/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/mult-4.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.fs.rabin-petrinet-4c29625-m [2023-10-12 17:41:53,122 INFO L172 SettingsManager]: Resetting all preferences to default values... [2023-10-12 17:41:53,191 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 17:41:53,223 INFO L114 SettingsManager]: Preferences different from defaults after loading the file: [2023-10-12 17:41:53,224 INFO L135 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-10-12 17:41:53,224 INFO L137 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-10-12 17:41:53,225 INFO L135 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-10-12 17:41:53,226 INFO L137 SettingsManager]: * Create parallel compositions if possible=false [2023-10-12 17:41:53,226 INFO L137 SettingsManager]: * Use SBE=true [2023-10-12 17:41:53,228 INFO L135 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-10-12 17:41:53,228 INFO L137 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-10-12 17:41:53,229 INFO L137 SettingsManager]: * Use old map elimination=false [2023-10-12 17:41:53,229 INFO L137 SettingsManager]: * Use external solver (rank synthesis)=false [2023-10-12 17:41:53,229 INFO L137 SettingsManager]: * Use only trivial implications for array writes=true [2023-10-12 17:41:53,229 INFO L137 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-10-12 17:41:53,230 INFO L135 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-10-12 17:41:53,230 INFO L137 SettingsManager]: * sizeof long=4 [2023-10-12 17:41:53,230 INFO L137 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-10-12 17:41:53,230 INFO L137 SettingsManager]: * Overapproximate operations on floating types=true [2023-10-12 17:41:53,231 INFO L137 SettingsManager]: * sizeof POINTER=4 [2023-10-12 17:41:53,231 INFO L137 SettingsManager]: * Check division by zero=IGNORE [2023-10-12 17:41:53,231 INFO L137 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-10-12 17:41:53,231 INFO L137 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-10-12 17:41:53,232 INFO L137 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-10-12 17:41:53,232 INFO L137 SettingsManager]: * sizeof long double=12 [2023-10-12 17:41:53,232 INFO L137 SettingsManager]: * Check if freed pointer was valid=false [2023-10-12 17:41:53,232 INFO L137 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-10-12 17:41:53,232 INFO L137 SettingsManager]: * Use constant arrays=true [2023-10-12 17:41:53,233 INFO L137 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-10-12 17:41:53,233 INFO L135 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-10-12 17:41:53,233 INFO L137 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-10-12 17:41:53,233 INFO L135 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-10-12 17:41:53,233 INFO L137 SettingsManager]: * Trace refinement strategy=CAMEL [2023-10-12 17:41:53,234 INFO L135 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-10-12 17:41:53,234 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: Automaton type for concurrent programs -> RABIN_PETRI_NET [2023-10-12 17:41:53,401 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-10-12 17:41:53,424 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-10-12 17:41:53,427 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-10-12 17:41:53,427 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2023-10-12 17:41:53,428 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2023-10-12 17:41:53,429 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/mult-4.wvr.bpl [2023-10-12 17:41:53,429 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/mult-4.wvr.bpl' [2023-10-12 17:41:53,460 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-10-12 17:41:53,461 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2023-10-12 17:41:53,462 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-10-12 17:41:53,462 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-10-12 17:41:53,462 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-10-12 17:41:53,472 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "mult-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:41:53" (1/1) ... [2023-10-12 17:41:53,479 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "mult-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:41:53" (1/1) ... [2023-10-12 17:41:53,484 INFO L138 Inliner]: procedures = 5, calls = 4, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2023-10-12 17:41:53,485 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-10-12 17:41:53,486 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-10-12 17:41:53,487 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-10-12 17:41:53,487 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-10-12 17:41:53,493 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "mult-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:41:53" (1/1) ... [2023-10-12 17:41:53,494 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "mult-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:41:53" (1/1) ... [2023-10-12 17:41:53,495 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "mult-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:41:53" (1/1) ... [2023-10-12 17:41:53,495 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "mult-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:41:53" (1/1) ... [2023-10-12 17:41:53,500 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "mult-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:41:53" (1/1) ... [2023-10-12 17:41:53,503 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "mult-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:41:53" (1/1) ... [2023-10-12 17:41:53,504 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "mult-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:41:53" (1/1) ... [2023-10-12 17:41:53,505 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "mult-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:41:53" (1/1) ... [2023-10-12 17:41:53,509 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-10-12 17:41:53,510 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-10-12 17:41:53,510 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-10-12 17:41:53,510 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-10-12 17:41:53,511 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "mult-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:41:53" (1/1) ... [2023-10-12 17:41:53,516 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:41:53,523 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:41:53,546 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 17:41:53,564 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 17:41:53,577 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2023-10-12 17:41:53,577 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-10-12 17:41:53,577 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-10-12 17:41:53,577 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2023-10-12 17:41:53,577 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-10-12 17:41:53,577 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-10-12 17:41:53,577 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2023-10-12 17:41:53,578 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-10-12 17:41:53,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-10-12 17:41:53,578 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2023-10-12 17:41:53,578 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-10-12 17:41:53,578 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-10-12 17:41:53,579 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2023-10-12 17:41:53,579 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2023-10-12 17:41:53,579 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2023-10-12 17:41:53,580 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 17:41:53,629 INFO L236 CfgBuilder]: Building ICFG [2023-10-12 17:41:53,631 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-10-12 17:41:53,724 INFO L277 CfgBuilder]: Performing block encoding [2023-10-12 17:41:53,743 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-10-12 17:41:53,744 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-10-12 17:41:53,745 INFO L201 PluginConnector]: Adding new model mult-4.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:41:53 BoogieIcfgContainer [2023-10-12 17:41:53,745 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-10-12 17:41:53,746 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-10-12 17:41:53,746 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-10-12 17:41:53,750 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-10-12 17:41:53,750 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-10-12 17:41:53,750 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "mult-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:41:53" (1/2) ... [2023-10-12 17:41:53,754 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2371c214 and model type mult-4.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 12.10 05:41:53, skipping insertion in model container [2023-10-12 17:41:53,754 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-10-12 17:41:53,754 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "mult-4.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:41:53" (2/2) ... [2023-10-12 17:41:53,756 INFO L332 chiAutomizerObserver]: Analyzing ICFG mult-4.wvr.bpl [2023-10-12 17:41:53,846 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-10-12 17:41:53,882 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 45 places, 40 transitions, 112 flow [2023-10-12 17:41:53,906 INFO L124 PetriNetUnfolderBase]: 4/32 cut-off events. [2023-10-12 17:41:53,906 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-10-12 17:41:53,910 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49 conditions, 32 events. 