/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 RABIN_PETRI_NET -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/multiply-verify.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.fs.rabin-petrinet-4c29625-m [2023-10-12 17:40:37,122 INFO L172 SettingsManager]: Resetting all preferences to default values... [2023-10-12 17:40:37,192 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 17:40:37,215 INFO L114 SettingsManager]: Preferences different from defaults after loading the file: [2023-10-12 17:40:37,216 INFO L135 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-10-12 17:40:37,216 INFO L137 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-10-12 17:40:37,217 INFO L135 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-10-12 17:40:37,218 INFO L137 SettingsManager]: * Create parallel compositions if possible=false [2023-10-12 17:40:37,218 INFO L137 SettingsManager]: * Use SBE=true [2023-10-12 17:40:37,221 INFO L135 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-10-12 17:40:37,221 INFO L137 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-10-12 17:40:37,221 INFO L137 SettingsManager]: * Use old map elimination=false [2023-10-12 17:40:37,221 INFO L137 SettingsManager]: * Use external solver (rank synthesis)=false [2023-10-12 17:40:37,223 INFO L137 SettingsManager]: * Use only trivial implications for array writes=true [2023-10-12 17:40:37,223 INFO L137 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-10-12 17:40:37,223 INFO L135 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-10-12 17:40:37,223 INFO L137 SettingsManager]: * sizeof long=4 [2023-10-12 17:40:37,223 INFO L137 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-10-12 17:40:37,224 INFO L137 SettingsManager]: * Overapproximate operations on floating types=true [2023-10-12 17:40:37,224 INFO L137 SettingsManager]: * sizeof POINTER=4 [2023-10-12 17:40:37,224 INFO L137 SettingsManager]: * Check division by zero=IGNORE [2023-10-12 17:40:37,224 INFO L137 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-10-12 17:40:37,225 INFO L137 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-10-12 17:40:37,226 INFO L137 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-10-12 17:40:37,226 INFO L137 SettingsManager]: * sizeof long double=12 [2023-10-12 17:40:37,226 INFO L137 SettingsManager]: * Check if freed pointer was valid=false [2023-10-12 17:40:37,226 INFO L137 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-10-12 17:40:37,226 INFO L137 SettingsManager]: * Use constant arrays=true [2023-10-12 17:40:37,226 INFO L137 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-10-12 17:40:37,226 INFO L135 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-10-12 17:40:37,227 INFO L137 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-10-12 17:40:37,227 INFO L135 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-10-12 17:40:37,227 INFO L137 SettingsManager]: * Trace refinement strategy=CAMEL [2023-10-12 17:40:37,229 INFO L135 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-10-12 17:40:37,229 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: Automaton type for concurrent programs -> RABIN_PETRI_NET [2023-10-12 17:40:37,436 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-10-12 17:40:37,449 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-10-12 17:40:37,451 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-10-12 17:40:37,452 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2023-10-12 17:40:37,453 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2023-10-12 17:40:37,454 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/multiply-verify.wvr.bpl [2023-10-12 17:40:37,454 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/multiply-verify.wvr.bpl' [2023-10-12 17:40:37,475 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-10-12 17:40:37,476 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2023-10-12 17:40:37,477 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-10-12 17:40:37,477 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-10-12 17:40:37,477 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-10-12 17:40:37,488 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "multiply-verify.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:40:37" (1/1) ... [2023-10-12 17:40:37,493 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "multiply-verify.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:40:37" (1/1) ... [2023-10-12 17:40:37,498 INFO L138 Inliner]: procedures = 4, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2023-10-12 17:40:37,499 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-10-12 17:40:37,500 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-10-12 17:40:37,501 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-10-12 17:40:37,502 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-10-12 17:40:37,508 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "multiply-verify.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:40:37" (1/1) ... [2023-10-12 17:40:37,509 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "multiply-verify.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:40:37" (1/1) ... [2023-10-12 17:40:37,509 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "multiply-verify.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:40:37" (1/1) ... [2023-10-12 17:40:37,509 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "multiply-verify.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:40:37" (1/1) ... [2023-10-12 17:40:37,512 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "multiply-verify.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:40:37" (1/1) ... [2023-10-12 17:40:37,515 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "multiply-verify.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:40:37" (1/1) ... [2023-10-12 17:40:37,516 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "multiply-verify.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:40:37" (1/1) ... [2023-10-12 17:40:37,517 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "multiply-verify.