/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/BuchiAutomizerBplInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Termination-32bit-Automizer_Default.epf --buchiautomizer.automaton.type.for.concurrent.programs BUCHI_AUTOMATON -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 17:13:53,470 INFO L172 SettingsManager]: Resetting all preferences to default values... [2023-10-12 17:13:53,519 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 17:13:53,546 INFO L114 SettingsManager]: Preferences different from defaults after loading the file: [2023-10-12 17:13:53,547 INFO L135 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-10-12 17:13:53,547 INFO L137 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-10-12 17:13:53,548 INFO L135 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-10-12 17:13:53,548 INFO L137 SettingsManager]: * Create parallel compositions if possible=false [2023-10-12 17:13:53,548 INFO L137 SettingsManager]: * Use SBE=true [2023-10-12 17:13:53,549 INFO L135 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-10-12 17:13:53,549 INFO L137 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-10-12 17:13:53,549 INFO L137 SettingsManager]: * Use old map elimination=false [2023-10-12 17:13:53,549 INFO L137 SettingsManager]: * Use external solver (rank synthesis)=false [2023-10-12 17:13:53,549 INFO L137 SettingsManager]: * Use only trivial implications for array writes=true [2023-10-12 17:13:53,550 INFO L137 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-10-12 17:13:53,550 INFO L135 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-10-12 17:13:53,550 INFO L137 SettingsManager]: * sizeof long=4 [2023-10-12 17:13:53,550 INFO L137 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-10-12 17:13:53,551 INFO L137 SettingsManager]: * Overapproximate operations on floating types=true [2023-10-12 17:13:53,551 INFO L137 SettingsManager]: * sizeof POINTER=4 [2023-10-12 17:13:53,551 INFO L137 SettingsManager]: * Check division by zero=IGNORE [2023-10-12 17:13:53,554 INFO L137 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-10-12 17:13:53,554 INFO L137 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-10-12 17:13:53,555 INFO L137 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-10-12 17:13:53,557 INFO L137 SettingsManager]: * sizeof long double=12 [2023-10-12 17:13:53,557 INFO L137 SettingsManager]: * Check if freed pointer was valid=false [2023-10-12 17:13:53,558 INFO L137 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-10-12 17:13:53,558 INFO L137 SettingsManager]: * Use constant arrays=true [2023-10-12 17:13:53,558 INFO L137 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-10-12 17:13:53,559 INFO L135 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-10-12 17:13:53,559 INFO L137 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-10-12 17:13:53,559 INFO L135 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-10-12 17:13:53,560 INFO L137 SettingsManager]: * Trace refinement strategy=CAMEL [2023-10-12 17:13:53,560 INFO L135 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-10-12 17:13:53,561 INFO L137 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: Automaton type for concurrent programs -> BUCHI_AUTOMATON [2023-10-12 17:13:53,714 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-10-12 17:13:53,733 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-10-12 17:13:53,735 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-10-12 17:13:53,736 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2023-10-12 17:13:53,737 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2023-10-12 17:13:53,738 INFO L431 ainManager$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 17:13:53,738 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 17:13:53,763 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-10-12 17:13:53,765 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2023-10-12 17:13:53,765 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-10-12 17:13:53,765 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-10-12 17:13:53,766 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-10-12 17:13:53,774 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 05:13:53" (1/1) ... [2023-10-12 17:13:53,779 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 05:13:53" (1/1) ... [2023-10-12 17:13:53,782 INFO L138 Inliner]: procedures = 4, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2023-10-12 17:13:53,783 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-10-12 17:13:53,785 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-10-12 17:13:53,786 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-10-12 17:13:53,786 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-10-12 17:13:53,791 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 05:13:53" (1/1) ... [2023-10-12 17:13:53,791 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 05:13:53" (1/1) ... [2023-10-12 17:13:53,792 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 05:13:53" (1/1) ... [2023-10-12 17:13:53,793 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 05:13:53" (1/1) ... [2023-10-12 17:13:53,796 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 05:13:53" (1/1) ... [2023-10-12 17:13:53,799 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 05:13:53" (1/1) ... [2023-10-12 17:13:53,800 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 05:13:53" (1/1) ... [2023-10-12 17:13:53,800 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 05:13:53" (1/1) ... [2023-10-12 17:13:53,804 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-10-12 17:13:53,805 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-10-12 17:13:53,805 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-10-12 17:13:53,805 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-10-12 17:13:53,806 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 05:13:53" (1/1) ... [2023-10-12 17:13:53,810 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:13:53,821 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:13:53,832 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 17:13:53,865 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 17:13:53,872 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2023-10-12 17:13:53,872 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-10-12 17:13:53,872 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-10-12 17:13:53,872 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2023-10-12 17:13:53,872 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-10-12 17:13:53,872 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-10-12 17:13:53,872 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2023-10-12 17:13:53,873 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-10-12 17:13:53,873 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-10-12 17:13:53,873 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2023-10-12 17:13:53,873 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-10-12 17:13:53,873 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-10-12 17:13:53,873 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 17:13:53,908 INFO L236 CfgBuilder]: Building ICFG [2023-10-12 17:13:53,909 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-10-12 17:13:54,000 INFO L277 CfgBuilder]: Performing block encoding [2023-10-12 17:13:54,011 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-10-12 17:13:54,011 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-10-12 17:13:54,013 INFO L201 PluginConnector]: Adding new model dot-product-array.