/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/dot-product-array.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.fs.rabin-petrinet-4c29625-m [2023-10-12 17:39:51,819 INFO L172 SettingsManager]: Resetting all preferences to default values... [2023-10-12 17:39:51,854 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 17:39:51,876 INFO L114 SettingsManager]: Preferences different from defaults after loading the file: [2023-10-12 17:39:51,876 INFO L135 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-10-12 17:39:51,876 INFO L137 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-10-12 17:39:51,877 INFO L135 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-10-12 17:39:51,877 INFO L137 SettingsManager]: * Create parallel compositions if possible=false [2023-10-12 17:39:51,878 INFO L137 SettingsManager]: * Use SBE=true [2023-10-12 17:39:51,878 INFO L135 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-10-12 17:39:51,878 INFO L137 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-10-12 17:39:51,878 INFO L137 SettingsManager]: * Use old map elimination=false [2023-10-12 17:39:51,879 INFO L137 SettingsManager]: * Use external solver (rank synthesis)=false [2023-10-12 17:39:51,879 INFO L137 SettingsManager]: * Use only trivial implications for array writes=true [2023-10-12 17:39:51,879 INFO L137 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-10-12 17:39:51,879 INFO L135 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-10-12 17:39:51,880 INFO L137 SettingsManager]: * sizeof long=4 [2023-10-12 17:39:51,880 INFO L137 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-10-12 17:39:51,880 INFO L137 SettingsManager]: * Overapproximate operations on floating types=true [2023-10-12 17:39:51,880 INFO L137 SettingsManager]: * sizeof POINTER=4 [2023-10-12 17:39:51,881 INFO L137 SettingsManager]: * Check division by zero=IGNORE [2023-10-12 17:39:51,884 INFO L137 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-10-12 17:39:51,884 INFO L137 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-10-12 17:39:51,884 INFO L137 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-10-12 17:39:51,884 INFO L137 SettingsManager]: * sizeof long double=12 [2023-10-12 17:39:51,884 INFO L137 SettingsManager]: * Check if freed pointer was valid=false [2023-10-12 17:39:51,885 INFO L137 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-10-12 17:39:51,885 INFO L137 SettingsManager]: * Use constant arrays=true [2023-10-12 17:39:51,885 INFO L137 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-10-12 17:39:51,885 INFO L135 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-10-12 17:39:51,885 INFO L137 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-10-12 17:39:51,886 INFO L135 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-10-12 17:39:51,886 INFO L137 SettingsManager]: * Trace refinement strategy=CAMEL [2023-10-12 17:39:51,887 INFO L135 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-10-12 17:39:51,887 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: Automaton type for concurrent programs -> RABIN_PETRI_NET [2023-10-12 17:39:52,094 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-10-12 17:39:52,111 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-10-12 17:39:52,113 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-10-12 17:39:52,114 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2023-10-12 17:39:52,115 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2023-10-12 17:39:52,116 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/dot-product-array.wvr.bpl [2023-10-12 17:39:52,117 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/dot-product-array.wvr.bpl' [2023-10-12 17:39:52,144 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-10-12 17:39:52,145 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2023-10-12 17:39:52,146 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-10-12 17:39:52,146 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-10-12 17:39:52,146 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-10-12 17:39:52,155 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "dot-product-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:39:52" (1/1) ... [2023-10-12 17:39:52,163 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "dot-product-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:39:52" (1/1) ... [2023-10-12 17:39:52,167 INFO L138 Inliner]: procedures = 4, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2023-10-12 17:39:52,169 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-10-12 17:39:52,170 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-10-12 17:39:52,171 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-10-12 17:39:52,171 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-10-12 17:39:52,177 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "dot-product-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:39:52" (1/1) ... [2023-10-12 17:39:52,177 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "dot-product-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:39:52" (1/1) ... [2023-10-12 17:39:52,178 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "dot-product-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:39:52" (1/1) ... [2023-10-12 17:39:52,179 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "dot-product-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:39:52" (1/1) ... [2023-10-12 17:39:52,182 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "dot-product-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:39:52" (1/1) ... [2023-10-12 17:39:52,185 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "dot-product-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:39:52" (1/1) ... [2023-10-12 17:39:52,186 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "dot-product-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:39:52" (1/1) ... [2023-10-12 17:39:52,186 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "dot-product-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:39:52" (1/1) ... [2023-10-12 17:39:52,189 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-10-12 17:39:52,190 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-10-12 17:39:52,190 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-10-12 17:39:52,190 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-10-12 17:39:52,191 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "dot-product-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:39:52" (1/1) ... [2023-10-12 17:39:52,195 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:39:52,201 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:39:52,230 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 17:39:52,248 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 17:39:52,259 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2023-10-12 17:39:52,259 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-10-12 17:39:52,260 