/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_PETRI_NET -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/array-sum.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.fs.rabin-petrinet-4c29625-m [2023-10-12 17:25:46,955 INFO L172 SettingsManager]: Resetting all preferences to default values... [2023-10-12 17:25:47,029 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 17:25:47,059 INFO L114 SettingsManager]: Preferences different from defaults after loading the file: [2023-10-12 17:25:47,059 INFO L135 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-10-12 17:25:47,060 INFO L137 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-10-12 17:25:47,061 INFO L135 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-10-12 17:25:47,062 INFO L137 SettingsManager]: * Create parallel compositions if possible=false [2023-10-12 17:25:47,062 INFO L137 SettingsManager]: * Use SBE=true [2023-10-12 17:25:47,065 INFO L135 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-10-12 17:25:47,066 INFO L137 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-10-12 17:25:47,066 INFO L137 SettingsManager]: * Use old map elimination=false [2023-10-12 17:25:47,066 INFO L137 SettingsManager]: * Use external solver (rank synthesis)=false [2023-10-12 17:25:47,067 INFO L137 SettingsManager]: * Use only trivial implications for array writes=true [2023-10-12 17:25:47,068 INFO L137 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-10-12 17:25:47,068 INFO L135 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-10-12 17:25:47,068 INFO L137 SettingsManager]: * sizeof long=4 [2023-10-12 17:25:47,069 INFO L137 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-10-12 17:25:47,069 INFO L137 SettingsManager]: * Overapproximate operations on floating types=true [2023-10-12 17:25:47,069 INFO L137 SettingsManager]: * sizeof POINTER=4 [2023-10-12 17:25:47,069 INFO L137 SettingsManager]: * Check division by zero=IGNORE [2023-10-12 17:25:47,071 INFO L137 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-10-12 17:25:47,071 INFO L137 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-10-12 17:25:47,071 INFO L137 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-10-12 17:25:47,071 INFO L137 SettingsManager]: * sizeof long double=12 [2023-10-12 17:25:47,071 INFO L137 SettingsManager]: * Check if freed pointer was valid=false [2023-10-12 17:25:47,072 INFO L137 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-10-12 17:25:47,072 INFO L137 SettingsManager]: * Use constant arrays=true [2023-10-12 17:25:47,072 INFO L137 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-10-12 17:25:47,072 INFO L135 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-10-12 17:25:47,073 INFO L137 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-10-12 17:25:47,073 INFO L135 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-10-12 17:25:47,074 INFO L137 SettingsManager]: * Trace refinement strategy=CAMEL [2023-10-12 17:25:47,075 INFO L135 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-10-12 17:25:47,075 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: Automaton type for concurrent programs -> BUCHI_PETRI_NET [2023-10-12 17:25:47,290 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-10-12 17:25:47,310 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-10-12 17:25:47,312 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-10-12 17:25:47,313 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2023-10-12 17:25:47,314 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2023-10-12 17:25:47,315 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/array-sum.wvr.bpl [2023-10-12 17:25:47,315 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/array-sum.wvr.bpl' [2023-10-12 17:25:47,340 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-10-12 17:25:47,342 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2023-10-12 17:25:47,343 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-10-12 17:25:47,343 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-10-12 17:25:47,343 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-10-12 17:25:47,354 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "array-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:25:47" (1/1) ... [2023-10-12 17:25:47,362 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "array-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:25:47" (1/1) ... [2023-10-12 17:25:47,367 INFO L138 Inliner]: procedures = 4, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2023-10-12 17:25:47,368 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-10-12 17:25:47,370 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-10-12 17:25:47,371 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-10-12 17:25:47,371 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-10-12 17:25:47,378 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "array-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:25:47" (1/1) ... [2023-10-12 17:25:47,378 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "array-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:25:47" (1/1) ... [2023-10-12 17:25:47,380 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "array-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:25:47" (1/1) ... [2023-10-12 17:25:47,380 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "array-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:25:47" (1/1) ... [2023-10-12 17:25:47,383 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "array-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:25:47" (1/1) ... [2023-10-12 17:25:47,387 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "array-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:25:47" (1/1) ... [2023-10-12 17:25:47,387 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "array-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:25:47" (1/1) ... [2023-10-12 17:25:47,388 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "array-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:25:47" (1/1) ... [2023-10-12 17:25:47,391 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-10-12 17:25:47,392 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-10-12 17:25:47,392 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-10-12 17:25:47,393 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-10-12 17:25:47,393 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "array-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:25:47" (1/1) ... [2023-10-12 17:25:47,399 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:25:47,405 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:25:47,422 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 17:25:47,434 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 17:25:47,457 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2023-10-12 17:25:47,457 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-10-12 17:25:47,458 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-10-12 17:25:47,458 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2023-10-12 17:25:47,458 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-10-12 17:25:47,458 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-10-12 17:25:47,458 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2023-10-12 17:25:47,458 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-10-12 17:25:47,459 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-10-12 17:25:47,459 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2023-10-12 17:25:47,459 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-10-12 17:25:47,459 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-10-12 17:25:47,460 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 17:25:47,503 