/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/mts-array.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.fs.rabin-petrinet-4c29625-m [2023-10-12 17:30:00,010 INFO L172 SettingsManager]: Resetting all preferences to default values... [2023-10-12 17:30:00,074 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 17:30:00,100 INFO L114 SettingsManager]: Preferences different from defaults after loading the file: [2023-10-12 17:30:00,100 INFO L135 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-10-12 17:30:00,101 INFO L137 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-10-12 17:30:00,102 INFO L135 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-10-12 17:30:00,102 INFO L137 SettingsManager]: * Create parallel compositions if possible=false [2023-10-12 17:30:00,103 INFO L137 SettingsManager]: * Use SBE=true [2023-10-12 17:30:00,106 INFO L135 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-10-12 17:30:00,106 INFO L137 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-10-12 17:30:00,106 INFO L137 SettingsManager]: * Use old map elimination=false [2023-10-12 17:30:00,106 INFO L137 SettingsManager]: * Use external solver (rank synthesis)=false [2023-10-12 17:30:00,107 INFO L137 SettingsManager]: * Use only trivial implications for array writes=true [2023-10-12 17:30:00,108 INFO L137 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-10-12 17:30:00,108 INFO L135 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-10-12 17:30:00,108 INFO L137 SettingsManager]: * sizeof long=4 [2023-10-12 17:30:00,108 INFO L137 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-10-12 17:30:00,108 INFO L137 SettingsManager]: * Overapproximate operations on floating types=true [2023-10-12 17:30:00,108 INFO L137 SettingsManager]: * sizeof POINTER=4 [2023-10-12 17:30:00,109 INFO L137 SettingsManager]: * Check division by zero=IGNORE [2023-10-12 17:30:00,110 INFO L137 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-10-12 17:30:00,110 INFO L137 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-10-12 17:30:00,110 INFO L137 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-10-12 17:30:00,110 INFO L137 SettingsManager]: * sizeof long double=12 [2023-10-12 17:30:00,110 INFO L137 SettingsManager]: * Check if freed pointer was valid=false [2023-10-12 17:30:00,110 INFO L137 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-10-12 17:30:00,110 INFO L137 SettingsManager]: * Use constant arrays=true [2023-10-12 17:30:00,111 INFO L137 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-10-12 17:30:00,111 INFO L135 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-10-12 17:30:00,111 INFO L137 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-10-12 17:30:00,112 INFO L135 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-10-12 17:30:00,112 INFO L137 SettingsManager]: * Trace refinement strategy=CAMEL [2023-10-12 17:30:00,113 INFO L135 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-10-12 17:30:00,113 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: Automaton type for concurrent programs -> BUCHI_PETRI_NET [2023-10-12 17:30:00,311 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-10-12 17:30:00,327 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-10-12 17:30:00,328 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-10-12 17:30:00,329 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2023-10-12 17:30:00,331 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2023-10-12 17:30:00,331 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/mts-array.wvr.bpl [2023-10-12 17:30:00,332 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/mts-array.wvr.bpl' [2023-10-12 17:30:00,358 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-10-12 17:30:00,360 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2023-10-12 17:30:00,360 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-10-12 17:30:00,361 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-10-12 17:30:00,361 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-10-12 17:30:00,369 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "mts-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:30:00" (1/1) ... [2023-10-12 17:30:00,376 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "mts-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:30:00" (1/1) ... [2023-10-12 17:30:00,380 INFO L138 Inliner]: procedures = 4, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2023-10-12 17:30:00,381 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-10-12 17:30:00,382 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-10-12 17:30:00,383 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-10-12 17:30:00,383 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-10-12 17:30:00,388 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "mts-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:30:00" (1/1) ... [2023-10-12 17:30:00,388 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "mts-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:30:00" (1/1) ... [2023-10-12 17:30:00,390 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "mts-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:30:00" (1/1) ... [2023-10-12 17:30:00,390 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "mts-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:30:00" (1/1) ... [2023-10-12 17:30:00,397 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "mts-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:30:00" (1/1) ... [2023-10-12 17:30:00,400 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "mts-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:30:00" (1/1) ... [2023-10-12 17:30:00,401 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "mts-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:30:00" (1/1) ... [2023-10-12 17:30:00,401 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "mts-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:30:00" (1/1) ... [2023-10-12 17:30:00,405 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-10-12 17:30:00,406 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-10-12 17:30:00,406 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-10-12 17:30:00,406 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-10-12 17:30:00,407 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "mts-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:30:00" (1/1) ... [2023-10-12 17:30:00,412 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:30:00,423 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:30:00,450 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 17:30:00,468 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 17:30:00,489 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2023-10-12 17:30:00,489 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-10-12 17:30:00,492 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-10-12 17:30:00,492 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2023-10-12 17:30:00,493 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-10-12 17:30:00,493 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-10-12 17:30:00,493 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2023-10-12 17:30:00,493 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-10-12 17:30:00,493 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-10-12 17:30:00,494 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2023-10-12 17:30:00,494 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-10-12 17:30:00,494 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-10-12 17:30:00,495 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 17:30:00,537 INFO L236 CfgBuilder]: Building ICFG [2023-10-12 17:30:00,539 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-10-12 17:30:00,641 INFO L277 CfgBuilder]: Performing block encoding [2023-10-12 17:30:00,657 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-10-12 17:30:00,657 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-10-12 17:30:00,659 INFO L201 PluginConnector]: Adding new model mts-array.