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-10-12 17:39:52,260 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2023-10-12 17:39:52,260 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-10-12 17:39:52,260 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-10-12 17:39:52,260 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2023-10-12 17:39:52,260 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-10-12 17:39:52,260 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-10-12 17:39:52,261 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2023-10-12 17:39:52,261 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-10-12 17:39:52,261 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-10-12 17:39:52,262 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 17:39:52,302 INFO L236 CfgBuilder]: Building ICFG [2023-10-12 17:39:52,304 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-10-12 17:39:52,406 INFO L277 CfgBuilder]: Performing block encoding [2023-10-12 17:39:52,422 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-10-12 17:39:52,422 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-10-12 17:39:52,427 INFO L201 PluginConnector]: Adding new model dot-product-array.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:39:52 BoogieIcfgContainer [2023-10-12 17:39:52,428 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-10-12 17:39:52,428 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-10-12 17:39:52,429 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-10-12 17:39:52,431 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-10-12 17:39:52,447 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-10-12 17:39:52,456 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "dot-product-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:39:52" (1/2) ... [2023-10-12 17:39:52,458 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3a5f59a9 and model type dot-product-array.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 12.10 05:39:52, skipping insertion in model container [2023-10-12 17:39:52,458 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-10-12 17:39:52,458 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "dot-product-array.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:39:52" (2/2) ... [2023-10-12 17:39:52,459 INFO L332 chiAutomizerObserver]: Analyzing ICFG dot-product-array.wvr.bpl [2023-10-12 17:39:52,498 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-10-12 17:39:52,515 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 36 places, 32 transitions, 88 flow [2023-10-12 17:39:52,530 INFO L124 PetriNetUnfolderBase]: 3/26 cut-off events. [2023-10-12 17:39:52,531 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-10-12 17:39:52,533 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 17:39:52,534 INFO L82 GeneralOperation]: Start removeDead. Operand has 36 places, 32 transitions, 88 flow [2023-10-12 17:39:52,536 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 33 places, 26 transitions, 70 flow [2023-10-12 17:39:52,538 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-10-12 17:39:52,548 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 33 places, 26 transitions, 70 flow [2023-10-12 17:39:52,549 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 33 places, 26 transitions, 70 flow [2023-10-12 17:39:52,550 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 33 places, 26 transitions, 70 flow [2023-10-12 17:39:52,555 INFO L124 PetriNetUnfolderBase]: 3/26 cut-off events. [2023-10-12 17:39:52,555 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-10-12 17:39:52,555 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 17:39:52,556 INFO L119 LiptonReduction]: Number of co-enabled transitions 144 [2023-10-12 17:39:52,737 INFO L134 LiptonReduction]: Checked pairs total: 96 [2023-10-12 17:39:52,737 INFO L136 LiptonReduction]: Total number of compositions: 12 [2023-10-12 17:39:52,746 INFO L305 stractBuchiCegarLoop]: Interprodecural is true [2023-10-12 17:39:52,746 INFO L306 stractBuchiCegarLoop]: Hoare is false [2023-10-12 17:39:52,746 INFO L307 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-10-12 17:39:52,746 INFO L308 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-10-12 17:39:52,746 INFO L309 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-10-12 17:39:52,746 INFO L310 stractBuchiCegarLoop]: Difference is false [2023-10-12 17:39:52,746 INFO L311 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-10-12 17:39:52,747 INFO L315 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == RabinPetriNetCegarLoop ======== [2023-10-12 17:39:52,747 INFO L67 RabinIsEmpty]: Start rabinIsEmpty. Operand has 22 places, 15 transitions, 48 flow [2023-10-12 17:39:52,749 ERROR L47 etriNetUnfolderRabin]: [1:1A:[102] $Ultimate##0-->L60: Formula: (and (= v_i_19 v_res1_19) (= v_M_14 v_k_19) (< v_M_14 v_N_16) (= v_i_19 0) (<= 0 v_M_14) (= v_i_19 v_j_19) (= v_i_19 v_res2_29)) InVars {N=v_N_16, M=v_M_14, k=v_k_19, res1=v_res1_19, j=v_j_19, i=v_i_19, res2=v_res2_29} OutVars{N=v_N_16, M=v_M_14, k=v_k_19, res1=v_res1_19, j=v_j_19, i=v_i_19, res2=v_res2_29} AuxVars[] AssignedVars[][14], 2:2A:[81] L60-->L24-1: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0][5]][3:3A:[97] L24-1-->L24-1: Formula: (and (= v_i_15 (+ v_i_16 1)) (= (+ (select (select v_mult_14 (select v_A_14 v_i_16)) (select v_B_14 v_i_16)) v_res1_12) v_res1_11) (< v_i_16 v_N_12)) InVars {A=v_A_14, N=v_N_12, res1=v_res1_12, mult=v_mult_14, i=v_i_16, B=v_B_14} OutVars{A=v_A_14, N=v_N_12, res1=v_res1_11, mult=v_mult_14, i=v_i_15, B=v_B_14} AuxVars[] AssignedVars[res1, i][9]] [2023-10-12 17:39:52,750 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-10-12 17:39:52,750 INFO L124 PetriNetUnfolderBase]: 0/2 cut-off events. [2023-10-12 17:39:52,751 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-10-12 17:39:52,751 INFO L72 RabinIsEmpty]: Finished rabinIsEmpty language is not empty [2023-10-12 17:39:52,752 INFO L337 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-10-12 17:39:52,753 INFO L67 RabinIsEmpty]: Start rabinIsEmpty. Operand has 22 places, 15 transitions, 48 flow [2023-10-12 17:39:52,753 ERROR L47 etriNetUnfolderRabin]: [1:1A:[102] $Ultimate##0-->L60: Formula: (and (= v_i_19 v_res1_19) (= v_M_14 v_k_19) (< v_M_14 v_N_16) (= v_i_19 0) (<= 0 v_M_14) (= v_i_19 v_j_19) (= v_i_19 v_res2_29)) InVars {N=v_N_16, M=v_M_14, k=v_k_19, res1=v_res1_19, j=v_j_19, i=v_i_19, res2=v_res2_29} OutVars{N=v_N_16, M=v_M_14, k=v_k_19, res1=v_res1_19, j=v_j_19, i=v_i_19, res2=v_res2_29} AuxVars[] AssignedVars[][14], 2:2A:[81] L60-->L24-1: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0][5]][3:3A:[97] L24-1-->L24-1: Formula: (and (= v_i_15 (+ v_i_16 1)) (= (+ (select (select v_mult_14 (select v_A_14 v_i_16)) (select v_B_14 v_i_16)) v_res1_12) v_res1_11) (< v_i_16 v_N_12)) InVars {A=v_A_14, N=v_N_12, res1=v_res1_12, mult=v_mult_14, i=v_i_16, B=v_B_14} OutVars{A=v_A_14, N=v_N_12, res1=v_res1_11, mult=v_mult_14, i=v_i_15, B=v_B_14} AuxVars[] AssignedVars[res1, i][9]] [2023-10-12 