INFO L236 CfgBuilder]: Building ICFG [2023-10-12 17:25:47,505 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-10-12 17:25:47,608 INFO L277 CfgBuilder]: Performing block encoding [2023-10-12 17:25:47,614 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-10-12 17:25:47,614 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-10-12 17:25:47,616 INFO L201 PluginConnector]: Adding new model array-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:25:47 BoogieIcfgContainer [2023-10-12 17:25:47,616 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-10-12 17:25:47,617 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-10-12 17:25:47,617 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-10-12 17:25:47,620 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-10-12 17:25:47,621 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-10-12 17:25:47,621 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "array-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:25:47" (1/2) ... [2023-10-12 17:25:47,622 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@20c71f21 and model type array-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 12.10 05:25:47, skipping insertion in model container [2023-10-12 17:25:47,622 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-10-12 17:25:47,622 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "array-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:25:47" (2/2) ... [2023-10-12 17:25:47,624 INFO L332 chiAutomizerObserver]: Analyzing ICFG array-sum.wvr.bpl [2023-10-12 17:25:47,707 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-10-12 17:25:47,731 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 39 places, 35 transitions, 94 flow [2023-10-12 17:25:47,749 INFO L124 PetriNetUnfolderBase]: 3/29 cut-off events. [2023-10-12 17:25:47,749 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-10-12 17:25:47,753 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42 conditions, 29 events. 3/29 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 52 event pairs, 0 based on Foata normal form. 0/25 useless extension candidates. Maximal degree in co-relation 21. Up to 2 conditions per place. [2023-10-12 17:25:47,753 INFO L82 GeneralOperation]: Start removeDead. Operand has 39 places, 35 transitions, 94 flow [2023-10-12 17:25:47,757 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 36 places, 29 transitions, 76 flow [2023-10-12 17:25:47,760 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-10-12 17:25:47,772 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 36 places, 29 transitions, 76 flow [2023-10-12 17:25:47,774 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 36 places, 29 transitions, 76 flow [2023-10-12 17:25:47,774 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 36 places, 29 transitions, 76 flow [2023-10-12 17:25:47,783 INFO L124 PetriNetUnfolderBase]: 3/29 cut-off events. [2023-10-12 17:25:47,783 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-10-12 17:25:47,784 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42 conditions, 29 events. 3/29 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 52 event pairs, 0 based on Foata normal form. 0/25 useless extension candidates. Maximal degree in co-relation 21. Up to 2 conditions per place. [2023-10-12 17:25:47,784 INFO L119 LiptonReduction]: Number of co-enabled transitions 210 [2023-10-12 17:25:48,126 INFO L134 LiptonReduction]: Checked pairs total: 138 [2023-10-12 17:25:48,127 INFO L136 LiptonReduction]: Total number of compositions: 15 [2023-10-12 17:25:48,138 INFO L305 stractBuchiCegarLoop]: Interprodecural is true [2023-10-12 17:25:48,138 INFO L306 stractBuchiCegarLoop]: Hoare is false [2023-10-12 17:25:48,138 INFO L307 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-10-12 17:25:48,138 INFO L308 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-10-12 17:25:48,138 INFO L309 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-10-12 17:25:48,139 INFO L310 stractBuchiCegarLoop]: Difference is false [2023-10-12 17:25:48,139 INFO L311 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-10-12 17:25:48,139 INFO L315 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiPetriNetCegarLoop ======== [2023-10-12 17:25:48,139 INFO L84 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 22 places, 15 transitions, 48 flow [2023-10-12 17:25:48,143 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-10-12 17:25:48,143 INFO L124 PetriNetUnfolderBase]: 0/2 cut-off events. [2023-10-12 17:25:48,143 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-10-12 17:25:48,143 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty language is not empty [2023-10-12 17:25:48,145 INFO L337 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-10-12 17:25:48,146 INFO L84 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 22 places, 15 transitions, 48 flow [2023-10-12 17:25:48,147 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-10-12 17:25:48,147 INFO L124 PetriNetUnfolderBase]: 0/2 cut-off events. [2023-10-12 17:25:48,147 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-10-12 17:25:48,147 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty language is not empty [2023-10-12 17:25:48,151 INFO L748 eck$LassoCheckResult]: Stem: 43#[$Ultimate##0]true [108] $Ultimate##0-->L53: Formula: (and (<= 0 v_M_14) (= v_i_17 v_res1_19) (= v_i_17 v_res2_41) (= v_i_17 v_j_23) (= v_M_14 v_k_23) (= v_i_17 0) (< v_M_14 v_N_18)) InVars {N=v_N_18, M=v_M_14, k=v_k_23, res1=v_res1_19, j=v_j_23, i=v_i_17, res2=v_res2_41} OutVars{N=v_N_18, M=v_M_14, k=v_k_23, res1=v_res1_19, j=v_j_23, i=v_i_17, res2=v_res2_41} AuxVars[] AssignedVars[] 45#[L53]true [84] L53-->L22: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0] 47#[L53-1, L22]true [2023-10-12 17:25:48,151 INFO L750 eck$LassoCheckResult]: Loop: 47#[L53-1, L22]true [107] L22-->L22: Formula: (and (= (+ (select v_A_18 v_i_14) v_res1_16 (select v_B_18 v_i_14)) v_res1_15) (< v_i_14 v_N_16) (= v_i_13 (+ v_i_14 1))) InVars {A=v_A_18, N=v_N_16, res1=v_res1_16, i=v_i_14, B=v_B_18} OutVars{A=v_A_18, N=v_N_16, res1=v_res1_15, i=v_i_13, B=v_B_18} AuxVars[] AssignedVars[res1, i] 47#[L53-1, L22]true [2023-10-12 17:25:48,155 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:25:48,155 INFO L85 PathProgramCache]: Analyzing trace with hash 4393, now seen corresponding path program 1 times [2023-10-12 17:25:48,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:25:48,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832781315] [2023-10-12 17:25:48,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:25:48,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:25:48,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:25:48,226 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:25:48,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:25:48,244 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:25:48,246 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:25:48,246 INFO L85 PathProgramCache]: Analyzing trace with hash 138, now seen corresponding path program 1 times [2023-10-12 17:25:48,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:25:48,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980507421] [2023-10-12 17:25:48,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:25:48,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:25:48,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:25:48,254 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:25:48,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:25:48,260 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:25:48,261 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:25:48,261 INFO L85 PathProgramCache]: Analyzing trace with hash 136290, now seen