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:40:37" (1/1) ... [2023-10-12 17:40:37,518 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-10-12 17:40:37,519 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-10-12 17:40:37,519 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-10-12 17:40:37,519 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-10-12 17:40:37,519 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "multiply-verify.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:40:37" (1/1) ... [2023-10-12 17:40:37,524 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:40:37,530 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:40:37,554 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 17:40:37,559 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 17:40:37,580 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2023-10-12 17:40:37,580 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-10-12 17:40:37,583 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-10-12 17:40:37,583 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2023-10-12 17:40:37,584 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-10-12 17:40:37,584 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-10-12 17:40:37,584 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2023-10-12 17:40:37,584 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-10-12 17:40:37,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-10-12 17:40:37,584 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2023-10-12 17:40:37,585 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-10-12 17:40:37,585 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-10-12 17:40:37,586 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 17:40:37,624 INFO L236 CfgBuilder]: Building ICFG [2023-10-12 17:40:37,625 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-10-12 17:40:37,722 INFO L277 CfgBuilder]: Performing block encoding [2023-10-12 17:40:37,733 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-10-12 17:40:37,733 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-10-12 17:40:37,734 INFO L201 PluginConnector]: Adding new model multiply-verify.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:40:37 BoogieIcfgContainer [2023-10-12 17:40:37,734 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-10-12 17:40:37,735 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-10-12 17:40:37,735 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-10-12 17:40:37,740 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-10-12 17:40:37,741 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-10-12 17:40:37,741 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "multiply-verify.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:40:37" (1/2) ... [2023-10-12 17:40:37,743 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5579962f and model type multiply-verify.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 12.10 05:40:37, skipping insertion in model container [2023-10-12 17:40:37,743 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-10-12 17:40:37,743 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "multiply-verify.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:40:37" (2/2) ... [2023-10-12 17:40:37,747 INFO L332 chiAutomizerObserver]: Analyzing ICFG multiply-verify.wvr.bpl [2023-10-12 17:40:37,822 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-10-12 17:40:37,840 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 41 places, 36 transitions, 96 flow [2023-10-12 17:40:37,859 INFO L124 PetriNetUnfolderBase]: 2/30 cut-off events. [2023-10-12 17:40:37,859 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-10-12 17:40:37,863 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43 conditions, 30 events. 2/30 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 56 event pairs, 0 based on Foata normal form. 0/27 useless extension candidates. Maximal degree in co-relation 25. Up to 2 conditions per place. [2023-10-12 17:40:37,863 INFO L82 GeneralOperation]: Start removeDead. Operand has 41 places, 36 transitions, 96 flow [2023-10-12 17:40:37,866 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 38 places, 30 transitions, 78 flow [2023-10-12 17:40:37,868 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-10-12 17:40:37,879 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 38 places, 30 transitions, 78 flow [2023-10-12 17:40:37,881 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 38 places, 30 transitions, 78 flow [2023-10-12 17:40:37,882 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 38 places, 30 transitions, 78 flow [2023-10-12 17:40:37,888 INFO L124 PetriNetUnfolderBase]: 2/30 cut-off events. [2023-10-12 17:40:37,888 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-10-12 17:40:37,889 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43 conditions, 30 events. 2/30 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 56 event pairs, 0 based on Foata normal form. 0/27 useless extension candidates. Maximal degree in co-relation 25. Up to 2 conditions per place. [2023-10-12 17:40:37,890 INFO L119 LiptonReduction]: Number of co-enabled transitions 300 [2023-10-12 17:40:38,306 INFO L134 LiptonReduction]: Checked pairs total: 225 [2023-10-12 17:40:38,306 INFO L136 LiptonReduction]: Total number of compositions: 15 [2023-10-12 17:40:38,315 INFO L305 stractBuchiCegarLoop]: Interprodecural is true [2023-10-12 17:40:38,315 INFO L306 stractBuchiCegarLoop]: Hoare is false [2023-10-12 17:40:38,315 INFO L307 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-10-12 17:40:38,315 INFO L308 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-10-12 17:40:38,315 INFO L309 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-10-12 17:40:38,316 INFO L310 stractBuchiCegarLoop]: Difference is false [2023-10-12 17:40:38,316 INFO L311 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-10-12 17:40:38,316 INFO L315 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == RabinPetriNetCegarLoop ======== [2023-10-12 17:40:38,316 INFO L67 RabinIsEmpty]: Start rabinIsEmpty. Operand has 24 places, 16 transitions, 50 flow [2023-10-12 17:40:38,319 ERROR L47 etriNetUnfolderRabin]: [1:1A:[67] $Ultimate##0-->L61: Formula: (= v_end_7 v_start_1) InVars {end=v_end_7, start=v_start_1} OutVars{end=v_end_7, start=v_start_1} AuxVars[] AssignedVars[][6], 2:2A:[93] L61-->$Ultimate##0: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0][0], 4:3A:[105] $Ultimate##0-->L25-1: Formula: (and (= v_x1_7 0) (= v_i1_6 0)) InVars {} OutVars{i1=v_i1_6, x1=v_x1_7} AuxVars[] AssignedVars[i1, x1][7]][5:4A:[115] L25-1-->L25-1: Formula: (and (< v_i1_15 v_A_15) (= (+ v_B_9 v_x1_20) v_x1_19) (= v_i1_14 (+ v_i1_15 1))) InVars {A=v_A_15, i1=v_i1_15, x1=v_x1_20, B=v_B_9} OutVars{A=v_A_15, i1=v_i1_14, x1=v_x1_19, B=v_B_9} AuxVars[] AssignedVars[i1, x1][10]] [2023-10-12 17:40:38,320 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-10-12 17:40:38,321 INFO L124 PetriNetUnfolderBase]: 0/4 cut-off events. [2023-10-12 17:40:38,321 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-10-12 17:40:38,321 INFO L72 RabinIsEmpty]: Finished rabinIsEmpty language is not empty [2023-10-12 17:40:38,323 INFO L337 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-10-12 17:40:38,323 INFO L67 RabinIsEmpty]: Start rabinIsEmpty. Operand has 24 places, 16 transitions, 50 flow [2023-10-12 17:40:38,324 ERROR L47 etriNetUnfolderRabin]: [1:1A:[67] $Ultimate##0-->L61: Formula: (= v_end_7 v_start_1) InVars {end=v_end_7, start=v_start_1} OutVars{end=v_end_7, start=v_start_1} AuxVars[] AssignedVars[][6], 2:2A:[93] L61-->$Ultimate##0: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0][0], 4:3A:[105] $Ultimate##0-->L25-1: Formula: (and (= v_x1_7 0) (= v_i1_6 0)) InVars {} OutVars{i1=v_i1_6, x1=v_x1_7} AuxVars[] AssignedVars[i1, x1][7]][5:4A:[115] L25-1-->L25-1: Formula: (and (< v_i1_15 v_A_15) (= (+ v_B_9 v_x1_20) v_x1_19) (= v_i1_14 (+ v_i1_15 1))) InVars {A=v_A_15, i1=v_i1_15, x1=v_x1_20, B=v_B_9} OutVars{A=v_A_15, i1=v_i1_14, x1=v_x1_19, B=v_B_9} AuxVars[] AssignedVars[i1, x1][10]] [2023-10-12 17:40:38,324 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-10-12 17:40:38,324 INFO L124 PetriNetUnfolderBase]: 0/4 cut-off events. [2023-10-12 17:40:38,324 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-10-12 17:40:38,325 INFO L72 RabinIsEmpty]: Finished rabinIsEmpty language is not empty [2023-10-12 17:40:38,328 INFO L748 eck$LassoCheckResult]: Stem: 45#[$Ultimate##0]true [67] $Ultimate##0-->L61: Formula: (= v_end_7 v_start_1) InVars {end=v_end_7, start=v_start_1} OutVars{end=v_end_7, start=v_start_1} AuxVars[] AssignedVars[] 47#[L61]true [93] L61-->$Ultimate##0: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0] 49#[L61-1, $Ultimate##0]true [105] $Ultimate##0-->L25-1: Formula: (and (= v_x1_7 0) (= v_i1_6 0)) InVars {} OutVars{i1=v_i1_6, x1=v_x1_7} AuxVars[] AssignedVars[i1, x1] 51#[L61-1, L25-1]true [2023-10-12 17:40:38,328 INFO L750 eck$LassoCheckResult]: Loop: 51#[L61-1, L25-1]true [115] L25-1-->L25-1: Formula: (and (< v_i1_15 v_A_15) (= (+ v_B_9 v_x1_20) v_x1_19) (= v_i1_14 (+ v_i1_15 1))) InVars {A=v_A_15, i1=v_i1_15, x1=v_x1_20, B=v_B_9} OutVars{A=v_A_15, i1=v_i1_14, x1=v_x1_19, B=v_B_9} AuxVars[] AssignedVars[i1, x1] 51#[L61-1, L25-1]true [2023-10-12 17:40:38,332 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:40:38,332 INFO L85 PathProgramCache]: Analyzing trace with hash 97166, now seen corresponding path program 1 times [2023-10-12 17:40:38,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:40:38,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045466265] [2023-10-12 17:40:38,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:40:38,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:40:38,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:40:38,434 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:40:38,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:40:38,457 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:40:38,460 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:40:38,460 INFO L85 PathProgramCache]: Analyzing trace with hash 146, now seen corresponding path program 1 times [2023-10-12 17:40:38,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:40:38,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937895372] [2023-10-12 17:40:38,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:40:38,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:40:38,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:40:38,473 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:40:38,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:40:38,484 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:40:38,485 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:40:38,485 INFO L85 PathProgramCache]: Analyzing trace with hash 3012261, now seen corresponding path program 1 times [2023-10-12 17:40:38,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:40:38,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359397434] [2023-10-12 17:40:38,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:40:38,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:40:38,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:40:38,490 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:40:38,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:40:38,495 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:40:38,535 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:40:38,536 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:40:38,536 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:40:38,536 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:40:38,536 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-10-12 17:40:38,536 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:40:38,536 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:40:38,536 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:40:38,537 INFO L133 ssoRankerPreferences]: Filename of dumped script: multiply-verify.wvr.bpl_BEv2_Iteration1_Loop [2023-10-12 17:40:38,537 