4/32 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 50 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 17:41:53,910 INFO L82 GeneralOperation]: Start removeDead. Operand has 45 places, 40 transitions, 112 flow [2023-10-12 17:41:53,914 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 41 places, 32 transitions, 88 flow [2023-10-12 17:41:53,917 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-10-12 17:41:53,931 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 41 places, 32 transitions, 88 flow [2023-10-12 17:41:53,933 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 41 places, 32 transitions, 88 flow [2023-10-12 17:41:53,933 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 41 places, 32 transitions, 88 flow [2023-10-12 17:41:53,953 INFO L124 PetriNetUnfolderBase]: 4/32 cut-off events. [2023-10-12 17:41:53,953 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-10-12 17:41:53,954 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49 conditions, 32 events. 4/32 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 50 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 17:41:53,954 INFO L119 LiptonReduction]: Number of co-enabled transitions 288 [2023-10-12 17:41:54,228 INFO L134 LiptonReduction]: Checked pairs total: 207 [2023-10-12 17:41:54,228 INFO L136 LiptonReduction]: Total number of compositions: 14 [2023-10-12 17:41:54,239 INFO L305 stractBuchiCegarLoop]: Interprodecural is true [2023-10-12 17:41:54,239 INFO L306 stractBuchiCegarLoop]: Hoare is false [2023-10-12 17:41:54,239 INFO L307 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-10-12 17:41:54,240 INFO L308 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-10-12 17:41:54,240 INFO L309 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-10-12 17:41:54,240 INFO L310 stractBuchiCegarLoop]: Difference is false [2023-10-12 17:41:54,240 INFO L311 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-10-12 17:41:54,240 INFO L315 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == RabinPetriNetCegarLoop ======== [2023-10-12 17:41:54,241 INFO L67 RabinIsEmpty]: Start rabinIsEmpty. Operand has 28 places, 19 transitions, 62 flow [2023-10-12 17:41:54,243 ERROR L47 etriNetUnfolderRabin]: [1:1A:[133] $Ultimate##0-->L73: Formula: (and (= v_M1_10 v_N1_10) (= v_counter_59 0) (= v_i1_18 v_j2_22) (= v_i1_18 0) (< 0 v_C_28) (= v_i1_18 v_j1_18) (= v_i1_18 v_i2_22) (= v_M2_10 v_N1_10) (= v_N2_10 v_N1_10)) InVars {counter=v_counter_59, i1=v_i1_18, j2=v_j2_22, i2=v_i2_22, j1=v_j1_18, N2=v_N2_10, M1=v_M1_10, M2=v_M2_10, C=v_C_28, N1=v_N1_10} OutVars{counter=v_counter_59, i1=v_i1_18, j2=v_j2_22, i2=v_i2_22, j1=v_j1_18, N2=v_N2_10, M1=v_M1_10, M2=v_M2_10, C=v_C_28, N1=v_N1_10} AuxVars[] AssignedVars[][17], 2:2A:[106] L73-->L24-1: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0][7]][3:3A:[126] L24-1-->L24-1: Formula: (and (= v_counter_45 (+ v_counter_46 v_C_22)) (= v_i1_12 (+ v_i1_13 1)) (< v_i1_13 v_N1_8)) InVars {counter=v_counter_46, i1=v_i1_13, C=v_C_22, N1=v_N1_8} OutVars{counter=v_counter_45, i1=v_i1_12, C=v_C_22, N1=v_N1_8} AuxVars[] AssignedVars[counter, i1][11]] [2023-10-12 17:41:54,245 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-10-12 17:41:54,245 INFO L124 PetriNetUnfolderBase]: 0/2 cut-off events. [2023-10-12 17:41:54,245 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-10-12 17:41:54,245 INFO L72 RabinIsEmpty]: Finished rabinIsEmpty language is not empty [2023-10-12 17:41:54,248 INFO L337 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-10-12 17:41:54,248 INFO L67 RabinIsEmpty]: Start rabinIsEmpty. Operand has 28 places, 19 transitions, 62 flow [2023-10-12 17:41:54,248 ERROR L47 etriNetUnfolderRabin]: [1:1A:[133] $Ultimate##0-->L73: Formula: (and (= v_M1_10 v_N1_10) (= v_counter_59 0) (= v_i1_18 v_j2_22) (= v_i1_18 0) (< 0 v_C_28) (= v_i1_18 v_j1_18) (= v_i1_18 v_i2_22) (= v_M2_10 v_N1_10) (= v_N2_10 v_N1_10)) InVars {counter=v_counter_59, i1=v_i1_18, j2=v_j2_22, i2=v_i2_22, j1=v_j1_18, N2=v_N2_10, M1=v_M1_10, M2=v_M2_10, C=v_C_28, N1=v_N1_10} OutVars{counter=v_counter_59, i1=v_i1_18, j2=v_j2_22, i2=v_i2_22, j1=v_j1_18, N2=v_N2_10, M1=v_M1_10, M2=v_M2_10, C=v_C_28, N1=v_N1_10} AuxVars[] AssignedVars[][17], 2:2A:[106] L73-->L24-1: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0][7]][3:3A:[126] L24-1-->L24-1: Formula: (and (= v_counter_45 (+ v_counter_46 v_C_22)) (= v_i1_12 (+ v_i1_13 1)) (< v_i1_13 v_N1_8)) InVars {counter=v_counter_46, i1=v_i1_13, C=v_C_22, N1=v_N1_8} OutVars{counter=v_counter_45, i1=v_i1_12, C=v_C_22, N1=v_N1_8} AuxVars[] AssignedVars[counter, i1][11]] [2023-10-12 17:41:54,249 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-10-12 17:41:54,249 INFO L124 PetriNetUnfolderBase]: 0/2 cut-off events. [2023-10-12 17:41:54,249 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-10-12 17:41:54,249 INFO L72 RabinIsEmpty]: Finished rabinIsEmpty language is not empty [2023-10-12 17:41:54,253 INFO L748 eck$LassoCheckResult]: Stem: 49#[$Ultimate##0]true [133] $Ultimate##0-->L73: Formula: (and (= v_M1_10 v_N1_10) (= v_counter_59 0) (= v_i1_18 v_j2_22) (= v_i1_18 0) (< 0 v_C_28) (= v_i1_18 v_j1_18) (= v_i1_18 v_i2_22) (= v_M2_10 v_N1_10) (= v_N2_10 v_N1_10)) InVars {counter=v_counter_59, i1=v_i1_18, j2=v_j2_22, i2=v_i2_22, j1=v_j1_18, N2=v_N2_10, M1=v_M1_10, M2=v_M2_10, C=v_C_28, N1=v_N1_10} OutVars{counter=v_counter_59, i1=v_i1_18, j2=v_j2_22, i2=v_i2_22, j1=v_j1_18, N2=v_N2_10, M1=v_M1_10, M2=v_M2_10, C=v_C_28, N1=v_N1_10} AuxVars[] AssignedVars[] 51#[L73]true [106] L73-->L24-1: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0] 53#[L73-1, L24-1]true [2023-10-12 17:41:54,253 INFO L750 eck$LassoCheckResult]: Loop: 53#[L73-1, L24-1]true [126] L24-1-->L24-1: Formula: (and (= v_counter_45 (+ v_counter_46 v_C_22)) (= v_i1_12 (+ v_i1_13 1)) (< v_i1_13 v_N1_8)) InVars {counter=v_counter_46, i1=v_i1_13, C=v_C_22, N1=v_N1_8} OutVars{counter=v_counter_45, i1=v_i1_12, C=v_C_22, N1=v_N1_8} AuxVars[] AssignedVars[counter, i1] 53#[L73-1, L24-1]true [2023-10-12 17:41:54,257 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:41:54,257 INFO L85 PathProgramCache]: Analyzing trace with hash 5190, now seen corresponding path program 1 times [2023-10-12 17:41:54,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:41:54,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748143753] [2023-10-12 17:41:54,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:41:54,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:41:54,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:41:54,335 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:41:54,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:41:54,376 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:41:54,378 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:41:54,378 INFO L85 PathProgramCache]: Analyzing trace with hash 157, now seen corresponding path program 1 times [2023-10-12 17:41:54,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:41:54,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785591867] [2023-10-12 17:41:54,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:41:54,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:41:54,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:41:54,395 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:41:54,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:41:54,400 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:41:54,402 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:41:54,402 INFO L85 PathProgramCache]: Analyzing trace with hash 161016, now seen corresponding path program 1 times [2023-10-12 17:41:54,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:41:54,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081115591] [2023-10-12 17:41:54,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:41:54,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:41:54,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:41:54,412 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:41:54,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:41:54,420 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:41:54,463 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:41:54,464 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:41:54,464 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:41:54,464 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:41:54,464 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-10-12 17:41:54,464 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:41:54,464 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:41:54,464 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:41:54,464 INFO L133 ssoRankerPreferences]: Filename of dumped script: mult-4.wvr.bpl_BEv2_Iteration1_Loop [2023-10-12 17:41:54,465 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:41:54,465 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:41:54,479 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 17:41:54,489 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 17:41:54,528 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:41:54,529 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-10-12 17:41:54,531 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:41:54,531 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:41:54,534 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 17:41:54,542 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:41:54,542 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:41:54,554 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2023-10-12 17:41:54,572 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-10-12 17:41:54,572 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {counter=0, C=0} Honda