/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/array-sum-alt.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.fs.rabin-petrinet-4c29625-m [2023-10-12 17:25:42,365 INFO L172 SettingsManager]: Resetting all preferences to default values... [2023-10-12 17:25:42,419 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 17:25:42,438 INFO L114 SettingsManager]: Preferences different from defaults after loading the file: [2023-10-12 17:25:42,438 INFO L135 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-10-12 17:25:42,439 INFO L137 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-10-12 17:25:42,440 INFO L135 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-10-12 17:25:42,440 INFO L137 SettingsManager]: * Create parallel compositions if possible=false [2023-10-12 17:25:42,441 INFO L137 SettingsManager]: * Use SBE=true [2023-10-12 17:25:42,441 INFO L135 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-10-12 17:25:42,441 INFO L137 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-10-12 17:25:42,442 INFO L137 SettingsManager]: * Use old map elimination=false [2023-10-12 17:25:42,442 INFO L137 SettingsManager]: * Use external solver (rank synthesis)=false [2023-10-12 17:25:42,442 INFO L137 SettingsManager]: * Use only trivial implications for array writes=true [2023-10-12 17:25:42,442 INFO L137 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-10-12 17:25:42,443 INFO L135 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-10-12 17:25:42,443 INFO L137 SettingsManager]: * sizeof long=4 [2023-10-12 17:25:42,443 INFO L137 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-10-12 17:25:42,444 INFO L137 SettingsManager]: * Overapproximate operations on floating types=true [2023-10-12 17:25:42,444 INFO L137 SettingsManager]: * sizeof POINTER=4 [2023-10-12 17:25:42,444 INFO L137 SettingsManager]: * Check division by zero=IGNORE [2023-10-12 17:25:42,445 INFO L137 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-10-12 17:25:42,445 INFO L137 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-10-12 17:25:42,445 INFO L137 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-10-12 17:25:42,445 INFO L137 SettingsManager]: * sizeof long double=12 [2023-10-12 17:25:42,445 INFO L137 SettingsManager]: * Check if freed pointer was valid=false [2023-10-12 17:25:42,446 INFO L137 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-10-12 17:25:42,446 INFO L137 SettingsManager]: * Use constant arrays=true [2023-10-12 17:25:42,446 INFO L137 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-10-12 17:25:42,446 INFO L135 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-10-12 17:25:42,447 INFO L137 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-10-12 17:25:42,447 INFO L135 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-10-12 17:25:42,447 INFO L137 SettingsManager]: * Trace refinement strategy=CAMEL [2023-10-12 17:25:42,448 INFO L135 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-10-12 17:25:42,448 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: Automaton type for concurrent programs -> BUCHI_PETRI_NET [2023-10-12 17:25:42,671 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-10-12 17:25:42,698 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-10-12 17:25:42,701 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-10-12 17:25:42,702 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2023-10-12 17:25:42,702 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2023-10-12 17:25:42,703 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/array-sum-alt.wvr.bpl [2023-10-12 17:25:42,704 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/array-sum-alt.wvr.bpl' [2023-10-12 17:25:42,733 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-10-12 17:25:42,734 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2023-10-12 17:25:42,736 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-10-12 17:25:42,737 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-10-12 17:25:42,737 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-10-12 17:25:42,748 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "array-sum-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:25:42" (1/1) ... [2023-10-12 17:25:42,754 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "array-sum-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:25:42" (1/1) ... [2023-10-12 17:25:42,760 INFO L138 Inliner]: procedures = 4, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2023-10-12 17:25:42,761 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-10-12 17:25:42,762 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-10-12 17:25:42,763 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-10-12 17:25:42,763 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-10-12 17:25:42,770 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "array-sum-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:25:42" (1/1) ... [2023-10-12 17:25:42,771 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "array-sum-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:25:42" (1/1) ... [2023-10-12 17:25:42,772 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "array-sum-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:25:42" (1/1) ... [2023-10-12 17:25:42,772 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "array-sum-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:25:42" (1/1) ... [2023-10-12 17:25:42,776 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "array-sum-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:25:42" (1/1) ... [2023-10-12 17:25:42,780 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "array-sum-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:25:42" (1/1) ... [2023-10-12 17:25:42,781 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "array-sum-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:25:42" (1/1) ... [2023-10-12 17:25:42,782 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "array-sum-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:25:42" (1/1) ... [2023-10-12 17:25:42,783 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-10-12 17:25:42,784 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-10-12 17:25:42,784 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-10-12 17:25:42,784 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-10-12 17:25:42,785 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "array-sum-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:25:42" (1/1) ... [2023-10-12 17:25:42,791 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:25:42,805 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:25:42,826 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 17:25:42,838 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 17:25:42,865 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2023-10-12 17:25:42,865 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-10-12 17:25:42,866 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-10-12 17:25:42,866 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2023-10-12 17:25:42,866 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-10-12 17:25:42,866 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-10-12 17:25:42,866 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2023-10-12 17:25:42,866 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-10-12 17:25:42,867 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-10-12 17:25:42,867 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2023-10-12 17:25:42,867 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-10-12 17:25:42,867 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-10-12 17:25:42,868 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 17:25:42,915 INFO L236 CfgBuilder]: Building ICFG [2023-10-12 17:25:42,917 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-10-12 