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:13:54 BoogieIcfgContainer [2023-10-12 17:13:54,013 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-10-12 17:13:54,013 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-10-12 17:13:54,014 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-10-12 17:13:54,016 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-10-12 17:13:54,016 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-10-12 17:13:54,016 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 05:13:53" (1/2) ... [2023-10-12 17:13:54,017 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3ba19072 and model type dot-product-array.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 12.10 05:13:54, skipping insertion in model container [2023-10-12 17:13:54,017 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-10-12 17:13:54,018 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 05:13:54" (2/2) ... [2023-10-12 17:13:54,018 INFO L332 chiAutomizerObserver]: Analyzing ICFG dot-product-array.wvr.bpl [2023-10-12 17:13:54,062 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-10-12 17:13:54,084 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 36 places, 32 transitions, 88 flow [2023-10-12 17:13:54,100 INFO L124 PetriNetUnfolderBase]: 3/26 cut-off events. [2023-10-12 17:13:54,101 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-10-12 17:13:54,104 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 17:13:54,104 INFO L82 GeneralOperation]: Start removeDead. Operand has 36 places, 32 transitions, 88 flow [2023-10-12 17:13:54,107 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 33 places, 26 transitions, 70 flow [2023-10-12 17:13:54,110 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-10-12 17:13:54,120 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 33 places, 26 transitions, 70 flow [2023-10-12 17:13:54,122 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 33 places, 26 transitions, 70 flow [2023-10-12 17:13:54,123 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 33 places, 26 transitions, 70 flow [2023-10-12 17:13:54,129 INFO L124 PetriNetUnfolderBase]: 3/26 cut-off events. [2023-10-12 17:13:54,129 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-10-12 17:13:54,130 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 17:13:54,130 INFO L119 LiptonReduction]: Number of co-enabled transitions 144 [2023-10-12 17:13:54,358 INFO L134 LiptonReduction]: Checked pairs total: 96 [2023-10-12 17:13:54,358 INFO L136 LiptonReduction]: Total number of compositions: 12 [2023-10-12 17:13:54,374 INFO L305 stractBuchiCegarLoop]: Interprodecural is true [2023-10-12 17:13:54,374 INFO L306 stractBuchiCegarLoop]: Hoare is false [2023-10-12 17:13:54,375 INFO L307 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-10-12 17:13:54,375 INFO L308 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-10-12 17:13:54,375 INFO L309 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-10-12 17:13:54,375 INFO L310 stractBuchiCegarLoop]: Difference is false [2023-10-12 17:13:54,375 INFO L311 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-10-12 17:13:54,375 INFO L315 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-10-12 17:13:54,376 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 0 states, but on-demand construction may add more states [2023-10-12 17:13:54,413 INFO L131 ngComponentsAnalysis]: Automaton has 15 accepting balls. 15 [2023-10-12 17:13:54,414 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-10-12 17:13:54,414 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-10-12 17:13:54,420 INFO L149 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-10-12 17:13:54,420 INFO L150 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-10-12 17:13:54,421 INFO L337 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-10-12 17:13:54,421 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 24 states, but on-demand construction may add more states [2023-10-12 17:13:54,427 INFO L131 ngComponentsAnalysis]: Automaton has 15 accepting balls. 15 [2023-10-12 17:13:54,427 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-10-12 17:13:54,428 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-10-12 17:13:54,428 INFO L149 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-10-12 17:13:54,429 INFO L150 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-10-12 17:13:54,432 INFO L748 eck$LassoCheckResult]: Stem: 39#[$Ultimate##0]don't care [102] $Ultimate##0-->L60: Formula: (and (= v_i_19 v_res1_19) (= v_M_14 v_k_19) (< v_M_14 v_N_16) (= v_i_19 0) (<= 0 v_M_14) (= v_i_19 v_j_19) (= v_i_19 v_res2_29)) InVars {N=v_N_16, M=v_M_14, k=v_k_19, res1=v_res1_19, j=v_j_19, i=v_i_19, res2=v_res2_29} OutVars{N=v_N_16, M=v_M_14, k=v_k_19, res1=v_res1_19, j=v_j_19, i=v_i_19, res2=v_res2_29} AuxVars[] AssignedVars[] 42#[L60]don't care [81] L60-->L24-1: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0] 44#[L60-1, L24-1]don't care [2023-10-12 17:13:54,432 INFO L750 eck$LassoCheckResult]: Loop: 44#[L60-1, L24-1]don't care [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#[L60-1, L24-1]don't care [2023-10-12 17:13:54,441 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:13:54,442 INFO L85 PathProgramCache]: Analyzing trace with hash 4204, now seen corresponding path program 1 times [2023-10-12 17:13:54,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:13:54,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216109162] [2023-10-12 17:13:54,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:13:54,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:13:54,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:13:54,543 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:13:54,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:13:54,568 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:13:54,570 