/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-bad/dot-product-alt.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.fs.rabin-petrinet-4c29625-m [2023-10-12 17:25:22,440 INFO L172 SettingsManager]: Resetting all preferences to default values... [2023-10-12 17:25:22,498 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 17:25:22,520 INFO L114 SettingsManager]: Preferences different from defaults after loading the file: [2023-10-12 17:25:22,520 INFO L135 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-10-12 17:25:22,521 INFO L137 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-10-12 17:25:22,521 INFO L135 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-10-12 17:25:22,522 INFO L137 SettingsManager]: * Create parallel compositions if possible=false [2023-10-12 17:25:22,522 INFO L137 SettingsManager]: * Use SBE=true [2023-10-12 17:25:22,522 INFO L135 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-10-12 17:25:22,522 INFO L137 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-10-12 17:25:22,523 INFO L137 SettingsManager]: * Use old map elimination=false [2023-10-12 17:25:22,523 INFO L137 SettingsManager]: * Use external solver (rank synthesis)=false [2023-10-12 17:25:22,523 INFO L137 SettingsManager]: * Use only trivial implications for array writes=true [2023-10-12 17:25:22,523 INFO L137 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-10-12 17:25:22,524 INFO L135 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-10-12 17:25:22,524 INFO L137 SettingsManager]: * sizeof long=4 [2023-10-12 17:25:22,524 INFO L137 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-10-12 17:25:22,527 INFO L137 SettingsManager]: * Overapproximate operations on floating types=true [2023-10-12 17:25:22,527 INFO L137 SettingsManager]: * sizeof POINTER=4 [2023-10-12 17:25:22,527 INFO L137 SettingsManager]: * Check division by zero=IGNORE [2023-10-12 17:25:22,531 INFO L137 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-10-12 17:25:22,531 INFO L137 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-10-12 17:25:22,531 INFO L137 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-10-12 17:25:22,531 INFO L137 SettingsManager]: * sizeof long double=12 [2023-10-12 17:25:22,531 INFO L137 SettingsManager]: * Check if freed pointer was valid=false [2023-10-12 17:25:22,531 INFO L137 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-10-12 17:25:22,532 INFO L137 SettingsManager]: * Use constant arrays=true [2023-10-12 17:25:22,532 INFO L137 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-10-12 17:25:22,532 INFO L135 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-10-12 17:25:22,532 INFO L137 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-10-12 17:25:22,532 INFO L135 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-10-12 17:25:22,533 INFO L137 SettingsManager]: * Trace refinement strategy=CAMEL [2023-10-12 17:25:22,533 INFO L135 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-10-12 17:25:22,534 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: Automaton type for concurrent programs -> BUCHI_PETRI_NET [2023-10-12 17:25:22,716 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-10-12 17:25:22,739 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-10-12 17:25:22,741 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-10-12 17:25:22,743 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2023-10-12 17:25:22,743 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2023-10-12 17:25:22,744 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-bad/dot-product-alt.wvr.bpl [2023-10-12 17:25:22,745 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-bad/dot-product-alt.wvr.bpl' [2023-10-12 17:25:22,774 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-10-12 17:25:22,775 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2023-10-12 17:25:22,776 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-10-12 17:25:22,776 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-10-12 17:25:22,776 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-10-12 17:25:22,787 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:25:22" (1/1) ... [2023-10-12 17:25:22,795 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:25:22" (1/1) ... [2023-10-12 17:25:22,799 INFO L138 Inliner]: procedures = 4, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2023-10-12 17:25:22,800 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-10-12 17:25:22,802 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-10-12 17:25:22,802 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-10-12 17:25:22,803 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-10-12 17:25:22,809 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:25:22" (1/1) ... [2023-10-12 17:25:22,810 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:25:22" (1/1) ... [2023-10-12 17:25:22,812 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:25:22" (1/1) ... [2023-10-12 17:25:22,812 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:25:22" (1/1) ... [2023-10-12 17:25:22,817 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:25:22" (1/1) ... [2023-10-12 17:25:22,820 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:25:22" (1/1) ... [2023-10-12 17:25:22,820 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:25:22" (1/1) ... [2023-10-12 17:25:22,821 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:25:22" (1/1) ... [2023-10-12 17:25:22,825 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-10-12 17:25:22,826 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-10-12 17:25:22,826 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-10-12 17:25:22,826 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-10-12 17:25:22,827 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:25:22" (1/1) ... [2023-10-12 17:25:22,832 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:25:22,838 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:25:22,875 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 17:25:22,898 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 17:25:22,913 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2023-10-12 17:25:22,914 