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:30:00 BoogieIcfgContainer [2023-10-12 17:30:00,659 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-10-12 17:30:00,660 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-10-12 17:30:00,660 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-10-12 17:30:00,663 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-10-12 17:30:00,663 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-10-12 17:30:00,663 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "mts-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:30:00" (1/2) ... [2023-10-12 17:30:00,664 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@dd8bc0e and model type mts-array.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 12.10 05:30:00, skipping insertion in model container [2023-10-12 17:30:00,670 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-10-12 17:30:00,670 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "mts-array.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:30:00" (2/2) ... [2023-10-12 17:30:00,671 INFO L332 chiAutomizerObserver]: Analyzing ICFG mts-array.wvr.bpl [2023-10-12 17:30:00,717 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-10-12 17:30:00,736 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 36 places, 32 transitions, 88 flow [2023-10-12 17:30:00,753 INFO L124 PetriNetUnfolderBase]: 3/26 cut-off events. [2023-10-12 17:30:00,753 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-10-12 17:30:00,767 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39 conditions, 26 events. 3/26 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. 0/22 useless extension candidates. Maximal degree in co-relation 18. Up to 2 conditions per place. [2023-10-12 17:30:00,768 INFO L82 GeneralOperation]: Start removeDead. Operand has 36 places, 32 transitions, 88 flow [2023-10-12 17:30:00,771 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 33 places, 26 transitions, 70 flow [2023-10-12 17:30:00,773 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-10-12 17:30:00,785 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 33 places, 26 transitions, 70 flow [2023-10-12 17:30:00,786 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 33 places, 26 transitions, 70 flow [2023-10-12 17:30:00,787 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 33 places, 26 transitions, 70 flow [2023-10-12 17:30:00,793 INFO L124 PetriNetUnfolderBase]: 3/26 cut-off events. [2023-10-12 17:30:00,793 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-10-12 17:30:00,793 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39 conditions, 26 events. 3/26 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. 0/22 useless extension candidates. Maximal degree in co-relation 18. Up to 2 conditions per place. [2023-10-12 17:30:00,794 INFO L119 LiptonReduction]: Number of co-enabled transitions 144 [2023-10-12 17:30:01,050 INFO L134 LiptonReduction]: Checked pairs total: 96 [2023-10-12 17:30:01,051 INFO L136 LiptonReduction]: Total number of compositions: 12 [2023-10-12 17:30:01,061 INFO L305 stractBuchiCegarLoop]: Interprodecural is true [2023-10-12 17:30:01,061 INFO L306 stractBuchiCegarLoop]: Hoare is false [2023-10-12 17:30:01,062 INFO L307 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-10-12 17:30:01,062 INFO L308 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-10-12 17:30:01,062 INFO L309 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-10-12 17:30:01,062 INFO L310 stractBuchiCegarLoop]: Difference is false [2023-10-12 17:30:01,062 INFO L311 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-10-12 17:30:01,062 INFO L315 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiPetriNetCegarLoop ======== [2023-10-12 17:30:01,063 INFO L84 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 22 places, 15 transitions, 48 flow [2023-10-12 17:30:01,067 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-10-12 17:30:01,067 INFO L124 PetriNetUnfolderBase]: 0/2 cut-off events. [2023-10-12 17:30:01,067 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-10-12 17:30:01,069 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty language is not empty [2023-10-12 17:30:01,071 INFO L337 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-10-12 17:30:01,071 INFO L84 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 22 places, 15 transitions, 48 flow [2023-10-12 17:30:01,073 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-10-12 17:30:01,074 INFO L124 PetriNetUnfolderBase]: 0/2 cut-off events. [2023-10-12 17:30:01,074 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-10-12 17:30:01,074 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty language is not empty [2023-10-12 17:30:01,077 INFO L748 eck$LassoCheckResult]: Stem: 40#[$Ultimate##0]true [103] $Ultimate##0-->L61: Formula: (and (= v_i_19 v_sum_23) (= v_i_19 v_mts1_19) (< v_M_14 v_N_16) (= v_i_19 0) (<= 0 v_M_14) (= v_i_19 v_mts2_19) (= v_i_19 v_j_19) (= v_M_14 v_k_24) (= v_i_19 v_mts3_19)) InVars {sum=v_sum_23, N=v_N_16, M=v_M_14, k=v_k_24, j=v_j_19, i=v_i_19, mts1=v_mts1_19, mts3=v_mts3_19, mts2=v_mts2_19} OutVars{sum=v_sum_23, N=v_N_16, M=v_M_14, k=v_k_24, j=v_j_19, i=v_i_19, mts1=v_mts1_19, mts3=v_mts3_19, mts2=v_mts2_19} AuxVars[] AssignedVars[] 42#[L61]true [83] L61-->L24-1: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0] 44#[L61-1, L24-1]true [2023-10-12 17:30:01,077 INFO L750 eck$LassoCheckResult]: Loop: 44#[L61-1, L24-1]true [101] L24-1-->L24-1: Formula: (and (= (let ((.cse0 (+ (select v_A_17 v_i_16) v_mts1_16))) (ite (< .cse0 0) 0 .cse0)) v_mts1_15) (= v_i_15 (+ v_i_16 1)) (< v_i_16 v_N_12)) InVars {A=v_A_17, N=v_N_12, i=v_i_16, mts1=v_mts1_16} OutVars{A=v_A_17, N=v_N_12, i=v_i_15, mts1=v_mts1_15} AuxVars[] AssignedVars[i, mts1] 44#[L61-1, L24-1]true [2023-10-12 17:30:01,082 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:30:01,082 INFO L85 PathProgramCache]: Analyzing trace with hash 4237, now seen corresponding path program 1 times [2023-10-12 17:30:01,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:30:01,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462736627] [2023-10-12 17:30:01,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:30:01,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:30:01,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:30:01,144 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:30:01,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:30:01,161 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:30:01,164 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:30:01,164 INFO L85 PathProgramCache]: Analyzing trace with hash 132, now seen corresponding path program 1 times [2023-10-12 17:30:01,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:30:01,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34225730] [2023-10-12 17:30:01,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:30:01,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:30:01,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:30:01,188 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:30:01,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:30:01,207 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:30:01,208 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:30:01,208 INFO L85 PathProgramCache]: Analyzing trace with hash 131448, now seen corresponding path program 1 times [2023-10-12 17:30:01,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:30:01,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69353045] [2023-10-12 17:30:01,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:30:01,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:30:01,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:30:01,216 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:30:01,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:30:01,225 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:30:01,345 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:30:01,346 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:30:01,346 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:30:01,346 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:30:01,346 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-10-12 17:30:01,346 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:30:01,346 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:30:01,346 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:30:01,346 INFO L133 ssoRankerPreferences]: Filename of dumped script: mts-array.wvr.bpl_BEv2_Iteration1_Lasso [2023-10-12 17:30:01,346 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:30:01,346 