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:13:54,570 INFO L85 PathProgramCache]: Analyzing trace with hash 128, now seen corresponding path program 1 times [2023-10-12 17:13:54,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:13:54,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459895725] [2023-10-12 17:13:54,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:13:54,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:13:54,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:13:54,581 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:13:54,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:13:54,593 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:13:54,595 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:13:54,595 INFO L85 PathProgramCache]: Analyzing trace with hash 130421, now seen corresponding path program 1 times [2023-10-12 17:13:54,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:13:54,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1114328683] [2023-10-12 17:13:54,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:13:54,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:13:54,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:13:54,610 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:13:54,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:13:54,625 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:13:54,721 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:13:54,721 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:13:54,722 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:13:54,722 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:13:54,722 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-10-12 17:13:54,722 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:13:54,722 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:13:54,722 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:13:54,722 INFO L133 ssoRankerPreferences]: Filename of dumped script: dot-product-array.wvr.bpl_BEv2_Iteration1_Lasso [2023-10-12 17:13:54,722 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:13:54,722 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:13:54,734 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 17:13:54,744 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 17:13:54,767 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 17:13:54,770 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 17:13:54,843 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:13:54,845 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-10-12 17:13:54,847 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:13:54,847 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:13:54,885 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 17:13:54,915 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 17:13:54,916 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 17:13:54,923 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:13:54,924 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:13:54,924 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:13:54,924 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:13:54,958 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:13:54,958 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:13:54,961 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:13:54,972 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 17:13:54,973 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:13:54,973 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:13:55,116 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 17:13:55,117 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 17:13:55,119 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 17:13:55,127 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:13:55,127 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-10-12 17:13:55,127 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:13:55,127 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:13:55,127 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:13:55,141 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-10-12 17:13:55,141 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-10-12 17:13:55,156 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:13:55,181 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 17:13:55,182 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:13:55,182 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:13:55,193 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 17:13:55,196 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 17:13:55,198 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 17:13:55,205 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:13:55,205 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:13:55,205 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:13:55,205 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:13:55,211 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:13:55,211 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:13:55,231 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-10-12 17:13:55,244 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2023-10-12 17:13:55,244 INFO L444 ModelExtractionUtils]: 8 out of 16 variables were initially zero. Simplification set additionally 5 variables to zero. [2023-10-12 17:13:55,246 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:13:55,246 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:13:55,281 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 17:13:55,282 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 17:13:55,399 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-10-12 17:13:55,414 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2023-10-12 17:13:55,414 INFO L513 LassoAnalysis]: Proved termination. [2023-10-12 17:13:55,415 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(i, N) = -1*i + 1*N Supporting invariants [] [2023-10-12 17:13:55,420 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 17:13:55,423 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-10-12 17:13:55,445 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:13:55,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:13:55,454 INFO L262 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 2 conjunts are in the unsatisfiable core [2023-10-12 17:13:55,455 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:13:55,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:13:55,465 WARN L260 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2023-10-12 17:13:55,466 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:13:55,466 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 17:13:55,484 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 