/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/BuchiAutomizerBplInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Termination-32bit-Automizer_Default.epf --buchiautomizer.automaton.type.for.concurrent.programs RABIN_PETRI_NET -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/max-fun-alt.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.fs.rabin-petrinet-4c29625-m [2023-10-12 17:40:18,518 INFO L172 SettingsManager]: Resetting all preferences to default values... [2023-10-12 17:40:18,564 INFO L100 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Termination-32bit-Automizer_Default.epf [2023-10-12 17:40:18,586 INFO L114 SettingsManager]: Preferences different from defaults after loading the file: [2023-10-12 17:40:18,586 INFO L135 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-10-12 17:40:18,587 INFO L137 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-10-12 17:40:18,588 INFO L135 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-10-12 17:40:18,589 INFO L137 SettingsManager]: * Create parallel compositions if possible=false [2023-10-12 17:40:18,589 INFO L137 SettingsManager]: * Use SBE=true [2023-10-12 17:40:18,592 INFO L135 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-10-12 17:40:18,593 INFO L137 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-10-12 17:40:18,593 INFO L137 SettingsManager]: * Use old map elimination=false [2023-10-12 17:40:18,593 INFO L137 SettingsManager]: * Use external solver (rank synthesis)=false [2023-10-12 17:40:18,594 INFO L137 SettingsManager]: * Use only trivial implications for array writes=true [2023-10-12 17:40:18,594 INFO L137 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-10-12 17:40:18,594 INFO L135 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-10-12 17:40:18,594 INFO L137 SettingsManager]: * sizeof long=4 [2023-10-12 17:40:18,595 INFO L137 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-10-12 17:40:18,595 INFO L137 SettingsManager]: * Overapproximate operations on floating types=true [2023-10-12 17:40:18,595 INFO L137 SettingsManager]: * sizeof POINTER=4 [2023-10-12 17:40:18,595 INFO L137 SettingsManager]: * Check division by zero=IGNORE [2023-10-12 17:40:18,596 INFO L137 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-10-12 17:40:18,596 INFO L137 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-10-12 17:40:18,596 INFO L137 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-10-12 17:40:18,597 INFO L137 SettingsManager]: * sizeof long double=12 [2023-10-12 17:40:18,597 INFO L137 SettingsManager]: * Check if freed pointer was valid=false [2023-10-12 17:40:18,597 INFO L137 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-10-12 17:40:18,597 INFO L137 SettingsManager]: * Use constant arrays=true [2023-10-12 17:40:18,597 INFO L137 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-10-12 17:40:18,598 INFO L135 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-10-12 17:40:18,598 INFO L137 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-10-12 17:40:18,599 INFO L135 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-10-12 17:40:18,599 INFO L137 SettingsManager]: * Trace refinement strategy=CAMEL [2023-10-12 17:40:18,600 INFO L135 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-10-12 17:40:18,600 INFO L137 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: Automaton type for concurrent programs -> RABIN_PETRI_NET [2023-10-12 17:40:18,844 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-10-12 17:40:18,872 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-10-12 17:40:18,875 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-10-12 17:40:18,876 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2023-10-12 17:40:18,876 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2023-10-12 17:40:18,877 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/max-fun-alt.wvr.bpl [2023-10-12 17:40:18,878 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/max-fun-alt.wvr.bpl' [2023-10-12 17:40:18,907 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-10-12 17:40:18,908 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2023-10-12 17:40:18,910 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-10-12 17:40:18,910 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-10-12 17:40:18,910 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-10-12 17:40:18,920 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "max-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:40:18" (1/1) ... [2023-10-12 17:40:18,927 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "max-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:40:18" (1/1) ... [2023-10-12 17:40:18,933 INFO L138 Inliner]: procedures = 4, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2023-10-12 17:40:18,934 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-10-12 17:40:18,935 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-10-12 17:40:18,936 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-10-12 17:40:18,936 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-10-12 17:40:18,943 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "max-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:40:18" (1/1) ... [2023-10-12 17:40:18,944 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "max-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:40:18" (1/1) ... [2023-10-12 17:40:18,945 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "max-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:40:18" (1/1) ... [2023-10-12 17:40:18,946 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "max-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:40:18" (1/1) ... [2023-10-12 17:40:18,949 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "max-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:40:18" (1/1) ... [2023-10-12 17:40:18,953 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "max-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:40:18" (1/1) ... [2023-10-12 17:40:18,954 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "max-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:40:18" (1/1) ... [2023-10-12 17:40:18,955 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "max-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:40:18" (1/1) ... [2023-10-12 17:40:18,956 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-10-12 17:40:18,957 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-10-12 17:40:18,957 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-10-12 17:40:18,957 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-10-12 17:40:18,958 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "max-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:40:18" (1/1) ... [2023-10-12 17:40:18,964 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:40:18,975 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:40:18,988 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:40:19,000 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-10-12 17:40:19,031 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2023-10-12 17:40:19,031 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-10-12 17:40:19,032 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-10-12 17:40:19,032 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2023-10-12 17:40:19,032 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-10-12 17:40:19,032 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-10-12 17:40:19,032 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2023-10-12 