17:39:52,754 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-10-12 17:39:52,754 INFO L124 PetriNetUnfolderBase]: 0/2 cut-off events. [2023-10-12 17:39:52,754 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-10-12 17:39:52,754 INFO L72 RabinIsEmpty]: Finished rabinIsEmpty language is not empty [2023-10-12 17:39:52,757 INFO L748 eck$LassoCheckResult]: Stem: 40#[$Ultimate##0]true [102] $Ultimate##0-->L60: Formula: (and (= v_i_19 v_res1_19) (= v_M_14 v_k_19) (< v_M_14 v_N_16) (= v_i_19 0) (<= 0 v_M_14) (= v_i_19 v_j_19) (= v_i_19 v_res2_29)) InVars {N=v_N_16, M=v_M_14, k=v_k_19, res1=v_res1_19, j=v_j_19, i=v_i_19, res2=v_res2_29} OutVars{N=v_N_16, M=v_M_14, k=v_k_19, res1=v_res1_19, j=v_j_19, i=v_i_19, res2=v_res2_29} AuxVars[] AssignedVars[] 42#[L60]true [81] L60-->L24-1: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0] 44#[L24-1, L60-1]true [2023-10-12 17:39:52,757 INFO L750 eck$LassoCheckResult]: Loop: 44#[L24-1, L60-1]true [97] L24-1-->L24-1: Formula: (and (= v_i_15 (+ v_i_16 1)) (= (+ (select (select v_mult_14 (select v_A_14 v_i_16)) (select v_B_14 v_i_16)) v_res1_12) v_res1_11) (< v_i_16 v_N_12)) InVars {A=v_A_14, N=v_N_12, res1=v_res1_12, mult=v_mult_14, i=v_i_16, B=v_B_14} OutVars{A=v_A_14, N=v_N_12, res1=v_res1_11, mult=v_mult_14, i=v_i_15, B=v_B_14} AuxVars[] AssignedVars[res1, i] 44#[L24-1, L60-1]true [2023-10-12 17:39:52,760 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:39:52,760 INFO L85 PathProgramCache]: Analyzing trace with hash 4204, now seen corresponding path program 1 times [2023-10-12 17:39:52,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:39:52,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841600584] [2023-10-12 17:39:52,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:39:52,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:39:52,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:39:52,838 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:39:52,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:39:52,872 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:39:52,875 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:39:52,876 INFO L85 PathProgramCache]: Analyzing trace with hash 128, now seen corresponding path program 1 times [2023-10-12 17:39:52,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:39:52,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144767615] [2023-10-12 17:39:52,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:39:52,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:39:52,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:39:52,905 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:39:52,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:39:52,915 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:39:52,917 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:39:52,917 INFO L85 PathProgramCache]: Analyzing trace with hash 130421, now seen corresponding path program 1 times [2023-10-12 17:39:52,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:39:52,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685500823] [2023-10-12 17:39:52,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:39:52,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:39:52,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:39:52,955 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:39:52,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:39:52,973 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:39:53,097 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:39:53,098 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:39:53,098 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:39:53,098 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:39:53,098 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-10-12 17:39:53,098 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:39:53,098 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:39:53,098 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:39:53,098 INFO L133 ssoRankerPreferences]: Filename of dumped script: dot-product-array.wvr.bpl_BEv2_Iteration1_Lasso [2023-10-12 17:39:53,098 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:39:53,098 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:39:53,109 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 17:39:53,116 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 17:39:53,136 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 17:39:53,139 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 17:39:53,204 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:39:53,207 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-10-12 17:39:53,208 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:39:53,208 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:39:53,233 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 17:39:53,237 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 17:39:53,243 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:39:53,243 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:39:53,244 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:39:53,244 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:39:53,247 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:39:53,247 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:39:53,251 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 17:39:53,260 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:39:53,263 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2023-10-12 17:39:53,264 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:39:53,264 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:39:53,265 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 17:39:53,267 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 17:39:53,269 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 17:39:53,275 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:39:53,275 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-10-12 17:39:53,275 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:39:53,275 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:39:53,276 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:39:53,276 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-10-12 17:39:53,276 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-10-12 17:39:53,289 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:39:53,292 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 17:39:53,292 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:39:53,292 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:39:53,295 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 17:39:53,296 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 17:39:53,297 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 17:39:53,303 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:39:53,303 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:39:53,303 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:39:53,303 