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-10-12 17:25:22,914 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-10-12 17:25:22,914 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2023-10-12 17:25:22,914 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-10-12 17:25:22,914 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-10-12 17:25:22,914 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2023-10-12 17:25:22,915 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-10-12 17:25:22,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-10-12 17:25:22,915 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2023-10-12 17:25:22,915 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-10-12 17:25:22,915 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-10-12 17:25:22,946 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 17:25:22,998 INFO L236 CfgBuilder]: Building ICFG [2023-10-12 17:25:23,000 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-10-12 17:25:23,075 INFO L277 CfgBuilder]: Performing block encoding [2023-10-12 17:25:23,080 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-10-12 17:25:23,080 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-10-12 17:25:23,082 INFO L201 PluginConnector]: Adding new model dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:25:23 BoogieIcfgContainer [2023-10-12 17:25:23,082 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-10-12 17:25:23,082 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-10-12 17:25:23,083 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-10-12 17:25:23,085 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-10-12 17:25:23,085 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-10-12 17:25:23,086 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:25:22" (1/2) ... [2023-10-12 17:25:23,087 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3cdcee27 and model type dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 12.10 05:25:23, skipping insertion in model container [2023-10-12 17:25:23,087 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-10-12 17:25:23,087 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:25:23" (2/2) ... [2023-10-12 17:25:23,088 INFO L332 chiAutomizerObserver]: Analyzing ICFG dot-product-alt.wvr.bpl [2023-10-12 17:25:23,128 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-10-12 17:25:23,146 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 39 places, 35 transitions, 94 flow [2023-10-12 17:25:23,161 INFO L124 PetriNetUnfolderBase]: 3/29 cut-off events. [2023-10-12 17:25:23,162 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-10-12 17:25:23,178 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 5. Compared 41 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 17:25:23,178 INFO L82 GeneralOperation]: Start removeDead. Operand has 39 places, 35 transitions, 94 flow [2023-10-12 17:25:23,181 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 36 places, 29 transitions, 76 flow [2023-10-12 17:25:23,183 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-10-12 17:25:23,192 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 36 places, 29 transitions, 76 flow [2023-10-12 17:25:23,194 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 36 places, 29 transitions, 76 flow [2023-10-12 17:25:23,194 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 36 places, 29 transitions, 76 flow [2023-10-12 17:25:23,199 INFO L124 PetriNetUnfolderBase]: 3/29 cut-off events. [2023-10-12 17:25:23,199 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-10-12 17:25:23,200 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 5. Compared 41 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 17:25:23,200 INFO L119 LiptonReduction]: Number of co-enabled transitions 210 [2023-10-12 17:25:23,450 INFO L134 LiptonReduction]: Checked pairs total: 156 [2023-10-12 17:25:23,450 INFO L136 LiptonReduction]: Total number of compositions: 15 [2023-10-12 17:25:23,459 INFO L305 stractBuchiCegarLoop]: Interprodecural is true [2023-10-12 17:25:23,459 INFO L306 stractBuchiCegarLoop]: Hoare is false [2023-10-12 17:25:23,459 INFO L307 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-10-12 17:25:23,459 INFO L308 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-10-12 17:25:23,459 INFO L309 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-10-12 17:25:23,459 INFO L310 stractBuchiCegarLoop]: Difference is false [2023-10-12 17:25:23,460 INFO L311 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-10-12 17:25:23,460 INFO L315 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiPetriNetCegarLoop ======== [2023-10-12 17:25:23,460 INFO L84 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 22 places, 15 transitions, 48 flow [2023-10-12 17:25:23,463 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-10-12 17:25:23,463 INFO L124 PetriNetUnfolderBase]: 0/2 cut-off events. [2023-10-12 17:25:23,463 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-10-12 17:25:23,463 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty language is not empty [2023-10-12 17:25:23,465 INFO L337 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-10-12 17:25:23,465 INFO L84 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 22 places, 15 transitions, 48 flow [2023-10-12 17:25:23,466 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-10-12 17:25:23,466 INFO L124 PetriNetUnfolderBase]: 0/2 cut-off events. [2023-10-12 17:25:23,466 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-10-12 17:25:23,466 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty language is not empty [2023-10-12 17:25:23,470 INFO L748 eck$LassoCheckResult]: Stem: 43#[$Ultimate##0]true [108] $Ultimate##0-->L54: Formula: (and (= v_i_19 v_res1_21) (< v_M_20 v_N_26) (= v_i_19 v_j_23) (= v_i_19 0) (<= 0 v_M_20) (= v_i_19 v_res2_43) (= v_M_20 v_k_19)) InVars {N=v_N_26, M=v_M_20, k=v_k_19, res1=v_res1_21, j=v_j_23, i=v_i_19, res2=v_res2_43} OutVars{N=v_N_26, M=v_M_20, k=v_k_19, res1=v_res1_21, j=v_j_23, i=v_i_19, res2=v_res2_43} AuxVars[] AssignedVars[] 45#[L54]true [84] L54-->L23: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0] 47#[L23, L54-1]true [2023-10-12 17:25:23,470 INFO