17:40:19,032 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-10-12 17:40:19,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-10-12 17:40:19,033 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2023-10-12 17:40:19,033 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-10-12 17:40:19,033 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-10-12 17:40:19,034 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-10-12 17:40:19,088 INFO L236 CfgBuilder]: Building ICFG [2023-10-12 17:40:19,089 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-10-12 17:40:19,174 INFO L277 CfgBuilder]: Performing block encoding [2023-10-12 17:40:19,188 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-10-12 17:40:19,189 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-10-12 17:40:19,191 INFO L201 PluginConnector]: Adding new model max-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:40:19 BoogieIcfgContainer [2023-10-12 17:40:19,191 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-10-12 17:40:19,192 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-10-12 17:40:19,192 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-10-12 17:40:19,195 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-10-12 17:40:19,196 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-10-12 17:40:19,196 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "max-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:40:18" (1/2) ... [2023-10-12 17:40:19,197 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@379b7a78 and model type max-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 12.10 05:40:19, skipping insertion in model container [2023-10-12 17:40:19,197 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-10-12 17:40:19,197 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "max-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:40:19" (2/2) ... [2023-10-12 17:40:19,199 INFO L332 chiAutomizerObserver]: Analyzing ICFG max-fun-alt.wvr.bpl [2023-10-12 17:40:19,250 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-10-12 17:40:19,290 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 36 places, 32 transitions, 88 flow [2023-10-12 17:40:19,329 INFO L124 PetriNetUnfolderBase]: 3/26 cut-off events. [2023-10-12 17:40:19,329 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-10-12 17:40:19,334 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39 conditions, 26 events. 3/26 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 36 event pairs, 0 based on Foata normal form. 0/22 useless extension candidates. Maximal degree in co-relation 18. Up to 2 conditions per place. [2023-10-12 17:40:19,334 INFO L82 GeneralOperation]: Start removeDead. Operand has 36 places, 32 transitions, 88 flow [2023-10-12 17:40:19,339 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 33 places, 26 transitions, 70 flow [2023-10-12 17:40:19,344 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-10-12 17:40:19,369 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 33 places, 26 transitions, 70 flow [2023-10-12 17:40:19,372 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 33 places, 26 transitions, 70 flow [2023-10-12 17:40:19,372 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 33 places, 26 transitions, 70 flow [2023-10-12 17:40:19,385 INFO L124 PetriNetUnfolderBase]: 3/26 cut-off events. [2023-10-12 17:40:19,386 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-10-12 17:40:19,387 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39 conditions, 26 events. 3/26 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 36 event pairs, 0 based on Foata normal form. 0/22 useless extension candidates. Maximal degree in co-relation 18. Up to 2 conditions per place. [2023-10-12 17:40:19,388 INFO L119 LiptonReduction]: Number of co-enabled transitions 144 [2023-10-12 17:40:19,656 INFO L134 LiptonReduction]: Checked pairs total: 106 [2023-10-12 17:40:19,657 INFO L136 LiptonReduction]: Total number of compositions: 12 [2023-10-12 17:40:19,671 INFO L305 stractBuchiCegarLoop]: Interprodecural is true [2023-10-12 17:40:19,672 INFO L306 stractBuchiCegarLoop]: Hoare is false [2023-10-12 17:40:19,672 INFO L307 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-10-12 17:40:19,672 INFO L308 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-10-12 17:40:19,672 INFO L309 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-10-12 17:40:19,672 INFO L310 stractBuchiCegarLoop]: Difference is false [2023-10-12 17:40:19,673 INFO L311 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-10-12 17:40:19,673 INFO L315 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == RabinPetriNetCegarLoop ======== [2023-10-12 17:40:19,673 INFO L67 RabinIsEmpty]: Start rabinIsEmpty. Operand has 22 places, 15 transitions, 48 flow [2023-10-12 17:40:19,679 ERROR L47 etriNetUnfolderRabin]: [1:1A:[102] $Ultimate##0-->L58: Formula: (and (= v_M_14 v_k_19) (< v_M_14 v_N_16) (= v_i_19 0) (<= 0 v_M_14) (= v_i_19 v_max1_19) (= v_i_19 v_j_19) (= v_i_19 v_max2_29)) InVars {N=v_N_16, M=v_M_14, k=v_k_19, j=v_j_19, i=v_i_19, max1=v_max1_19, max2=v_max2_29} OutVars{N=v_N_16, M=v_M_14, k=v_k_19, j=v_j_19, i=v_i_19, max1=v_max1_19, max2=v_max2_29} AuxVars[] AssignedVars[][13], 2:2A:[81] L58-->L22-1: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0][2]][3:3A:[99] L22-1-->L22-1: Formula: (and (= v_i_15 (+ v_i_16 1)) (= v_max1_15 (let ((.cse0 (select v_A_14 v_i_16))) (ite (< v_max1_16 .cse0) .cse0 v_max1_16))) (< v_i_16 v_N_12)) InVars {A=v_A_14, N=v_N_12, i=v_i_16, max1=v_max1_16} OutVars{A=v_A_14, N=v_N_12, i=v_i_15, max1=v_max1_15} AuxVars[] AssignedVars[i, max1][6]] [2023-10-12 17:40:19,681 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-10-12 17:40:19,682 INFO L124 PetriNetUnfolderBase]: 0/2 cut-off events. [2023-10-12 17:40:19,682 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-10-12 17:40:19,682 INFO L72 RabinIsEmpty]: Finished rabinIsEmpty language is not empty [2023-10-12 17:40:19,684 INFO L337 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-10-12 17:40:19,685 INFO L67 RabinIsEmpty]: Start rabinIsEmpty. Operand has 22 places, 15 transitions, 48 flow [2023-10-12 17:40:19,686 ERROR L47 etriNetUnfolderRabin]: [1:1A:[102] $Ultimate##0-->L58: Formula: (and (= v_M_14 v_k_19) (< v_M_14 v_N_16) (= v_i_19 0) (<= 0 v_M_14) (= v_i_19 v_max1_19) (= v_i_19 v_j_19) (= v_i_19 v_max2_29)) InVars {N=v_N_16, M=v_M_14, k=v_k_19, j=v_j_19, i=v_i_19, max1=v_max1_19, max2=v_max2_29} OutVars{N=v_N_16, M=v_M_14, k=v_k_19, j=v_j_19, i=v_i_19, max1=v_max1_19, max2=v_max2_29} AuxVars[] AssignedVars[][13], 2:2A:[81] L58-->L22-1: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0][2]][3:3A:[99] L22-1-->L22-1: Formula: (and (= v_i_15 (+ v_i_16 1)) (= v_max1_15 (let ((.cse0 (select v_A_14 v_i_16))) (ite (< v_max1_16 .cse0) .cse0 v_max1_16))) (< v_i_16 v_N_12)) InVars {A=v_A_14, N=v_N_12, i=v_i_16, max1=v_max1_16} OutVars{A=v_A_14, N=v_N_12, i=v_i_15, max1=v_max1_15} AuxVars[] AssignedVars[i, max1][6]] [2023-10-12 17:40:19,686 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-10-12 17:40:19,686 INFO L124 PetriNetUnfolderBase]: 0/2 cut-off events. [2023-10-12 17:40:19,687 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-10-12 17:40:19,687 INFO L72 RabinIsEmpty]: Finished rabinIsEmpty language is not empty [2023-10-12 17:40:19,692 INFO L748 eck$LassoCheckResult]: Stem: 40#[$Ultimate##0]true [102] $Ultimate##0-->L58: Formula: (and (= v_M_14 v_k_19) (< v_M_14 v_N_16) (= v_i_19 0) (<= 0 v_M_14) (= v_i_19 