17:13:55,486 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand currently 24 states, but on-demand construction may add more states Second 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 17:13:55,538 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand currently 24 states, but on-demand construction may add more states. Second operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 65 states and 193 transitions. Complement of second has 5 states. [2023-10-12 17:13:55,540 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 17:13:55,545 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 17:13:55,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 23 transitions. [2023-10-12 17:13:55,546 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 2 letters. Loop has 1 letters. [2023-10-12 17:13:55,547 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:13:55,549 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 3 letters. Loop has 1 letters. [2023-10-12 17:13:55,551 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:13:55,551 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 2 letters. Loop has 2 letters. [2023-10-12 17:13:55,556 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:13:55,557 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 65 states and 193 transitions. [2023-10-12 17:13:55,564 INFO L131 ngComponentsAnalysis]: Automaton has 12 accepting balls. 12 [2023-10-12 17:13:55,567 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 65 states to 39 states and 120 transitions. [2023-10-12 17:13:55,568 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2023-10-12 17:13:55,568 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 28 [2023-10-12 17:13:55,568 INFO L73 IsDeterministic]: Start isDeterministic. Operand 39 states and 120 transitions. [2023-10-12 17:13:55,569 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-10-12 17:13:55,569 INFO L219 hiAutomatonCegarLoop]: Abstraction has 39 states and 120 transitions. [2023-10-12 17:13:55,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states and 120 transitions. [2023-10-12 17:13:55,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 29. [2023-10-12 17:13:55,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 29 states have (on average 3.1724137931034484) internal successors, (92), 28 states have internal predecessors, (92), 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 17:13:55,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 92 transitions. [2023-10-12 17:13:55,589 INFO L241 hiAutomatonCegarLoop]: Abstraction has 29 states and 92 transitions. [2023-10-12 17:13:55,589 INFO L430 stractBuchiCegarLoop]: Abstraction has 29 states and 92 transitions. [2023-10-12 17:13:55,590 INFO L337 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-10-12 17:13:55,590 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 29 states and 92 transitions. [2023-10-12 17:13:55,593 INFO L131 ngComponentsAnalysis]: Automaton has 12 accepting balls. 12 [2023-10-12 17:13:55,594 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-10-12 17:13:55,594 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-10-12 17:13:55,594 INFO L149 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2023-10-12 17:13:55,594 INFO L150 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-10-12 17:13:55,594 INFO L748 eck$LassoCheckResult]: Stem: 235#[$Ultimate##0]don't care [102] $Ultimate##0-->L60: Formula: (and (= v_i_19 v_res1_19) (= v_M_14 v_k_19) (< v_M_14 v_N_16) (= v_i_19 0) (<= 0 v_M_14) (= v_i_19 v_j_19) (= v_i_19 v_res2_29)) InVars {N=v_N_16, M=v_M_14, k=v_k_19, res1=v_res1_19, j=v_j_19, i=v_i_19, res2=v_res2_29} OutVars{N=v_N_16, M=v_M_14, k=v_k_19, res1=v_res1_19, j=v_j_19, i=v_i_19, res2=v_res2_29} AuxVars[] AssignedVars[] 223#[L60]don't care [81] L60-->L24-1: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0] 213#[L60-1, L24-1]don't care [84] L60-1-->L35-1: Formula: (and (= 2 v_thread2Thread1of1ForFork1_thidvar1_2) (= 2 v_thread2Thread1of1ForFork1_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_2, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_thidvar0, thread2Thread1of1ForFork1_thidvar1] 221#[L24-1, L61, L35-1]don't care [2023-10-12 17:13:55,595 INFO L750 eck$LassoCheckResult]: Loop: 221#[L24-1, L61, L35-1]don't care [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] 221#[L24-1, L61, L35-1]don't care [2023-10-12 17:13:55,595 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:13:55,595 INFO L85 PathProgramCache]: Analyzing trace with hash 130408, now seen corresponding path program 1 times [2023-10-12 17:13:55,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:13:55,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125476791] [2023-10-12 17:13:55,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:13:55,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:13:55,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:13:55,603 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:13:55,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:13:55,615 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:13:55,616 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:13:55,616 INFO L85 PathProgramCache]: Analyzing trace with hash 126, now seen corresponding path program 1 times [2023-10-12 17:13:55,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:13:55,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728033519] [2023-10-12 17:13:55,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:13:55,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:13:55,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:13:55,622 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:13:55,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:13:55,628 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:13:55,629 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:13:55,629 INFO L85 PathProgramCache]: Analyzing trace with hash 4042743, now seen corresponding path program 1 times [2023-10-12 17:13:55,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:13:55,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961196351] [2023-10-12 17:13:55,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:13:55,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:13:55,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:13:55,646 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:13:55,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:13:55,651 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:13:55,721 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:13:55,721 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:13:55,721 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:13:55,721 