L750 eck$LassoCheckResult]: Loop: 47#[L23, L54-1]true [105] L23-->L23: Formula: (and (= v_i_15 (+ v_i_16 1)) (< v_i_16 v_N_22) (= (+ (select (select v_mult_14 (select v_A_14 v_i_16)) (select v_B_14 v_i_16)) v_res1_18) v_res1_17)) InVars {A=v_A_14, N=v_N_22, res1=v_res1_18, mult=v_mult_14, i=v_i_16, B=v_B_14} OutVars{A=v_A_14, N=v_N_22, res1=v_res1_17, mult=v_mult_14, i=v_i_15, B=v_B_14} AuxVars[] AssignedVars[res1, i] 47#[L23, L54-1]true [2023-10-12 17:25:23,474 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:25:23,474 INFO L85 PathProgramCache]: Analyzing trace with hash 4393, now seen corresponding path program 1 times [2023-10-12 17:25:23,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:25:23,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905954023] [2023-10-12 17:25:23,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:25:23,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:25:23,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:25:23,535 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:25:23,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:25:23,549 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:25:23,551 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:25:23,551 INFO L85 PathProgramCache]: Analyzing trace with hash 136, now seen corresponding path program 1 times [2023-10-12 17:25:23,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:25:23,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068718280] [2023-10-12 17:25:23,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:25:23,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:25:23,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:25:23,558 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:25:23,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:25:23,562 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:25:23,563 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:25:23,563 INFO L85 PathProgramCache]: Analyzing trace with hash 136288, now seen corresponding path program 1 times [2023-10-12 17:25:23,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:25:23,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275577942] [2023-10-12 17:25:23,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:25:23,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:25:23,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:25:23,572 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:25:23,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:25:23,578 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:25:23,664 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:25:23,664 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:25:23,664 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:25:23,664 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:25:23,665 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-10-12 17:25:23,665 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:25:23,665 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:25:23,665 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:25:23,665 INFO L133 ssoRankerPreferences]: Filename of dumped script: dot-product-alt.wvr.bpl_BEv2_Iteration1_Lasso [2023-10-12 17:25:23,665 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:25:23,665 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:25:23,675 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 17:25:23,682 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:25:23,684 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 17:25:23,686 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 17:25:23,770 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:25:23,773 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-10-12 17:25:23,774 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:25:23,774 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:25:23,776 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 17:25:23,792 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-10-12 17:25:23,800 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:25:23,800 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:25:23,800 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:25:23,800 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:25:23,803 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:25:23,803 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:25:23,807 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 17:25:23,816 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:25:23,822 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2023-10-12 17:25:23,823 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:25:23,823 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:25:23,824 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 17:25:23,833 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 17:25:23,841 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:25:23,841 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:25:23,841 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:25:23,841 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:25:23,843 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:25:23,843 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:25:23,846 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 17:25:23,861 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:25:23,867 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 17:25:23,867 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:25:23,867 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:25:23,868 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 17:25:23,888 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 17:25:23,895 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:25:23,895 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:25:23,895 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:25:23,895 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:25:23,897 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:25:23,897 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:25:23,900 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 17:25:23,909 