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:30:01,358 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 17:30:01,368 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 17:30:01,371 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 17:30:01,374 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 17:30:01,376 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 17:30:01,378 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 17:30:01,527 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:30:01,530 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-10-12 17:30:01,531 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:30:01,531 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:30:01,533 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 17:30:01,540 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 17:30:01,547 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:30:01,547 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:30:01,547 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:30:01,547 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:30:01,550 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:30:01,550 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:30:01,554 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 17:30:01,555 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:30:01,593 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 17:30:01,593 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:30:01,593 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:30:01,594 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 17:30:01,609 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 17:30:01,609 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 17:30:01,616 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:30:01,617 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:30:01,617 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:30:01,617 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:30:01,619 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:30:01,619 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:30:01,634 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:30:01,654 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 17:30:01,655 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:30:01,655 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:30:01,656 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 17:30:01,658 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 17:30:01,660 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 17:30:01,666 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:30:01,667 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:30:01,667 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:30:01,667 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:30:01,669 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:30:01,669 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:30:01,685 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:30:01,703 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2023-10-12 17:30:01,703 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:30:01,703 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:30:01,705 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 17:30:01,707 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 17:30:01,709 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 17:30:01,715 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:30:01,716 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:30:01,716 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:30:01,716 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:30:01,721 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:30:01,721 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:30:01,744 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:30:01,750 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 17:30:01,751 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:30:01,751 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:30:01,766 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 17:30:01,768 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 17:30:01,769 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 17:30:01,776 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:30:01,776 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:30:01,776 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:30:01,776 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:30:01,778 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:30:01,778 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:30:01,793 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:30:01,798 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2023-10-12 17:30:01,799 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:30:01,799 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:30:01,800 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 17:30:01,835 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 17:30:01,836 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 17:30:01,843 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:30:01,843 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:30:01,843 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2023-10-12 17:30:01,843 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:30:01,849 INFO L401 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2023-10-12 17:30:01,850 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2023-10-12 17:30:01,873 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:30:01,879 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 17:30:01,879 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:30:01,880 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:30:01,881 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 17:30:01,882 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 17:30:01,885 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 17:30:01,893 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:30:01,894 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:30:01,894 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:30:01,894 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:30:01,898 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:30:01,898 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:30:01,925 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-10-12 17:30:01,934 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2023-10-12 17:30:01,934 INFO L444 ModelExtractionUtils]: 9 out of 16 variables were initially zero. Simplification set additionally 4 variables to zero. [2023-10-12 17:30:01,935 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:30:01,935 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:30:01,945 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 17:30:01,946 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 17:30:01,981 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-10-12 17:30:01,995 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2023-10-12 17:30:01,995 INFO L513 LassoAnalysis]: Proved termination. [2023-10-12 17:30:01,996 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(i, N) = -1*i + 1*N Supporting invariants [] [2023-10-12 17:30:01,999 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 17:30:02,001 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-10-12 17:30:02,024 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:30:02,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:30:02,036 INFO L262 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 2 conjunts are in the unsatisfiable core [2023-10-12 17:30:02,037 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:30:02,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:30:02,057 WARN L260 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2023-10-12 17:30:02,058 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:30:02,058 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 17:30:02,092 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 17:30:02,094 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 17:30:02,177 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 256 transitions. [2023-10-12 17:30:02,178 INFO L79 BuchiIntersect]: Starting