corresponding path program 1 times [2023-10-12 17:25:48,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:25:48,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425042830] [2023-10-12 17:25:48,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:25:48,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:25:48,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:25:48,269 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:25:48,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:25:48,279 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:25:48,377 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:25:48,380 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:25:48,380 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:25:48,380 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:25:48,380 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-10-12 17:25:48,380 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:25:48,380 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:25:48,380 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:25:48,380 INFO L133 ssoRankerPreferences]: Filename of dumped script: array-sum.wvr.bpl_BEv2_Iteration1_Lasso [2023-10-12 17:25:48,381 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:25:48,381 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:25:48,395 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 17:25:48,425 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 17:25:48,428 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 17:25:48,431 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 17:25:48,511 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:25:48,514 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-10-12 17:25:48,515 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:25:48,515 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:25:48,525 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 17:25:48,529 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 17:25:48,537 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:25:48,538 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:25:48,538 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:25:48,538 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:25:48,549 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:25:48,549 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:25:48,559 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 17:25:48,573 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-10-12 17:25:48,599 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2023-10-12 17:25:48,599 INFO L444 ModelExtractionUtils]: 4 out of 16 variables were initially zero. Simplification set additionally 9 variables to zero. [2023-10-12 17:25:48,601 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:25:48,601 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:25:48,603 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 17:25:48,604 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 17:25:48,633 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-10-12 17:25:48,644 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2023-10-12 17:25:48,645 INFO L513 LassoAnalysis]: Proved termination. [2023-10-12 17:25:48,645 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(i, N) = -1*i + 1*N Supporting invariants [] [2023-10-12 17:25:48,653 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 17:25:48,655 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-10-12 17:25:48,675 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:25:48,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:25:48,687 INFO L262 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 2 conjunts are in the unsatisfiable core [2023-10-12 17:25:48,687 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:25:48,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:25:48,707 WARN L260 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2023-10-12 17:25:48,707 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:25:48,708 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 17:25:48,747 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 17:25:48,748 INFO L74 BuchiComplementNCSB]: Start buchiComplementNCSB. 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 17:25:48,882 INFO L82 BuchiComplementNCSB]: Finished buchiComplementNCSB. 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 5 states and 292 transitions. [2023-10-12 17:25:48,884 INFO L79 BuchiIntersect]: Starting Intersection [2023-10-12 17:25:48,886 INFO L86 BuchiIntersect]: Exiting Intersection [2023-10-12 17:25:48,888 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 17:25:48,891 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 17:25:48,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 200 transitions. [2023-10-12 17:25:48,896 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 200 transitions. Stem has 2 letters. Loop has 1 letters. [2023-10-12 17:25:48,897 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:25:48,897 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 200 transitions. Stem has 3 letters. Loop has 1 letters. [2023-10-12 17:25:48,897 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:25:48,897 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 200 transitions. Stem has 2 letters. Loop has 2 letters. [2023-10-12 17:25:48,897 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:25:48,898 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 32 places, 172 transitions, 904 flow [2023-10-12 17:25:48,927 INFO L124 PetriNetUnfolderBase]: 135/207 cut-off events. [2023-10-12 17:25:48,927 INFO L125 PetriNetUnfolderBase]: For 48/48 co-relation queries the response was YES. [2023-10-12 17:25:48,950 INFO L83 FinitePrefix]: Finished finitePrefix Result has 486 conditions, 207 events. 135/207 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 552 event pairs, 10 based on Foata normal form. 0/120 useless extension candidates. Maximal degree in co-relation 344. Up to 71 conditions per place. [2023-10-12 17:25:48,950 INFO L82 GeneralOperation]: Start removeDeadBuchi. Operand has 32 places, 172 transitions, 904 flow [2023-10-12 17:25:48,954 INFO L88 GeneralOperation]: Finished RemoveDeadBuchi, result has has 32 places, 172 transitions, 904 flow [2023-10-12 17:25:48,954 INFO L430 stractBuchiCegarLoop]: Abstraction has has 32 places, 172 transitions, 904 flow [2023-10-12 17:25:48,954 INFO L337 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-10-12 17:25:48,954 INFO L84 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 32 places, 172 transitions, 904 flow [2023-10-12 17:25:48,961 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-10-12 17:25:48,961 INFO L124 PetriNetUnfolderBase]: 26/41 cut-off events. [2023-10-12 17:25:48,961 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-10-12 17:25:48,961 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty language is not empty [2023-10-12 17:25:48,962 INFO L748 eck$LassoCheckResult]: Stem: 43#[$Ultimate##0]true [108] $Ultimate##0-->L53: Formula: (and (<= 0 v_M_14) (= v_i_17 v_res1_19) (= v_i_17 v_res2_41) (= v_i_17 v_j_23) (= v_M_14 v_k_23) (= v_i_17 0) (< v_M_14 v_N_18)) InVars {N=v_N_18, M=v_M_14, k=v_k_23, res1=v_res1_19, j=v_j_23, i=v_i_17, res2=v_res2_41} OutVars{N=v_N_18, M=v_M_14, k=v_k_23, res1=v_res1_19, j=v_j_23, i=v_i_17, res2=v_res2_41} AuxVars[] AssignedVars[] 45#[L53]true [84] L53-->L22: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0] 47#[L53-1, L22]true [87] L53-1-->L31: Formula: (and (= 2 v_thread2Thread1of1ForFork1_thidvar1_2) (= 2 v_thread2Thread1of1ForFork1_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_2, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_thidvar0, thread2Thread1of1ForFork1_thidvar1] 