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:39:53,307 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:39:53,307 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:39:53,313 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-10-12 17:39:53,342 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2023-10-12 17:39:53,342 INFO L444 ModelExtractionUtils]: 8 out of 16 variables were initially zero. Simplification set additionally 5 variables to zero. [2023-10-12 17:39:53,344 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:39:53,344 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:39:53,345 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 17:39:53,354 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 17:39:53,355 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-10-12 17:39:53,362 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2023-10-12 17:39:53,362 INFO L513 LassoAnalysis]: Proved termination. [2023-10-12 17:39:53,362 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(i, N) = -1*i + 1*N Supporting invariants [] [2023-10-12 17:39:53,366 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 17:39:53,368 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-10-12 17:39:53,386 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:39:53,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:39:53,399 INFO L262 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 2 conjunts are in the unsatisfiable core [2023-10-12 17:39:53,400 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:39:53,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:39:53,417 WARN L260 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2023-10-12 17:39:53,417 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:39:53,417 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 17:39:53,453 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 17:39:53,534 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 17:39:53,540 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 17:39:53,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 176 transitions. [2023-10-12 17:39:53,547 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 176 transitions. Stem has 2 letters. Loop has 1 letters. [2023-10-12 17:39:53,547 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:39:53,547 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 176 transitions. Stem has 3 letters. Loop has 1 letters. [2023-10-12 17:39:53,548 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:39:53,549 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 176 transitions. Stem has 2 letters. Loop has 2 letters. [2023-10-12 17:39:53,549 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:39:53,549 INFO L430 stractBuchiCegarLoop]: Abstraction has has 26 places, 60 transitions, 312 flow [2023-10-12 17:39:53,549 INFO L337 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-10-12 17:39:53,549 INFO L67 RabinIsEmpty]: Start rabinIsEmpty. Operand has 26 places, 60 transitions, 312 flow [2023-10-12 17:39:53,550 ERROR L47 etriNetUnfolderRabin]: [1:1A:[102] $Ultimate##0-->L60: Formula: (and (= v_i_19 v_res1_19) (= v_M_14 v_k_19) (< v_M_14 v_N_16) (= v_i_19 0) (<= 0 v_M_14) (= v_i_19 v_j_19) (= v_i_19 v_res2_29)) InVars {N=v_N_16, M=v_M_14, k=v_k_19, res1=v_res1_19, j=v_j_19, i=v_i_19, res2=v_res2_29} OutVars{N=v_N_16, M=v_M_14, k=v_k_19, res1=v_res1_19, j=v_j_19, i=v_i_19, res2=v_res2_29} AuxVars[] AssignedVars[][56], 2:2A:[81] L60-->L24-1: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0][20], 4:3A:[84] L60-1-->L35-1: Formula: (and (= 2 v_thread2Thread1of1ForFork1_thidvar1_2) (= 2 v_thread2Thread1of1ForFork1_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_2, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_thidvar0, thread2Thread1of1ForFork1_thidvar1][10]][5:4A:[95] L35-1-->L35-1: Formula: (and (= (+ v_res2_22 (select (select v_mult_12 (select v_A_12 v_j_16)) (select v_B_12 v_j_16))) v_res2_21) (= v_j_15 (+ v_j_16 1)) (< v_j_16 v_M_10)) InVars {A=v_A_12, M=v_M_10, j=v_j_16, mult=v_mult_12, res2=v_res2_22, B=v_B_12} OutVars{A=v_A_12, M=v_M_10, j=v_j_15, mult=v_mult_12, res2=v_res2_21, B=v_B_12} AuxVars[] AssignedVars[j, res2][47]] [2023-10-12 17:39:53,551 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-10-12 17:39:53,551 INFO L124 PetriNetUnfolderBase]: 1/4 cut-off events. [2023-10-12 17:39:53,551 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-10-12 17:39:53,551 INFO L72 RabinIsEmpty]: Finished rabinIsEmpty language is not empty [2023-10-12 17:39:53,551 INFO L748 eck$LassoCheckResult]: Stem: 40#[$Ultimate##0]true [102] $Ultimate##0-->L60: Formula: (and (= v_i_19 v_res1_19) (= v_M_14 v_k_19) (< v_M_14 v_N_16) (= v_i_19 0) (<= 0 v_M_14) (= v_i_19 v_j_19) (= v_i_19 v_res2_29)) InVars {N=v_N_16, M=v_M_14, k=v_k_19, res1=v_res1_19, j=v_j_19, i=v_i_19, res2=v_res2_29} OutVars{N=v_N_16, M=v_M_14, k=v_k_19, res1=v_res1_19, j=v_j_19, i=v_i_19, res2=v_res2_29} AuxVars[] AssignedVars[] 42#[L60]true [81] L60-->L24-1: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0] 44#[L24-1, L60-1]true [84] L60-1-->L35-1: Formula: (and (= 2 v_thread2Thread1of1ForFork1_thidvar1_2) (= 2 v_thread2Thread1of1ForFork1_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_2, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_thidvar0, thread2Thread1of1ForFork1_thidvar1] 79#[L61, L24-1, L35-1]true [2023-10-12 17:39:53,551 INFO L750 eck$LassoCheckResult]: Loop: 79#[L61, L24-1, L35-1]true [95] L35-1-->L35-1: Formula: (and (= (+ v_res2_22 (select (select v_mult_12 (select v_A_12 v_j_16)) (select v_B_12 v_j_16))) v_res2_21) (= v_j_15 (+ v_j_16 1)) (< v_j_16 v_M_10)) InVars {A=v_A_12, M=v_M_10, j=v_j_16, mult=v_mult_12, res2=v_res2_22, B=v_B_12} OutVars{A=v_A_12, M=v_M_10, j=v_j_15, mult=v_mult_12, res2=v_res2_21, B=v_B_12} AuxVars[] AssignedVars[j, res2] 79#[L61, L24-1, L35-1]true [2023-10-12 17:39:53,552 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:39:53,552 INFO L85 PathProgramCache]: Analyzing trace with hash 130408, now seen corresponding path program 1 times [2023-10-12 17:39:53,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:39:53,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650784548] [2023-10-12 17:39:53,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:39:53,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:39:53,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:39:53,562 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:39:53,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:39:53,574 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:39:53,574 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:39:53,574 INFO L85 PathProgramCache]: Analyzing trace with hash 126, now seen corresponding path program 1 times [2023-10-12 17:39:53,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:39:53,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945488699] [2023-10-12 