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:25:23,931 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 17:25:23,931 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:25:23,932 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:25:23,945 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 17:25:23,948 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 17:25:23,949 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 17:25:23,957 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:25:23,957 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:25:23,957 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:25:23,957 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:25:23,962 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:25:23,962 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:25:23,977 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-10-12 17:25:23,987 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2023-10-12 17:25:23,987 INFO L444 ModelExtractionUtils]: 8 out of 16 variables were initially zero. Simplification set additionally 5 variables to zero. [2023-10-12 17:25:23,988 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:25:23,988 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:25:23,990 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 17:25:23,991 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 17:25:23,993 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-10-12 17:25:24,026 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2023-10-12 17:25:24,026 INFO L513 LassoAnalysis]: Proved termination. [2023-10-12 17:25:24,026 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(i, N) = -1*i + 1*N Supporting invariants [] [2023-10-12 17:25:24,040 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 17:25:24,042 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-10-12 17:25:24,057 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:25:24,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:25:24,066 INFO L262 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 2 conjunts are in the unsatisfiable core [2023-10-12 17:25:24,067 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:25:24,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:25:24,077 WARN L260 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2023-10-12 17:25:24,077 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:25:24,077 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 17:25:24,098 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 17:25:24,099 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 17:25:24,174 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 17:25:24,175 INFO L79 BuchiIntersect]: Starting Intersection [2023-10-12 17:25:24,177 INFO L86 BuchiIntersect]: Exiting Intersection [2023-10-12 17:25:24,178 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 17:25:24,182 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 17:25:24,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 200 transitions. [2023-10-12 17:25:24,185 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 200 transitions. Stem has 2 letters. Loop has 1 letters. [2023-10-12 17:25:24,186 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:25:24,186 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 200 transitions. Stem has 3 letters. Loop has 1 letters. [2023-10-12 17:25:24,186 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:25:24,186 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 200 transitions. Stem has 2 letters. Loop has 2 letters. [2023-10-12 17:25:24,186 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:25:24,187 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 32 places, 172 transitions, 904 flow [2023-10-12 17:25:24,206 INFO L124 PetriNetUnfolderBase]: 135/207 cut-off events. [2023-10-12 17:25:24,207 INFO L125 PetriNetUnfolderBase]: For 60/60 co-relation queries the response was YES. [2023-10-12 17:25:24,207 INFO L83 FinitePrefix]: Finished finitePrefix Result has 486 conditions, 207 events. 135/207 cut-off events. For 60/60 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 556 event pairs, 12 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 17:25:24,207 INFO L82 GeneralOperation]: Start removeDeadBuchi. Operand has 32 places, 172 transitions, 904 flow [2023-10-12 17:25:24,210 INFO L88 GeneralOperation]: Finished RemoveDeadBuchi, result has has 32 places, 172 transitions, 904 flow [2023-10-12 17:25:24,210 INFO L430 stractBuchiCegarLoop]: Abstraction has has 32 places, 172 transitions, 904 flow [2023-10-12 17:25:24,211 INFO L337 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-10-12 17:25:24,211 INFO L84 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 32 places, 172 transitions, 904 flow [2023-10-12 17:25:24,215 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-10-12 17:25:24,216 INFO L124 PetriNetUnfolderBase]: 26/41 cut-off events. [2023-10-12 17:25:24,216 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-10-12 17:25:24,216 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty language is not empty [2023-10-12 17:25:24,216 INFO L748 eck$LassoCheckResult]: Stem: 43#[$Ultimate##0]true [108] $Ultimate##0-->L54: Formula: (and (= v_i_19 v_res1_21) (< v_M_20 v_N_26) (= v_i_19 v_j_23) (= v_i_19 0) (<= 0 v_M_20) (= v_i_19 v_res2_43) (= v_M_20 v_k_19)) InVars {N=v_N_26, M=v_M_20, k=v_k_19, res1=v_res1_21, j=v_j_23, i=v_i_19, res2=v_res2_43} OutVars{N=v_N_26, M=v_M_20, k=v_k_19, res1=v_res1_21, j=v_j_23, i=v_i_19, res2=v_res2_43} AuxVars[] AssignedVars[] 45#[L54]true [84] L54-->L23: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0] 47#[L23, L54-1]true [87] L54-1-->L32: Formula: (and (= 2 v_thread2Thread1of1ForFork1_thidvar1_2) (= 2 v_thread2Thread1of1ForFork1_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_2, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_thidvar0, thread2Thread1of1ForFork1_thidvar1] 92#[L32, L23, L55]true [2023-10-12 17:25:24,216 INFO L750 eck$LassoCheckResult]: Loop: 92#[L32, L23, L55]true [107] L32-->L32: Formula: (and (= v_j_19 (+ v_j_20 1)) (< v_j_20 v_M_18) (= v_res2_39 (+ (select (select v_mult_18 (select v_A_18 v_j_20)) (select v_B_18 