Intersection [2023-10-12 17:30:02,180 INFO L86 BuchiIntersect]: Exiting Intersection [2023-10-12 17:30:02,181 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 17:30:02,184 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 17:30:02,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 176 transitions. [2023-10-12 17:30:02,188 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 176 transitions. Stem has 2 letters. Loop has 1 letters. [2023-10-12 17:30:02,188 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:30:02,188 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 176 transitions. Stem has 3 letters. Loop has 1 letters. [2023-10-12 17:30:02,188 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:30:02,188 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 176 transitions. Stem has 2 letters. Loop has 2 letters. [2023-10-12 17:30:02,188 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:30:02,189 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 32 places, 172 transitions, 904 flow [2023-10-12 17:30:02,208 INFO L124 PetriNetUnfolderBase]: 135/207 cut-off events. [2023-10-12 17:30:02,209 INFO L125 PetriNetUnfolderBase]: For 48/48 co-relation queries the response was YES. [2023-10-12 17:30:02,209 INFO L83 FinitePrefix]: Finished finitePrefix Result has 486 conditions, 207 events. 135/207 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 554 event pairs, 17 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 17:30:02,210 INFO L82 GeneralOperation]: Start removeDeadBuchi. Operand has 32 places, 172 transitions, 904 flow [2023-10-12 17:30:02,212 INFO L88 GeneralOperation]: Finished RemoveDeadBuchi, result has has 32 places, 172 transitions, 904 flow [2023-10-12 17:30:02,212 INFO L430 stractBuchiCegarLoop]: Abstraction has has 32 places, 172 transitions, 904 flow [2023-10-12 17:30:02,213 INFO L337 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-10-12 17:30:02,213 INFO L84 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 32 places, 172 transitions, 904 flow [2023-10-12 17:30:02,217 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-10-12 17:30:02,217 INFO L124 PetriNetUnfolderBase]: 29/44 cut-off events. [2023-10-12 17:30:02,217 INFO L125 PetriNetUnfolderBase]: For 9/9 co-relation queries the response was YES. [2023-10-12 17:30:02,217 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty language is not empty [2023-10-12 17:30:02,218 INFO L748 eck$LassoCheckResult]: Stem: 40#[$Ultimate##0]true [103] $Ultimate##0-->L61: Formula: (and (= v_i_19 v_sum_23) (= v_i_19 v_mts1_19) (< v_M_14 v_N_16) (= v_i_19 0) (<= 0 v_M_14) (= v_i_19 v_mts2_19) (= v_i_19 v_j_19) (= v_M_14 v_k_24) (= v_i_19 v_mts3_19)) InVars {sum=v_sum_23, N=v_N_16, M=v_M_14, k=v_k_24, j=v_j_19, i=v_i_19, mts1=v_mts1_19, mts3=v_mts3_19, mts2=v_mts2_19} OutVars{sum=v_sum_23, N=v_N_16, M=v_M_14, k=v_k_24, j=v_j_19, i=v_i_19, mts1=v_mts1_19, mts3=v_mts3_19, mts2=v_mts2_19} AuxVars[] AssignedVars[] 42#[L61]true [83] L61-->L24-1: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0] 44#[L61-1, L24-1]true [86] L61-1-->L35-1: Formula: (and (= 2 v_thread2Thread1of1ForFork1_thidvar1_2) (= 2 v_thread2Thread1of1ForFork1_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_2, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_thidvar0, thread2Thread1of1ForFork1_thidvar1] 89#[L62, L24-1, L35-1]true [2023-10-12 17:30:02,218 INFO L750 eck$LassoCheckResult]: Loop: 89#[L62, L24-1, L35-1]true [99] L35-1-->L35-1: Formula: (and (= v_j_15 (+ v_j_16 1)) (= (let ((.cse0 (+ (select v_A_15 v_j_16) v_mts2_16))) (ite (< .cse0 0) 0 .cse0)) v_mts2_15) (< v_j_16 v_M_10)) InVars {A=v_A_15, M=v_M_10, j=v_j_16, mts2=v_mts2_16} OutVars{A=v_A_15, M=v_M_10, j=v_j_15, mts2=v_mts2_15} AuxVars[] AssignedVars[j, mts2] 89#[L62, L24-1, L35-1]true [99] L35-1-->L35-1: Formula: (and (= v_j_15 (+ v_j_16 1)) (= (let ((.cse0 (+ (select v_A_15 v_j_16) v_mts2_16))) (ite (< .cse0 0) 0 .cse0)) v_mts2_15) (< v_j_16 v_M_10)) InVars {A=v_A_15, M=v_M_10, j=v_j_16, mts2=v_mts2_16} OutVars{A=v_A_15, M=v_M_10, j=v_j_15, mts2=v_mts2_15} AuxVars[] AssignedVars[j, mts2] 89#[L62, L24-1, L35-1]true [2023-10-12 17:30:02,218 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:30:02,218 INFO L85 PathProgramCache]: Analyzing trace with hash 131433, now seen corresponding path program 1 times [2023-10-12 17:30:02,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:30:02,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293793420] [2023-10-12 17:30:02,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:30:02,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:30:02,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:30:02,223 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:30:02,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:30:02,228 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:30:02,228 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:30:02,228 INFO L85 PathProgramCache]: Analyzing trace with hash 4129, now seen corresponding path program 1 times [2023-10-12 17:30:02,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:30:02,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469694481] [2023-10-12 17:30:02,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:30:02,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:30:02,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:30:02,234 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:30:02,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:30:02,241 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:30:02,242 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:30:02,242 INFO L85 PathProgramCache]: Analyzing trace with hash 126310281, now seen corresponding path program 1 times [2023-10-12 17:30:02,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:30:02,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670619506] [2023-10-12 17:30:02,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:30:02,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:30:02,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:30:02,260 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:30:02,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:30:02,268 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:30:02,311 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 17:30:02,466 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:30:02,466 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:30:02,466 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:30:02,466 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:30:02,466 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-10-12 17:30:02,467 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:30:02,467 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:30:02,467 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:30:02,467 INFO L133 ssoRankerPreferences]: Filename of dumped script: mts-array.wvr.bpl_BEv2_Iteration2_Lasso [2023-10-12 17:30:02,467 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:30:02,467 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:30:02,469 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 17:30:02,472 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 17:30:02,474 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 17:30:02,568 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 17:30:02,572 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 17:30:02,574 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 17:30:02,578 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 17:30:02,581 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 17:30:02,760 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:30:02,760 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-10-12 17:30:02,760 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:30:02,760 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:30:02,769 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 17:30:02,774 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 17:30:02,775 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 17:30:02,781 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:30:02,781 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:30:02,781 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:30:02,781 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:30:02,783 