17:39:53,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:39:53,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:39:53,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:39:53,577 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:39:53,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:39:53,580 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:39:53,580 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:39:53,581 INFO L85 PathProgramCache]: Analyzing trace with hash 4042743, now seen corresponding path program 1 times [2023-10-12 17:39:53,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:39:53,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225887723] [2023-10-12 17:39:53,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:39:53,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:39:53,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:39:53,598 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:39:53,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:39:53,604 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:39:53,674 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:39:53,674 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:39:53,674 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:39:53,674 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:39:53,675 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-10-12 17:39:53,675 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:39:53,675 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:39:53,675 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:39:53,675 INFO L133 ssoRankerPreferences]: Filename of dumped script: dot-product-array.wvr.bpl_BEv2_Iteration2_Lasso [2023-10-12 17:39:53,675 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:39:53,675 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:39:53,677 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 17:39:53,680 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 17:39:53,682 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 17:39:53,701 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 17:39:53,703 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 17:39:53,707 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 17:39:53,784 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:39:53,784 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-10-12 17:39:53,784 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:39:53,784 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:39:53,785 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 17:39:53,807 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 17:39:53,815 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:39:53,815 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:39:53,815 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:39:53,815 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:39:53,818 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:39:53,818 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:39:53,825 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 17:39:53,834 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:39:53,841 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2023-10-12 17:39:53,841 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:39:53,841 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:39:53,885 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 17:39:53,888 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 17:39:53,891 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 17:39:53,897 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:39:53,898 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:39:53,898 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:39:53,898 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:39:53,907 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:39:53,907 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:39:53,916 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:39:53,935 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2023-10-12 17:39:53,936 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:39:53,936 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:39:53,949 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 17:39:53,952 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 17:39:53,954 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 17:39:53,960 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:39:53,960 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-10-12 17:39:53,960 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:39:53,960 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:39:53,960 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:39:53,961 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-10-12 17:39:53,961 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-10-12 17:39:53,985 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:39:53,989 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 17:39:53,990 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:39:53,990 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:39:54,001 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 17:39:54,031 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 17:39:54,032 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 17:39:54,038 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:39:54,038 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:39:54,038 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:39:54,038 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:39:54,042 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:39:54,042 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:39:54,065 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:39:54,085 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2023-10-12 17:39:54,085 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:39:54,085 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:39:54,101 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 17:39:54,103 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 17:39:54,105 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-10-12 17:39:54,111 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:39:54,111 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:39:54,112 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:39:54,112 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:39:54,115 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:39:54,115 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:39:54,129 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-10-12 17:39:54,137 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2023-10-12 17:39:54,137 INFO L444 ModelExtractionUtils]: 9 out of 16 variables were initially zero. Simplification set additionally 4 variables to zero. [2023-10-12 17:39:54,138 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:39:54,138 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:39:54,153 