state: {counter=0, C=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-10-12 17:41:54,576 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 17:41:54,576 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:41:54,577 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:41:54,580 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 17:41:54,580 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 17:41:54,582 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:41:54,582 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:41:54,609 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 17:41:54,609 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:41:54,609 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:41:54,610 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 17:41:54,612 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 17:41:54,614 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-10-12 17:41:54,614 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:41:54,724 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-10-12 17:41:54,727 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 17:41:54,728 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:41:54,728 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:41:54,728 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:41:54,728 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:41:54,728 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-10-12 17:41:54,728 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:41:54,728 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:41:54,728 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:41:54,728 INFO L133 ssoRankerPreferences]: Filename of dumped script: mult-4.wvr.bpl_BEv2_Iteration1_Loop [2023-10-12 17:41:54,728 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:41:54,729 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:41:54,730 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 17:41:54,737 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 17:41:54,768 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:41:54,772 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-10-12 17:41:54,773 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:41:54,773 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:41:54,775 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 17:41:54,792 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 17:41:54,795 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 17:41:54,799 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:41:54,799 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-10-12 17:41:54,800 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:41:54,800 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:41:54,800 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:41:54,802 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-10-12 17:41:54,802 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-10-12 17:41:54,805 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:41:54,808 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 17:41:54,808 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:41:54,809 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:41:54,809 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 17:41:54,811 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 17:41:54,812 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 17:41:54,819 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:41:54,819 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-10-12 17:41:54,819 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:41:54,819 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:41:54,819 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:41:54,820 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-10-12 17:41:54,821 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-10-12 17:41:54,834 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-10-12 17:41:54,837 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-10-12 17:41:54,837 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-10-12 17:41:54,838 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:41:54,838 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:41:54,839 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 17:41:54,843 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 17:41:54,889 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-10-12 17:41:54,890 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-10-12 17:41:54,890 INFO L513 LassoAnalysis]: Proved termination. [2023-10-12 17:41:54,890 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(N1, i1) = 1*N1 - 1*i1 Supporting invariants [] [2023-10-12 17:41:54,894 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 17:41:54,896 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-10-12 17:41:54,921 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:41:54,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:41:54,943 INFO L262 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 2 conjunts are in the unsatisfiable core [2023-10-12 17:41:54,944 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:41:54,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:41:54,958 WARN L260 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2023-10-12 17:41:54,958 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:41:54,959 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 17:41:54,984 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 17:41:55,085 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 17:41:55,091 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 17:41:55,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 216 transitions. [2023-10-12 17:41:55,105 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 216 transitions. Stem has 2 letters. Loop has 1 letters. [2023-10-12 17:41:55,105 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:41:55,105 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 216 transitions. Stem has 3 letters. Loop has 1 letters. [2023-10-12 17:41:55,105 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:41:55,106 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 216 transitions. Stem has 2 letters. Loop has 2 letters. [2023-10-12 17:41:55,106 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:41:55,106 INFO L430 stractBuchiCegarLoop]: Abstraction has has 32 places, 76 transitions, 400 flow [2023-10-12 17:41:55,106 INFO L337 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-10-12 17:41:55,106 INFO L67 RabinIsEmpty]: Start rabinIsEmpty. Operand has 32 places, 76 transitions, 400 flow [2023-10-12 17:41:55,108 ERROR L47 etriNetUnfolderRabin]: [1:1A:[133] $Ultimate##0-->L73: Formula: (and (= v_M1_10 v_N1_10) (= v_counter_59 0) (= v_i1_18 v_j2_22) (= v_i1_18 0) (< 0 v_C_28) (= v_i1_18 v_j1_18) (= v_i1_18 v_i2_22) (= v_M2_10 v_N1_10) (= v_N2_10 v_N1_10)) InVars {counter=v_counter_59, i1=v_i1_18, j2=v_j2_22, i2=v_i2_22, j1=v_j1_18, N2=v_N2_10, M1=v_M1_10, M2=v_M2_10, C=v_C_28, N1=v_N1_10} OutVars{counter=v_counter_59, i1=v_i1_18, j2=v_j2_22, i2=v_i2_22, j1=v_j1_18, N2=v_N2_10, M1=v_M1_10, M2=v_M2_10, C=v_C_28, N1=v_N1_10} AuxVars[] AssignedVars[][71], 2:2A:[106] L73-->L24-1: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0][31], 4:3A:[109] L73-1-->L35-1: Formula: (and (= 2 v_thread2Thread1of1ForFork1_thidvar1_2) (= 2 v_thread2Thread1of1ForFork1_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_2, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_thidvar0, thread2Thread1of1ForFork1_thidvar1][16]][5:4A:[122] L35-1-->L35-1: Formula: (and (< v_i2_17 v_N2_8) (= (+ v_i2_17 1) v_i2_16) (= v_counter_38 (+ v_counter_37 v_C_20)) (< 0 v_counter_38)) InVars {counter=v_counter_38, i2=v_i2_17, N2=v_N2_8, C=v_C_20} OutVars{counter=v_counter_37, i2=v_i2_16, N2=v_N2_8, C=v_C_20} AuxVars[] AssignedVars[counter, i2][54]] [2023-10-12 17:41:55,109 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-10-12 17:41:55,109 INFO L124 PetriNetUnfolderBase]: 1/4 cut-off events. [2023-10-12 17:41:55,109 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-10-12 17:41:55,109 INFO L72 RabinIsEmpty]: Finished rabinIsEmpty language is not empty [2023-10-12 17:41:55,110 INFO L748 eck$LassoCheckResult]: Stem: 49#[$Ultimate##0]true [133] $Ultimate##0-->L73: Formula: (and (= v_M1_10 v_N1_10) (= v_counter_59 0) (= v_i1_18 v_j2_22) (= v_i1_18 0) (< 0 v_C_28) (= v_i1_18 v_j1_18) (= v_i1_18 v_i2_22) (= v_M2_10 v_N1_10) (= v_N2_10 v_N1_10)) InVars {counter=v_counter_59, i1=v_i1_18, j2=v_j2_22, i2=v_i2_22, j1=v_j1_18, N2=v_N2_10, M1=v_M1_10, M2=v_M2_10, C=v_C_28, N1=v_N1_10} OutVars{counter=v_counter_59, i1=v_i1_18, j2=v_j2_22, i2=v_i2_22, j1=v_j1_18, N2=v_N2_10, M1=v_M1_10, M2=v_M2_10, C=v_C_28, N1=v_N1_10} AuxVars[] AssignedVars[] 51#[L73]true [106] L73-->L24-1: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0] 53#[L73-1, L24-1]true [109] L73-1-->L35-1: Formula: (and (= 2 v_thread2Thread1of1ForFork1_thidvar1_2) (= 2 v_thread2Thread1of1ForFork1_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_2, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_thidvar0, thread2Thread1of1ForFork1_thidvar1] 88#[L74, L24-1, L35-1]true [2023-10-12 17:41:55,110 INFO L750 eck$LassoCheckResult]: Loop: 88#[L74, L24-1, L35-1]true [122] L35-1-->L35-1: Formula: (and (< v_i2_17 v_N2_8) (= (+ v_i2_17 1) v_i2_16) (= v_counter_38 (+ v_counter_37 v_C_20)) (< 0 v_counter_38)) InVars {counter=v_counter_38, i2=v_i2_17, N2=v_N2_8, C=v_C_20} OutVars{counter=v_counter_37, i2=v_i2_16, N2=v_N2_8, C=v_C_20} AuxVars[] AssignedVars[counter, i2] 88#[L74, L24-1, L35-1]true [2023-10-12 17:41:55,111 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:41:55,112 INFO L85 PathProgramCache]: Analyzing trace with hash 