v_j_20)) v_res2_40))) InVars {A=v_A_18, M=v_M_18, j=v_j_20, mult=v_mult_18, res2=v_res2_40, B=v_B_18} OutVars{A=v_A_18, M=v_M_18, j=v_j_19, mult=v_mult_18, res2=v_res2_39, B=v_B_18} AuxVars[] AssignedVars[j, res2] 92#[L32, L23, L55]true [107] L32-->L32: Formula: (and (= v_j_19 (+ v_j_20 1)) (< v_j_20 v_M_18) (= v_res2_39 (+ (select (select v_mult_18 (select v_A_18 v_j_20)) (select v_B_18 v_j_20)) v_res2_40))) InVars {A=v_A_18, M=v_M_18, j=v_j_20, mult=v_mult_18, res2=v_res2_40, B=v_B_18} OutVars{A=v_A_18, M=v_M_18, j=v_j_19, mult=v_mult_18, res2=v_res2_39, B=v_B_18} AuxVars[] AssignedVars[j, res2] 92#[L32, L23, L55]true [2023-10-12 17:25:24,217 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:25:24,217 INFO L85 PathProgramCache]: Analyzing trace with hash 136270, now seen corresponding path program 1 times [2023-10-12 17:25:24,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:25:24,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690141053] [2023-10-12 17:25:24,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:25:24,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:25:24,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:25:24,221 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:25:24,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:25:24,225 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:25:24,225 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:25:24,225 INFO L85 PathProgramCache]: Analyzing trace with hash 4385, now seen corresponding path program 1 times [2023-10-12 17:25:24,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:25:24,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165992852] [2023-10-12 17:25:24,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:25:24,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:25:24,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:25:24,231 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:25:24,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:25:24,235 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:25:24,236 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:25:24,236 INFO L85 PathProgramCache]: Analyzing trace with hash 130958894, now seen corresponding path program 1 times [2023-10-12 17:25:24,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:25:24,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775841364] [2023-10-12 17:25:24,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:25:24,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:25:24,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:25:24,243 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:25:24,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:25:24,251 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:25:24,331 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:25:24,332 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:25:24,332 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:25:24,332 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:25:24,332 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-10-12 17:25:24,332 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:25:24,332 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:25:24,332 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:25:24,332 INFO L133 ssoRankerPreferences]: Filename of dumped script: dot-product-alt.wvr.bpl_BEv2_Iteration2_Lasso [2023-10-12 17:25:24,332 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:25:24,332 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:25:24,333 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 17:25:24,361 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 17:25:24,363 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 17:25:24,365 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 17:25:24,367 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 17:25:24,369 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 17:25:24,439 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:25:24,440 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-10-12 17:25:24,440 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:25:24,440 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:25:24,441 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 17:25:24,443 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 17:25:24,445 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 17:25:24,452 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:25:24,452 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-10-12 17:25:24,452 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:25:24,453 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:25:24,453 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:25:24,453 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-10-12 17:25:24,453 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-10-12 17:25:24,459 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:25:24,463 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 17:25:24,463 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:25:24,463 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:25:24,464 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 17:25:24,467 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 17:25:24,468 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 17:25:24,475 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:25:24,475 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-10-12 17:25:24,476 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:25:24,476 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:25:24,476 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:25:24,476 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-10-12 17:25:24,476 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-10-12 17:25:24,485 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:25:24,489 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 17:25:24,493 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:25:24,494 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:25:24,537 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 17:25:24,538 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 