142.7MB in the beginning and 186.5MB in the end (delta: -43.7MB). Peak memory consumption was 200.6MB. Max. memory is 8.0GB. [2023-10-12 17:30:31,006 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.26ms. Allocated memory is still 187.7MB. Free memory is still 143.9MB. There was no memory consumed. Max. memory is 8.0GB. [2023-10-12 17:30:31,006 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.56ms. Allocated memory is still 187.7MB. Free memory was 142.7MB in the beginning and 141.2MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-10-12 17:30:31,006 INFO L158 Benchmark]: Boogie Preprocessor took 15.86ms. Allocated memory is still 187.7MB. Free memory was 141.2MB in the beginning and 140.2MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-10-12 17:30:31,007 INFO L158 Benchmark]: RCFGBuilder took 225.32ms. Allocated memory is still 187.7MB. Free memory was 140.0MB in the beginning and 130.1MB in the end (delta: 9.9MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2023-10-12 17:30:31,007 INFO L158 Benchmark]: BuchiAutomizer took 4033.80ms. Allocated memory was 187.7MB in the beginning and 367.0MB in the end (delta: 179.3MB). Free memory was 130.0MB in the beginning and 186.5MB in the end (delta: -56.5MB). Peak memory consumption was 188.1MB. Max. memory is 8.0GB. [2023-10-12 17:30:31,008 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 0.26ms. Allocated memory is still 187.7MB. Free memory is still 143.9MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 26.56ms. Allocated memory is still 187.7MB. Free memory was 142.7MB in the beginning and 141.2MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 15.86ms. Allocated memory is still 187.7MB. Free memory was 141.2MB in the beginning and 140.2MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 225.32ms. Allocated memory is still 187.7MB. Free memory was 140.0MB in the beginning and 130.1MB in the end (delta: 9.9MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * BuchiAutomizer took 4033.80ms. Allocated memory was 187.7MB in the beginning and 367.0MB in the end (delta: 179.3MB). Free memory was 130.0MB in the beginning and 186.5MB in the end (delta: -56.5MB). Peak memory consumption was 188.1MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (1 trivial, 3 deterministic, 0 nondeterministic). One deterministic module has affine ranking function N + -1 * i and consists of 4 locations. One deterministic module has affine ranking function M + -1 * j and consists of 5 locations. One deterministic module has affine ranking function -1 * k + N and consists of 5 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.9s and 5 iterations. TraceHistogramMax:0. Analysis of lassos took 1.9s. Construction of modules took 0.1s. Büchi inclusion checks took 0.5s. Highest rank in rank-based complementation 0. Minimization of det autom 0. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [3, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 2/2 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 335 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 332 mSDsluCounter, 273 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 119 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 384 IncrementalHoareTripleChecker+Invalid, 396 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 154 mSDtfsCounter, 384 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU1 SILI0 SILT0 lasso3 LassoPreprocessingBenchmarks: Lassos: inital77 mio100 ax100 hnf100 lsp82 ukn69 mio100 lsp74 div100 bol100 ite100 ukn100 eq182 hnf90 smp100 dnf100 smp100 tf100 neg100 sie107 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 57ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.3s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.3s, 34 PlacesBefore, 22 PlacesAfterwards, 27 TransitionsBefore, 15 TransitionsAfterwards, 144 CoEnabledTransitionPairs, 3 FixpointIterations, 7 TrivialSequentialCompositions, 6 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 13 TotalNumberOfCompositions, 124 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 124, independent: 124, independent conditional: 0, independent unconditional: 124, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 82, independent: 82, independent conditional: 0, independent unconditional: 82, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 82, independent: 82, independent conditional: 0, independent unconditional: 82, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 124, independent: 42, independent conditional: 0, independent unconditional: 42, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 82, unknown conditional: 0, unknown unconditional: 82] , Statistics on independence cache: Total cache size (in pairs): 18, Positive cache size: 18, Positive conditional cache size: 0, Positive unconditional cache size: 18, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 RESULT: Ultimate proved your program to be correct! [2023-10-12 17:30:31,041 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...