160999, now seen corresponding path program 1 times [2023-10-12 17:41:55,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:41:55,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133634214] [2023-10-12 17:41:55,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:41:55,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:41:55,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:41:55,125 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:41:55,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:41:55,130 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:41:55,130 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:41:55,131 INFO L85 PathProgramCache]: Analyzing trace with hash 153, now seen corresponding path program 1 times [2023-10-12 17:41:55,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:41:55,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023279206] [2023-10-12 17:41:55,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:41:55,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:41:55,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:41:55,135 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:41:55,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:41:55,138 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:41:55,139 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:41:55,139 INFO L85 PathProgramCache]: Analyzing trace with hash 4991091, now seen corresponding path program 1 times [2023-10-12 17:41:55,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:41:55,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789942711] [2023-10-12 17:41:55,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:41:55,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:41:55,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:41:55,182 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 17:41:55,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-10-12 17:41:55,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789942711] [2023-10-12 17:41:55,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1789942711] provided 1 perfect and 0 imperfect interpolant sequences [2023-10-12 17:41:55,183 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-10-12 17:41:55,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-10-12 17:41:55,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874767377] [2023-10-12 17:41:55,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-10-12 17:41:55,208 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:41:55,208 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:41:55,208 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:41:55,209 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:41:55,209 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-10-12 17:41:55,209 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:41:55,209 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:41:55,209 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:41:55,209 INFO L133 ssoRankerPreferences]: Filename of dumped script: mult-4.wvr.bpl_BEv2_Iteration2_Loop [2023-10-12 17:41:55,209 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:41:55,209 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:41:55,210 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 17:41:55,215 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 17:41:55,242 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:41:55,242 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-10-12 17:41:55,242 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:41:55,242 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:41:55,243 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 17:41:55,254 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 17:41:55,255 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:41:55,255 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:41:55,291 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-10-12 17:41:55,291 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {counter=1, C=0} Honda state: {counter=1, C=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-10-12 17:41:55,295 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 17:41:55,296 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:41:55,296 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:41:55,297 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 17:41:55,305 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 17:41:55,306 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:41:55,306 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:41:55,332 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 17:41:55,333 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:41:55,333 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:41:55,334 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 17:41:55,337 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 17:41:55,343 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-10-12 17:41:55,344 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:41:55,450 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-10-12 17:41:55,453 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2023-10-12 17:41:55,453 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:41:55,453 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:41:55,454 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:41:55,454 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:41:55,454 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-10-12 17:41:55,454 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:41:55,454 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:41:55,454 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:41:55,454 INFO L133 ssoRankerPreferences]: Filename of dumped script: mult-4.wvr.bpl_BEv2_Iteration2_Loop [2023-10-12 17:41:55,454 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:41:55,454 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:41:55,455 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 17:41:55,467 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 17:41:55,496 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:41:55,496 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-10-12 17:41:55,499 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:41:55,499 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:41:55,504 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 17:41:55,518 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 17:41:55,526 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:41:55,526 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-10-12 17:41:55,526 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:41:55,526 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:41:55,526 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:41:55,528 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-10-12 17:41:55,528 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-10-12 17:41:55,530 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 17:41:55,549 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:41:55,553 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 17:41:55,554 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:41:55,554 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:41:55,555 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 17:41:55,570 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 17:41:55,578 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:41:55,579 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-10-12 17:41:55,579 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:41:55,579 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:41:55,579 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:41:55,580 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-10-12 17:41:55,580 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-10-12 17:41:55,585 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 17:41:55,605 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-10-12 17:41:55,609 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2023-10-12 17:41:55,609 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-10-12 17:41:55,609 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:41:55,609 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:41:55,613 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 17:41:55,616 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 17:41:55,617 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-10-12 17:41:55,617 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-10-12 17:41:55,617 INFO L513 LassoAnalysis]: Proved termination. [2023-10-12 17:41:55,618 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(i2, N2) = -1*i2 + 1*N2 Supporting invariants [] [2023-10-12 17:41:55,624 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 17:41:55,626 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-10-12 17:41:55,639 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:41:55,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:41:55,649 INFO L262 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 2 conjunts are in the unsatisfiable core [2023-10-12 17:41:55,649 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:41:55,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:41:55,660 WARN L260 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-10-12 17:41:55,660 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:41:55,661 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 17:41:55,661 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 17:41:55,748 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 17:41:55,749 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 17:41:55,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 