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:40:38,537 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:40:38,546 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 17:40:38,562 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 17:40:38,590 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:40:38,590 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-10-12 17:40:38,592 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:40:38,592 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:40:38,593 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 17:40:38,595 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 17:40:38,596 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:40:38,596 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:40:38,618 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2023-10-12 17:40:38,618 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:40:38,618 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:40:38,619 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 17:40:38,621 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 17:40:38,622 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-10-12 17:40:38,622 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:40:38,730 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-10-12 17:40:38,735 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 17:40:38,736 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:40:38,736 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:40:38,736 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:40:38,736 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:40:38,736 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-10-12 17:40:38,736 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:40:38,736 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:40:38,736 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:40:38,736 INFO L133 ssoRankerPreferences]: Filename of dumped script: multiply-verify.wvr.bpl_BEv2_Iteration1_Loop [2023-10-12 17:40:38,736 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:40:38,737 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:40:38,737 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 17:40:38,752 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 17:40:38,775 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:40:38,778 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-10-12 17:40:38,779 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:40:38,779 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:40:38,780 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 17:40:38,783 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 17:40:38,784 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 17:40:38,791 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:40:38,791 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-10-12 17:40:38,792 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:40:38,792 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:40:38,792 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:40:38,794 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-10-12 17:40:38,794 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-10-12 17:40:38,813 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-10-12 17:40:38,834 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2023-10-12 17:40:38,834 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-10-12 17:40:38,835 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:40:38,835 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:40:38,982 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 17:40:38,983 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 17:40:39,048 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-10-12 17:40:39,048 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-10-12 17:40:39,049 INFO L513 LassoAnalysis]: Proved termination. [2023-10-12 17:40:39,049 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(i1, A) = -1*i1 + 1*A Supporting invariants [] [2023-10-12 17:40:39,078 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2023-10-12 17:40:39,080 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-10-12 17:40:39,097 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:40:39,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:40:39,108 INFO L262 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjunts are in the unsatisfiable core [2023-10-12 17:40:39,109 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:40:39,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:40:39,126 WARN L260 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2023-10-12 17:40:39,126 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:40:39,127 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 17:40:39,153 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 17:40:39,230 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 17:40:39,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-10-12 17:40:39,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 200 transitions. [2023-10-12 17:40:39,241 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 200 transitions. Stem has 3 letters. Loop has 1 letters. [2023-10-12 17:40:39,242 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:40:39,243 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 200 transitions. Stem has 4 letters. Loop has 1 letters. [2023-10-12 17:40:39,245 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:40:39,245 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 200 transitions. Stem has 3 letters. Loop has 2 letters. [2023-10-12 17:40:39,247 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:40:39,247 INFO L430 stractBuchiCegarLoop]: Abstraction has has 29 places, 80 transitions, 410 flow [2023-10-12 17:40:39,248 INFO L337 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-10-12 17:40:39,248 INFO L67 RabinIsEmpty]: Start rabinIsEmpty. Operand has 29 places, 80 transitions, 410 flow [2023-10-12 17:40:39,252 ERROR L47 etriNetUnfolderRabin]: [1:1A:[67] $Ultimate##0-->L61: Formula: (= v_end_7 v_start_1) InVars {end=v_end_7, start=v_start_1} OutVars{end=v_end_7, start=v_start_1} AuxVars[] AssignedVars[][32], 2:2A:[93] L61-->$Ultimate##0: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0][2], 3:3A:[96] L61-1-->$Ultimate##0: 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][17], 14:4A:[111] $Ultimate##0-->L40-1: Formula: (and (= v_x2_15 0) (= v_i2_10 0)) InVars {} OutVars{x2=v_x2_15, i2=v_i2_10} AuxVars[] AssignedVars[x2, i2][47]][16:5A:[114] L40-1-->L40-1: Formula: (and (= v_i2_14 (+ v_i2_15 1)) (= v_x2_19 (+ v_B_7 v_x2_20)) (< v_i2_15 v_A_13)) InVars {A=v_A_13, x2=v_x2_20, i2=v_i2_15, B=v_B_7} OutVars{A=v_A_13, x2=v_x2_19, i2=v_i2_14, B=v_B_7} AuxVars[] AssignedVars[x2, i2][62]] [2023-10-12 17:40:39,252 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-10-12 17:40:39,252 INFO L124 PetriNetUnfolderBase]: 7/15 cut-off events. [2023-10-12 17:40:39,252 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-10-12 17:40:39,252 INFO L72 RabinIsEmpty]: Finished rabinIsEmpty language is not empty [2023-10-12 17:40:39,253 INFO L748 eck$LassoCheckResult]: Stem: 45#[$Ultimate##0]true [67] $Ultimate##0-->L61: Formula: (= v_end_7 v_start_1) InVars {end=v_end_7, start=v_start_1} OutVars{end=v_end_7, start=v_start_1} AuxVars[] AssignedVars[] 47#[L61]true [93] L61-->$Ultimate##0: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0] 49#[L61-1, $Ultimate##0]true [96] L61-1-->$Ultimate##0: 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] 91#[$Ultimate##0, L62, $Ultimate##0]true [111] $Ultimate##0-->L40-1: Formula: (and (= v_x2_15 0) (= v_i2_10 0)) InVars {} OutVars{x2=v_x2_15, i2=v_i2_10} AuxVars[] AssignedVars[x2, i2] 93#[L62, $Ultimate##0, L40-1]true [2023-10-12 17:40:39,253 INFO L750 eck$LassoCheckResult]: Loop: 93#[L62, $Ultimate##0, L40-1]true [114] L40-1-->L40-1: Formula: (and (= v_i2_14 (+ v_i2_15 1)) (= v_x2_19 (+ v_B_7 v_x2_20)) (< v_i2_15 v_A_13)) InVars {A=v_A_13, x2=v_x2_20, i2=v_i2_15, B=v_B_7} OutVars{A=v_A_13, x2=v_x2_19, i2=v_i2_14, B=v_B_7} AuxVars[] AssignedVars[x2, i2] 93#[L62, $Ultimate##0, L40-1]true [2023-10-12 17:40:39,253 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:40:39,253 INFO L85 PathProgramCache]: Analyzing trace with hash 3011978, now seen corresponding path program 1 times [2023-10-12 17:40:39,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:40:39,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264084585] [2023-10-12 17:40:39,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:40:39,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:40:39,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:40:39,257 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:40:39,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:40:39,260 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:40:39,260 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:40:39,260 INFO L85 PathProgramCache]: Analyzing trace with hash 145, now seen corresponding path program 1 times [2023-10-12 17:40:39,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:40:39,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181971432] [2023-10-12 17:40:39,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:40:39,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:40:39,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:40:39,264 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:40:39,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:40:39,269 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:40:39,269 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:40:39,269 INFO L85 PathProgramCache]: Analyzing trace with hash 93371432, now seen corresponding path program 1 times [2023-10-12 17:40:39,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:40:39,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707377879] [2023-10-12 17:40:39,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:40:39,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:40:39,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:40:39,274 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:40:39,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:40:39,278 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:40:39,292 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:40:39,292 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:40:39,292 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:40:39,292 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:40:39,292 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-10-12 17:40:39,293 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:40:39,293 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:40:39,293 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:40:39,293 INFO L133 ssoRankerPreferences]: Filename of dumped script: multiply-verify.wvr.bpl_BEv2_Iteration2_Loop [2023-10-12 17:40:39,293 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:40:39,293 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:40:39,294 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 17:40:39,296 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 17:40:39,316 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:40:39,316 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-10-12 17:40:39,316 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:40:39,316 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:40:39,317 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 17:40:39,319 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 17:40:39,322 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:40:39,323 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:40:39,345 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-10-12 17:40:39,345 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {x2=0, B=0} Honda state: {x2=0, B=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-10-12 17:40:39,351 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 17:40:39,352 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:40:39,352 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:40:39,353 