17:25:43,018 INFO L277 CfgBuilder]: Performing block encoding [2023-10-12 17:25:43,024 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-10-12 17:25:43,024 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-10-12 17:25:43,026 INFO L201 PluginConnector]: Adding new model array-sum-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:25:43 BoogieIcfgContainer [2023-10-12 17:25:43,026 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-10-12 17:25:43,027 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-10-12 17:25:43,027 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-10-12 17:25:43,030 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-10-12 17:25:43,031 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-10-12 17:25:43,031 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "array-sum-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:25:42" (1/2) ... [2023-10-12 17:25:43,033 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5ec5b96e and model type array-sum-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 12.10 05:25:43, skipping insertion in model container [2023-10-12 17:25:43,034 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-10-12 17:25:43,034 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "array-sum-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:25:43" (2/2) ... [2023-10-12 17:25:43,039 INFO L332 chiAutomizerObserver]: Analyzing ICFG array-sum-alt.wvr.bpl [2023-10-12 17:25:43,095 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-10-12 17:25:43,118 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 39 places, 35 transitions, 94 flow [2023-10-12 17:25:43,138 INFO L124 PetriNetUnfolderBase]: 3/29 cut-off events. [2023-10-12 17:25:43,139 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-10-12 17:25:43,143 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42 conditions, 29 events. 3/29 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 41 event pairs, 0 based on Foata normal form. 0/25 useless extension candidates. Maximal degree in co-relation 21. Up to 2 conditions per place. [2023-10-12 17:25:43,143 INFO L82 GeneralOperation]: Start removeDead. Operand has 39 places, 35 transitions, 94 flow [2023-10-12 17:25:43,147 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 36 places, 29 transitions, 76 flow [2023-10-12 17:25:43,150 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-10-12 17:25:43,176 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 36 places, 29 transitions, 76 flow [2023-10-12 17:25:43,179 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 36 places, 29 transitions, 76 flow [2023-10-12 17:25:43,179 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 36 places, 29 transitions, 76 flow [2023-10-12 17:25:43,186 INFO L124 PetriNetUnfolderBase]: 3/29 cut-off events. [2023-10-12 17:25:43,186 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-10-12 17:25:43,187 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42 conditions, 29 events. 3/29 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 41 event pairs, 0 based on Foata normal form. 0/25 useless extension candidates. Maximal degree in co-relation 21. Up to 2 conditions per place. [2023-10-12 17:25:43,217 INFO L119 LiptonReduction]: Number of co-enabled transitions 210 [2023-10-12 17:25:43,531 INFO L134 LiptonReduction]: Checked pairs total: 138 [2023-10-12 17:25:43,531 INFO L136 LiptonReduction]: Total number of compositions: 15 [2023-10-12 17:25:43,548 INFO L305 stractBuchiCegarLoop]: Interprodecural is true [2023-10-12 17:25:43,549 INFO L306 stractBuchiCegarLoop]: Hoare is false [2023-10-12 17:25:43,549 INFO L307 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-10-12 17:25:43,549 INFO L308 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-10-12 17:25:43,549 INFO L309 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-10-12 17:25:43,549 INFO L310 stractBuchiCegarLoop]: Difference is false [2023-10-12 17:25:43,549 INFO L311 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-10-12 17:25:43,549 INFO L315 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiPetriNetCegarLoop ======== [2023-10-12 17:25:43,550 INFO L84 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 22 places, 15 transitions, 48 flow [2023-10-12 17:25:43,555 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-10-12 17:25:43,556 INFO L124 PetriNetUnfolderBase]: 0/2 cut-off events. [2023-10-12 17:25:43,557 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-10-12 17:25:43,557 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty language is not empty [2023-10-12 17:25:43,567 INFO L337 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-10-12 17:25:43,567 INFO L84 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 22 places, 15 transitions, 48 flow [2023-10-12 17:25:43,569 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-10-12 17:25:43,569 INFO L124 PetriNetUnfolderBase]: 0/2 cut-off events. [2023-10-12 17:25:43,569 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-10-12 17:25:43,569 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty language is not empty [2023-10-12 17:25:43,574 INFO L748 eck$LassoCheckResult]: Stem: 43#[$Ultimate##0]true [108] $Ultimate##0-->L52: Formula: (and (= v_i_19 v_res1_19) (= v_i_19 0) (<= 0 v_M_14) (= v_i_19 v_res2_41) (= v_i_19 v_j_25) (= v_M_14 v_k_21) (<= v_M_14 v_N_20)) InVars {N=v_N_20, M=v_M_14, k=v_k_21, res1=v_res1_19, j=v_j_25, i=v_i_19, res2=v_res2_41} OutVars{N=v_N_20, M=v_M_14, k=v_k_21, res1=v_res1_19, j=v_j_25, i=v_i_19, res2=v_res2_41} AuxVars[] AssignedVars[] 45#[L52]true [84] L52-->L21: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0] 47#[L21, L52-1]true [2023-10-12 17:25:43,576 INFO L750 eck$LassoCheckResult]: Loop: 47#[L21, L52-1]true [104] L21-->L21: Formula: (and (= v_i_15 (+ v_i_16 1)) (= (+ (select v_A_12 v_i_16) v_res1_14) v_res1_13) (< v_i_16 v_N_14)) InVars {A=v_A_12, N=v_N_14, res1=v_res1_14, i=v_i_16} OutVars{A=v_A_12, N=v_N_14, res1=v_res1_13, i=v_i_15} AuxVars[] AssignedVars[res1, i] 47#[L21, L52-1]true [2023-10-12 17:25:43,586 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:25:43,587 INFO L85 PathProgramCache]: Analyzing trace with hash 4393, now seen corresponding path program 1 times [2023-10-12 17:25:43,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:25:43,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163997312] [2023-10-12 17:25:43,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:25:43,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:25:43,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:25:43,665 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:25:43,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:25:43,684 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:25:43,686 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:25:43,686 INFO L85 PathProgramCache]: Analyzing trace with hash 135, now seen corresponding path program 1 times [2023-10-12 17:25:43,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:25:43,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331486521] [2023-10-12 17:25:43,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:25:43,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:25:43,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:25:43,703 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:25:43,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:25:43,718 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:25:43,720 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:25:43,720 INFO L85 PathProgramCache]: Analyzing trace with hash 136287, now seen corresponding path program 1 times [2023-10-12 17:25:43,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:25:43,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377749472] [2023-10-12 