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:13:55,721 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-10-12 17:13:55,721 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:13:55,721 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:13:55,721 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:13:55,722 INFO L133 ssoRankerPreferences]: Filename of dumped script: dot-product-array.wvr.bpl_BEv2_Iteration2_Lasso [2023-10-12 17:13:55,722 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:13:55,722 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:13:55,723 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 17:13:55,725 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 17:13:55,728 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 17:13:55,743 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 17:13:55,745 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 17:13:55,747 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 17:13:55,817 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:13:55,817 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-10-12 17:13:55,818 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:13:55,818 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:13:55,833 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 17:13:55,848 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 17:13:55,850 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 17:13:55,854 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:13:55,854 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:13:55,855 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:13:55,855 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:13:55,856 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:13:55,856 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:13:55,880 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:13:55,899 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2023-10-12 17:13:55,899 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:13:55,900 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:13:55,913 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 17:13:55,914 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 17:13:55,916 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 17:13:55,922 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:13:55,922 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:13:55,922 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:13:55,922 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:13:55,924 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:13:55,924 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:13:55,935 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:13:55,938 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2023-10-12 17:13:55,938 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:13:55,938 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:13:55,939 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 17:13:55,941 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 17:13:55,943 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 17:13:55,949 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:13:55,949 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-10-12 17:13:55,949 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:13:55,949 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:13:55,949 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:13:55,950 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-10-12 17:13:55,950 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-10-12 17:13:55,981 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:13:55,996 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 17:13:55,997 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:13:55,997 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:13:56,019 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 17:13:56,048 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 17:13:56,048 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 17:13:56,054 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:13:56,055 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:13:56,055 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:13:56,055 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:13:56,057 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:13:56,057 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:13:56,074 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:13:56,095 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 17:13:56,095 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:13:56,095 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:13:56,097 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 17:13:56,100 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 17:13:56,101 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 17:13:56,107 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:13:56,107 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:13:56,107 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:13:56,107 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:13:56,111 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:13:56,111 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:13:56,128 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-10-12 17:13:56,138 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2023-10-12 17:13:56,138 INFO L444 ModelExtractionUtils]: 9 out of 16 variables were initially zero. Simplification set additionally 4 variables to zero. [2023-10-12 17:13:56,139 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:13:56,139 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:13:56,149 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 17:13:56,150 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 17:13:56,157 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-10-12 17:13:56,185 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2023-10-12 17:13:56,185 INFO L513 LassoAnalysis]: Proved termination. [2023-10-12 17:13:56,185 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(M, j) = 1*M - 1*j Supporting invariants [] [2023-10-12 17:13:56,190 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2023-10-12 17:13:56,191 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-10-12 17:13:56,203 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:13:56,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:13:56,210 INFO L262 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 2 conjunts are in the unsatisfiable core [2023-10-12 17:13:56,211 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:13:56,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:13:56,220 