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 17:40:39,355 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 17:40:39,356 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:40:39,356 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:40:39,381 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2023-10-12 17:40:39,383 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:40:39,383 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:40:39,385 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 17:40:39,392 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-10-12 17:40:39,392 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:40:39,409 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 17:40:39,499 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-10-12 17:40:39,513 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 17:40:39,514 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:40:39,514 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:40:39,514 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:40:39,514 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:40:39,514 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-10-12 17:40:39,514 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:40:39,514 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:40:39,514 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:40:39,514 INFO L133 ssoRankerPreferences]: Filename of dumped script: multiply-verify.wvr.bpl_BEv2_Iteration2_Loop [2023-10-12 17:40:39,515 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:40:39,515 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:40:39,515 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 17:40:39,521 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 17:40:39,546 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:40:39,546 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-10-12 17:40:39,546 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:40:39,547 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:40:39,549 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 17:40:39,564 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 17:40:39,571 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:40:39,571 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-10-12 17:40:39,571 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:40:39,571 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:40:39,571 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:40:39,572 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-10-12 17:40:39,572 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-10-12 17:40:39,576 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 17:40:39,577 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:40:39,596 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 17:40:39,596 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:40:39,596 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:40:39,599 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 17:40:39,612 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 17:40:39,619 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:40:39,619 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-10-12 17:40:39,619 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:40:39,619 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:40:39,619 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:40:39,621 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-10-12 17:40:39,621 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-10-12 17:40:39,623 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 17:40:39,632 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-10-12 17:40:39,636 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2023-10-12 17:40:39,636 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-10-12 17:40:39,636 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:40:39,637 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:40:39,642 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 17:40:39,657 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 17:40:39,657 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-10-12 17:40:39,659 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-10-12 17:40:39,659 INFO L513 LassoAnalysis]: Proved termination. [2023-10-12 17:40:39,659 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(A, i2) = 1*A - 1*i2 Supporting invariants [] [2023-10-12 17:40:39,665 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 17:40:39,666 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-10-12 17:40:39,681 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:40:39,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:40:39,690 INFO L262 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 2 conjunts are in the unsatisfiable core [2023-10-12 17:40:39,690 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:40:39,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:40:39,699 WARN L260 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2023-10-12 17:40:39,700 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:40:39,700 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 17:40:39,701 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 17:40:39,775 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 17:40:39,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-10-12 17:40:39,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 200 transitions. [2023-10-12 17:40:39,776 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 200 transitions. Stem has 4 letters. Loop has 1 letters. [2023-10-12 17:40:39,776 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:40:39,777 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 200 transitions. Stem has 5 letters. Loop has 1 letters. [2023-10-12 17:40:39,777 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:40:39,777 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 200 transitions. Stem has 4 letters. Loop has 2 letters. [2023-10-12 17:40:39,777 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:40:39,777 INFO L430 stractBuchiCegarLoop]: Abstraction has has 34 places, 400 transitions, 2850 flow [2023-10-12 17:40:39,777 INFO L337 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-10-12 17:40:39,777 INFO L67 RabinIsEmpty]: Start rabinIsEmpty. Operand has 34 places, 400 transitions, 2850 flow [2023-10-12 17:40:39,813 INFO L124 PetriNetUnfolderBase]: 105/165 cut-off events. [2023-10-12 17:40:39,814 INFO L125 PetriNetUnfolderBase]: For 34/34 co-relation queries the response was YES. [2023-10-12 17:40:39,814 INFO L72 RabinIsEmpty]: Finished rabinIsEmpty language is empty [2023-10-12 17:40:39,818 INFO L201 PluginConnector]: Adding new model multiply-verify.