17:25:43,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:25:43,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:25:43,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:25:43,737 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:25:43,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:25:43,757 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:25:43,880 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:25:43,881 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:25:43,881 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:25:43,881 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:25:43,881 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-10-12 17:25:43,882 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:25:43,882 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:25:43,882 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:25:43,882 INFO L133 ssoRankerPreferences]: Filename of dumped script: array-sum-alt.wvr.bpl_BEv2_Iteration1_Lasso [2023-10-12 17:25:43,882 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:25:43,882 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:25:43,896 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 17:25:43,904 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 17:25:43,908 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 17:25:43,910 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 17:25:44,019 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:25:44,022 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-10-12 17:25:44,024 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:25:44,024 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:25:44,039 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 17:25:44,044 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 17:25:44,049 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 17:25:44,053 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:25:44,054 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:25:44,054 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:25:44,054 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:25:44,059 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:25:44,059 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:25:44,085 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:25:44,091 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2023-10-12 17:25:44,092 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:25:44,092 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:25:44,093 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 17:25:44,104 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 17:25:44,105 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 17:25:44,113 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:25:44,113 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:25:44,113 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:25:44,113 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:25:44,118 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:25:44,118 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:25:44,125 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:25:44,128 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 17:25:44,128 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:25:44,129 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:25:44,129 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 17:25:44,131 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 17:25:44,133 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 17:25:44,139 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:25:44,140 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:25:44,140 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:25:44,140 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:25:44,143 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:25:44,143 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:25:44,164 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:25:44,173 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 17:25:44,174 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:25:44,174 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:25:44,308 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 17:25:44,311 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 17:25:44,313 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 17:25:44,321 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:25:44,321 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:25:44,321 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:25:44,321 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:25:44,326 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:25:44,326 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:25:44,335 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-10-12 17:25:44,371 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2023-10-12 17:25:44,371 INFO L444 ModelExtractionUtils]: 10 out of 16 variables were initially zero. Simplification set additionally 3 variables to zero. [2023-10-12 17:25:44,373 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:25:44,373 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:25:44,393 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 17:25:44,395 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 17:25:44,413 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-10-12 17:25:44,421 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2023-10-12 17:25:44,421 INFO L513 LassoAnalysis]: Proved termination. [2023-10-12 17:25:44,421 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(i, N) = -1*i + 1*N Supporting invariants [] [2023-10-12 17:25:44,427 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 17:25:44,429 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-10-12 17:25:44,455 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:25:44,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:25:44,465 INFO L262 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 2 conjunts are in the unsatisfiable core [2023-10-12 17:25:44,468 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:25:44,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:25:44,480 WARN L260 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2023-10-12 17:25:44,480 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:25:44,481 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 17:25:44,519 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 17:25:44,520 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 17:25:44,641 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 292 transitions. [2023-10-12 17:25:44,642 INFO L79 BuchiIntersect]: Starting Intersection [2023-10-12 17:25:44,648 INFO L86 BuchiIntersect]: Exiting Intersection [2023-10-12 17:25:44,650 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 17:25:44,650 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 17:25:44,654 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 17:25:44,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 200 transitions. [2023-10-12 17:25:44,660 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 200 transitions. Stem has 2 letters. Loop has 1 letters. [2023-10-12 17:25:44,660 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:25:44,660 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 200 transitions. Stem has 3 letters. Loop has 1 letters. [2023-10-12 17:25:44,660 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:25:44,660 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 200 transitions. Stem has 2 letters. Loop has 2 letters. [2023-10-12 17:25:44,661 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:25:44,661 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 32 places, 172 transitions, 904 flow [2023-10-12 17:25:44,705 INFO L124 PetriNetUnfolderBase]: 135/207 cut-off events. [2023-10-12 17:25:44,706 INFO L125 PetriNetUnfolderBase]: For 60/60 co-relation queries the response was YES. [2023-10-12 17:25:44,707 INFO L83 FinitePrefix]: Finished finitePrefix Result has 486 conditions, 207 events. 