216 transitions. [2023-10-12 17:41:55,751 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 216 transitions. Stem has 3 letters. Loop has 1 letters. [2023-10-12 17:41:55,751 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:41:55,751 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 216 transitions. Stem has 4 letters. Loop has 1 letters. [2023-10-12 17:41:55,751 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:41:55,751 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 216 transitions. Stem has 3 letters. Loop has 2 letters. [2023-10-12 17:41:55,751 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:41:55,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-10-12 17:41:55,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-10-12 17:41:55,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-10-12 17:41:55,755 INFO L103 encePairwiseOnDemand]: Start rabinDifferencePairwiseOnDemand. First operand has 36 places, 304 transitions, 2208 flow. Second operand has 3 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 17:41:55,755 INFO L124 encePairwiseOnDemand]: Subtrahend is not yet constructed. Will not use universal subtrahend loopers optimization. [2023-10-12 17:41:55,755 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-10-12 17:41:55,857 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 17:41:55,858 ERROR L418 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Exception during sending of exit command (exit): Broken pipe [2023-10-12 17:41:55,861 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 17:41:55,877 INFO L124 PetriNetUnfolderBase]: 321/445 cut-off events. [2023-10-12 17:41:55,877 INFO L125 PetriNetUnfolderBase]: For 85/85 co-relation queries the response was YES. [2023-10-12 17:41:55,882 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1904 conditions, 445 events. 321/445 cut-off events. For 85/85 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1127 event pairs, 42 based on Foata normal form. 1/279 useless extension candidates. Maximal degree in co-relation 1420. Up to 393 conditions per place. [2023-10-12 17:41:55,890 INFO L140 encePairwiseOnDemand]: 47/54 looper letters, 57 selfloop transitions, 5 changer transitions 0/62 dead transitions. [2023-10-12 17:41:55,890 INFO L145 encePairwiseOnDemand]: Finished rabinDifferencePairwiseOnDemand. Result has 35 places, 62 transitions, 565 flow [2023-10-12 17:41:55,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-10-12 17:41:55,892 INFO L430 stractBuchiCegarLoop]: Abstraction has has 35 places, 62 transitions, 565 flow [2023-10-12 17:41:55,892 INFO L337 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-10-12 17:41:55,892 INFO L67 RabinIsEmpty]: Start rabinIsEmpty. Operand has 35 places, 62 transitions, 565 flow [2023-10-12 17:41:55,897 ERROR L47 etriNetUnfolderRabin]: [1:1A:[133] $Ultimate##0-->L73: Formula: (and (= v_M1_10 v_N1_10) (= v_counter_59 0) (= v_i1_18 v_j2_22) (= v_i1_18 0) (< 0 v_C_28) (= v_i1_18 v_j1_18) (= v_i1_18 v_i2_22) (= v_M2_10 v_N1_10) (= v_N2_10 v_N1_10)) InVars {counter=v_counter_59, i1=v_i1_18, j2=v_j2_22, i2=v_i2_22, j1=v_j1_18, N2=v_N2_10, M1=v_M1_10, M2=v_M2_10, C=v_C_28, N1=v_N1_10} OutVars{counter=v_counter_59, i1=v_i1_18, j2=v_j2_22, i2=v_i2_22, j1=v_j1_18, N2=v_N2_10, M1=v_M1_10, M2=v_M2_10, C=v_C_28, N1=v_N1_10} AuxVars[] AssignedVars[][0], 2:2A:[106] L73-->L24-1: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0][1], 3:3A:[126] L24-1-->L24-1: Formula: (and (= v_counter_45 (+ v_counter_46 v_C_22)) (= v_i1_12 (+ v_i1_13 1)) (< v_i1_13 v_N1_8)) InVars {counter=v_counter_46, i1=v_i1_13, C=v_C_22, N1=v_N1_8} OutVars{counter=v_counter_45, i1=v_i1_12, C=v_C_22, N1=v_N1_8} AuxVars[] AssignedVars[counter, i1][2], 8:4A:[109] L73-1-->L35-1: Formula: (and (= 2 v_thread2Thread1of1ForFork1_thidvar1_2) (= 2 v_thread2Thread1of1ForFork1_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_2, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_thidvar0, thread2Thread1of1ForFork1_thidvar1][7], 36:5A:[112] L74-->L47-1: Formula: (and (= 3 v_thread3Thread1of1ForFork2_thidvar0_2) (= 3 v_thread3Thread1of1ForFork2_thidvar1_2) (= 3 v_thread3Thread1of1ForFork2_thidvar2_2)) InVars {} OutVars{thread3Thread1of1ForFork2_thidvar2=v_thread3Thread1of1ForFork2_thidvar2_2, thread3Thread1of1ForFork2_thidvar1=v_thread3Thread1of1ForFork2_thidvar1_2, thread3Thread1of1ForFork2_thidvar0=v_thread3Thread1of1ForFork2_thidvar0_2} AuxVars[] AssignedVars[thread3Thread1of1ForFork2_thidvar2, thread3Thread1of1ForFork2_thidvar1, thread3Thread1of1ForFork2_thidvar0][18]][39:6A:[128] L47-1-->L47-1: Formula: (and (= v_counter_49 (+ v_counter_50 v_C_24)) (< v_j1_13 v_M1_8) (= (+ v_j1_13 1) v_j1_12)) InVars {counter=v_counter_50, j1=v_j1_13, M1=v_M1_8, C=v_C_24} OutVars{counter=v_counter_49, j1=v_j1_12, M1=v_M1_8, C=v_C_24} AuxVars[] AssignedVars[counter, j1][37]] [2023-10-12 17:41:55,898 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-10-12 17:41:55,899 INFO L124 PetriNetUnfolderBase]: 22/38 cut-off events. [2023-10-12 17:41:55,899 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2023-10-12 17:41:55,899 INFO L72 RabinIsEmpty]: Finished rabinIsEmpty language is not empty [2023-10-12 17:41:55,899 INFO L748 eck$LassoCheckResult]: Stem: 49#[$Ultimate##0]true [133] $Ultimate##0-->L73: Formula: (and (= v_M1_10 v_N1_10) (= v_counter_59 0) (= v_i1_18 v_j2_22) (= v_i1_18 0) (< 0 v_C_28) (= v_i1_18 v_j1_18) (= v_i1_18 v_i2_22) (= v_M2_10 v_N1_10) (= v_N2_10 v_N1_10)) InVars {counter=v_counter_59, i1=v_i1_18, j2=v_j2_22, i2=v_i2_22, j1=v_j1_18, N2=v_N2_10, M1=v_M1_10, M2=v_M2_10, C=v_C_28, N1=v_N1_10} OutVars{counter=v_counter_59, i1=v_i1_18, j2=v_j2_22, i2=v_i2_22, j1=v_j1_18, N2=v_N2_10, M1=v_M1_10, M2=v_M2_10, C=v_C_28, N1=v_N1_10} AuxVars[] AssignedVars[] 51#[L73]true [106] L73-->L24-1: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0] 53#[L73-1, L24-1]true [126] L24-1-->L24-1: Formula: (and (= v_counter_45 (+ v_counter_46 v_C_22)) (= v_i1_12 (+ v_i1_13 1)) (< v_i1_13 v_N1_8)) InVars {counter=v_counter_46, i1=v_i1_13, C=v_C_22, N1=v_N1_8} OutVars{counter=v_counter_45, i1=v_i1_12, C=v_C_22, N1=v_N1_8} AuxVars[] AssignedVars[counter, i1] 53#[L73-1, L24-1]true [109] L73-1-->L35-1: Formula: (and (= 2 v_thread2Thread1of1ForFork1_thidvar1_2) (= 2 v_thread2Thread1of1ForFork1_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_2, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_thidvar0, thread2Thread1of1ForFork1_thidvar1] 88#[L74, L24-1, L35-1]true [112] L74-->L47-1: Formula: (and (= 3 v_thread3Thread1of1ForFork2_thidvar0_2) (= 3 v_thread3Thread1of1ForFork2_thidvar1_2) (= 3 v_thread3Thread1of1ForFork2_thidvar2_2)) InVars {} OutVars{thread3Thread1of1ForFork2_thidvar2=v_thread3Thread1of1ForFork2_thidvar2_2, thread3Thread1of1ForFork2_thidvar1=v_thread3Thread1of1ForFork2_thidvar1_2, thread3Thread1of1ForFork2_thidvar0=v_thread3Thread1of1ForFork2_thidvar0_2} AuxVars[] AssignedVars[thread3Thread1of1ForFork2_thidvar2, thread3Thread1of1ForFork2_thidvar1, thread3Thread1of1ForFork2_thidvar0] 124#[L75, L47-1, L24-1, L35-1]true [2023-10-12 17:41:55,899 INFO L750 eck$LassoCheckResult]: Loop: 124#[L75, L47-1, L24-1, L35-1]true [128] L47-1-->L47-1: Formula: (and (= v_counter_49 (+ v_counter_50 v_C_24)) (< v_j1_13 v_M1_8) (= (+ v_j1_13 1) v_j1_12)) InVars {counter=v_counter_50, j1=v_j1_13, M1=v_M1_8, C=v_C_24} OutVars{counter=v_counter_49, j1=v_j1_12, M1=v_M1_8, C=v_C_24} AuxVars[] AssignedVars[counter, j1] 124#[L75, L47-1, L24-1, L35-1]true [2023-10-12 17:41:55,900 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:41:55,900 INFO L85 PathProgramCache]: Analyzing trace with hash 154739867, now seen corresponding path program 1 times [2023-10-12 17:41:55,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:41:55,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575589299] [2023-10-12 17:41:55,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:41:55,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:41:55,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:41:55,920 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:41:55,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:41:55,929 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:41:55,929 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:41:55,929 INFO L85 PathProgramCache]: Analyzing trace with hash 159, now seen corresponding path program 1 times [2023-10-12 17:41:55,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:41:55,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688531035] [2023-10-12 17:41:55,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:41:55,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:41:55,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:41:55,933 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:41:55,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:41:55,937 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:41:55,937 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:41:55,937 INFO L85 PathProgramCache]: Analyzing trace with hash 501968709, now seen corresponding path program 1 times [2023-10-12 17:41:55,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:41:55,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268919919] [2023-10-12 17:41:55,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:41:55,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:41:55,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:41:55,949 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:41:55,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:41:55,958 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:41:55,974 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:41:55,974 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:41:55,975 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:41:55,975 