WARN L260 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2023-10-12 17:13:56,221 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:13:56,221 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 17:13:56,222 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 17:13:56,222 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 29 states and 92 transitions. cyclomatic complexity: 81 Second 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 17:13:56,258 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 29 states and 92 transitions. cyclomatic complexity: 81. Second 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) Result 85 states and 277 transitions. Complement of second has 4 states. [2023-10-12 17:13:56,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-10-12 17:13:56,259 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 17:13:56,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 22 transitions. [2023-10-12 17:13:56,260 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 22 transitions. Stem has 3 letters. Loop has 1 letters. [2023-10-12 17:13:56,260 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:13:56,260 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 22 transitions. Stem has 4 letters. Loop has 1 letters. [2023-10-12 17:13:56,260 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:13:56,260 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 22 transitions. Stem has 3 letters. Loop has 2 letters. [2023-10-12 17:13:56,260 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:13:56,260 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 85 states and 277 transitions. [2023-10-12 17:13:56,262 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 7 [2023-10-12 17:13:56,263 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 85 states to 51 states and 164 transitions. [2023-10-12 17:13:56,263 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2023-10-12 17:13:56,263 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 29 [2023-10-12 17:13:56,263 INFO L73 IsDeterministic]: Start isDeterministic. Operand 51 states and 164 transitions. [2023-10-12 17:13:56,263 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-10-12 17:13:56,263 INFO L219 hiAutomatonCegarLoop]: Abstraction has 51 states and 164 transitions. [2023-10-12 17:13:56,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states and 164 transitions. [2023-10-12 17:13:56,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 42. [2023-10-12 17:13:56,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 42 states have (on average 3.4523809523809526) internal successors, (145), 41 states have internal predecessors, (145), 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 17:13:56,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 145 transitions. [2023-10-12 17:13:56,267 INFO L241 hiAutomatonCegarLoop]: Abstraction has 42 states and 145 transitions. [2023-10-12 17:13:56,267 INFO L430 stractBuchiCegarLoop]: Abstraction has 42 states and 145 transitions. [2023-10-12 17:13:56,267 INFO L337 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-10-12 17:13:56,267 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 42 states and 145 transitions. [2023-10-12 17:13:56,268 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 7 [2023-10-12 17:13:56,268 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-10-12 17:13:56,268 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-10-12 17:13:56,268 INFO L149 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2023-10-12 17:13:56,268 INFO L150 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-10-12 17:13:56,268 INFO L748 eck$LassoCheckResult]: Stem: 416#[$Ultimate##0]don't care [102] $Ultimate##0-->L60: Formula: (and (= v_i_19 v_res1_19) (= v_M_14 v_k_19) (< v_M_14 v_N_16) (= v_i_19 0) (<= 0 v_M_14) (= v_i_19 v_j_19) (= v_i_19 v_res2_29)) InVars {N=v_N_16, M=v_M_14, k=v_k_19, res1=v_res1_19, j=v_j_19, i=v_i_19, res2=v_res2_29} OutVars{N=v_N_16, M=v_M_14, k=v_k_19, res1=v_res1_19, j=v_j_19, i=v_i_19, res2=v_res2_29} AuxVars[] AssignedVars[] 394#[L60]don't care [81] L60-->L24-1: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0] 384#[L60-1, L24-1]don't care [84] L60-1-->L35-1: Formula: (and (= 2 v_thread2Thread1of1ForFork1_thidvar1_2) (= 2 v_thread2Thread1of1ForFork1_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_2, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_thidvar0, thread2Thread1of1ForFork1_thidvar1] 390#[L24-1, L61, L35-1]don't care [87] L61-->L46-1: Formula: (and (= 3 v_thread3Thread1of1ForFork2_thidvar0_2) (= 3 v_thread3Thread1of1ForFork2_thidvar1_2) (= 3 v_thread3Thread1of1ForFork2_thidvar2_2)) InVars {} OutVars{thread3Thread1of1ForFork2_thidvar2=v_thread3Thread1of1ForFork2_thidvar2_2, thread3Thread1of1ForFork2_thidvar1=v_thread3Thread1of1ForFork2_thidvar1_2, thread3Thread1of1ForFork2_thidvar0=v_thread3Thread1of1ForFork2_thidvar0_2} AuxVars[] AssignedVars[thread3Thread1of1ForFork2_thidvar2, thread3Thread1of1ForFork2_thidvar1, thread3Thread1of1ForFork2_thidvar0] 402#[L62, L24-1, L46-1, L35-1]don't care [2023-10-12 17:13:56,268 INFO L750 eck$LassoCheckResult]: Loop: 402#[L62, L24-1, L46-1, L35-1]don't care [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] 402#[L62, L24-1, L46-1, L35-1]don't care [2023-10-12 17:13:56,269 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:13:56,269 INFO L85 PathProgramCache]: Analyzing trace with hash 4042735, now seen corresponding path program 1 times [2023-10-12 17:13:56,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:13:56,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374721772] [2023-10-12 17:13:56,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:13:56,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:13:56,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:13:56,276 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:13:56,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:13:56,283 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:13:56,284 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:13:56,284 INFO L85 PathProgramCache]: Analyzing trace with hash 123, now seen corresponding path program 1 times [2023-10-12 17:13:56,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:13:56,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371414846] [2023-10-12 17:13:56,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:13:56,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:13:56,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:13:56,296 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:13:56,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:13:56,303 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:13:56,304 