135/207 cut-off events. For 60/60 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 559 event pairs, 12 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 17:25:44,708 INFO L82 GeneralOperation]: Start removeDeadBuchi. Operand has 32 places, 172 transitions, 904 flow [2023-10-12 17:25:44,715 INFO L88 GeneralOperation]: Finished RemoveDeadBuchi, result has has 32 places, 172 transitions, 904 flow [2023-10-12 17:25:44,716 INFO L430 stractBuchiCegarLoop]: Abstraction has has 32 places, 172 transitions, 904 flow [2023-10-12 17:25:44,716 INFO L337 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-10-12 17:25:44,716 INFO L84 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 32 places, 172 transitions, 904 flow [2023-10-12 17:25:44,728 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-10-12 17:25:44,728 INFO L124 PetriNetUnfolderBase]: 28/43 cut-off events. [2023-10-12 17:25:44,728 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-10-12 17:25:44,728 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty language is not empty [2023-10-12 17:25:44,729 INFO L748 eck$LassoCheckResult]: Stem: 43#[$Ultimate##0]true [108] $Ultimate##0-->L52: Formula: (and (= v_i_19 v_res1_19) (= v_i_19 0) (<= 0 v_M_14) (= v_i_19 v_res2_41) (= v_i_19 v_j_25) (= v_M_14 v_k_21) (<= v_M_14 v_N_20)) InVars {N=v_N_20, M=v_M_14, k=v_k_21, res1=v_res1_19, j=v_j_25, i=v_i_19, res2=v_res2_41} OutVars{N=v_N_20, M=v_M_14, k=v_k_21, res1=v_res1_19, j=v_j_25, i=v_i_19, res2=v_res2_41} AuxVars[] AssignedVars[] 45#[L52]true [84] L52-->L21: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0] 47#[L21, L52-1]true [87] L52-1-->L30: Formula: (and (= 2 v_thread2Thread1of1ForFork1_thidvar1_2) (= 2 v_thread2Thread1of1ForFork1_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_2, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_thidvar0, thread2Thread1of1ForFork1_thidvar1] 92#[L21, L30, L53]true [2023-10-12 17:25:44,729 INFO L750 eck$LassoCheckResult]: Loop: 92#[L21, L30, L53]true [105] L30-->L30: Formula: (and (= v_res2_25 (+ v_res2_26 (select v_A_14 v_j_18))) (< v_j_18 v_M_12) (= (+ v_j_18 1) v_j_17)) InVars {A=v_A_14, M=v_M_12, j=v_j_18, res2=v_res2_26} OutVars{A=v_A_14, M=v_M_12, j=v_j_17, res2=v_res2_25} AuxVars[] AssignedVars[j, res2] 92#[L21, L30, L53]true [105] L30-->L30: Formula: (and (= v_res2_25 (+ v_res2_26 (select v_A_14 v_j_18))) (< v_j_18 v_M_12) (= (+ v_j_18 1) v_j_17)) InVars {A=v_A_14, M=v_M_12, j=v_j_18, res2=v_res2_26} OutVars{A=v_A_14, M=v_M_12, j=v_j_17, res2=v_res2_25} AuxVars[] AssignedVars[j, res2] 92#[L21, L30, L53]true [2023-10-12 17:25:44,730 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:25:44,730 INFO L85 PathProgramCache]: Analyzing trace with hash 136270, now seen corresponding path program 1 times [2023-10-12 17:25:44,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:25:44,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810836972] [2023-10-12 17:25:44,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:25:44,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:25:44,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:25:44,740 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:25:44,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:25:44,755 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:25:44,756 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:25:44,756 INFO L85 PathProgramCache]: Analyzing trace with hash 4321, now seen corresponding path program 1 times [2023-10-12 17:25:44,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:25:44,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685467278] [2023-10-12 17:25:44,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:25:44,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:25:44,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:25:44,771 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:25:44,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:25:44,781 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:25:44,782 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:25:44,782 INFO L85 PathProgramCache]: Analyzing trace with hash 130958830, now seen corresponding path program 1 times [2023-10-12 17:25:44,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:25:44,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465817833] [2023-10-12 17:25:44,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:25:44,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:25:44,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:25:44,790 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:25:44,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:25:44,801 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:25:44,918 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:25:44,918 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:25:44,918 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:25:44,918 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:25:44,918 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-10-12 17:25:44,919 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:25:44,919 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:25:44,919 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:25:44,919 INFO L133 ssoRankerPreferences]: Filename of dumped script: array-sum-alt.wvr.bpl_BEv2_Iteration2_Lasso [2023-10-12 17:25:44,919 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:25:44,919 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:25:44,921 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 17:25:44,924 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 17:25:44,927 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 17:25:44,930 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 17:25:44,950 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 17:25:44,953 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 17:25:45,028 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:25:45,028 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-10-12 17:25:45,028 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:25:45,028 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:25:45,033 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 17:25:45,036 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 17:25:45,037 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 17:25:45,044 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:25:45,044 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:25:45,045 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:25:45,045 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:25:45,049 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:25:45,049 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:25:45,064 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:25:45,070 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 17:25:45,071 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:25:45,071 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:25:45,073 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 17:25:45,084 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 17:25:45,091 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:25:45,091 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:25:45,092 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:25:45,092 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:25:45,098 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:25:45,098 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:25:45,102 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 17:25:45,125 