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 17:39:54,154 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 17:39:54,168 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-10-12 17:39:54,174 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2023-10-12 17:39:54,175 INFO L513 LassoAnalysis]: Proved termination. [2023-10-12 17:39:54,175 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(M, j) = 1*M - 1*j Supporting invariants [] [2023-10-12 17:39:54,178 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2023-10-12 17:39:54,179 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-10-12 17:39:54,203 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:39:54,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:39:54,211 INFO L262 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 2 conjunts are in the unsatisfiable core [2023-10-12 17:39:54,212 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:39:54,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:39:54,239 WARN L260 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2023-10-12 17:39:54,239 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:39:54,239 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 17:39:54,240 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 17:39:54,334 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 17:39:54,334 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 17:39:54,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 176 transitions. [2023-10-12 17:39:54,335 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 176 transitions. Stem has 3 letters. Loop has 1 letters. [2023-10-12 17:39:54,335 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:39:54,336 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 176 transitions. Stem has 4 letters. Loop has 1 letters. [2023-10-12 17:39:54,336 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:39:54,336 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 176 transitions. Stem has 3 letters. Loop has 2 letters. [2023-10-12 17:39:54,336 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:39:54,336 INFO L430 stractBuchiCegarLoop]: Abstraction has has 30 places, 240 transitions, 1728 flow [2023-10-12 17:39:54,336 INFO L337 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-10-12 17:39:54,336 INFO L67 RabinIsEmpty]: Start rabinIsEmpty. Operand has 30 places, 240 transitions, 1728 flow [2023-10-12 17:39:54,338 ERROR L47 etriNetUnfolderRabin]: [1:1A:[102] $Ultimate##0-->L60: Formula: (and (= v_i_19 v_res1_19) (= v_M_14 v_k_19) (< v_M_14 v_N_16) (= v_i_19 0) (<= 0 v_M_14) (= v_i_19 v_j_19) (= v_i_19 v_res2_29)) InVars {N=v_N_16, M=v_M_14, k=v_k_19, res1=v_res1_19, j=v_j_19, i=v_i_19, res2=v_res2_29} OutVars{N=v_N_16, M=v_M_14, k=v_k_19, res1=v_res1_19, j=v_j_19, i=v_i_19, res2=v_res2_29} AuxVars[] AssignedVars[][225], 2:2A:[81] L60-->L24-1: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0][81], 4:3A:[84] L60-1-->L35-1: Formula: (and (= 2 v_thread2Thread1of1ForFork1_thidvar1_2) (= 2 v_thread2Thread1of1ForFork1_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_2, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_thidvar0, thread2Thread1of1ForFork1_thidvar1][41], 7:4A:[87] L61-->L46-1: Formula: (and (= 3 v_thread3Thread1of1ForFork2_thidvar0_2) (= 3 v_thread3Thread1of1ForFork2_thidvar1_2) (= 3 v_thread3Thread1of1ForFork2_thidvar2_2)) InVars {} OutVars{thread3Thread1of1ForFork2_thidvar2=v_thread3Thread1of1ForFork2_thidvar2_2, thread3Thread1of1ForFork2_thidvar1=v_thread3Thread1of1ForFork2_thidvar1_2, thread3Thread1of1ForFork2_thidvar0=v_thread3Thread1of1ForFork2_thidvar0_2} AuxVars[] AssignedVars[thread3Thread1of1ForFork2_thidvar2, thread3Thread1of1ForFork2_thidvar1, thread3Thread1of1ForFork2_thidvar0][15]][8:5A:[92] L46-1-->L46-1: Formula: (and (= v_k_13 (+ v_k_14 1)) (= v_res2_15 (+ v_res2_16 (select (select v_mult_10 (select v_A_10 v_k_14)) (select v_B_10 v_k_14)))) (< v_k_14 v_N_8)) InVars {A=v_A_10, N=v_N_8, k=v_k_14, mult=v_mult_10, res2=v_res2_16, B=v_B_10} OutVars{A=v_A_10, N=v_N_8, k=v_k_13, mult=v_mult_10, res2=v_res2_15, B=v_B_10} AuxVars[] AssignedVars[k, res2][126]] [2023-10-12 17:39:54,338 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-10-12 17:39:54,339 INFO L124 PetriNetUnfolderBase]: 2/7 cut-off events. [2023-10-12 17:39:54,339 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-10-12 17:39:54,339 INFO L72 RabinIsEmpty]: Finished rabinIsEmpty language is not empty [2023-10-12 17:39:54,339 INFO L748 eck$LassoCheckResult]: Stem: 40#[$Ultimate##0]true [102] $Ultimate##0-->L60: Formula: (and (= v_i_19 v_res1_19) (= v_M_14 v_k_19) (< v_M_14 v_N_16) (= v_i_19 0) (<= 0 v_M_14) (= v_i_19 v_j_19) (= v_i_19 v_res2_29)) InVars {N=v_N_16, M=v_M_14, k=v_k_19, res1=v_res1_19, j=v_j_19, i=v_i_19, res2=v_res2_29} OutVars{N=v_N_16, M=v_M_14, k=v_k_19, res1=v_res1_19, j=v_j_19, i=v_i_19, res2=v_res2_29} AuxVars[] AssignedVars[] 42#[L60]true [81] L60-->L24-1: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0] 44#[L24-1, L60-1]true [84] L60-1-->L35-1: Formula: (and (= 2 v_thread2Thread1of1ForFork1_thidvar1_2) (= 2 v_thread2Thread1of1ForFork1_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_2, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_thidvar0, thread2Thread1of1ForFork1_thidvar1] 79#[L61, L24-1, L35-1]true [87] L61-->L46-1: Formula: (and (= 3 v_thread3Thread1of1ForFork2_thidvar0_2) (= 3 v_thread3Thread1of1ForFork2_thidvar1_2) (= 3 v_thread3Thread1of1ForFork2_thidvar2_2)) InVars {} OutVars{thread3Thread1of1ForFork2_thidvar2=v_thread3Thread1of1ForFork2_thidvar2_2, thread3Thread1of1ForFork2_thidvar1=v_thread3Thread1of1ForFork2_thidvar1_2, thread3Thread1of1ForFork2_thidvar0=v_thread3Thread1of1ForFork2_thidvar0_2} AuxVars[] AssignedVars[thread3Thread1of1ForFork2_thidvar2, thread3Thread1of1ForFork2_thidvar1, thread3Thread1of1ForFork2_thidvar0] 113#[L46-1, L62, L24-1, L35-1]true [2023-10-12 17:39:54,339 INFO L750 eck$LassoCheckResult]: Loop: 113#[L46-1, L62, L24-1, L35-1]true [92] L46-1-->L46-1: Formula: (and (= v_k_13 (+ v_k_14 1)) (= v_res2_15 (+ v_res2_16 (select (select v_mult_10 (select v_A_10 v_k_14)) (select v_B_10 v_k_14)))) (< v_k_14 v_N_8)) InVars {A=v_A_10, N=v_N_8, k=v_k_14, mult=v_mult_10, res2=v_res2_16, B=v_B_10} OutVars{A=v_A_10, N=v_N_8, k=v_k_13, mult=v_mult_10, res2=v_res2_15, B=v_B_10} AuxVars[] AssignedVars[k, res2] 113#[L46-1, L62, L24-1, L35-1]true [2023-10-12 17:39:54,339 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:39:54,339 INFO L85 PathProgramCache]: Analyzing trace with hash 4042735, now seen corresponding path program 1 times [2023-10-12 17:39:54,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:39:54,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950938873] [2023-10-12 17:39:54,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:39:54,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:39:54,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:39:54,372 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:39:54,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:39:54,376 