v_max1_19) (= v_i_19 v_j_19) (= v_i_19 v_max2_29)) InVars {N=v_N_16, M=v_M_14, k=v_k_19, j=v_j_19, i=v_i_19, max1=v_max1_19, max2=v_max2_29} OutVars{N=v_N_16, M=v_M_14, k=v_k_19, j=v_j_19, i=v_i_19, max1=v_max1_19, max2=v_max2_29} AuxVars[] AssignedVars[] 42#[L58]true [81] L58-->L22-1: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0] 44#[L22-1, L58-1]true [2023-10-12 17:40:19,692 INFO L750 eck$LassoCheckResult]: Loop: 44#[L22-1, L58-1]true [99] L22-1-->L22-1: Formula: (and (= v_i_15 (+ v_i_16 1)) (= v_max1_15 (let ((.cse0 (select v_A_14 v_i_16))) (ite (< v_max1_16 .cse0) .cse0 v_max1_16))) (< v_i_16 v_N_12)) InVars {A=v_A_14, N=v_N_12, i=v_i_16, max1=v_max1_16} OutVars{A=v_A_14, N=v_N_12, i=v_i_15, max1=v_max1_15} AuxVars[] AssignedVars[i, max1] 44#[L22-1, L58-1]true [2023-10-12 17:40:19,697 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:40:19,697 INFO L85 PathProgramCache]: Analyzing trace with hash 4204, now seen corresponding path program 1 times [2023-10-12 17:40:19,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:40:19,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465058624] [2023-10-12 17:40:19,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:40:19,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:40:19,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:40:19,794 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:40:19,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:40:19,841 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:40:19,844 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:40:19,844 INFO L85 PathProgramCache]: Analyzing trace with hash 130, now seen corresponding path program 1 times [2023-10-12 17:40:19,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:40:19,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151801561] [2023-10-12 17:40:19,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:40:19,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:40:19,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:40:19,863 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:40:19,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:40:19,880 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:40:19,881 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:40:19,881 INFO L85 PathProgramCache]: Analyzing trace with hash 130423, now seen corresponding path program 1 times [2023-10-12 17:40:19,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:40:19,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593812462] [2023-10-12 17:40:19,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:40:19,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:40:19,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:40:19,899 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:40:19,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:40:19,914 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:40:20,031 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:40:20,031 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:40:20,032 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:40:20,032 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:40:20,032 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-10-12 17:40:20,032 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:40:20,032 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:40:20,032 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:40:20,032 INFO L133 ssoRankerPreferences]: Filename of dumped script: max-fun-alt.wvr.bpl_BEv2_Iteration1_Lasso [2023-10-12 17:40:20,032 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:40:20,032 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:40:20,047 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:40:20,055 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:40:20,096 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:40:20,099 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:40:20,217 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:40:20,220 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-10-12 17:40:20,222 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:40:20,222 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:40:20,233 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:40:20,240 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-10-12 17:40:20,248 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:40:20,248 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:40:20,248 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:40:20,248 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:40:20,255 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:40:20,255 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:40:20,261 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2023-10-12 17:40:20,273 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:40:20,280 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 17:40:20,280 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:40:20,281 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:40:20,285 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:40:20,289 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-10-12 17:40:20,290 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-10-12 17:40:20,297 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:40:20,297 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:40:20,298 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:40:20,298 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:40:20,305 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:40:20,305 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:40:20,326 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-10-12 17:40:20,361 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2023-10-12 17:40:20,361 INFO L444 ModelExtractionUtils]: 4 out of 16 variables were initially zero. Simplification set additionally 9 variables to zero. [2023-10-12 17:40:20,363 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:40:20,363 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:40:20,369 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:40:20,380 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-10-12 17:40:20,388 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-10-12 17:40:20,406 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2023-10-12 17:40:20,406 INFO L513 LassoAnalysis]: Proved termination. [2023-10-12 17:40:20,407 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(i, N) = -1*i + 1*N Supporting invariants [] [2023-10-12 17:40:20,413 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2023-10-12 17:40:20,417 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-10-12 17:40:20,441 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:40:20,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:40:20,454 INFO L262 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 2 conjunts are in the unsatisfiable core [2023-10-12 17:40:20,455 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:40:20,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:40:20,471 WARN L260 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2023-10-12 17:40:20,475 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:40:20,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-10-12 17:40:20,512 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2023-10-12 17:40:20,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-10-12 17:40:20,627 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 