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:25:45,130 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 17:25:45,131 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:25:45,131 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:25:45,132 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 17:25:45,135 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 17:25:45,137 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 17:25:45,144 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:25:45,145 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:25:45,145 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:25:45,145 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:25:45,148 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:25:45,148 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:25:45,165 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:25:45,169 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 17:25:45,170 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:25:45,170 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:25:45,171 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 17:25:45,174 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 17:25:45,176 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 17:25:45,183 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:25:45,183 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:25:45,183 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:25:45,183 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:25:45,188 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:25:45,188 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:25:45,209 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:25:45,215 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 17:25:45,215 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:25:45,215 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:25:45,217 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 17:25:45,226 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 17:25:45,234 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:25:45,234 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:25:45,234 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:25:45,234 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:25:45,241 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 17:25:45,242 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:25:45,242 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:25:45,273 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-10-12 17:25:45,284 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2023-10-12 17:25:45,284 INFO L444 ModelExtractionUtils]: 5 out of 16 variables were initially zero. Simplification set additionally 8 variables to zero. [2023-10-12 17:25:45,284 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:25:45,285 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:25:45,289 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 17:25:45,291 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 17:25:45,292 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-10-12 17:25:45,298 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2023-10-12 17:25:45,299 INFO L513 LassoAnalysis]: Proved termination. [2023-10-12 17:25:45,299 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(M, j) = 1*M - 1*j Supporting invariants [] [2023-10-12 17:25:45,303 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 17:25:45,318 INFO L156 tatePredicateManager]: 1 out of 1 supporting invariants were superfluous and have been removed [2023-10-12 17:25:45,331 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:25:45,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:25:45,341 INFO L262 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 2 conjunts are in the unsatisfiable core [2023-10-12 17:25:45,342 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:25:45,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:25:45,356 INFO L262 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 5 conjunts are in the unsatisfiable core [2023-10-12 17:25:45,357 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:25:45,374 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 17:25:45,375 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 17:25:45,375 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 17:25:45,535 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 386 transitions. [2023-10-12 17:25:45,535 INFO L79 BuchiIntersect]: Starting Intersection [2023-10-12 17:25:45,555 INFO L86 BuchiIntersect]: Exiting Intersection [2023-10-12 17:25:45,555 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 17:25:45,556 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 17:25:45,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 250 transitions. [2023-10-12 17:25:45,558 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 250 transitions. Stem has 3 letters. Loop has 2 letters. [2023-10-12 17:25:45,558 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:25:45,558 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 250 transitions. Stem has 5 letters. Loop has 2 letters. [2023-10-12 17:25:45,558 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:25:45,558 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 250 transitions. Stem has 3 letters. Loop has 4 letters. [2023-10-12 17:25:45,558 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:25:45,559 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 46 places, 2608 transitions, 19104 flow [2023-10-12 17:25:45,651 INFO L124 PetriNetUnfolderBase]: 383/568 cut-off events. [2023-10-12 17:25:45,652 INFO L125 PetriNetUnfolderBase]: For 161/161 co-relation queries the response was YES. [2023-10-12 17:25:45,653 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1875 conditions, 568 events. 383/568 cut-off events. For 161/161 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 1995 event pairs, 16 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 17:25:45,653 INFO L82 GeneralOperation]: Start removeDeadBuchi. Operand has 46 places, 2608 transitions, 19104 flow [2023-10-12 17:25:45,699 INFO L88 GeneralOperation]: Finished RemoveDeadBuchi, result has has 46 places, 2608 transitions, 19104 flow [2023-10-12 17:25:45,700 INFO L430 stractBuchiCegarLoop]: Abstraction has has 46 places, 2608 transitions, 19104 flow [2023-10-12 17:25:45,700 INFO L337 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-10-12 17:25:45,700 INFO L84 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 46 places, 2608 transitions, 19104 flow [2023-10-12 17:25:45,771 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-10-12 17:25:45,771 INFO L124 PetriNetUnfolderBase]: 173/245 cut-off events. [2023-10-12 17:25:45,771 INFO L125 PetriNetUnfolderBase]: For 67/67 co-relation queries the response was YES. [2023-10-12 17:25:45,771 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty language is not empty [2023-10-12 17:25:45,772 INFO L748 eck$LassoCheckResult]: Stem: 43#[$Ultimate##0]true [108] $Ultimate##0-->L52: Formula: (and (= v_i_19 v_res1_19) (= v_i_19 0) (<= 0 v_M_14) (= v_i_19 v_res2_41) (= v_i_19 v_j_25) (= v_M_14 v_k_21) (<= v_M_14 v_N_20)) InVars {N=v_N_20, M=v_M_14, k=v_k_21, res1=v_res1_19, j=v_j_25, i=v_i_19, res2=v_res2_41} OutVars{N=v_N_20, M=v_M_14, k=v_k_21, res1=v_res1_19, j=v_j_25, i=v_i_19, res2=v_res2_41} AuxVars[] AssignedVars[] 45#[L52]true [84] L52-->L21: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0] 47#[L21, L52-1]true [100] L21-->thread1EXIT: Formula: (<= v_N_10 v_i_13) InVars {N=v_N_10, i=v_i_13} OutVars{N=v_N_10, i=v_i_13} AuxVars[] AssignedVars[] 149#[L52-1, thread1EXIT]true [87] L52-1-->L30: Formula: (and (= 2 v_thread2Thread1of1ForFork1_thidvar1_2) (= 2 