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:41:55,975 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-10-12 17:41:55,975 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:41:55,975 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:41:55,975 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:41:55,975 INFO L133 ssoRankerPreferences]: Filename of dumped script: mult-4.wvr.bpl_BEv2_Iteration3_Loop [2023-10-12 17:41:55,975 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:41:55,975 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:41:55,976 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 17:41:55,979 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 17:41:56,001 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:41:56,001 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-10-12 17:41:56,002 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:41:56,002 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:41:56,003 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 17:41:56,009 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 17:41:56,010 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:41:56,010 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:41:56,027 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-10-12 17:41:56,027 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {counter=0, C=0} Honda state: {counter=0, C=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-10-12 17:41:56,032 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 17:41:56,032 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:41:56,033 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:41:56,033 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:41:56,036 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2023-10-12 17:41:56,037 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:41:56,037 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:41:56,083 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2023-10-12 17:41:56,084 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:41:56,084 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:41:56,085 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:41:56,086 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2023-10-12 17:41:56,088 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-10-12 17:41:56,088 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:41:56,201 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-10-12 17:41:56,206 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2023-10-12 17:41:56,207 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:41:56,207 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:41:56,207 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:41:56,207 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:41:56,207 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-10-12 17:41:56,207 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:41:56,207 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:41:56,207 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:41:56,207 INFO L133 ssoRankerPreferences]: Filename of dumped script: mult-4.wvr.bpl_BEv2_Iteration3_Loop [2023-10-12 17:41:56,207 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:41:56,207 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:41:56,208 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 17:41:56,222 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 17:41:56,247 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:41:56,247 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-10-12 17:41:56,247 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:41:56,247 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:41:56,248 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:41:56,257 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2023-10-12 17:41:56,264 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 17:41:56,273 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:41:56,273 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-10-12 17:41:56,273 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:41:56,273 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:41:56,273 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:41:56,274 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-10-12 17:41:56,274 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-10-12 17:41:56,287 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:41:56,294 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2023-10-12 17:41:56,294 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:41:56,294 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:41:56,295 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:41:56,304 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 17:41:56,312 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:41:56,312 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-10-12 17:41:56,312 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:41:56,313 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:41:56,313 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:41:56,314 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-10-12 17:41:56,314 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-10-12 17:41:56,316 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2023-10-12 17:41:56,333 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-10-12 17:41:56,335 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-10-12 17:41:56,335 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-10-12 17:41:56,335 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:41:56,336 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:41:56,341 INFO L229 MonitoredProcess]: Starting monitored process 19 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 17:41:56,344 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2023-10-12 17:41:56,345 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-10-12 17:41:56,346 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-10-12 17:41:56,346 INFO L513 LassoAnalysis]: Proved termination. [2023-10-12 17:41:56,346 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(j1, M1) = -1*j1 + 1*M1 Supporting invariants [] [2023-10-12 17:41:56,352 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2023-10-12 17:41:56,353 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-10-12 17:41:56,370 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:41:56,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:41:56,383 INFO L262 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 2 conjunts are in the unsatisfiable core [2023-10-12 17:41:56,384 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:41:56,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:41:56,401 WARN L260 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2023-10-12 17:41:56,402 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:41:56,402 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 17:41:56,402 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 17:41:56,485 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 17:41:56,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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 17:41:56,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 216 transitions. [2023-10-12 17:41:56,489 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 216 transitions. Stem has 5 letters. Loop has 1 letters. [2023-10-12 17:41:56,489 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:41:56,489 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 216 transitions. Stem has 6 letters. Loop has 1 letters. [2023-10-12 17:41:56,489 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:41:56,489 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 216 transitions. Stem has 5 letters. Loop has 2 letters. [2023-10-12 17:41:56,489 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:41:56,489 INFO L430 stractBuchiCegarLoop]: Abstraction has has 39 places, 248 transitions, 2756 flow [2023-10-12 17:41:56,489 INFO L337 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-10-12 17:41:56,490 INFO L67 RabinIsEmpty]: Start rabinIsEmpty. Operand has 39 places, 248 transitions, 2756 flow [2023-10-12 17:41:56,505 ERROR L47 etriNetUnfolderRabin]: [1:1A:[133] $Ultimate##0-->L73: Formula: (and (= v_M1_10 v_N1_10) (= v_counter_59 0) (= v_i1_18 v_j2_22) (= v_i1_18 0) (< 0 v_C_28) (= v_i1_18 v_j1_18) (= v_i1_18 v_i2_22) (= v_M2_10 v_N1_10) (= v_N2_10 v_N1_10)) InVars {counter=v_counter_59, i1=v_i1_18, j2=v_j2_22, i2=v_i2_22, j1=v_j1_18, N2=v_N2_10, M1=v_M1_10, M2=v_M2_10, C=v_C_28, N1=v_N1_10} OutVars{counter=v_counter_59, i1=v_i1_18, j2=v_j2_22, i2=v_i2_22, j1=v_j1_18, N2=v_N2_10, M1=v_M1_10, M2=v_M2_10, C=v_C_28, N1=v_N1_10} AuxVars[] AssignedVars[][2], 2:2A:[106] L73-->L24-1: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0][6], 3:3A:[126] L24-1-->L24-1: Formula: (and (= v_counter_45 (+ v_counter_46 v_C_22)) (= v_i1_12 (+ v_i1_13 1)) (< v_i1_13 v_N1_8)) InVars {counter=v_counter_46, i1=v_i1_13, C=v_C_22, N1=v_N1_8} OutVars{counter=v_counter_45, i1=v_i1_12, C=v_C_22, N1=v_N1_8} AuxVars[] AssignedVars[counter, i1][10], 8:4A:[109] L73-1-->L35-1: Formula: (and (= 2 v_thread2Thread1of1ForFork1_thidvar1_2) (= 2 v_thread2Thread1of1ForFork1_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_2, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_thidvar0, thread2Thread1of1ForFork1_thidvar1][30], 34:5A:[112] L74-->L47-1: Formula: (and (= 3 v_thread3Thread1of1ForFork2_thidvar0_2) (= 3 v_thread3Thread1of1ForFork2_thidvar1_2) (= 3 v_thread3Thread1of1ForFork2_thidvar2_2)) InVars {} OutVars{thread3Thread1of1ForFork2_thidvar2=v_thread3Thread1of1ForFork2_thidvar2_2, thread3Thread1of1ForFork2_thidvar1=v_thread3Thread1of1ForFork2_thidvar1_2, thread3Thread1of1ForFork2_thidvar0=v_thread3Thread1of1ForFork2_thidvar0_2} AuxVars[] AssignedVars[thread3Thread1of1ForFork2_thidvar2, thread3Thread1of1ForFork2_thidvar1, thread3Thread1of1ForFork2_thidvar0][74], 104:6A:[115] L75-->L58-1: Formula: (and (= v_thread4Thread1of1ForFork3_thidvar2_2 4) (= v_thread4Thread1of1ForFork3_thidvar3_2 4) (= v_thread4Thread1of1ForFork3_thidvar0_2 4) (= v_thread4Thread1of1ForFork3_thidvar1_2 4)) InVars {} OutVars{thread4Thread1of1ForFork3_thidvar1=v_thread4Thread1of1ForFork3_thidvar1_2, thread4Thread1of1ForFork3_thidvar0=v_thread4Thread1of1ForFork3_thidvar0_2, thread4Thread1of1ForFork3_thidvar3=v_thread4Thread1of1ForFork3_thidvar3_2, thread4Thread1of1ForFork3_thidvar2=v_thread4Thread1of1ForFork3_thidvar2_2} AuxVars[] AssignedVars[thread4Thread1of1ForFork3_thidvar1, thread4Thread1of1ForFork3_thidvar0, thread4Thread1of1ForFork3_thidvar3, thread4Thread1of1ForFork3_thidvar2][152]][110:7A:[130] L58-1-->L58-1: Formula: (and (< 0 v_counter_54) (= v_j2_16 (+ v_j2_17 1)) (< v_j2_17 v_M2_8) (= v_counter_54 (+ v_counter_53 v_C_26))) InVars {counter=v_counter_54, j2=v_j2_17, M2=v_M2_8, C=v_C_26} OutVars{counter=v_counter_53, j2=v_j2_16, M2=v_M2_8, C=v_C_26} AuxVars[] AssignedVars[counter, j2][189]] [2023-10-12 17:41:56,506 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-10-12 17:41:56,506 INFO L124 PetriNetUnfolderBase]: 76/109 cut-off events. [2023-10-12 17:41:56,506 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2023-10-12 17:41:56,506 INFO L72 RabinIsEmpty]: Finished rabinIsEmpty language is not empty [2023-10-12 17:41:56,507 INFO L748 eck$LassoCheckResult]: Stem: 49#[$Ultimate##0]true [133] $Ultimate##0-->L73: Formula: (and (= v_M1_10 v_N1_10) (= v_counter_59 0) (= v_i1_18 v_j2_22) (= v_i1_18 0) (< 0 v_C_28) (= v_i1_18 v_j1_18) (= v_i1_18 v_i2_22) (= v_M2_10 v_N1_10) (= v_N2_10 v_N1_10)) InVars {counter=v_counter_59, i1=v_i1_18, j2=v_j2_22, i2=v_i2_22, j1=v_j1_18, N2=v_N2_10, M1=v_M1_10, M2=v_M2_10, C=v_C_28, N1=v_N1_10} OutVars{counter=v_counter_59, i1=v_i1_18, j2=v_j2_22, i2=v_i2_22, j1=v_j1_18, N2=v_N2_10, M1=v_M1_10, M2=v_M2_10, C=v_C_28, N1=v_N1_10} AuxVars[] AssignedVars[] 51#[L73]true [106] L73-->L24-1: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0] 53#[L73-1, L24-1]true [126] L24-1-->L24-1: Formula: (and (= v_counter_45 (+ v_counter_46 v_C_22)) (= v_i1_12 (+ v_i1_13 1)) (< v_i1_13 v_N1_8)) InVars {counter=v_counter_46, i1=v_i1_13, C=v_C_22, N1=v_N1_8} OutVars{counter=v_counter_45, i1=v_i1_12, C=v_C_22, N1=v_N1_8} AuxVars[] AssignedVars[counter, i1] 53#[L73-1, L24-1]true [109] L73-1-->L35-1: Formula: (and (= 2 v_thread2Thread1of1ForFork1_thidvar1_2) (= 2 v_thread2Thread1of1ForFork1_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_2, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_thidvar0, thread2Thread1of1ForFork1_thidvar1] 88#[L74, L24-1, L35-1]true [112] L74-->L47-1: Formula: (and (= 3 v_thread3Thread1of1ForFork2_thidvar0_2) (= 3 v_thread3Thread1of1ForFork2_thidvar1_2) (= 3 v_thread3Thread1of1ForFork2_thidvar2_2)) InVars {} OutVars{thread3Thread1of1ForFork2_thidvar2=v_thread3Thread1of1ForFork2_thidvar2_2, thread3Thread1of1ForFork2_thidvar1=v_thread3Thread1of1ForFork2_thidvar1_2, thread3Thread1of1ForFork2_thidvar0=v_thread3Thread1of1ForFork2_thidvar0_2} AuxVars[] AssignedVars[thread3Thread1of1ForFork2_thidvar2, thread3Thread1of1ForFork2_thidvar1, thread3Thread1of1ForFork2_thidvar0] 124#[L75, L47-1, L24-1, L35-1]true [115] L75-->L58-1: Formula: (and (= v_thread4Thread1of1ForFork3_thidvar2_2 4) (= v_thread4Thread1of1ForFork3_thidvar3_2 4) (= v_thread4Thread1of1ForFork3_thidvar0_2 4) (= v_thread4Thread1of1ForFork3_thidvar1_2 4)) InVars {} OutVars{thread4Thread1of1ForFork3_thidvar1=v_thread4Thread1of1ForFork3_thidvar1_2, thread4Thread1of1ForFork3_thidvar0=v_thread4Thread1of1ForFork3_thidvar0_2, thread4Thread1of1ForFork3_thidvar3=v_thread4Thread1of1ForFork3_thidvar3_2, thread4Thread1of1ForFork3_thidvar2=v_thread4Thread1of1ForFork3_thidvar2_2} AuxVars[] AssignedVars[thread4Thread1of1ForFork3_thidvar1, thread4Thread1of1ForFork3_thidvar0, thread4Thread1of1ForFork3_thidvar3, thread4Thread1of1ForFork3_thidvar2] 166#[L58-1, L47-1, L24-1, L35-1, L76]true [2023-10-12 17:41:56,507 INFO L750 eck$LassoCheckResult]: Loop: 166#[L58-1, L47-1, L24-1, L35-1, L76]true [130] L58-1-->L58-1: Formula: (and (< 0 v_counter_54) (= v_j2_16 (+ v_j2_17 1)) (< v_j2_17 v_M2_8) (= v_counter_54 (+ v_counter_53 v_C_26))) InVars {counter=v_counter_54, j2=v_j2_17, M2=v_M2_8, C=v_C_26} OutVars{counter=v_counter_53, j2=v_j2_16, M2=v_M2_8, C=v_C_26} AuxVars[] AssignedVars[counter, j2] 166#[L58-1, L47-1, L24-1, L35-1, L76]true [2023-10-12 17:41:56,507 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:41:56,507 INFO L85 PathProgramCache]: Analyzing trace with hash 501968696, now seen corresponding path program 1 times [2023-10-12 17:41:56,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:41:56,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655626587] [2023-10-12 17:41:56,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:41:56,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:41:56,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:41:56,531 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:41:56,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:41:56,537 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:41:56,537 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:41:56,537 INFO L85 PathProgramCache]: Analyzing trace with hash 161, now seen corresponding path program 1 times [2023-10-12 17:41:56,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:41:56,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815400286] [2023-10-12 17:41:56,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:41:56,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:41:56,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:41:56,540 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:41:56,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:41:56,549 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:41:56,550 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:41:56,550 INFO L85 PathProgramCache]: Analyzing trace with hash -1618839478, now seen corresponding path program 1 times [2023-10-12 17:41:56,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:41:56,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306161149] [2023-10-12 17:41:56,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:41:56,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:41:56,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:41:56,556 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:41:56,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:41:56,562 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:41:56,582 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:41:56,582 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:41:56,582 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:41:56,582 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:41:56,582 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-10-12 17:41:56,582 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:41:56,582 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:41:56,582 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:41:56,583 INFO L133 ssoRankerPreferences]: Filename of dumped script: mult-4.wvr.bpl_BEv2_Iteration4_Loop [2023-10-12 17:41:56,583 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:41:56,583 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:41:56,583 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 17:41:56,588 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 17:41:56,610 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:41:56,611 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-10-12 17:41:56,611 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:41:56,611 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:41:56,612 INFO L229 MonitoredProcess]: Starting monitored process 20 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 17:41:56,618 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2023-10-12 17:41:56,618 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-10-12 17:41:56,618 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:41:56,646 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2023-10-12 17:41:56,646 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:41:56,646 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:41:56,647 INFO L229 MonitoredProcess]: Starting monitored process 21 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 17:41:56,655 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-10-12 17:41:56,655 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-10-12 17:41:56,669 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2023-10-12 17:41:56,759 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-10-12 17:41:56,763 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2023-10-12 17:41:56,763 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:41:56,763 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:41:56,763 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:41:56,763 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:41:56,763 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-10-12 17:41:56,763 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:41:56,763 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:41:56,763 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:41:56,763 INFO L133 ssoRankerPreferences]: Filename of dumped script: mult-4.wvr.bpl_BEv2_Iteration4_Loop [2023-10-12 17:41:56,763 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:41:56,763 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:41:56,764 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 