17:40:20,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 176 transitions. [2023-10-12 17:40:20,632 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 176 transitions. Stem has 2 letters. Loop has 1 letters. [2023-10-12 17:40:20,632 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:40:20,632 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 176 transitions. Stem has 3 letters. Loop has 1 letters. [2023-10-12 17:40:20,632 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:40:20,633 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 176 transitions. Stem has 2 letters. Loop has 2 letters. [2023-10-12 17:40:20,633 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:40:20,633 INFO L430 stractBuchiCegarLoop]: Abstraction has has 26 places, 60 transitions, 312 flow [2023-10-12 17:40:20,633 INFO L337 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-10-12 17:40:20,633 INFO L67 RabinIsEmpty]: Start rabinIsEmpty. Operand has 26 places, 60 transitions, 312 flow [2023-10-12 17:40:20,635 ERROR L47 etriNetUnfolderRabin]: [1:1A:[102] $Ultimate##0-->L58: Formula: (and (= v_M_14 v_k_19) (< v_M_14 v_N_16) (= v_i_19 0) (<= 0 v_M_14) (= v_i_19 v_max1_19) (= v_i_19 v_j_19) (= v_i_19 v_max2_29)) InVars {N=v_N_16, M=v_M_14, k=v_k_19, j=v_j_19, i=v_i_19, max1=v_max1_19, max2=v_max2_29} OutVars{N=v_N_16, M=v_M_14, k=v_k_19, j=v_j_19, i=v_i_19, max1=v_max1_19, max2=v_max2_29} AuxVars[] AssignedVars[][52], 2:2A:[81] L58-->L22-1: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0][8], 4:3A:[84] L58-1-->L33-1: Formula: (and (= 2 v_thread2Thread1of1ForFork1_thidvar1_2) (= 2 v_thread2Thread1of1ForFork1_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_2, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_thidvar0, thread2Thread1of1ForFork1_thidvar1][18]][5:4A:[97] L33-1-->L33-1: Formula: (and (= v_j_15 (+ v_j_16 1)) (= (let ((.cse0 (select v_A_12 v_j_16))) (ite (< v_max2_26 .cse0) .cse0 v_max2_26)) v_max2_25) (< v_j_16 v_M_10)) InVars {A=v_A_12, M=v_M_10, j=v_j_16, max2=v_max2_26} OutVars{A=v_A_12, M=v_M_10, j=v_j_15, max2=v_max2_25} AuxVars[] AssignedVars[j, max2][43]] [2023-10-12 17:40:20,635 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-10-12 17:40:20,635 INFO L124 PetriNetUnfolderBase]: 1/4 cut-off events. [2023-10-12 17:40:20,635 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-10-12 17:40:20,635 INFO L72 RabinIsEmpty]: Finished rabinIsEmpty language is not empty [2023-10-12 17:40:20,636 INFO L748 eck$LassoCheckResult]: Stem: 40#[$Ultimate##0]true [102] $Ultimate##0-->L58: Formula: (and (= v_M_14 v_k_19) (< v_M_14 v_N_16) (= v_i_19 0) (<= 0 v_M_14) (= v_i_19 v_max1_19) (= v_i_19 v_j_19) (= v_i_19 v_max2_29)) InVars {N=v_N_16, M=v_M_14, k=v_k_19, j=v_j_19, i=v_i_19, max1=v_max1_19, max2=v_max2_29} OutVars{N=v_N_16, M=v_M_14, k=v_k_19, j=v_j_19, i=v_i_19, max1=v_max1_19, max2=v_max2_29} AuxVars[] AssignedVars[] 42#[L58]true [81] L58-->L22-1: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0] 44#[L22-1, L58-1]true [84] L58-1-->L33-1: Formula: (and (= 2 v_thread2Thread1of1ForFork1_thidvar1_2) (= 2 v_thread2Thread1of1ForFork1_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_2, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_thidvar0, thread2Thread1of1ForFork1_thidvar1] 79#[L22-1, L59, L33-1]true [2023-10-12 17:40:20,636 INFO L750 eck$LassoCheckResult]: Loop: 79#[L22-1, L59, L33-1]true [97] L33-1-->L33-1: Formula: (and (= v_j_15 (+ v_j_16 1)) (= (let ((.cse0 (select v_A_12 v_j_16))) (ite (< v_max2_26 .cse0) .cse0 v_max2_26)) v_max2_25) (< v_j_16 v_M_10)) InVars {A=v_A_12, M=v_M_10, j=v_j_16, max2=v_max2_26} OutVars{A=v_A_12, M=v_M_10, j=v_j_15, max2=v_max2_25} AuxVars[] AssignedVars[j, max2] 79#[L22-1, L59, L33-1]true [2023-10-12 17:40:20,640 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:40:20,642 INFO L85 PathProgramCache]: Analyzing trace with hash 130408, now seen corresponding path program 1 times [2023-10-12 17:40:20,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:40:20,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873491315] [2023-10-12 17:40:20,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:40:20,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:40:20,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:40:20,654 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:40:20,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:40:20,658 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:40:20,658 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:40:20,658 INFO L85 PathProgramCache]: Analyzing trace with hash 128, now seen corresponding path program 1 times [2023-10-12 17:40:20,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:40:20,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664163366] [2023-10-12 17:40:20,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:40:20,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:40:20,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:40:20,673 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:40:20,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:40:20,678 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:40:20,678 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:40:20,678 INFO L85 PathProgramCache]: Analyzing trace with hash 4042745, now seen corresponding path program 1 times [2023-10-12 17:40:20,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:40:20,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867166216] [2023-10-12 17:40:20,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:40:20,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:40:20,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:40:20,695 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:40:20,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:40:20,702 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:40:20,828 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:40:20,829 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:40:20,829 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:40:20,829 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:40:20,829 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-10-12 17:40:20,829 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:40:20,829 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:40:20,829 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:40:20,829 INFO L133 ssoRankerPreferences]: Filename of dumped script: max-fun-alt.wvr.bpl_BEv2_Iteration2_Lasso [2023-10-12 17:40:20,829 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:40:20,829 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:40:20,831 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:40:20,835 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:40:20,875 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:40:20,879 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:40:20,881 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:40:20,885 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:40:21,020 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:40:21,021 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-10-12 17:40:21,021 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:40:21,021 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:40:21,023 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:40:21,027 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-10-12 17:40:21,029 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-10-12 17:40:21,037 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:40:21,037 