v_thread2Thread1of1ForFork1_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_2, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_thidvar0, thread2Thread1of1ForFork1_thidvar1] 151#[L30, thread1EXIT, L53]true [90] L53-->L39: Formula: (and (= 3 v_thread3Thread1of1ForFork2_thidvar0_2) (= 3 v_thread3Thread1of1ForFork2_thidvar1_2) (= 3 v_thread3Thread1of1ForFork2_thidvar2_2)) InVars {} OutVars{thread3Thread1of1ForFork2_thidvar2=v_thread3Thread1of1ForFork2_thidvar2_2, thread3Thread1of1ForFork2_thidvar1=v_thread3Thread1of1ForFork2_thidvar1_2, thread3Thread1of1ForFork2_thidvar0=v_thread3Thread1of1ForFork2_thidvar0_2} AuxVars[] AssignedVars[thread3Thread1of1ForFork2_thidvar2, thread3Thread1of1ForFork2_thidvar1, thread3Thread1of1ForFork2_thidvar0] 153#[L54, L39, L30, thread1EXIT]true [2023-10-12 17:25:45,772 INFO L750 eck$LassoCheckResult]: Loop: 153#[L54, L39, L30, thread1EXIT]true [107] L39-->L39: Formula: (and (= (+ (select v_A_18 v_k_18) v_res2_38) v_res2_37) (< v_k_18 v_N_18) (= v_k_17 (+ v_k_18 1))) InVars {A=v_A_18, N=v_N_18, k=v_k_18, res2=v_res2_38} OutVars{A=v_A_18, N=v_N_18, k=v_k_17, res2=v_res2_37} AuxVars[] AssignedVars[k, res2] 153#[L54, L39, L30, thread1EXIT]true [107] L39-->L39: Formula: (and (= (+ (select v_A_18 v_k_18) v_res2_38) v_res2_37) (< v_k_18 v_N_18) (= v_k_17 (+ v_k_18 1))) InVars {A=v_A_18, N=v_N_18, k=v_k_18, res2=v_res2_38} OutVars{A=v_A_18, N=v_N_18, k=v_k_17, res2=v_res2_37} AuxVars[] AssignedVars[k, res2] 153#[L54, L39, L30, thread1EXIT]true [2023-10-12 17:25:45,772 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:25:45,772 INFO L85 PathProgramCache]: Analyzing trace with hash 130970750, now seen corresponding path program 1 times [2023-10-12 17:25:45,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:25:45,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584120133] [2023-10-12 17:25:45,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:25:45,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:25:45,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:25:45,778 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:25:45,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:25:45,784 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:25:45,784 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:25:45,784 INFO L85 PathProgramCache]: Analyzing trace with hash 4385, now seen corresponding path program 1 times [2023-10-12 17:25:45,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:25:45,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006676851] [2023-10-12 17:25:45,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:25:45,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:25:45,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:25:45,789 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:25:45,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:25:45,794 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:25:45,794 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:25:45,795 INFO L85 PathProgramCache]: Analyzing trace with hash 1308842590, now seen corresponding path program 1 times [2023-10-12 17:25:45,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:25:45,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514536490] [2023-10-12 17:25:45,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:25:45,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:25:45,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:25:45,858 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 17:25:45,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-10-12 17:25:45,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514536490] [2023-10-12 17:25:45,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [514536490] provided 1 perfect and 0 imperfect interpolant sequences [2023-10-12 17:25:45,859 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-10-12 17:25:45,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-10-12 17:25:45,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117597188] [2023-10-12 17:25:45,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-10-12 17:25:45,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-10-12 17:25:45,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-10-12 17:25:45,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-10-12 17:25:45,897 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 2608 transitions, 19104 flow. Second operand has 4 states, 4 states have (on average 1.75) 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 17:25:45,897 INFO L124 encePairwiseOnDemand]: Subtrahend is not yet constructed. Will not use universal subtrahend loopers optimization. [2023-10-12 17:25:45,898 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-10-12 17:25:46,041 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 17:25:46,180 INFO L124 PetriNetUnfolderBase]: 640/993 cut-off events. [2023-10-12 17:25:46,180 INFO L125 PetriNetUnfolderBase]: For 275/275 co-relation queries the response was YES. [2023-10-12 17:25:46,183 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4283 conditions, 993 events. 640/993 cut-off events. For 275/275 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 4237 event pairs, 17 based on Foata normal form. 0/604 useless extension candidates. Maximal degree in co-relation 2880. Up to 349 conditions per place. [2023-10-12 17:25:46,190 INFO L140 encePairwiseOnDemand]: 44/50 looper letters, 255 selfloop transitions, 53 changer transitions 108/416 dead transitions. [2023-10-12 17:25:46,191 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 416 transitions, 3739 flow [2023-10-12 17:25:46,191 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 40 places, 416 transitions, 3739 flow [2023-10-12 17:25:46,275 INFO L124 PetriNetUnfolderBase]: 640/993 cut-off events. [2023-10-12 17:25:46,275 INFO L125 PetriNetUnfolderBase]: For 275/275 co-relation queries the response was YES. [2023-10-12 17:25:46,277 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4283 conditions, 993 events. 640/993 cut-off events. For 275/275 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 4232 event pairs, 17 based on Foata normal form. 0/604 useless extension candidates. Maximal degree in co-relation 2880. Up to 349 conditions per place. [2023-10-12 17:25:46,277 INFO L82 GeneralOperation]: Start removeDeadBuchi. Operand has 40 places, 416 transitions, 3739 flow [2023-10-12 17:25:46,282 INFO L88 GeneralOperation]: Finished RemoveDeadBuchi, result has has 40 places, 416 transitions, 3739 flow [2023-10-12 17:25:46,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-10-12 17:25:46,284 INFO L430 stractBuchiCegarLoop]: Abstraction has has 40 places, 416 transitions, 3739 flow [2023-10-12 17:25:46,284 INFO L337 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-10-12 17:25:46,284 INFO L84 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 40 places, 416 transitions, 3739 flow [2023-10-12 17:25:46,314 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-10-12 17:25:46,315 INFO L124 PetriNetUnfolderBase]: 225/326 cut-off events. [2023-10-12 17:25:46,315 INFO L125 PetriNetUnfolderBase]: For 59/59 co-relation queries the response was YES. [2023-10-12 17:25:46,315 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty language is not empty [2023-10-12 17:25:46,316 INFO L748 eck$LassoCheckResult]: Stem: 43#[$Ultimate##0]true [108] $Ultimate##0-->L52: Formula: (and (= v_i_19 v_res1_19) (= v_i_19 0) (<= 0 v_M_14) (= v_i_19 v_res2_41) (= v_i_19 v_j_25) (= v_M_14 v_k_21) (<= v_M_14 v_N_20)) InVars {N=v_N_20, M=v_M_14, k=v_k_21, res1=v_res1_19, j=v_j_25, i=v_i_19, res2=v_res2_41} OutVars{N=v_N_20, M=v_M_14, k=v_k_21, res1=v_res1_19, j=v_j_25, i=v_i_19, res2=v_res2_41} AuxVars[] AssignedVars[] 45#[L52]true [84] L52-->L21: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0] 47#[L21, L52-1]true [87] L52-1-->L30: Formula: (and (= 2 v_thread2Thread1of1ForFork1_thidvar1_2) (= 