17:41:56,769 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 17:41:56,811 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:41:56,811 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-10-12 17:41:56,811 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:41:56,811 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:41:56,812 INFO L229 MonitoredProcess]: Starting monitored process 22 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 17:41:56,815 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2023-10-12 17:41:56,817 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 17:41:56,824 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:41:56,824 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-10-12 17:41:56,824 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:41:56,824 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:41:56,824 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:41:56,825 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-10-12 17:41:56,825 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-10-12 17:41:56,840 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-10-12 17:41:56,859 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-10-12 17:41:56,859 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-10-12 17:41:56,859 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:41:56,859 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:41:56,861 INFO L229 MonitoredProcess]: Starting monitored process 23 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 17:41:56,870 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-10-12 17:41:56,870 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-10-12 17:41:56,870 INFO L513 LassoAnalysis]: Proved termination. [2023-10-12 17:41:56,870 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(j2, M2) = -1*j2 + 1*M2 Supporting invariants [] [2023-10-12 17:41:56,873 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2023-10-12 17:41:56,879 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2023-10-12 17:41:56,880 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-10-12 17:41:56,891 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:41:56,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:41:56,903 INFO L262 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 2 conjunts are in the unsatisfiable core [2023-10-12 17:41:56,904 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:41:56,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:41:56,919 WARN L260 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-10-12 17:41:56,920 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:41:56,920 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 17:41:56,921 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 17:41:56,997 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 17:41:56,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 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 17:41:56,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 216 transitions. [2023-10-12 17:41:56,999 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 216 transitions. Stem has 6 letters. Loop has 1 letters. [2023-10-12 17:41:57,000 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:41:57,000 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 216 transitions. Stem has 7 letters. Loop has 1 letters. [2023-10-12 17:41:57,000 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:41:57,000 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 216 transitions. Stem has 6 letters. Loop has 2 letters. [2023-10-12 17:41:57,000 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:41:57,000 INFO L430 stractBuchiCegarLoop]: Abstraction has has 43 places, 992 transitions, 13008 flow [2023-10-12 17:41:57,000 INFO L337 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2023-10-12 17:41:57,000 INFO L67 RabinIsEmpty]: Start rabinIsEmpty. Operand has 43 places, 992 transitions, 13008 flow [2023-10-12 17:41:57,118 INFO L124 PetriNetUnfolderBase]: 462/627 cut-off events. [2023-10-12 17:41:57,118 INFO L125 PetriNetUnfolderBase]: For 146/146 co-relation queries the response was YES. [2023-10-12 17:41:57,118 INFO L72 RabinIsEmpty]: Finished rabinIsEmpty language is empty [2023-10-12 17:41:57,123 INFO L201 PluginConnector]: Adding new model mult-4.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 12.10 05:41:57 BoogieIcfgContainer [2023-10-12 17:41:57,123 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-10-12 17:41:57,124 INFO L158 Benchmark]: Toolchain (without parser) took 3662.95ms. Allocated memory was 181.4MB in the beginning and 284.2MB in the end (delta: 102.8MB). Free memory was 135.3MB in the beginning and 154.0MB in the end (delta: -18.8MB). Peak memory consumption was 83.9MB. Max. memory is 8.0GB. [2023-10-12 17:41:57,124 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.25ms. Allocated memory is still 181.4MB. Free memory is still 136.4MB. There was no memory consumed. Max. memory is 8.0GB. [2023-10-12 17:41:57,125 INFO L158 Benchmark]: Boogie Procedure Inliner took 23.20ms. Allocated memory is still 181.4MB. Free memory was 135.3MB in the beginning and 133.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-10-12 17:41:57,125 INFO L158 Benchmark]: Boogie Preprocessor took 23.02ms. Allocated memory is still 181.4MB. Free memory was 133.6MB in the beginning and 132.6MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-10-12 17:41:57,127 INFO L158 Benchmark]: RCFGBuilder took 235.38ms. Allocated memory is still 181.4MB. Free memory was 132.6MB in the beginning and 121.8MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2023-10-12 17:41:57,127 INFO L158 Benchmark]: BuchiAutomizer took 3377.17ms. Allocated memory was 181.4MB in the beginning and 284.2MB in the end (delta: 102.8MB). Free memory was 121.6MB in the beginning and 154.0MB in the end (delta: -32.4MB). Peak memory consumption was 70.2MB. Max. memory is 8.0GB. [2023-10-12 17:41:57,128 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 0.25ms. Allocated memory is still 181.4MB. Free memory is still 136.4MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 23.20ms. Allocated memory is still 181.4MB. Free memory was 135.3MB in the beginning and 133.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 23.02ms. Allocated memory is still 181.4MB. Free memory was 133.6MB in the beginning and 132.6MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 235.38ms. Allocated memory is still 181.4MB. Free memory was 132.6MB in the beginning and 121.8MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * BuchiAutomizer took 3377.17ms. Allocated memory was 181.4MB in the beginning and 284.2MB in the end (delta: 102.8MB). Free memory was 121.6MB in the beginning and 154.0MB in the end (delta: -32.4MB). Peak memory consumption was 70.2MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 5 terminating modules (1 trivial, 4 deterministic, 0 nondeterministic). One deterministic module has affine ranking function N1 + -1 * i1 and consists of 4 locations. One deterministic module has affine ranking function -1 * i2 + N2 and consists of 4 locations. One deterministic module has affine ranking function -1 * j1 + M1 and consists of 4 locations. One deterministic module has affine ranking function -1 * j2 + M2 and consists of 4 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.2s and 5 iterations. TraceHistogramMax:0. Analysis of lassos took 2.0s. Construction of modules took 0.2s. Büchi inclusion checks took 0.4s. 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 [4, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 410 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 406 mSDsluCounter, 292 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 92 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 350 IncrementalHoareTripleChecker+Invalid, 360 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 200 mSDtfsCounter, 350 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT3 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital16 mio100 ax100 hnf100 lsp61 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 32ms VariablesStem: 0 VariablesLoop: 3 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 3 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 4 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.7s InitialAbstractionConstructionTime: 0.3s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.3s, 41 PlacesBefore, 28 PlacesAfterwards, 32 TransitionsBefore, 19 TransitionsAfterwards, 288 CoEnabledTransitionPairs, 2 FixpointIterations, 6 TrivialSequentialCompositions, 8 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 14 TotalNumberOfCompositions, 207 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 207, independent: 207, independent conditional: 0, independent unconditional: 207, 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: 162, independent: 162, independent conditional: 0, independent unconditional: 162, 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: 162, independent: 162, independent conditional: 0, independent unconditional: 162, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 207, independent: 45, independent conditional: 0, independent unconditional: 45, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 162, unknown conditional: 0, unknown unconditional: 162] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 36, Positive conditional cache size: 0, Positive unconditional cache size: 36, 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 17:41:57,140 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2023-10-12 17:41:57,341 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2023-10-12 17:41:57,544 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request...