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:13:56,304 INFO L85 PathProgramCache]: Analyzing trace with hash 125324877, now seen corresponding path program 1 times [2023-10-12 17:13:56,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:13:56,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49161079] [2023-10-12 17:13:56,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:13:56,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:13:56,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:13:56,316 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:13:56,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:13:56,325 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:13:56,414 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:13:56,414 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:13:56,414 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:13:56,414 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:13:56,414 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-10-12 17:13:56,414 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:13:56,414 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:13:56,415 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:13:56,415 INFO L133 ssoRankerPreferences]: Filename of dumped script: dot-product-array.wvr.bpl_BEv2_Iteration3_Lasso [2023-10-12 17:13:56,415 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:13:56,415 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:13:56,419 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 17:13:56,422 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 17:13:56,424 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 17:13:56,426 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 17:13:56,442 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 17:13:56,444 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 17:13:56,447 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 17:13:56,449 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 17:13:56,451 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 17:13:56,458 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 17:13:56,556 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:13:56,556 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-10-12 17:13:56,556 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:13:56,556 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:13:56,570 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 17:13:56,573 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 17:13:56,576 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 17:13:56,582 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:13:56,582 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:13:56,582 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:13:56,582 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:13:56,583 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:13:56,583 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:13:56,586 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:13:56,588 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2023-10-12 17:13:56,589 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:13:56,589 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:13:56,590 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 17:13:56,591 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 17:13:56,593 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 17:13:56,598 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:13:56,599 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:13:56,599 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:13:56,599 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:13:56,600 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:13:56,600 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:13:56,633 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:13:56,639 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2023-10-12 17:13:56,639 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:13:56,639 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:13:56,653 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 17:13:56,697 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 17:13:56,698 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 17:13:56,703 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:13:56,704 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:13:56,704 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:13:56,704 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:13:56,705 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:13:56,705 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:13:56,708 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:13:56,714 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 17:13:56,715 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:13:56,715 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:13:56,716 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 17:13:56,717 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 17:13:56,719 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 17:13:56,736 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:13:56,736 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:13:56,736 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:13:56,736 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:13:56,739 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:13:56,739 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:13:56,756 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-10-12 17:13:56,770 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2023-10-12 17:13:56,770 INFO L444 ModelExtractionUtils]: 6 out of 13 variables were initially zero. Simplification set additionally 4 variables to zero. [2023-10-12 17:13:56,770 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:13:56,771 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:13:56,775 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 17:13:56,797 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-10-12 17:13:56,804 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 17:13:56,805 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 17:13:56,808 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2023-10-12 17:13:56,824 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2023-10-12 17:13:56,824 INFO L513 LassoAnalysis]: Proved termination. [2023-10-12 17:13:56,825 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(k, N) = -1*k + 1*N Supporting invariants [] [2023-10-12 17:13:56,827 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2023-10-12 17:13:56,828 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-10-12 