2 v_thread2Thread1of1ForFork1_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_2, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_thidvar0, thread2Thread1of1ForFork1_thidvar1] 92#[L21, L30, L53]true [104] L21-->L21: Formula: (and (= v_i_15 (+ v_i_16 1)) (= (+ (select v_A_12 v_i_16) v_res1_14) v_res1_13) (< v_i_16 v_N_14)) InVars {A=v_A_12, N=v_N_14, res1=v_res1_14, i=v_i_16} OutVars{A=v_A_12, N=v_N_14, res1=v_res1_13, i=v_i_15} AuxVars[] AssignedVars[res1, i] 92#[L21, L30, L53]true [90] L53-->L39: Formula: (and (= 3 v_thread3Thread1of1ForFork2_thidvar0_2) (= 3 v_thread3Thread1of1ForFork2_thidvar1_2) (= 3 v_thread3Thread1of1ForFork2_thidvar2_2)) InVars {} OutVars{thread3Thread1of1ForFork2_thidvar2=v_thread3Thread1of1ForFork2_thidvar2_2, thread3Thread1of1ForFork2_thidvar1=v_thread3Thread1of1ForFork2_thidvar1_2, thread3Thread1of1ForFork2_thidvar0=v_thread3Thread1of1ForFork2_thidvar0_2} AuxVars[] AssignedVars[thread3Thread1of1ForFork2_thidvar2, thread3Thread1of1ForFork2_thidvar1, thread3Thread1of1ForFork2_thidvar0] 174#[L54, L39, L21, L30]true [2023-10-12 17:25:46,316 INFO L750 eck$LassoCheckResult]: Loop: 174#[L54, L39, L21, L30]true [107] L39-->L39: Formula: (and (= (+ (select v_A_18 v_k_18) v_res2_38) v_res2_37) (< v_k_18 v_N_18) (= v_k_17 (+ v_k_18 1))) InVars {A=v_A_18, N=v_N_18, k=v_k_18, res2=v_res2_38} OutVars{A=v_A_18, N=v_N_18, k=v_k_17, res2=v_res2_37} AuxVars[] AssignedVars[k, res2] 174#[L54, L39, L21, L30]true [107] L39-->L39: Formula: (and (= (+ (select v_A_18 v_k_18) v_res2_38) v_res2_37) (< v_k_18 v_N_18) (= v_k_17 (+ v_k_18 1))) InVars {A=v_A_18, N=v_N_18, k=v_k_18, res2=v_res2_38} OutVars{A=v_A_18, N=v_N_18, k=v_k_17, res2=v_res2_37} AuxVars[] AssignedVars[k, res2] 174#[L54, L39, L21, L30]true [2023-10-12 17:25:46,319 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:25:46,319 INFO L85 PathProgramCache]: Analyzing trace with hash 130958784, now seen corresponding path program 1 times [2023-10-12 17:25:46,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:25:46,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663998919] [2023-10-12 17:25:46,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:25:46,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:25:46,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:25:46,337 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:25:46,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:25:46,348 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:25:46,349 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:25:46,349 INFO L85 PathProgramCache]: Analyzing trace with hash 4385, now seen corresponding path program 2 times [2023-10-12 17:25:46,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:25:46,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643183635] [2023-10-12 17:25:46,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:25:46,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:25:46,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:25:46,353 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:25:46,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:25:46,356 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:25:46,356 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:25:46,356 INFO L85 PathProgramCache]: Analyzing trace with hash 1297343264, now seen corresponding path program 1 times [2023-10-12 17:25:46,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:25:46,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808160996] [2023-10-12 17:25:46,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:25:46,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:25:46,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:25:46,384 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:25:46,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:25:46,401 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:25:46,545 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:25:46,546 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:25:46,546 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:25:46,546 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:25:46,546 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-10-12 17:25:46,546 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:25:46,546 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:25:46,546 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:25:46,546 INFO L133 ssoRankerPreferences]: Filename of dumped script: array-sum-alt.wvr.bpl_BEv2_Iteration4_Lasso [2023-10-12 17:25:46,546 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:25:46,546 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:25:46,554 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 17:25:46,583 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 17:25:46,586 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 17:25:46,589 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 17:25:46,592 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 17:25:46,594 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 17:25:46,596 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 17:25:46,598 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 17:25:46,601 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 17:25:46,702 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:25:46,703 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-10-12 17:25:46,703 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:25:46,703 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:25:46,704 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 17:25:46,717 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 17:25:46,858 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 17:25:46,864 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:25:46,864 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:25:46,865 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:25:46,865 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:25:46,868 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:25:46,868 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:25:46,884 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-10-12 17:25:46,893 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2023-10-12 17:25:46,893 INFO L444 ModelExtractionUtils]: 3 out of 13 variables were initially zero. Simplification set additionally 7 variables to zero. [2023-10-12 17:25:46,893 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:25:46,894 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:25:46,897 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:25:46,900 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2023-10-12 17:25:46,901 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-10-12 17:25:46,923 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2023-10-12 17:25:46,923 INFO L513 LassoAnalysis]: Proved termination. [2023-10-12 17:25:46,923 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(k, N) = -1*k + 1*N Supporting invariants [] [2023-10-12 17:25:46,949 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2023-10-12 17:25:46,951 INFO L156 tatePredicateManager]: 1 out of 1 supporting invariants were superfluous and have been removed [2023-10-12 17:25:46,961 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:25:46,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:25:46,972 INFO L262 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 2 conjunts are in the unsatisfiable core [2023-10-12 17:25:46,972 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:25:46,989 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2023-10-12 17:25:46,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:25:46,999 INFO L262 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 5 conjunts are in the unsatisfiable core [2023-10-12 17:25:46,999 