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:30:02,783 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:30:02,797 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:30:02,803 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2023-10-12 17:30:02,804 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:30:02,804 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:30:02,825 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 17:30:02,828 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 17:30:02,829 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 17:30:02,836 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:30:02,836 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:30:02,836 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:30:02,836 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:30:02,837 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:30:02,838 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:30:02,848 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:30:02,855 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2023-10-12 17:30:02,855 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:30:02,855 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:30:02,856 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 17:30:02,858 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 17:30:02,859 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 17:30:02,866 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:30:02,866 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:30:02,866 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:30:02,866 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:30:02,870 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:30:02,870 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:30:02,885 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-10-12 17:30:02,898 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2023-10-12 17:30:02,899 INFO L444 ModelExtractionUtils]: 4 out of 16 variables were initially zero. Simplification set additionally 9 variables to zero. [2023-10-12 17:30:02,899 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:30:02,899 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:30:02,905 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 17:30:02,906 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 17:30:02,908 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-10-12 17:30:02,915 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2023-10-12 17:30:02,915 INFO L513 LassoAnalysis]: Proved termination. [2023-10-12 17:30:02,916 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(M, j) = 1*M - 1*j Supporting invariants [] [2023-10-12 17:30:02,923 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 17:30:02,930 INFO L156 tatePredicateManager]: 1 out of 1 supporting invariants were superfluous and have been removed [2023-10-12 17:30:02,939 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:30:02,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:30:02,950 INFO L262 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 2 conjunts are in the unsatisfiable core [2023-10-12 17:30:02,950 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:30:02,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:30:02,965 INFO L262 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 5 conjunts are in the unsatisfiable core [2023-10-12 17:30:02,966 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:30:02,976 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 17:30:02,976 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 17:30:02,976 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 17:30:03,078 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 338 transitions. [2023-10-12 17:30:03,078 INFO L79 BuchiIntersect]: Starting Intersection [2023-10-12 17:30:03,093 INFO L86 BuchiIntersect]: Exiting Intersection [2023-10-12 17:30:03,094 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 17:30:03,094 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 17:30:03,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 220 transitions. [2023-10-12 17:30:03,095 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 220 transitions. Stem has 3 letters. Loop has 2 letters. [2023-10-12 17:30:03,096 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:30:03,096 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 220 transitions. Stem has 5 letters. Loop has 2 letters. [2023-10-12 17:30:03,096 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:30:03,096 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 220 transitions. Stem has 3 letters. Loop has 4 letters. [2023-10-12 17:30:03,096 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:30:03,096 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 46 places, 2608 transitions, 19104 flow [2023-10-12 17:30:03,160 INFO L124 PetriNetUnfolderBase]: 383/568 cut-off events. [2023-10-12 17:30:03,160 INFO L125 PetriNetUnfolderBase]: For 133/133 co-relation queries the response was YES. [2023-10-12 17:30:03,161 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1875 conditions, 568 events. 383/568 cut-off events. For 133/133 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 2047 event pairs, 12 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 17:30:03,161 INFO L82 GeneralOperation]: Start removeDeadBuchi. Operand has 46 places, 2608 transitions, 19104 flow [2023-10-12 17:30:03,198 INFO L88 GeneralOperation]: Finished RemoveDeadBuchi, result has has 46 places, 2608 transitions, 19104 flow [2023-10-12 17:30:03,199 INFO L430 stractBuchiCegarLoop]: Abstraction has has 46 places, 2608 transitions, 19104 flow [2023-10-12 17:30:03,199 INFO L337 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-10-12 17:30:03,199 INFO L84 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 46 places, 2608 transitions, 19104 flow [2023-10-12 17:30:03,238 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2023-10-12 17:30:03,272 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-10-12 17:30:03,272 INFO L124 PetriNetUnfolderBase]: 154/219 cut-off events. [2023-10-12 17:30:03,272 INFO L125 PetriNetUnfolderBase]: For 33/33 co-relation queries the response was YES. [2023-10-12 17:30:03,272 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty language is not empty [2023-10-12 17:30:03,273 INFO L748 eck$LassoCheckResult]: Stem: 40#[$Ultimate##0]true [103] $Ultimate##0-->L61: Formula: (and (= v_i_19 v_sum_23) (= v_i_19 v_mts1_19) (< v_M_14 v_N_16) (= v_i_19 0) (<= 0 v_M_14) (= v_i_19 v_mts2_19) (= v_i_19 v_j_19) (= v_M_14 v_k_24) (= v_i_19 v_mts3_19)) InVars {sum=v_sum_23, N=v_N_16, M=v_M_14, k=v_k_24, j=v_j_19, i=v_i_19, mts1=v_mts1_19, mts3=v_mts3_19, mts2=v_mts2_19} OutVars{sum=v_sum_23, N=v_N_16, M=v_M_14, k=v_k_24, j=v_j_19, i=v_i_19, mts1=v_mts1_19, mts3=v_mts3_19, mts2=v_mts2_19} AuxVars[] AssignedVars[] 42#[L61]true [83] L61-->L24-1: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0] 44#[L61-1, L24-1]true [86] L61-1-->L35-1: 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] 89#[L62, L24-1, L35-1]true [101] L24-1-->L24-1: Formula: (and (= (let ((.cse0 (+ (select v_A_17 v_i_16) v_mts1_16))) (ite (< .cse0 0) 0 .cse0)) v_mts1_15) (= v_i_15 (+ v_i_16 1)) (< v_i_16 v_N_12)) InVars {A=v_A_17, N=v_N_12, i=v_i_16, mts1=v_mts1_16} OutVars{A=v_A_17, N=v_N_12, i=v_i_15, mts1=v_mts1_15} AuxVars[] AssignedVars[i, mts1] 89#[L62, L24-1, L35-1]true [89] L62-->L46-1: 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] 148#[L46-1, L63, L24-1, L35-1]true [100] L24-1-->thread1EXIT: Formula: (<= v_N_10 v_i_13) InVars {N=v_N_10, i=v_i_13} OutVars{N=v_N_10, i=v_i_13} AuxVars[] AssignedVars[] 150#[L46-1, L63, L35-1, thread1EXIT]true [94] L46-1-->L46-1: Formula: (let ((.cse0 (select v_A_13 v_k_19))) (and (= v_sum_13 (+ v_sum_14 .cse0)) (= v_k_18 (+ v_k_19 1)) (< v_k_19 v_N_8) (= (let ((.cse1 (+ v_mts3_10 .cse0))) (ite (< .cse1 0) 0 .cse1)) v_mts3_9))) InVars {sum=v_sum_14, A=v_A_13, N=v_N_8, k=v_k_19, mts3=v_mts3_10} OutVars{sum=v_sum_13, A=v_A_13, N=v_N_8, k=v_k_18, mts3=v_mts3_9} AuxVars[] AssignedVars[sum, k, mts3] 150#[L46-1, L63, L35-1, thread1EXIT]true [2023-10-12 17:30:03,273 INFO L750 eck$LassoCheckResult]: Loop: 150#[L46-1, L63, L35-1, thread1EXIT]true [94] L46-1-->L46-1: Formula: (let ((.cse0 (select v_A_13 v_k_19))) (and (= v_sum_13 (+ v_sum_14 .cse0)) (= v_k_18 (+ v_k_19 1)) (< v_k_19 v_N_8) (= (let ((.cse1 (+ v_mts3_10 .cse0))) (ite (< .cse1 0) 0 .cse1)) v_mts3_9))) InVars {sum=v_sum_14, A=v_A_13, N=v_N_8, k=v_k_19, mts3=v_mts3_10} OutVars{sum=v_sum_13, A=v_A_13, N=v_N_8, k=v_k_18, mts3=v_mts3_9} AuxVars[] AssignedVars[sum, k, mts3] 150#[L46-1, L63, L35-1, thread1EXIT]true [94] L46-1-->L46-1: Formula: (let ((.cse0 (select v_A_13 v_k_19))) (and (= v_sum_13 (+ v_sum_14 .cse0)) (= v_k_18 (+ v_k_19 1)) (< v_k_19 v_N_8) (= (let ((.cse1 (+ v_mts3_10 .cse0))) (ite (< .cse1 0) 0 .cse1)) v_mts3_9))) InVars {sum=v_sum_14, A=v_A_13, N=v_N_8, k=v_k_19, mts3=v_mts3_10} OutVars{sum=v_sum_13, A=v_A_13, N=v_N_8, k=v_k_18, mts3=v_mts3_9} AuxVars[] AssignedVars[sum, k, mts3] 150#[L46-1, L63, L35-1, thread1EXIT]true [2023-10-12 17:30:03,273 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:30:03,273 INFO L85 PathProgramCache]: Analyzing trace with hash 1125148919, now seen corresponding path program 1 times [2023-10-12 17:30:03,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:30:03,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368050703] [2023-10-12 17:30:03,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:30:03,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:30:03,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:30:03,282 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:30:03,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:30:03,305 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:30:03,305 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:30:03,305 INFO L85 PathProgramCache]: Analyzing trace with hash 3969, now seen corresponding path program 1 times [2023-10-12 17:30:03,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:30:03,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725179243] [2023-10-12 17:30:03,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:30:03,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:30:03,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:30:03,314 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:30:03,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:30:03,319 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:30:03,319 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:30:03,319 INFO L85 PathProgramCache]: Analyzing trace with hash -1063644425, now seen corresponding path program 2 times [2023-10-12 17:30:03,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:30:03,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [658365323] [2023-10-12 17:30:03,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:30:03,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:30:03,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:30:03,404 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-10-12 17:30:03,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-10-12 17:30:03,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [658365323] [2023-10-12 17:30:03,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [658365323] provided 0 perfect and 1 imperfect interpolant sequences [2023-10-12 17:30:03,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1731573456] [2023-10-12 17:30:03,405 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-10-12 17:30:03,405 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-10-12 17:30:03,405 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:30:03,406 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-10-12 17:30:03,425 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-10-12 17:30:03,448 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-10-12 17:30:03,448 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-10-12 17:30:03,448 INFO L262 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 8 conjunts are in the unsatisfiable core [2023-10-12 17:30:03,449 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:30:03,499 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-10-12 17:30:03,499 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-10-12 17:30:03,525 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-10-12 17:30:03,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1731573456] provided 0 perfect and 2 imperfect interpolant sequences [2023-10-12 17:30:03,525 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-10-12 17:30:03,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 12 [2023-10-12 17:30:03,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873528885] [2023-10-12 17:30:03,526 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-10-12 17:30:03,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-10-12 17:30:03,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-10-12 17:30:03,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2023-10-12 17:30:03,611 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 2608 transitions, 19104 flow. Second operand has 14 states, 13 states have (on average 2.0) internal successors, (26), 13 states have internal predecessors, (26), 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 17:30:03,611 INFO L124 encePairwiseOnDemand]: Subtrahend is not yet constructed. Will not use universal subtrahend loopers optimization. [2023-10-12 17:30:03,611 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-10-12 17:30:04,159 INFO L124 PetriNetUnfolderBase]: 1809/2807 cut-off events. [2023-10-12 17:30:04,159 INFO L125 PetriNetUnfolderBase]: For 970/970 co-relation queries the response was YES. [2023-10-12 17:30:04,162 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12021 conditions, 2807 events. 1809/2807 cut-off events. For 970/970 co-relation queries the response was YES. Maximal size of possible extension queue 202. Compared 14617 event pairs, 7 based on Foata normal form. 0/1705 useless extension candidates. Maximal degree in co-relation 7384. Up to 989 conditions per place. [2023-10-12 17:30:04,173 INFO L140 encePairwiseOnDemand]: 38/44 looper letters, 645 selfloop transitions, 271 changer transitions 384/1300 dead transitions. [2023-10-12 17:30:04,173 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 1300 transitions, 11573 flow [2023-10-12 17:30:04,173 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 52 places, 1300 transitions, 11573 flow [2023-10-12 17:30:04,380 INFO L124 PetriNetUnfolderBase]: 1809/2807 cut-off events. [2023-10-12 17:30:04,381 INFO L125 PetriNetUnfolderBase]: For 970/970 co-relation queries the response was YES. [2023-10-12 17:30:04,383 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12021 conditions, 2807 events. 1809/2807 cut-off events. For 970/970 co-relation queries the response was YES. Maximal size of possible extension queue 202. Compared 14611 event pairs, 7 based on Foata normal form. 0/1705 useless extension candidates. Maximal degree in co-relation 7384. Up to 989 conditions per place. [2023-10-12 17:30:04,383 INFO L82 GeneralOperation]: Start removeDeadBuchi. Operand has 52 places, 1300 transitions, 11573 flow [2023-10-12 17:30:04,396 INFO L88 GeneralOperation]: Finished RemoveDeadBuchi, result has has 52 places, 1300 transitions, 11573 flow [2023-10-12 17:30:04,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-10-12 17:30:04,397 INFO L430 stractBuchiCegarLoop]: Abstraction has has 52 places, 1300 transitions, 11573 flow [2023-10-12 17:30:04,398 INFO L337 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-10-12 17:30:04,398 INFO L84 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 52 places, 1300 transitions, 11573 flow [2023-10-12 17:30:04,445 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-10-12 17:30:04,445 INFO L124 PetriNetUnfolderBase]: 362/536 cut-off events. [2023-10-12 17:30:04,445 INFO L125 PetriNetUnfolderBase]: For 113/113 co-relation queries the response was YES. [2023-10-12 17:30:04,446 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty language is not empty [2023-10-12 17:30:04,446 INFO L748 eck$LassoCheckResult]: Stem: 40#[$Ultimate##0]true [103] $Ultimate##0-->L61: Formula: (and (= v_i_19 v_sum_23) (= v_i_19 v_mts1_19) (< v_M_14 v_N_16) (= v_i_19 0) (<= 0 v_M_14) (= v_i_19 v_mts2_19) (= v_i_19 v_j_19) (= v_M_14 v_k_24) (= v_i_19 v_mts3_19)) InVars {sum=v_sum_23, N=v_N_16, M=v_M_14, k=v_k_24, j=v_j_19, i=v_i_19, mts1=v_mts1_19, mts3=v_mts3_19, mts2=v_mts2_19} OutVars{sum=v_sum_23, N=v_N_16, M=v_M_14, k=v_k_24, j=v_j_19, i=v_i_19, mts1=v_mts1_19, mts3=v_mts3_19, mts2=v_mts2_19} AuxVars[] AssignedVars[] 