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:39:54,376 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:39:54,376 INFO L85 PathProgramCache]: Analyzing trace with hash 123, now seen corresponding path program 1 times [2023-10-12 17:39:54,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:39:54,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868869126] [2023-10-12 17:39:54,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:39:54,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:39:54,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:39:54,379 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:39:54,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:39:54,382 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:39:54,382 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:39:54,382 INFO L85 PathProgramCache]: Analyzing trace with hash 125324877, now seen corresponding path program 1 times [2023-10-12 17:39:54,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:39:54,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503960480] [2023-10-12 17:39:54,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:39:54,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:39:54,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:39:54,387 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:39:54,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:39:54,393 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2023-10-12 17:39:54,400 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:39:54,421 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 17:39:54,474 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:39:54,474 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:39:54,474 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:39:54,474 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:39:54,474 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-10-12 17:39:54,475 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:39:54,475 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:39:54,475 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:39:54,475 INFO L133 ssoRankerPreferences]: Filename of dumped script: dot-product-array.wvr.bpl_BEv2_Iteration3_Lasso [2023-10-12 17:39:54,475 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:39:54,475 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:39:54,476 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 17:39:54,478 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 17:39:54,480 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 17:39:54,482 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 17:39:54,510 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 17:39:54,512 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 17:39:54,514 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 17:39:54,516 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 17:39:54,518 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 17:39:54,520 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 17:39:54,614 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:39:54,615 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-10-12 17:39:54,615 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:39:54,615 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:39:54,616 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 17:39:54,618 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 17:39:54,620 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 17:39:54,627 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:39:54,627 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:39:54,627 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:39:54,627 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:39:54,629 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:39:54,629 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:39:54,635 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:39:54,640 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 17:39:54,641 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:39:54,641 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:39:54,642 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 17:39:54,645 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 17:39:54,646 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 17:39:54,653 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:39:54,654 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:39:54,654 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:39:54,654 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:39:54,655 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:39:54,655 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:39:54,670 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:39:54,675 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2023-10-12 17:39:54,676 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:39:54,676 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:39:54,677 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 17:39:54,705 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 17:39:54,706 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 17:39:54,711 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:39:54,712 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:39:54,712 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:39:54,712 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:39:54,713 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:39:54,713 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:39:54,731 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:39:54,749 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 17:39:54,749 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:39:54,750 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:39:54,765 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 17:39:54,767 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 17:39:54,769 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-10-12 17:39:54,774 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:39:54,775 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:39:54,775 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:39:54,775 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:39:54,777 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:39:54,777 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:39:54,796 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-10-12 17:39:54,810 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2023-10-12 17:39:54,810 INFO L444 ModelExtractionUtils]: 6 out of 13 variables were initially zero. Simplification set additionally 4 variables to zero. [2023-10-12 17:39:54,810 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:39:54,811 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:39:54,825 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 17:39:54,841 