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:25:47,006 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 17:25:47,007 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 17:25:47,007 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 17:25:47,114 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 385 transitions. [2023-10-12 17:25:47,114 INFO L79 BuchiIntersect]: Starting Intersection [2023-10-12 17:25:47,149 INFO L86 BuchiIntersect]: Exiting Intersection [2023-10-12 17:25:47,149 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 17:25:47,150 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 17:25:47,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 250 transitions. [2023-10-12 17:25:47,152 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 250 transitions. Stem has 5 letters. Loop has 2 letters. [2023-10-12 17:25:47,152 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:25:47,152 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 250 transitions. Stem has 7 letters. Loop has 2 letters. [2023-10-12 17:25:47,152 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:25:47,152 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 250 transitions. Stem has 5 letters. Loop has 4 letters. [2023-10-12 17:25:47,152 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:25:47,152 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 54 places, 6462 transitions, 71196 flow [2023-10-12 17:25:48,154 INFO L124 PetriNetUnfolderBase]: 1417/2171 cut-off events. [2023-10-12 17:25:48,155 INFO L125 PetriNetUnfolderBase]: For 618/618 co-relation queries the response was YES. [2023-10-12 17:25:48,158 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11417 conditions, 2171 events. 1417/2171 cut-off events. For 618/618 co-relation queries the response was YES. Maximal size of possible extension queue 194. Compared 10851 event pairs, 6 based on Foata normal form. 0/1287 useless extension candidates. Maximal degree in co-relation 6858. Up to 797 conditions per place. [2023-10-12 17:25:48,158 INFO L82 GeneralOperation]: Start removeDeadBuchi. Operand has 54 places, 6462 transitions, 71196 flow [2023-10-12 17:25:48,268 INFO L88 GeneralOperation]: Finished RemoveDeadBuchi, result has has 54 places, 6462 transitions, 71196 flow [2023-10-12 17:25:48,269 INFO L430 stractBuchiCegarLoop]: Abstraction has has 54 places, 6462 transitions, 71196 flow [2023-10-12 17:25:48,269 INFO L337 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2023-10-12 17:25:48,269 INFO L84 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 54 places, 6462 transitions, 71196 flow [2023-10-12 17:25:49,178 INFO L124 PetriNetUnfolderBase]: 1417/2171 cut-off events. [2023-10-12 17:25:49,179 INFO L125 PetriNetUnfolderBase]: For 618/618 co-relation queries the response was YES. [2023-10-12 17:25:49,179 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty language is empty [2023-10-12 17:25:49,184 INFO L201 PluginConnector]: Adding new model array-sum-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 12.10 05:25:49 BoogieIcfgContainer [2023-10-12 17:25:49,184 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-10-12 17:25:49,185 INFO L158 Benchmark]: Toolchain (without parser) took 6450.17ms. Allocated memory was 173.0MB in the beginning and 314.6MB in the end (delta: 141.6MB). Free memory was 122.9MB in the beginning and 166.3MB in the end (delta: -43.3MB). Peak memory consumption was 208.4MB. Max. memory is 8.0GB. [2023-10-12 17:25:49,185 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.23ms. Allocated memory is still 173.0MB. Free memory is still 124.0MB. There was no memory consumed. Max. memory is 8.0GB. [2023-10-12 17:25:49,185 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.69ms. Allocated memory is still 173.0MB. Free memory was 122.8MB in the beginning and 121.4MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-10-12 17:25:49,186 INFO L158 Benchmark]: Boogie Preprocessor took 20.23ms. Allocated memory is still 173.0MB. Free memory was 121.4MB in the beginning and 120.2MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-10-12 17:25:49,186 INFO L158 Benchmark]: RCFGBuilder took 242.15ms. Allocated memory is still 173.0MB. Free memory was 120.2MB in the beginning and 110.6MB in the end (delta: 9.6MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2023-10-12 17:25:49,187 INFO L158 Benchmark]: BuchiAutomizer took 6157.16ms. Allocated memory was 173.0MB in the beginning and 314.6MB in the end (delta: 141.6MB). Free memory was 110.4MB in the beginning and 166.3MB in the end (delta: -55.9MB). Peak memory consumption was 194.7MB. Max. memory is 8.0GB. [2023-10-12 17:25:49,188 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 0.23ms. Allocated memory is still 173.0MB. Free memory is still 124.0MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 24.69ms. Allocated memory is still 173.0MB. Free memory was 122.8MB in the beginning and 121.4MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 20.23ms. Allocated memory is still 173.0MB. Free memory was 121.4MB in the beginning and 120.2MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 242.15ms. Allocated memory is still 173.0MB. Free memory was 120.2MB in the beginning and 110.6MB in the end (delta: 9.6MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * BuchiAutomizer took 6157.16ms. Allocated memory was 173.0MB in the beginning and 314.6MB in the end (delta: 141.6MB). Free memory was 110.4MB in the beginning and 166.3MB in the end (delta: -55.9MB). Peak memory consumption was 194.7MB. 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 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 6.0s and 5 iterations. TraceHistogramMax:0. Analysis of lassos took 2.2s. Construction of modules took 0.2s. Büchi inclusion checks took 0.8s. 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, 383 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 380 mSDsluCounter, 324 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 140 mSDsCounter, 18 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 416 IncrementalHoareTripleChecker+Invalid, 434 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 18 mSolverCounterUnsat, 184 mSDtfsCounter, 416 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso3 LassoPreprocessingBenchmarks: Lassos: inital56 mio100 ax100 hnf100 lsp71 ukn87 mio100 lsp69 div100 bol100 ite100 ukn100 eq154 hnf92 smp100 dnf100 smp100 tf100 neg100 sie108 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 62ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.4s - 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: 0.4s, 36 PlacesBefore, 22 PlacesAfterwards, 29 TransitionsBefore, 15 TransitionsAfterwards, 210 CoEnabledTransitionPairs, 2 FixpointIterations, 6 TrivialSequentialCompositions, 9 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 15 TotalNumberOfCompositions, 138 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 138, independent: 138, independent conditional: 0, independent unconditional: 138, 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: 120, independent: 120, independent conditional: 0, independent unconditional: 120, 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: 120, independent: 118, independent conditional: 0, independent unconditional: 118, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 2, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 23, independent: 23, independent conditional: 0, independent unconditional: 23, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 138, independent: 18, independent conditional: 0, independent unconditional: 18, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 120, unknown conditional: 0, unknown unconditional: 120] , 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 17:25:49,207 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...