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:40:21,037 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:40:21,037 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:40:21,051 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:40:21,052 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:40:21,069 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:40:21,077 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2023-10-12 17:40:21,077 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:40:21,077 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:40:21,079 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:40:21,081 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-10-12 17:40:21,083 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-10-12 17:40:21,090 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:40:21,091 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:40:21,091 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2023-10-12 17:40:21,091 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:40:21,102 INFO L401 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2023-10-12 17:40:21,103 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2023-10-12 17:40:21,125 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:40:21,133 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2023-10-12 17:40:21,133 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:40:21,133 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:40:21,181 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:40:21,183 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2023-10-12 17:40:21,184 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-10-12 17:40:21,191 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:40:21,192 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:40:21,192 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:40:21,192 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:40:21,200 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:40:21,200 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:40:21,213 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-10-12 17:40:21,225 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2023-10-12 17:40:21,225 INFO L444 ModelExtractionUtils]: 9 out of 16 variables were initially zero. Simplification set additionally 4 variables to zero. [2023-10-12 17:40:21,226 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:40:21,226 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:40:21,229 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:40:21,232 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-10-12 17:40:21,244 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2023-10-12 17:40:21,254 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2023-10-12 17:40:21,254 INFO L513 LassoAnalysis]: Proved termination. [2023-10-12 17:40:21,254 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(M, j) = 1*M - 1*j Supporting invariants [] [2023-10-12 17:40:21,261 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 17:40:21,262 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-10-12 17:40:21,276 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:40:21,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:40:21,286 INFO L262 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 2 conjunts are in the unsatisfiable core [2023-10-12 17:40:21,287 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:40:21,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:40:21,297 WARN L260 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2023-10-12 17:40:21,297 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:40:21,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-10-12 17:40:21,298 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2023-10-12 17:40:21,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-10-12 17:40:21,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-10-12 17:40:21,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 176 transitions. [2023-10-12 17:40:21,388 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 176 transitions. Stem has 3 letters. Loop has 1 letters. [2023-10-12 17:40:21,388 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:40:21,388 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 176 transitions. Stem has 4 letters. Loop has 1 letters. [2023-10-12 17:40:21,388 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:40:21,388 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 176 transitions. Stem has 3 letters. Loop has 2 letters. [2023-10-12 17:40:21,388 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:40:21,389 INFO L430 stractBuchiCegarLoop]: Abstraction has has 30 places, 240 transitions, 1728 flow [2023-10-12 17:40:21,389 INFO L337 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-10-12 17:40:21,389 INFO L67 RabinIsEmpty]: Start rabinIsEmpty. Operand has 30 places, 240 transitions, 1728 flow [2023-10-12 17:40:21,392 ERROR L47 etriNetUnfolderRabin]: [1:1A:[102] $Ultimate##0-->L58: Formula: (and (= v_M_14 v_k_19) (< v_M_14 v_N_16) (= v_i_19 0) (<= 0 v_M_14) (= v_i_19 v_max1_19) (= v_i_19 v_j_19) (= v_i_19 v_max2_29)) InVars {N=v_N_16, M=v_M_14, k=v_k_19, j=v_j_19, i=v_i_19, max1=v_max1_19, max2=v_max2_29} OutVars{N=v_N_16, M=v_M_14, k=v_k_19, j=v_j_19, i=v_i_19, max1=v_max1_19, max2=v_max2_29} AuxVars[] AssignedVars[][209], 2:2A:[81] L58-->L22-1: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0][33], 4:3A:[84] L58-1-->L33-1: 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][73], 7:4A:[87] L59-->L44-1: 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][15]][8:5A:[95] L44-1-->L44-1: Formula: (and (= v_k_15 (+ v_k_16 1)) (= (let ((.cse0 (select v_A_10 v_k_16))) (ite (< v_max2_22 .cse0) .cse0 v_max2_22)) v_max2_21) (< v_k_16 v_N_8)) InVars {A=v_A_10, N=v_N_8, k=v_k_16, max2=v_max2_22} OutVars{A=v_A_10, N=v_N_8, k=v_k_15, max2=v_max2_21} AuxVars[] AssignedVars[k, max2][206]] [2023-10-12 17:40:21,392 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-10-12 17:40:21,392 INFO L124 PetriNetUnfolderBase]: 2/7 cut-off events. [2023-10-12 17:40:21,392 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-10-12 17:40:21,392 INFO L72 RabinIsEmpty]: Finished rabinIsEmpty language is not empty [2023-10-12 17:40:21,393 INFO L748 eck$LassoCheckResult]: Stem: 40#[$Ultimate##0]true [102] $Ultimate##0-->L58: Formula: (and (= v_M_14 v_k_19) (< v_M_14 v_N_16) (= v_i_19 0) (<= 0 v_M_14) (= v_i_19 v_max1_19) (= v_i_19 v_j_19) (= v_i_19 v_max2_29)) InVars {N=v_N_16, M=v_M_14, k=v_k_19, j=v_j_19, i=v_i_19, max1=v_max1_19, max2=v_max2_29} OutVars{N=v_N_16, M=v_M_14, k=v_k_19, j=v_j_19, i=v_i_19, max1=v_max1_19, max2=v_max2_29} AuxVars[] AssignedVars[] 42#[L58]true [81] L58-->L22-1: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0] 44#[L22-1, L58-1]true [84] L58-1-->L33-1: Formula: (and (= 2 v_thread2Thread1of1ForFork1_thidvar1_2) (= 2 v_thread2Thread1of1ForFork1_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_2, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_thidvar0, thread2Thread1of1ForFork1_thidvar1] 79#[L22-1, L59, L33-1]true [87] L59-->L44-1: Formula: (and (= 3 v_thread3Thread1of1ForFork2_thidvar0_2) (= 3 v_thread3Thread1of1ForFork2_thidvar1_2) (= 3 v_thread3Thread1of1ForFork2_thidvar2_2)) InVars {} OutVars{thread3Thread1of1ForFork2_thidvar2=v_thread3Thread1of1ForFork2_thidvar2_2, thread3Thread1of1ForFork2_thidvar1=v_thread3Thread1of1ForFork2_thidvar1_2, thread3Thread1of1ForFork2_thidvar0=v_thread3Thread1of1ForFork2_thidvar0_2} AuxVars[] AssignedVars[thread3Thread1of1ForFork2_thidvar2, thread3Thread1of1ForFork2_thidvar1, thread3Thread1of1ForFork2_thidvar0] 