92#[L54, L31, L22]true [2023-10-12 17:25:48,962 INFO L750 eck$LassoCheckResult]: Loop: 92#[L54, L31, L22]true [104] L31-->L31: Formula: (and (= v_j_19 (+ v_j_20 1)) (= (+ (select v_B_14 v_j_20) v_res2_34 (select v_A_14 v_j_20)) v_res2_33) (< v_j_20 v_M_12)) InVars {A=v_A_14, M=v_M_12, j=v_j_20, res2=v_res2_34, B=v_B_14} OutVars{A=v_A_14, M=v_M_12, j=v_j_19, res2=v_res2_33, B=v_B_14} AuxVars[] AssignedVars[j, res2] 92#[L54, L31, L22]true [104] L31-->L31: Formula: (and (= v_j_19 (+ v_j_20 1)) (= (+ (select v_B_14 v_j_20) v_res2_34 (select v_A_14 v_j_20)) v_res2_33) (< v_j_20 v_M_12)) InVars {A=v_A_14, M=v_M_12, j=v_j_20, res2=v_res2_34, B=v_B_14} OutVars{A=v_A_14, M=v_M_12, j=v_j_19, res2=v_res2_33, B=v_B_14} AuxVars[] AssignedVars[j, res2] 92#[L54, L31, L22]true [2023-10-12 17:25:48,962 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:25:48,963 INFO L85 PathProgramCache]: Analyzing trace with hash 136270, now seen corresponding path program 1 times [2023-10-12 17:25:48,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:25:48,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104792234] [2023-10-12 17:25:48,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:25:48,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:25:48,965 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 17:25:48,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:25:48,970 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:25:48,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:25:48,974 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:25:48,975 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:25:48,975 INFO L85 PathProgramCache]: Analyzing trace with hash 4289, now seen corresponding path program 1 times [2023-10-12 17:25:48,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:25:48,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365022728] [2023-10-12 17:25:48,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:25:48,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:25:48,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:25:48,981 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:25:48,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:25:48,987 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:25:48,987 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:25:48,987 INFO L85 PathProgramCache]: Analyzing trace with hash 130958798, now seen corresponding path program 1 times [2023-10-12 17:25:48,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:25:48,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718089259] [2023-10-12 17:25:48,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:25:48,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:25:48,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:25:48,996 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:25:49,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:25:49,006 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:25:49,123 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:25:49,123 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:25:49,124 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:25:49,124 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:25:49,124 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-10-12 17:25:49,124 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:25:49,124 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:25:49,124 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:25:49,124 INFO L133 ssoRankerPreferences]: Filename of dumped script: array-sum.wvr.bpl_BEv2_Iteration2_Lasso [2023-10-12 17:25:49,124 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:25:49,124 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:25:49,133 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 17:25:49,137 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 17:25:49,139 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:25:49,142 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 17:25:49,167 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 17:25:49,177 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 17:25:49,262 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:25:49,262 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-10-12 17:25:49,262 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:25:49,262 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:25:49,265 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 17:25:49,276 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 17:25:49,284 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:25:49,284 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:25:49,284 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:25:49,284 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:25:49,292 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:25:49,293 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:25:49,297 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 17:25:49,309 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:25:49,311 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 17:25:49,312 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:25:49,312 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:25:49,313 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 17:25:49,316 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 17:25:49,317 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 17:25:49,322 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:25:49,322 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:25:49,323 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:25:49,323 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:25:49,325 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:25:49,325 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:25:49,334 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:25:49,339 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 17:25:49,339 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:25:49,339 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:25:49,340 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 17:25:49,349 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 17:25:49,349 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 17:25:49,355 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:25:49,355 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:25:49,355 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:25:49,356 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:25:49,361 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:25:49,361 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:25:49,372 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:25:49,376 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 17:25:49,376 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:25:49,377 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:25:49,378 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 17:25:49,379 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 17:25:49,381 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 17:25:49,387 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:25:49,387 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:25:49,387 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:25:49,387 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:25:49,390 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:25:49,390 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:25:49,408 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:25:49,414 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 17:25:49,414 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:25:49,415 