42#[L61]true [83] L61-->L24-1: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0] 44#[L61-1, L24-1]true [86] L61-1-->L35-1: 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] 89#[L62, L24-1, L35-1]true [101] L24-1-->L24-1: Formula: (and (= (let ((.cse0 (+ (select v_A_17 v_i_16) v_mts1_16))) (ite (< .cse0 0) 0 .cse0)) v_mts1_15) (= v_i_15 (+ v_i_16 1)) (< v_i_16 v_N_12)) InVars {A=v_A_17, N=v_N_12, i=v_i_16, mts1=v_mts1_16} OutVars{A=v_A_17, N=v_N_12, i=v_i_15, mts1=v_mts1_15} AuxVars[] AssignedVars[i, mts1] 89#[L62, L24-1, L35-1]true [89] L62-->L46-1: 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] 148#[L46-1, L63, L24-1, L35-1]true [2023-10-12 17:30:04,446 INFO L750 eck$LassoCheckResult]: Loop: 148#[L46-1, L63, L24-1, L35-1]true [94] L46-1-->L46-1: Formula: (let ((.cse0 (select v_A_13 v_k_19))) (and (= v_sum_13 (+ v_sum_14 .cse0)) (= v_k_18 (+ v_k_19 1)) (< v_k_19 v_N_8) (= (let ((.cse1 (+ v_mts3_10 .cse0))) (ite (< .cse1 0) 0 .cse1)) v_mts3_9))) InVars {sum=v_sum_14, A=v_A_13, N=v_N_8, k=v_k_19, mts3=v_mts3_10} OutVars{sum=v_sum_13, A=v_A_13, N=v_N_8, k=v_k_18, mts3=v_mts3_9} AuxVars[] AssignedVars[sum, k, mts3] 148#[L46-1, L63, L24-1, L35-1]true [94] L46-1-->L46-1: Formula: (let ((.cse0 (select v_A_13 v_k_19))) (and (= v_sum_13 (+ v_sum_14 .cse0)) (= v_k_18 (+ v_k_19 1)) (< v_k_19 v_N_8) (= (let ((.cse1 (+ v_mts3_10 .cse0))) (ite (< .cse1 0) 0 .cse1)) v_mts3_9))) InVars {sum=v_sum_14, A=v_A_13, N=v_N_8, k=v_k_19, mts3=v_mts3_10} OutVars{sum=v_sum_13, A=v_A_13, N=v_N_8, k=v_k_18, mts3=v_mts3_9} AuxVars[] AssignedVars[sum, k, mts3] 148#[L46-1, L63, L24-1, L35-1]true [2023-10-12 17:30:04,446 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:30:04,446 INFO L85 PathProgramCache]: Analyzing trace with hash 126310333, now seen corresponding path program 1 times [2023-10-12 17:30:04,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:30:04,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452317765] [2023-10-12 17:30:04,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:30:04,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:30:04,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:30:04,451 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:30:04,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:30:04,455 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:30:04,456 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:30:04,456 INFO L85 PathProgramCache]: Analyzing trace with hash 3969, now seen corresponding path program 2 times [2023-10-12 17:30:04,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:30:04,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283483808] [2023-10-12 17:30:04,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:30:04,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:30:04,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:30:04,459 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:30:04,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:30:04,463 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:30:04,463 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:30:04,463 INFO L85 PathProgramCache]: Analyzing trace with hash 1125148733, now seen corresponding path program 1 times [2023-10-12 17:30:04,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:30:04,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441140335] [2023-10-12 17:30:04,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:30:04,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:30:04,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:30:04,468 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:30:04,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:30:04,474 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:30:04,683 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:30:04,683 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:30:04,683 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:30:04,683 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:30:04,683 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-10-12 17:30:04,683 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:30:04,683 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:30:04,683 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:30:04,683 INFO L133 ssoRankerPreferences]: Filename of dumped script: mts-array.wvr.bpl_BEv2_Iteration4_Lasso [2023-10-12 17:30:04,683 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:30:04,683 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:30:04,687 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 17:30:04,689 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 17:30:04,810 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 17:30:04,814 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 17:30:04,816 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 17:30:04,818 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 17:30:04,819 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 17:30:04,821 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 17:30:04,823 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 17:30:04,825 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 17:30:05,085 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:30:05,085 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-10-12 17:30:05,085 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:30:05,085 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:30:05,086 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 17:30:05,108 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 17:30:05,111 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 17:30:05,114 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:30:05,115 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:30:05,115 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:30:05,115 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:30:05,116 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:30:05,116 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:30:05,131 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:30:05,135 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 17:30:05,137 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:30:05,137 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:30:05,269 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 17:30:05,275 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 17:30:05,282 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:30:05,282 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:30:05,282 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:30:05,282 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:30:05,284 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 17:30:05,284 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:30:05,284 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:30:05,289 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-10-12 17:30:05,296 INFO L443 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver. [2023-10-12 17:30:05,296 INFO L444 ModelExtractionUtils]: 5 out of 13 variables were initially zero. Simplification set additionally 5 variables to zero. [2023-10-12 17:30:05,296 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:30:05,296 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:30:05,300 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 17:30:05,303 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 17:30:05,304 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-10-12 17:30:05,311 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2023-10-12 17:30:05,312 INFO L513 LassoAnalysis]: Proved termination. [2023-10-12 17:30:05,312 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(k, N) = -1*k + 1*N Supporting invariants [] [2023-10-12 17:30:05,315 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 17:30:05,318 INFO L156 tatePredicateManager]: 1 out of 1 supporting invariants were superfluous and have been removed [2023-10-12 17:30:05,327 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:30:05,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:30:05,337 INFO L262 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 2 conjunts are in the unsatisfiable core [2023-10-12 17:30:05,337 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:30:05,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:30:05,378 INFO L262 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 5 conjunts are in the unsatisfiable core [2023-10-12 17:30:05,378 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:30:05,386 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 17:30:05,386 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 17:30:05,387 INFO L74 BuchiComplementNCSB]: Start buchiComplementNCSB. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-10-12 17:30:05,522 INFO L82 BuchiComplementNCSB]: Finished buchiComplementNCSB. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 7 states and 338 transitions. [2023-10-12 17:30:05,523 INFO L79 BuchiIntersect]: Starting Intersection [2023-10-12 17:30:05,595 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2023-10-12 17:30:05,656 INFO L86 BuchiIntersect]: Exiting Intersection [2023-10-12 17:30:05,656 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 17:30:05,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-10-12 17:30:05,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 220 transitions. [2023-10-12 17:30:05,659 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 220 transitions. Stem has 5 letters. Loop has 2 letters. [2023-10-12 17:30:05,660 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:30:05,660 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 220 transitions. Stem has 7 letters. Loop has 2 letters. [2023-10-12 17:30:05,660 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:30:05,660 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 220 transitions. Stem has 5 letters. Loop has 4 letters. [2023-10-12 17:30:05,660 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:30:05,660 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 66 places, 20054 transitions, 219308 flow [2023-10-12 17:30:13,707 INFO L124 PetriNetUnfolderBase]: 4062/6244 cut-off events. [2023-10-12 17:30:13,707 INFO L125 PetriNetUnfolderBase]: For 2157/2157 co-relation queries the response was YES. [2023-10-12 17:30:13,712 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32787 conditions, 6244 events. 4062/6244 cut-off events. For 2157/2157 co-relation queries the response was YES. Maximal size of possible extension queue 484. Compared 37312 event pairs, 4 based on Foata normal form. 0/3699 useless extension candidates. Maximal degree in co-relation 18017. Up to 2296 conditions per place. [2023-10-12 17:30:13,712 INFO L82 GeneralOperation]: Start removeDeadBuchi. Operand has 66 places, 20054 transitions, 219308 flow [2023-10-12 17:30:13,898 INFO L88 GeneralOperation]: Finished RemoveDeadBuchi, result has has 66 places, 20054 transitions, 219308 flow [2023-10-12 17:30:13,899 INFO L430 stractBuchiCegarLoop]: Abstraction has has 66 places, 20054 transitions, 219308 flow [2023-10-12 17:30:13,899 INFO L337 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2023-10-12 17:30:13,899 INFO L84 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 66 places, 20054 transitions, 219308 flow [2023-10-12 17:30:22,894 INFO L124 PetriNetUnfolderBase]: 4062/6244 cut-off events. [2023-10-12 17:30:22,894 INFO L125 PetriNetUnfolderBase]: For 2157/2157 co-relation queries the response was YES. [2023-10-12 17:30:22,894 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty language is empty [2023-10-12 17:30:22,898 INFO L201 PluginConnector]: Adding new model mts-array.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 12.10 05:30:22 BoogieIcfgContainer [2023-10-12 17:30:22,899 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-10-12 17:30:22,899 INFO L158 Benchmark]: Toolchain (without parser) took 22539.48ms. Allocated memory was 176.2MB in the beginning and 892.3MB in the end (delta: 716.2MB). Free memory was 122.2MB in the beginning and 571.9MB in the end (delta: -449.7MB). Peak memory consumption was 630.0MB. Max. memory is 8.0GB. [2023-10-12 17:30:22,899 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.24ms. Allocated memory is still 176.2MB. Free memory is still 123.3MB. There was no memory consumed. Max. memory is 8.0GB. [2023-10-12 17:30:22,901 INFO L158 Benchmark]: Boogie Procedure Inliner took 20.91ms. Allocated memory is still 176.2MB. Free memory was 122.1MB in the beginning and 120.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-10-12 17:30:22,901 INFO L158 Benchmark]: Boogie Preprocessor took 23.27ms. Allocated memory is still 176.2MB. Free memory was 120.5MB in the beginning and 119.5MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-10-12 17:30:22,902 INFO L158 Benchmark]: RCFGBuilder took 252.99ms. Allocated memory was 176.2MB in the beginning and 212.9MB in the end (delta: 36.7MB). Free memory was 119.5MB in the beginning and 175.6MB in the end (delta: -56.2MB). Peak memory consumption was 14.0MB. Max. memory is 8.0GB. [2023-10-12 17:30:22,902 INFO L158 Benchmark]: BuchiAutomizer took 22238.87ms. Allocated memory was 212.9MB in the beginning and 892.3MB in the end (delta: 679.5MB). Free memory was 175.5MB in the beginning and 571.9MB in the end (delta: -396.5MB). Peak memory consumption was 645.4MB. Max. memory is 8.0GB. [2023-10-12 17:30:22,903 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 0.24ms. Allocated memory is still 176.2MB. Free memory is still 123.3MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 20.91ms. Allocated memory is still 176.2MB. Free memory was 122.1MB in the beginning and 120.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 23.27ms. Allocated memory is still 176.2MB. Free memory was 120.5MB in the beginning and 119.5MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 252.99ms. Allocated memory was 176.2MB in the beginning and 212.9MB in the end (delta: 36.7MB). Free memory was 119.5MB in the beginning and 175.6MB in the end (delta: -56.2MB). Peak memory consumption was 14.0MB. Max. memory is 8.0GB. * BuchiAutomizer took 22238.87ms. Allocated memory was 212.9MB in the beginning and 892.3MB in the end (delta: 679.5MB). Free memory was 175.5MB in the beginning and 571.9MB in the end (delta: -396.5MB). Peak memory consumption was 645.4MB. 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 14 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 22.1s and 5 iterations. TraceHistogramMax:0. Analysis of lassos took 2.8s. Construction of modules took 0.2s. Büchi inclusion checks took 1.1s. 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, 501 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 498 mSDsluCounter, 258 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 112 mSDsCounter, 37 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 585 IncrementalHoareTripleChecker+Invalid, 622 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 37 mSolverCounterUnsat, 146 mSDtfsCounter, 585 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso3 LassoPreprocessingBenchmarks: Lassos: inital125 mio100 ax100 hnf100 lsp311 ukn29 mio100 lsp64 div100 bol100 ite100 ukn100 eq157 hnf99 smp98 dnf281 smp39 tf100 neg100 sie107 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 73ms VariablesStem: 1 VariablesLoop: 3 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 4 MotzkinApplications: 16 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, 33 PlacesBefore, 22 PlacesAfterwards, 26 TransitionsBefore, 15 TransitionsAfterwards, 144 CoEnabledTransitionPairs, 2 FixpointIterations, 6 TrivialSequentialCompositions, 6 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 12 TotalNumberOfCompositions, 96 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 96, independent: 96, independent conditional: 0, independent unconditional: 96, 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: 78, independent: 78, independent conditional: 0, independent unconditional: 78, 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: 78, independent: 78, independent conditional: 0, independent unconditional: 78, 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: 96, independent: 18, independent conditional: 0, independent unconditional: 18, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 78, unknown conditional: 0, unknown unconditional: 78] , 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 17:30:22,934 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-10-12 17:30:23,138 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...