17:13:56,839 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:13:56,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:13:56,846 INFO L262 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 2 conjunts are in the unsatisfiable core [2023-10-12 17:13:56,846 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:13:56,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:13:56,854 WARN L260 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2023-10-12 17:13:56,854 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:13:56,854 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 17:13:56,854 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 17:13:56,855 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 42 states and 145 transitions. cyclomatic complexity: 122 Second 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 17:13:56,875 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 42 states and 145 transitions. cyclomatic complexity: 122. Second 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) Result 98 states and 307 transitions. Complement of second has 4 states. [2023-10-12 17:13:56,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-10-12 17:13:56,876 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 17:13:56,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 22 transitions. [2023-10-12 17:13:56,876 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 22 transitions. Stem has 4 letters. Loop has 1 letters. [2023-10-12 17:13:56,876 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:13:56,876 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 22 transitions. Stem has 5 letters. Loop has 1 letters. [2023-10-12 17:13:56,876 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:13:56,876 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 22 transitions. Stem has 4 letters. Loop has 2 letters. [2023-10-12 17:13:56,876 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:13:56,877 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 98 states and 307 transitions. [2023-10-12 17:13:56,878 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-10-12 17:13:56,878 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 98 states to 0 states and 0 transitions. [2023-10-12 17:13:56,878 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-10-12 17:13:56,878 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-10-12 17:13:56,879 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-10-12 17:13:56,879 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-10-12 17:13:56,879 INFO L219 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-10-12 17:13:56,879 INFO L241 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-10-12 17:13:56,879 INFO L430 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-10-12 17:13:56,879 INFO L337 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-10-12 17:13:56,879 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-10-12 17:13:56,879 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-10-12 17:13:56,879 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-10-12 17:13:56,883 INFO L201 PluginConnector]: Adding new model dot-product-array.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 12.10 05:13:56 BoogieIcfgContainer [2023-10-12 17:13:56,883 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-10-12 17:13:56,884 INFO L158 Benchmark]: Toolchain (without parser) took 3119.36ms. Allocated memory was 178.3MB in the beginning and 260.0MB in the end (delta: 81.8MB). Free memory was 127.0MB in the beginning and 215.7MB in the end (delta: -88.7MB). There was no memory consumed. Max. memory is 8.0GB. [2023-10-12 17:13:56,884 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.23ms. Allocated memory is still 178.3MB. Free memory is still 128.1MB. There was no memory consumed. Max. memory is 8.0GB. [2023-10-12 17:13:56,884 INFO L158 Benchmark]: Boogie Procedure Inliner took 18.12ms. Allocated memory is still 178.3MB. Free memory was 126.8MB in the beginning and 125.4MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-10-12 17:13:56,885 INFO L158 Benchmark]: Boogie Preprocessor took 19.32ms. Allocated memory is still 178.3MB. Free memory was 125.4MB in the beginning and 124.3MB in the end (delta: 1.1MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-10-12 17:13:56,885 INFO L158 Benchmark]: RCFGBuilder took 207.85ms. Allocated memory is still 178.3MB. Free memory was 124.2MB in the beginning and 146.4MB in the end (delta: -22.2MB). Peak memory consumption was 16.9MB. Max. memory is 8.0GB. [2023-10-12 17:13:56,885 INFO L158 Benchmark]: BuchiAutomizer took 2870.02ms. Allocated memory was 178.3MB in the beginning and 260.0MB in the end (delta: 81.8MB). Free memory was 146.3MB in the beginning and 215.7MB in the end (delta: -69.4MB). Peak memory consumption was 13.2MB. Max. memory is 8.0GB. [2023-10-12 17:13:56,886 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.23ms. Allocated memory is still 178.3MB. Free memory is still 128.1MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 18.12ms. Allocated memory is still 178.3MB. Free memory was 126.8MB in the beginning and 125.4MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 19.32ms. Allocated memory is still 178.3MB. Free memory was 125.4MB in the beginning and 124.3MB in the end (delta: 1.1MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 207.85ms. Allocated memory is still 178.3MB. Free memory was 124.2MB in the beginning and 146.4MB in the end (delta: -22.2MB). Peak memory consumption was 16.9MB. Max. memory is 8.0GB. * BuchiAutomizer took 2870.02ms. Allocated memory was 178.3MB in the beginning and 260.0MB in the end (delta: 81.8MB). Free memory was 146.3MB in the beginning and 215.7MB in the end (delta: -69.4MB). Peak memory consumption was 13.2MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 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 3 locations. One deterministic module has affine ranking function -1 * k + N and consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.8s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 2.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 19 StatesRemovedByMinimization, 2 NontrivialMinimizations. 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, 40 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 37 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 68 IncrementalHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 0 mSDtfsCounter, 68 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: 114ms 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 17:13:56,899 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 17:13:57,102 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request...