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:25:49,416 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 17:25:49,423 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 17:25:49,431 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:25:49,431 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:25:49,431 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:25:49,431 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:25:49,435 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:25:49,435 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:25:49,449 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 17:25:49,449 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-10-12 17:25:49,462 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2023-10-12 17:25:49,462 INFO L444 ModelExtractionUtils]: 4 out of 16 variables were initially zero. Simplification set additionally 9 variables to zero. [2023-10-12 17:25:49,462 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:25:49,462 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:25:49,465 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 17:25:49,468 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 17:25:49,469 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-10-12 17:25:49,500 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2023-10-12 17:25:49,500 INFO L513 LassoAnalysis]: Proved termination. [2023-10-12 17:25:49,500 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(M, j) = 1*M - 1*j Supporting invariants [] [2023-10-12 17:25:49,505 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 17:25:49,509 INFO L156 tatePredicateManager]: 1 out of 1 supporting invariants were superfluous and have been removed [2023-10-12 17:25:49,522 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:25:49,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:25:49,532 INFO L262 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 2 conjunts are in the unsatisfiable core [2023-10-12 17:25:49,532 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:25:49,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:25:49,547 INFO L262 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 5 conjunts are in the unsatisfiable core [2023-10-12 17:25:49,548 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:25:49,565 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-10-12 17:25:49,566 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2023-10-12 17:25:49,567 INFO L74 BuchiComplementNCSB]: Start buchiComplementNCSB. Operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 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 17:25:49,725 INFO L82 BuchiComplementNCSB]: Finished buchiComplementNCSB. Operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 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 7 states and 386 transitions. [2023-10-12 17:25:49,726 INFO L79 BuchiIntersect]: Starting Intersection [2023-10-12 17:25:49,760 INFO L86 BuchiIntersect]: Exiting Intersection [2023-10-12 17:25:49,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-10-12 17:25:49,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 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 17:25:49,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 250 transitions. [2023-10-12 17:25:49,768 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 250 transitions. Stem has 3 letters. Loop has 2 letters. [2023-10-12 17:25:49,768 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:25:49,768 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 250 transitions. Stem has 5 letters. Loop has 2 letters. [2023-10-12 17:25:49,768 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:25:49,768 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 250 transitions. Stem has 3 letters. Loop has 4 letters. [2023-10-12 17:25:49,768 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:25:49,768 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 46 places, 2608 transitions, 19104 flow [2023-10-12 17:25:49,894 INFO L124 PetriNetUnfolderBase]: 383/568 cut-off events. [2023-10-12 17:25:49,894 INFO L125 PetriNetUnfolderBase]: For 135/135 co-relation queries the response was YES. [2023-10-12 17:25:49,898 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1875 conditions, 568 events. 383/568 cut-off events. For 135/135 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 2013 event pairs, 16 based on Foata normal form. 0/318 useless extension candidates. Maximal degree in co-relation 1278. Up to 202 conditions per place. [2023-10-12 17:25:49,898 INFO L82 GeneralOperation]: Start removeDeadBuchi. Operand has 46 places, 2608 transitions, 19104 flow [2023-10-12 17:25:49,934 INFO L88 GeneralOperation]: Finished RemoveDeadBuchi, result has has 46 places, 2608 transitions, 19104 flow [2023-10-12 17:25:49,934 INFO L430 stractBuchiCegarLoop]: Abstraction has has 46 places, 2608 transitions, 19104 flow [2023-10-12 17:25:49,934 INFO L337 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-10-12 17:25:49,934 INFO L84 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 46 places, 2608 transitions, 19104 flow [2023-10-12 17:25:49,985 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2023-10-12 17:25:50,001 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-10-12 17:25:50,001 INFO L124 PetriNetUnfolderBase]: 226/310 cut-off events. [2023-10-12 17:25:50,001 INFO L125 PetriNetUnfolderBase]: For 67/67 co-relation queries the response was YES. [2023-10-12 17:25:50,001 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty language is not empty [2023-10-12 17:25:50,002 INFO L748 eck$LassoCheckResult]: Stem: 43#[$Ultimate##0]true [108] $Ultimate##0-->L53: Formula: (and (<= 0 v_M_14) (= v_i_17 v_res1_19) (= v_i_17 v_res2_41) (= v_i_17 v_j_23) (= v_M_14 v_k_23) (= v_i_17 0) (< v_M_14 v_N_18)) InVars {N=v_N_18, M=v_M_14, k=v_k_23, res1=v_res1_19, j=v_j_23, i=v_i_17, res2=v_res2_41} OutVars{N=v_N_18, M=v_M_14, k=v_k_23, res1=v_res1_19, j=v_j_23, i=v_i_17, res2=v_res2_41} AuxVars[] AssignedVars[] 45#[L53]true [84] L53-->L22: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0] 47#[L53-1, L22]true [100] L22-->thread1EXIT: Formula: (<= v_N_6 v_i_9) InVars {N=v_N_6, i=v_i_9} OutVars{N=v_N_6, i=v_i_9} AuxVars[] AssignedVars[] 149#[L53-1, thread1EXIT]true [87] L53-1-->L31: Formula: (and (= 2 v_thread2Thread1of1ForFork1_thidvar1_2) (= 2 v_thread2Thread1of1ForFork1_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_2, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_thidvar0, thread2Thread1of1ForFork1_thidvar1] 151#[L54, L31, thread1EXIT]true [90] L54-->L40: Formula: (and (= 3 v_thread3Thread1of1ForFork2_thidvar0_2) (= 3 v_thread3Thread1of1ForFork2_thidvar1_2) (= 3 v_thread3Thread1of1ForFork2_thidvar2_2)) InVars {} OutVars{thread3Thread1of1ForFork2_thidvar2=v_thread3Thread1of1ForFork2_thidvar2_2, thread3Thread1of1ForFork2_thidvar1=v_thread3Thread1of1ForFork2_thidvar1_2, thread3Thread1of1ForFork2_thidvar0=v_thread3Thread1of1ForFork2_thidvar0_2} AuxVars[] AssignedVars[thread3Thread1of1ForFork2_thidvar2, thread3Thread1of1ForFork2_thidvar1, thread3Thread1of1ForFork2_thidvar0] 153#[L31, L40, thread1EXIT, L55]true [2023-10-12 17:25:50,002 INFO L750 eck$LassoCheckResult]: Loop: 153#[L31, L40, thread1EXIT, L55]true [105] L40-->L40: Formula: (and (= v_k_19 (+ v_k_20 1)) (< v_k_20 v_N_14) (= (+ (select v_B_16 v_k_20) (select v_A_16 v_k_20) v_res2_38) v_res2_37)) InVars {A=v_A_16, N=v_N_14, k=v_k_20, res2=v_res2_38, B=v_B_16} OutVars{A=v_A_16, N=v_N_14, k=v_k_19, res2=v_res2_37, B=v_B_16} AuxVars[] AssignedVars[k, res2] 153#[L31, L40, thread1EXIT, L55]true [105] L40-->L40: Formula: (and (= v_k_19 (+ v_k_20 1)) (< v_k_20 v_N_14) (= (+ (select v_B_16 v_k_20) (select v_A_16 v_k_20) v_res2_38) v_res2_37)) InVars {A=v_A_16, N=v_N_14, k=v_k_20, res2=v_res2_38, B=v_B_16} OutVars{A=v_A_16, N=v_N_14, k=v_k_19, res2=v_res2_37, B=v_B_16} AuxVars[] AssignedVars[k, res2] 153#[L31, L40, thread1EXIT, L55]true [2023-10-12 17:25:50,002 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:25:50,002 INFO L85 PathProgramCache]: Analyzing trace with hash 130970750, now seen corresponding path program 1 times [2023-10-12 17:25:50,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:25:50,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093679589] [2023-10-12 17:25:50,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:25:50,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:25:50,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:25:50,044 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 17:25:50,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-10-12 17:25:50,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093679589] [2023-10-12 17:25:50,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2093679589] provided 1 perfect and 0 imperfect interpolant sequences [2023-10-12 17:25:50,045 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-10-12 17:25:50,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-10-12 17:25:50,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604528162] [2023-10-12 17:25:50,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-10-12 17:25:50,047 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-10-12 17:25:50,048 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:25:50,048 INFO L85 PathProgramCache]: Analyzing trace with hash 4321, now seen corresponding path program 1 times [2023-10-12 17:25:50,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:25:50,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224889431] [2023-10-12 17:25:50,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:25:50,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:25:50,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:25:50,053 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:25:50,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:25:50,058 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:25:50,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-10-12 17:25:50,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-10-12 17:25:50,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-10-12 17:25:50,092 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 2608 transitions, 19104 flow. Second operand has 3 states, 3 states have (on average 1.6666666666666667) 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 17:25:50,092 INFO L124 encePairwiseOnDemand]: Subtrahend is not yet constructed. Will not use universal subtrahend loopers optimization. [2023-10-12 17:25:50,093 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-10-12 17:25:50,240 INFO L124 PetriNetUnfolderBase]: 455/686 cut-off events. [2023-10-12 17:25:50,240 INFO L125 PetriNetUnfolderBase]: For 140/140 co-relation queries the response was YES. [2023-10-12 17:25:50,241 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2940 conditions, 686 events. 455/686 cut-off events. For 140/140 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 2523 event pairs, 24 based on Foata normal form. 34/418 useless extension candidates. Maximal degree in co-relation 2172. Up to 578 conditions per place. [2023-10-12 17:25:50,247 INFO L140 encePairwiseOnDemand]: 46/50 looper letters, 169 selfloop transitions, 6 changer transitions 45/220 dead transitions. [2023-10-12 17:25:50,247 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 220 transitions, 1964 flow [2023-10-12 17:25:50,247 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 38 places, 220 transitions, 1964 flow [2023-10-12 17:25:50,289 INFO L124 PetriNetUnfolderBase]: 455/686 cut-off events. [2023-10-12 17:25:50,289 INFO L125 PetriNetUnfolderBase]: For 140/140 co-relation queries the response was YES. [2023-10-12 17:25:50,290 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2940 conditions, 686 events. 455/686 cut-off events. For 140/140 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 2539 event pairs, 24 based on Foata normal form. 0/384 useless extension candidates. Maximal degree in co-relation 2172. Up to 578 conditions per place. [2023-10-12 17:25:50,290 INFO L82 GeneralOperation]: Start removeDeadBuchi. Operand has 38 places, 220 transitions, 1964 flow [2023-10-12 17:25:50,293 INFO L88 GeneralOperation]: Finished RemoveDeadBuchi, result has has 38 places, 220 transitions, 1964 flow [2023-10-12 17:25:50,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-10-12 17:25:50,294 INFO L430 stractBuchiCegarLoop]: Abstraction has has 38 places, 220 transitions, 1964 flow [2023-10-12 17:25:50,294 INFO L337 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-10-12 17:25:50,295 INFO L84 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 38 places, 220 transitions, 1964 flow [2023-10-12 17:25:50,313 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-10-12 17:25:50,313 INFO L124 PetriNetUnfolderBase]: 170/246 cut-off events. [2023-10-12 17:25:50,313 INFO L125 PetriNetUnfolderBase]: For 33/33 co-relation queries the response was YES. [2023-10-12 17:25:50,313 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty language is not empty [2023-10-12 17:25:50,314 INFO L748 eck$LassoCheckResult]: Stem: 43#[$Ultimate##0]true [108] $Ultimate##0-->L53: Formula: (and (<= 0 v_M_14) (= v_i_17 v_res1_19) (= v_i_17 v_res2_41) (= v_i_17 v_j_23) (= v_M_14 v_k_23) (= v_i_17 0) (< v_M_14 v_N_18)) InVars {N=v_N_18, M=v_M_14, k=v_k_23, res1=v_res1_19, j=v_j_23, i=v_i_17, res2=v_res2_41} OutVars{N=v_N_18, M=v_M_14, k=v_k_23, res1=v_res1_19, j=v_j_23, i=v_i_17, res2=v_res2_41} AuxVars[] AssignedVars[] 45#[L53]true [84] L53-->L22: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0] 47#[L53-1, L22]true [87] L53-1-->L31: Formula: (and (= 2 v_thread2Thread1of1ForFork1_thidvar1_2) (= 2 v_thread2Thread1of1ForFork1_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_2, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_thidvar0, thread2Thread1of1ForFork1_thidvar1] 92#[L54, L31, L22]true [107] L22-->L22: Formula: (and (= (+ (select v_A_18 v_i_14) v_res1_16 (select v_B_18 v_i_14)) v_res1_15) (< v_i_14 v_N_16) (= v_i_13 (+ v_i_14 1))) InVars {A=v_A_18, N=v_N_16, res1=v_res1_16, i=v_i_14, B=v_B_18} OutVars{A=v_A_18, N=v_N_16, res1=v_res1_15, i=v_i_13, B=v_B_18} AuxVars[] AssignedVars[res1, i] 92#[L54, L31, L22]true [90] L54-->L40: Formula: (and (= 3 v_thread3Thread1of1ForFork2_thidvar0_2) (= 3 v_thread3Thread1of1ForFork2_thidvar1_2) (= 3 v_thread3Thread1of1ForFork2_thidvar2_2)) InVars {} OutVars{thread3Thread1of1ForFork2_thidvar2=v_thread3Thread1of1ForFork2_thidvar2_2, thread3Thread1of1ForFork2_thidvar1=v_thread3Thread1of1ForFork2_thidvar1_2, thread3Thread1of1ForFork2_thidvar0=v_thread3Thread1of1ForFork2_thidvar0_2} AuxVars[] AssignedVars[thread3Thread1of1ForFork2_thidvar2, thread3Thread1of1ForFork2_thidvar1, thread3Thread1of1ForFork2_thidvar0] 169#[L31, L22, L40, L55]true [2023-10-12 17:25:50,314 INFO L750 eck$LassoCheckResult]: Loop: 169#[L31, L22, L40, L55]true [105] L40-->L40: Formula: (and (= v_k_19 (+ v_k_20 1)) (< v_k_20 v_N_14) (= (+ (select v_B_16 v_k_20) (select v_A_16 v_k_20) v_res2_38) v_res2_37)) InVars {A=v_A_16, N=v_N_14, k=v_k_20, res2=v_res2_38, B=v_B_16} OutVars{A=v_A_16, N=v_N_14, k=v_k_19, res2=v_res2_37, B=v_B_16} AuxVars[] AssignedVars[k, res2] 169#[L31, L22, L40, L55]true [105] L40-->L40: Formula: (and (= v_k_19 (+ v_k_20 1)) (< v_k_20 v_N_14) (= (+ (select v_B_16 v_k_20) (select v_A_16 v_k_20) v_res2_38) v_res2_37)) InVars {A=v_A_16, N=v_N_14, k=v_k_20, res2=v_res2_38, B=v_B_16} OutVars{A=v_A_16, N=v_N_14, k=v_k_19, res2=v_res2_37, B=v_B_16} AuxVars[] AssignedVars[k, res2] 