113#[L22-1, L60, L33-1, L44-1]true [2023-10-12 17:40:21,393 INFO L750 eck$LassoCheckResult]: Loop: 113#[L22-1, L60, L33-1, L44-1]true [95] L44-1-->L44-1: Formula: (and (= v_k_15 (+ v_k_16 1)) (= (let ((.cse0 (select v_A_10 v_k_16))) (ite (< v_max2_22 .cse0) .cse0 v_max2_22)) v_max2_21) (< v_k_16 v_N_8)) InVars {A=v_A_10, N=v_N_8, k=v_k_16, max2=v_max2_22} OutVars{A=v_A_10, N=v_N_8, k=v_k_15, max2=v_max2_21} AuxVars[] AssignedVars[k, max2] 113#[L22-1, L60, L33-1, L44-1]true [2023-10-12 17:40:21,394 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:40:21,394 INFO L85 PathProgramCache]: Analyzing trace with hash 4042735, now seen corresponding path program 1 times [2023-10-12 17:40:21,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:40:21,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872751706] [2023-10-12 17:40:21,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:40:21,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:40:21,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:40:21,410 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:40:21,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:40:21,426 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:40:21,426 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:40:21,427 INFO L85 PathProgramCache]: Analyzing trace with hash 126, now seen corresponding path program 1 times [2023-10-12 17:40:21,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:40:21,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968823352] [2023-10-12 17:40:21,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:40:21,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:40:21,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:40:21,444 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:40:21,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:40:21,450 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:40:21,451 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:40:21,451 INFO L85 PathProgramCache]: Analyzing trace with hash 125324880, now seen corresponding path program 1 times [2023-10-12 17:40:21,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:40:21,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607870650] [2023-10-12 17:40:21,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:40:21,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:40:21,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:40:21,457 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:40:21,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:40:21,464 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:40:21,587 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:40:21,587 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:40:21,588 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:40:21,588 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:40:21,588 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-10-12 17:40:21,588 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:40:21,588 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:40:21,588 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:40:21,588 INFO L133 ssoRankerPreferences]: Filename of dumped script: max-fun-alt.wvr.bpl_BEv2_Iteration3_Lasso [2023-10-12 17:40:21,588 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:40:21,588 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:40:21,592 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:40:21,594 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:40:21,597 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:40:21,600 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:40:21,602 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:40:21,605 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:40:21,607 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:40:21,609 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:40:21,616 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:40:21,619 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:40:21,787 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:40:21,787 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-10-12 17:40:21,787 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:40:21,788 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:40:21,789 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:40:21,798 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-10-12 17:40:21,806 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:40:21,806 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:40:21,806 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:40:21,806 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:40:21,808 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:40:21,808 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:40:21,811 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2023-10-12 17:40:21,811 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:40:21,816 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2023-10-12 17:40:21,817 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:40:21,817 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:40:21,821 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:40:21,824 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2023-10-12 17:40:21,826 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-10-12 17:40:21,831 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:40:21,832 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:40:21,832 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:40:21,832 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:40:21,833 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:40:21,833 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:40:21,849 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:40:21,852 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2023-10-12 17:40:21,853 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:40:21,853 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:40:21,854 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:40:21,861 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-10-12 17:40:21,869 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:40:21,869 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:40:21,869 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:40:21,869 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:40:21,871 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:40:21,871 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:40:21,874 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2023-10-12 17:40:21,882 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:40:21,889 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 17:40:21,889 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:40:21,889 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:40:21,891 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 17:40:21,900 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-10-12 17:40:21,908 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:40:21,908 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:40:21,908 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:40:21,909 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:40:21,911 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:40:21,911 