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 12.10 05:40:39 BoogieIcfgContainer [2023-10-12 17:40:39,818 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-10-12 17:40:39,819 INFO L158 Benchmark]: Toolchain (without parser) took 2342.21ms. Allocated memory was 204.5MB in the beginning and 296.7MB in the end (delta: 92.3MB). Free memory was 156.8MB in the beginning and 207.9MB in the end (delta: -51.0MB). Peak memory consumption was 41.3MB. Max. memory is 8.0GB. [2023-10-12 17:40:39,819 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.22ms. Allocated memory is still 204.5MB. Free memory is still 158.0MB. There was no memory consumed. Max. memory is 8.0GB. [2023-10-12 17:40:39,819 INFO L158 Benchmark]: Boogie Procedure Inliner took 22.59ms. Allocated memory is still 204.5MB. Free memory was 156.8MB in the beginning and 155.3MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-10-12 17:40:39,820 INFO L158 Benchmark]: Boogie Preprocessor took 17.61ms. Allocated memory is still 204.5MB. Free memory was 155.3MB in the beginning and 154.1MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-10-12 17:40:39,820 INFO L158 Benchmark]: RCFGBuilder took 215.94ms. Allocated memory is still 204.5MB. Free memory was 154.1MB in the beginning and 144.2MB in the end (delta: 9.9MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2023-10-12 17:40:39,820 INFO L158 Benchmark]: BuchiAutomizer took 2082.96ms. Allocated memory was 204.5MB in the beginning and 296.7MB in the end (delta: 92.3MB). Free memory was 144.1MB in the beginning and 207.9MB in the end (delta: -63.8MB). Peak memory consumption was 28.7MB. Max. memory is 8.0GB. [2023-10-12 17:40:39,822 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 0.22ms. Allocated memory is still 204.5MB. Free memory is still 158.0MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 22.59ms. Allocated memory is still 204.5MB. Free memory was 156.8MB in the beginning and 155.3MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 17.61ms. Allocated memory is still 204.5MB. Free memory was 155.3MB in the beginning and 154.1MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 215.94ms. Allocated memory is still 204.5MB. Free memory was 154.1MB in the beginning and 144.2MB in the end (delta: 9.9MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * BuchiAutomizer took 2082.96ms. Allocated memory was 204.5MB in the beginning and 296.7MB in the end (delta: 92.3MB). Free memory was 144.1MB in the beginning and 207.9MB in the end (delta: -63.8MB). Peak memory consumption was 28.7MB. 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 2 terminating modules (0 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function A + -1 * i1 and consists of 4 locations. One deterministic module has affine ranking function -1 * i2 + A and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.9s and 3 iterations. TraceHistogramMax:0. Analysis of lassos took 1.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 0. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 183 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 181 mSDsluCounter, 140 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 42 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 150 IncrementalHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 98 mSDtfsCounter, 150 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital15 mio100 ax100 hnf100 lsp66 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 270ms VariablesStem: 0 VariablesLoop: 3 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 1 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.3s 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, 38 PlacesBefore, 24 PlacesAfterwards, 30 TransitionsBefore, 16 TransitionsAfterwards, 300 CoEnabledTransitionPairs, 2 FixpointIterations, 3 TrivialSequentialCompositions, 12 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 15 TotalNumberOfCompositions, 225 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 195, independent: 189, independent conditional: 0, independent unconditional: 189, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 171, independent: 165, independent conditional: 0, independent unconditional: 165, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 171, independent: 165, independent conditional: 0, independent unconditional: 165, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 6, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 51, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 51, dependent conditional: 0, dependent unconditional: 51, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 195, independent: 24, independent conditional: 0, independent unconditional: 24, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 171, unknown conditional: 0, unknown unconditional: 171] , Statistics on independence cache: Total cache size (in pairs): 12, Positive cache size: 9, Positive conditional cache size: 0, Positive unconditional cache size: 9, Negative cache size: 3, Negative conditional cache size: 0, Negative unconditional cache size: 3, 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 17:40:39,846 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2023-10-12 17:40:40,047 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 17:40:40,251 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...