169#[L31, L22, L40, L55]true [2023-10-12 17:25:50,314 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:25:50,314 INFO L85 PathProgramCache]: Analyzing trace with hash 130958877, now seen corresponding path program 1 times [2023-10-12 17:25:50,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:25:50,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395484179] [2023-10-12 17:25:50,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:25:50,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:25:50,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:25:50,321 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:25:50,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:25:50,326 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:25:50,327 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:25:50,327 INFO L85 PathProgramCache]: Analyzing trace with hash 4321, now seen corresponding path program 2 times [2023-10-12 17:25:50,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:25:50,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201905622] [2023-10-12 17:25:50,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:25:50,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:25:50,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:25:50,331 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:25:50,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:25:50,335 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:25:50,335 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:25:50,335 INFO L85 PathProgramCache]: Analyzing trace with hash 1297432573, now seen corresponding path program 1 times [2023-10-12 17:25:50,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:25:50,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171923175] [2023-10-12 17:25:50,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:25:50,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:25:50,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:25:50,341 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:25:50,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:25:50,350 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:25:50,508 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:25:50,508 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:25:50,508 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:25:50,509 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:25:50,509 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-10-12 17:25:50,509 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:25:50,509 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:25:50,509 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:25:50,509 INFO L133 ssoRankerPreferences]: Filename of dumped script: array-sum.wvr.bpl_BEv2_Iteration4_Lasso [2023-10-12 17:25:50,509 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:25:50,519 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:25:50,520 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:25:50,526 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 17:25:50,557 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 17:25:50,559 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 17:25:50,562 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:25:50,565 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 17:25:50,570 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 17:25:50,572 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 17:25:50,576 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 17:25:50,692 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:25:50,692 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-10-12 17:25:50,692 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:25:50,692 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:25:50,693 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 17:25:50,706 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-10-12 17:25:50,713 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:25:50,714 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:25:50,714 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:25:50,714 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:25:50,716 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:25:50,717 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:25:50,720 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 17:25:50,728 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:25:50,740 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 17:25:50,740 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:25:50,741 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:25:50,742 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 17:25:50,745 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 17:25:50,746 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 17:25:50,752 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:25:50,753 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:25:50,753 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:25:50,753 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:25:50,756 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:25:50,756 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:25:50,772 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-10-12 17:25:50,786 INFO L443 ModelExtractionUtils]: Simplification made 11 calls to the SMT solver. [2023-10-12 17:25:50,786 INFO L444 ModelExtractionUtils]: 3 out of 13 variables were initially zero. Simplification set additionally 7 variables to zero. [2023-10-12 17:25:50,787 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:25:50,787 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:25:50,789 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 17:25:50,796 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 17:25:50,796 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-10-12 17:25:50,822 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2023-10-12 17:25:50,822 INFO L513 LassoAnalysis]: Proved termination. [2023-10-12 17:25:50,822 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(k, N) = -1*k + 1*N Supporting invariants [] [2023-10-12 17:25:50,828 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 17:25:50,830 INFO L156 tatePredicateManager]: 1 out of 1 supporting invariants were superfluous and have been removed [2023-10-12 17:25:50,842 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:25:50,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:25:50,851 INFO L262 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 2 conjunts are in the unsatisfiable core [2023-10-12 17:25:50,852 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:25:50,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:25:50,861 INFO L262 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 5 conjunts are in the unsatisfiable core [2023-10-12 17:25:50,861 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:25:50,870 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-10-12 17:25:50,871 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2023-10-12 17:25:50,871 INFO L74 BuchiComplementNCSB]: Start buchiComplementNCSB. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-10-12 17:25:50,980 INFO L82 BuchiComplementNCSB]: Finished buchiComplementNCSB. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 7 states and 386 transitions. [2023-10-12 17:25:50,980 INFO L79 BuchiIntersect]: Starting Intersection [2023-10-12 17:25:50,997 INFO L86 BuchiIntersect]: Exiting Intersection [2023-10-12 17:25:50,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-10-12 17:25:50,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-10-12 17:25:50,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 250 transitions. [2023-10-12 17:25:50,999 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 250 transitions. Stem has 5 letters. Loop has 2 letters. [2023-10-12 17:25:50,999 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:25:50,999 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 250 transitions. Stem has 7 letters. Loop has 2 letters. [2023-10-12 17:25:50,999 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:25:50,999 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 250 transitions. Stem has 5 letters. Loop has 4 letters. [2023-10-12 17:25:51,000 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:25:51,000 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 52 places, 3326 transitions, 36524 flow [2023-10-12 17:25:51,313 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2023-10-12 17:25:51,382 INFO L124 PetriNetUnfolderBase]: 983/1477 cut-off events. [2023-10-12 17:25:51,382 INFO L125 PetriNetUnfolderBase]: For 340/340 co-relation queries the response was YES. [2023-10-12 17:25:51,384 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7720 conditions, 1477 events. 983/1477 cut-off events. For 340/340 co-relation queries the response was YES. Maximal size of possible extension queue 128. Compared 6499 event pairs, 28 based on Foata normal form. 0/805 useless extension candidates. Maximal degree in co-relation 5440. Up to 1280 conditions per place. [2023-10-12 17:25:51,385 INFO L82 GeneralOperation]: Start removeDeadBuchi. Operand has 52 places, 3326 transitions, 36524 flow [2023-10-12 17:25:51,427 INFO L88 GeneralOperation]: Finished RemoveDeadBuchi, result has has 52 places, 3326 transitions, 36524 flow [2023-10-12 17:25:51,427 INFO L430 stractBuchiCegarLoop]: Abstraction has has 52 places, 3326 transitions, 36524 flow [2023-10-12 17:25:51,428 INFO L337 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2023-10-12 17:25:51,428 INFO L84 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 52 places, 3326 transitions, 36524 flow [2023-10-12 17:25:51,826 INFO L124 PetriNetUnfolderBase]: 983/1477 cut-off events. [2023-10-12 17:25:51,827 INFO L125 PetriNetUnfolderBase]: For 340/340 co-relation queries the response was YES. [2023-10-12 17:25:51,827 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty language is empty [2023-10-12 17:25:51,832 INFO L201 PluginConnector]: Adding new model array-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 12.10 05:25:51 BoogieIcfgContainer [2023-10-12 17:25:51,832 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-10-12 17:25:51,832 INFO L158 Benchmark]: Toolchain (without parser) took 4490.70ms. Allocated memory was 219.2MB in the beginning and 337.6MB in the end (delta: 118.5MB). Free memory was 170.9MB in the beginning and 196.7MB in the end (delta: -25.8MB). Peak memory consumption was 164.0MB. Max. memory is 8.0GB. [2023-10-12 17:25:51,833 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.24ms. Allocated memory is still 219.2MB. Free memory was 172.1MB in the beginning and 171.9MB in the end (delta: 139.9kB). There was no memory consumed. Max. memory is 8.0GB. [2023-10-12 17:25:51,833 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.65ms. Allocated memory is still 219.2MB. Free memory was 170.8MB in the beginning and 169.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-10-12 17:25:51,834 INFO L158 Benchmark]: Boogie Preprocessor took 21.53ms. Allocated memory is still 219.2MB. Free memory was 169.2MB in the beginning and 168.1MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-10-12 17:25:51,834 INFO L158 Benchmark]: RCFGBuilder took 223.69ms. Allocated memory is still 219.2MB. Free memory was 168.1MB in the beginning and 158.7MB in the end (delta: 9.5MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2023-10-12 17:25:51,834 INFO L158 Benchmark]: BuchiAutomizer took 4214.99ms. Allocated memory was 219.2MB in the beginning and 337.6MB in the end (delta: 118.5MB). Free memory was 158.5MB in the beginning and 196.7MB in the end (delta: -38.1MB). Peak memory consumption was 151.4MB. Max. memory is 8.0GB. [2023-10-12 17:25:51,836 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 0.24ms. Allocated memory is still 219.2MB. Free memory was 172.1MB in the beginning and 171.9MB in the end (delta: 139.9kB). There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 25.65ms. Allocated memory is still 219.2MB. Free memory was 170.8MB in the beginning and 169.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 21.53ms. Allocated memory is still 219.2MB. Free memory was 169.2MB in the beginning and 168.1MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 223.69ms. Allocated memory is still 219.2MB. Free memory was 168.1MB in the beginning and 158.7MB in the end (delta: 9.5MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * BuchiAutomizer took 4214.99ms. Allocated memory was 219.2MB in the beginning and 337.6MB in the end (delta: 118.5MB). Free memory was 158.5MB in the beginning and 196.7MB in the end (delta: -38.1MB). Peak memory consumption was 151.4MB. 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 4 terminating modules (1 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 5 locations. One deterministic module has affine ranking function -1 * k + N and consists of 5 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.1s and 5 iterations. TraceHistogramMax:0. Analysis of lassos took 1.6s. Construction of modules took 0.2s. Büchi inclusion checks took 0.6s. Highest rank in rank-based complementation 0. Minimization of det autom 0. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [3, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 2/2 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 364 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 361 mSDsluCounter, 324 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 140 mSDsCounter, 14 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 392 IncrementalHoareTripleChecker+Invalid, 406 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 14 mSolverCounterUnsat, 184 mSDtfsCounter, 392 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU1 SILI0 SILT0 lasso3 LassoPreprocessingBenchmarks: Lassos: inital63 mio100 ax100 hnf100 lsp74 ukn78 mio100 lsp64 div100 bol100 ite100 ukn100 eq156 hnf92 smp100 dnf100 smp100 tf100 neg100 sie112 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 130ms VariablesStem: 4 VariablesLoop: 3 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.4s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.4s, 36 PlacesBefore, 22 PlacesAfterwards, 29 TransitionsBefore, 15 TransitionsAfterwards, 210 CoEnabledTransitionPairs, 2 FixpointIterations, 6 TrivialSequentialCompositions, 9 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 15 TotalNumberOfCompositions, 138 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 138, independent: 138, independent conditional: 0, independent unconditional: 138, 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: 120, independent: 120, independent conditional: 0, independent unconditional: 120, 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: 120, independent: 118, independent conditional: 0, independent unconditional: 118, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 2, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 16, independent: 16, independent conditional: 0, independent unconditional: 16, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 138, independent: 18, independent conditional: 0, independent unconditional: 18, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 120, unknown conditional: 0, unknown unconditional: 120] , 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 17:25:51,853 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...