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:40:21,919 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 17:40:21,939 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:40:21,944 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 17:40:21,947 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 17:40:21,949 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:40:21,949 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:40:21,953 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2023-10-12 17:40:21,953 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 17:40:21,955 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 17:40:21,956 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-10-12 17:40:21,963 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:40:21,964 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:40:21,964 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:40:21,964 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:40:21,965 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:40:21,965 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:40:21,980 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:40:21,986 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 17:40:21,986 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:40:21,987 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:40:21,988 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 17:40:21,995 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 17:40:21,995 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-10-12 17:40:22,005 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:40:22,005 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:40:22,005 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:40:22,005 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:40:22,007 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:40:22,007 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:40:22,025 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:40:22,031 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 17:40:22,031 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:40:22,032 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:40:22,033 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 17:40:22,037 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-10-12 17:40:22,046 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:40:22,046 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:40:22,046 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:40:22,046 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:40:22,047 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 17:40:22,048 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:40:22,048 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:40:22,065 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:40:22,071 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 17:40:22,071 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:40:22,072 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:40:22,073 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 17:40:22,079 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-10-12 17:40:22,088 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:40:22,088 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:40:22,088 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:40:22,088 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:40:22,090 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:40:22,090 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:40:22,093 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 17:40:22,101 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:40:22,106 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2023-10-12 17:40:22,106 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:40:22,106 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:40:22,108 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 17:40:22,113 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-10-12 17:40:22,121 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:40:22,122 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:40:22,122 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:40:22,122 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:40:22,123 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:40:22,123 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:40:22,126 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 17:40:22,134 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:40:22,142 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 17:40:22,143 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:40:22,143 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:40:22,144 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 17:40:22,151 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-10-12 17:40:22,159 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:40:22,160 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:40:22,160 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2023-10-12 17:40:22,160 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:40:22,166 INFO L401 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2023-10-12 17:40:22,166 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2023-10-12 17:40:22,182 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 17:40:22,186 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:40:22,191 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 17:40:22,191 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:40:22,191 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:40:22,192 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 17:40:22,194 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 17:40:22,233 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-10-12 17:40:22,242 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:40:22,242 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:40:22,242 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:40:22,242 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:40:22,246 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:40:22,246 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:40:22,256 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-10-12 17:40:22,263 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2023-10-12 17:40:22,264 INFO L444 ModelExtractionUtils]: 6 out of 13 variables were initially zero. Simplification set additionally 4 variables to zero. [2023-10-12 17:40:22,264 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:40:22,264 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:40:22,265 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 17:40:22,271 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 17:40:22,271 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-10-12 17:40:22,277 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2023-10-12 17:40:22,278 INFO L513 LassoAnalysis]: Proved termination. [2023-10-12 17:40:22,278 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(k, N) = -1*k + 1*N Supporting invariants [] [2023-10-12 17:40:22,285 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 17:40:22,286 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-10-12 17:40:22,311 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:40:22,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:40:22,318 INFO L262 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 2 conjunts