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 17:39:54,841 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-10-12 17:39:54,864 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2023-10-12 17:39:54,864 INFO L513 LassoAnalysis]: Proved termination. [2023-10-12 17:39:54,864 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(k, N) = -1*k + 1*N Supporting invariants [] [2023-10-12 17:39:54,869 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 17:39:54,870 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-10-12 17:39:54,880 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:39:54,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:39:54,885 INFO L262 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 2 conjunts are in the unsatisfiable core [2023-10-12 17:39:54,886 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:39:54,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:39:54,893 WARN L260 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2023-10-12 17:39:54,893 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:39:54,894 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 17:39:54,894 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 17:39:54,949 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 17:39:54,950 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 17:39:54,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 176 transitions. [2023-10-12 17:39:54,952 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 176 transitions. Stem has 4 letters. Loop has 1 letters. [2023-10-12 17:39:54,952 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:39:54,952 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 176 transitions. Stem has 5 letters. Loop has 1 letters. [2023-10-12 17:39:54,952 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:39:54,952 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 176 transitions. Stem has 4 letters. Loop has 2 letters. [2023-10-12 17:39:54,952 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:39:54,953 INFO L430 stractBuchiCegarLoop]: Abstraction has has 34 places, 960 transitions, 8832 flow [2023-10-12 17:39:54,953 INFO L337 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-10-12 17:39:54,953 INFO L67 RabinIsEmpty]: Start rabinIsEmpty. Operand has 34 places, 960 transitions, 8832 flow [2023-10-12 17:39:54,991 INFO L124 PetriNetUnfolderBase]: 90/133 cut-off events. [2023-10-12 17:39:54,991 INFO L125 PetriNetUnfolderBase]: For 32/32 co-relation queries the response was YES. [2023-10-12 17:39:54,991 INFO L72 RabinIsEmpty]: Finished rabinIsEmpty language is empty [2023-10-12 17:39:54,995 INFO L201 PluginConnector]: Adding new model dot-product-array.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 12.10 05:39:54 BoogieIcfgContainer [2023-10-12 17:39:54,995 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-10-12 17:39:54,999 INFO L158 Benchmark]: Toolchain (without parser) took 2850.82ms. Allocated memory was 196.1MB in the beginning and 317.7MB in the end (delta: 121.6MB). Free memory was 149.3MB in the beginning and 233.7MB in the end (delta: -84.4MB). Peak memory consumption was 36.7MB. Max. memory is 8.0GB. [2023-10-12 17:39:54,999 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.28ms. Allocated memory is still 196.1MB. Free memory is still 150.5MB. There was no memory consumed. Max. memory is 8.0GB. [2023-10-12 17:39:55,000 INFO L158 Benchmark]: Boogie Procedure Inliner took 22.79ms. Allocated memory is still 196.1MB. Free memory was 149.3MB in the beginning and 147.7MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-10-12 17:39:55,000 INFO L158 Benchmark]: Boogie Preprocessor took 19.27ms. Allocated memory is still 196.1MB. Free memory was 147.7MB in the beginning and 146.7MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-10-12 17:39:55,001 INFO L158 Benchmark]: RCFGBuilder took 237.83ms. Allocated memory is still 196.1MB. Free memory was 146.7MB in the beginning and 136.6MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2023-10-12 17:39:55,003 INFO L158 Benchmark]: BuchiAutomizer took 2566.97ms. Allocated memory was 196.1MB in the beginning and 317.7MB in the end (delta: 121.6MB). Free memory was 136.4MB in the beginning and 233.7MB in the end (delta: -97.3MB). Peak memory consumption was 24.1MB. Max. memory is 8.0GB. [2023-10-12 17:39:55,007 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 196.1MB. Free memory is still 150.5MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 22.79ms. Allocated memory is still 196.1MB. Free memory was 149.3MB in the beginning and 147.7MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 19.27ms. Allocated memory is still 196.1MB. Free memory was 147.7MB in the beginning and 146.7MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 237.83ms. Allocated memory is still 196.1MB. Free memory was 146.7MB in the beginning and 136.6MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * BuchiAutomizer took 2566.97ms. Allocated memory was 196.1MB in the beginning and 317.7MB in the end (delta: 121.6MB). Free memory was 136.4MB in the beginning and 233.7MB in the end (delta: -97.3MB). Peak memory consumption was 24.1MB. 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 2.4s and 4 iterations. TraceHistogramMax:0. Analysis of lassos took 1.7s. 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: inital54 mio100 ax100 hnf100 lsp69 ukn78 mio100 lsp72 div100 bol100 ite100 ukn100 eq159 hnf92 smp100 dnf100 smp100 tf100 neg100 sie113 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 52ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.2s - 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: 0.2s, 33 PlacesBefore, 22 PlacesAfterwards, 26 TransitionsBefore, 15 TransitionsAfterwards, 144 CoEnabledTransitionPairs, 2 FixpointIterations, 6 TrivialSequentialCompositions, 6 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 12 TotalNumberOfCompositions, 96 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 96, independent: 96, independent conditional: 0, independent unconditional: 96, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 78, independent: 78, independent conditional: 0, independent unconditional: 78, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 78, independent: 78, independent conditional: 0, independent unconditional: 78, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 96, independent: 18, independent conditional: 0, independent unconditional: 18, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 78, unknown conditional: 0, unknown unconditional: 78] , Statistics on independence cache: Total cache size (in pairs): 18, Positive cache size: 18, Positive conditional cache size: 0, Positive unconditional cache size: 18, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 RESULT: Ultimate proved your program to be correct! [2023-10-12 17:39:55,035 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 17:39:55,224 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...