are in the unsatisfiable core [2023-10-12 17:40:22,318 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:40:22,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:40:22,328 WARN L260 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2023-10-12 17:40:22,329 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:40:22,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-10-12 17:40:22,329 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2023-10-12 17:40:22,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-10-12 17:40:22,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-10-12 17:40:22,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 176 transitions. [2023-10-12 17:40:22,396 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 176 transitions. Stem has 4 letters. Loop has 1 letters. [2023-10-12 17:40:22,396 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:40:22,396 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 176 transitions. Stem has 5 letters. Loop has 1 letters. [2023-10-12 17:40:22,396 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:40:22,396 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 176 transitions. Stem has 4 letters. Loop has 2 letters. [2023-10-12 17:40:22,396 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:40:22,396 INFO L430 stractBuchiCegarLoop]: Abstraction has has 34 places, 960 transitions, 8832 flow [2023-10-12 17:40:22,396 INFO L337 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-10-12 17:40:22,396 INFO L67 RabinIsEmpty]: Start rabinIsEmpty. Operand has 34 places, 960 transitions, 8832 flow [2023-10-12 17:40:22,429 INFO L124 PetriNetUnfolderBase]: 90/133 cut-off events. [2023-10-12 17:40:22,429 INFO L125 PetriNetUnfolderBase]: For 32/32 co-relation queries the response was YES. [2023-10-12 17:40:22,429 INFO L72 RabinIsEmpty]: Finished rabinIsEmpty language is empty [2023-10-12 17:40:22,434 INFO L201 PluginConnector]: Adding new model max-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 12.10 05:40:22 BoogieIcfgContainer [2023-10-12 17:40:22,434 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-10-12 17:40:22,435 INFO L158 Benchmark]: Toolchain (without parser) took 3526.64ms. Allocated memory was 182.5MB in the beginning and 288.4MB in the end (delta: 105.9MB). Free memory was 134.0MB in the beginning and 219.7MB in the end (delta: -85.7MB). Peak memory consumption was 22.7MB. Max. memory is 8.0GB. [2023-10-12 17:40:22,436 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.28ms. Allocated memory is still 182.5MB. Free memory was 135.2MB in the beginning and 135.1MB in the end (delta: 146.9kB). There was no memory consumed. Max. memory is 8.0GB. [2023-10-12 17:40:22,436 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.16ms. Allocated memory is still 182.5MB. Free memory was 133.9MB in the beginning and 132.3MB in the end (delta: 1.5MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-10-12 17:40:22,436 INFO L158 Benchmark]: Boogie Preprocessor took 21.63ms. Allocated memory is still 182.5MB. Free memory was 132.3MB in the beginning and 131.3MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-10-12 17:40:22,437 INFO L158 Benchmark]: RCFGBuilder took 233.72ms. Allocated memory is still 182.5MB. Free memory was 131.3MB in the beginning and 121.3MB in the end (delta: 10.0MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2023-10-12 17:40:22,437 INFO L158 Benchmark]: BuchiAutomizer took 3242.73ms. Allocated memory was 182.5MB in the beginning and 288.4MB in the end (delta: 105.9MB). Free memory was 121.1MB in the beginning and 219.7MB in the end (delta: -98.5MB). Peak memory consumption was 8.0MB. Max. memory is 8.0GB. [2023-10-12 17:40:22,439 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 0.28ms. Allocated memory is still 182.5MB. Free memory was 135.2MB in the beginning and 135.1MB in the end (delta: 146.9kB). There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 24.16ms. Allocated memory is still 182.5MB. Free memory was 133.9MB in the beginning and 132.3MB in the end (delta: 1.5MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 21.63ms. Allocated memory is still 182.5MB. Free memory was 132.3MB in the beginning and 131.3MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 233.72ms. Allocated memory is still 182.5MB. Free memory was 131.3MB in the beginning and 121.3MB in the end (delta: 10.0MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * BuchiAutomizer took 3242.73ms. Allocated memory was 182.5MB in the beginning and 288.4MB in the end (delta: 105.9MB). Free memory was 121.1MB in the beginning and 219.7MB in the end (delta: -98.5MB). Peak memory consumption was 8.0MB. 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 3 terminating modules (0 trivial, 3 deterministic, 0 nondeterministic). One deterministic module has affine ranking function N + -1 * i and consists of 4 locations. One deterministic module has affine ranking function M + -1 * j and consists of 4 locations. One deterministic module has affine ranking function -1 * k + N and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.1s and 4 iterations. TraceHistogramMax:0. Analysis of lassos took 2.2s. Construction of modules took 0.1s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 0. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [3, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 240 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 237 mSDsluCounter, 162 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 48 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 204 IncrementalHoareTripleChecker+Invalid, 210 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 114 mSDtfsCounter, 204 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso3 LassoPreprocessingBenchmarks: Lassos: inital62 mio100 ax100 hnf100 lsp104 ukn59 mio100 lsp55 div100 bol100 ite100 ukn100 eq161 hnf94 smp100 dnf150 smp65 tf100 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 47ms VariablesStem: 1 VariablesLoop: 3 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 4 MotzkinApplications: 16 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.3s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.3s, 33 PlacesBefore, 22 PlacesAfterwards, 26 TransitionsBefore, 15 TransitionsAfterwards, 144 CoEnabledTransitionPairs, 2 FixpointIterations, 6 TrivialSequentialCompositions, 6 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 12 TotalNumberOfCompositions, 106 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 106, independent: 106, independent conditional: 0, independent unconditional: 106, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 82, independent: 82, independent conditional: 0, independent unconditional: 82, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 82, independent: 82, independent conditional: 0, independent unconditional: 82, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 106, independent: 24, independent conditional: 0, independent unconditional: 24, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 82, unknown conditional: 0, unknown unconditional: 82] , Statistics on independence cache: Total cache size (in pairs): 18, Positive cache size: 18, Positive conditional cache size: 0, Positive unconditional cache size: 18, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 RESULT: Ultimate proved your program to be correct! [2023-10-12 17:40:22,452 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 17:40:22,653 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...