17:25:24,539 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 17:25:24,546 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:25:24,546 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-10-12 17:25:24,547 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:25:24,547 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:25:24,547 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:25:24,547 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-10-12 17:25:24,547 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-10-12 17:25:24,549 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:25:24,571 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2023-10-12 17:25:24,571 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:25:24,571 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:25:24,572 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 17:25:24,594 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 17:25:24,594 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 17:25:24,601 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:25:24,602 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:25:24,602 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:25:24,602 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:25:24,613 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:25:24,613 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:25:24,629 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:25:24,657 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 17:25:24,657 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:25:24,658 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:25:24,660 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 17:25:24,661 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 17:25:24,664 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 17:25:24,671 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:25:24,671 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:25:24,671 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:25:24,671 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:25:24,676 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:25:24,676 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:25:24,694 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-10-12 17:25:24,706 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2023-10-12 17:25:24,706 INFO L444 ModelExtractionUtils]: 8 out of 16 variables were initially zero. Simplification set additionally 5 variables to zero. [2023-10-12 17:25:24,706 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:25:24,706 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:25:24,727 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 17:25:24,733 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-10-12 17:25:24,741 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 17:25:24,757 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2023-10-12 17:25:24,757 INFO L513 LassoAnalysis]: Proved termination. [2023-10-12 17:25:24,757 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(M, j) = 1*M - 1*j Supporting invariants [] [2023-10-12 17:25:24,777 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2023-10-12 17:25:24,780 INFO L156 tatePredicateManager]: 1 out of 1 supporting invariants were superfluous and have been removed [2023-10-12 17:25:24,795 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:25:24,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:25:24,806 INFO L262 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 2 conjunts are in the unsatisfiable core [2023-10-12 17:25:24,806 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:25:24,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:25:24,816 INFO L262 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 5 conjunts are in the unsatisfiable core [2023-10-12 17:25:24,816 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:25:24,827 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 17:25:24,828 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 17:25:24,828 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 17:25:24,960 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 384 transitions. [2023-10-12 17:25:24,960 INFO L79 BuchiIntersect]: Starting Intersection [2023-10-12 17:25:24,997 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 17:25:25,011 INFO L86 BuchiIntersect]: Exiting Intersection [2023-10-12 17:25:25,012 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 17:25:25,012 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 17:25:25,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 250 transitions. [2023-10-12 17:25:25,013 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 250 transitions. Stem has 3 letters. Loop has 2 letters. [2023-10-12 17:25:25,013 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:25:25,013 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 250 transitions. Stem has 5 letters. Loop has 2 letters. [2023-10-12 17:25:25,014 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:25:25,014 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 250 transitions. Stem has 3 letters. Loop has 4 letters. [2023-10-12 17:25:25,014 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:25:25,014 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 46 places, 2608 transitions, 19104 flow [2023-10-12 17:25:25,025 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2023-10-12 17:25:25,115 INFO L124 PetriNetUnfolderBase]: 383/568 cut-off events. [2023-10-12 17:25:25,116 INFO L125 PetriNetUnfolderBase]: For 161/161 co-relation queries the response was YES. [2023-10-12 17:25:25,119 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1875 conditions, 568 events. 383/568 cut-off events. For 161/161 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 2004 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 17:25:25,119 INFO L82 GeneralOperation]: Start removeDeadBuchi. Operand has 46 places, 2608 transitions, 19104 flow [2023-10-12 17:25:25,149 INFO L88 GeneralOperation]: Finished RemoveDeadBuchi, result has has 46 places, 2608 transitions, 19104 flow [2023-10-12 17:25:25,149 INFO L430 stractBuchiCegarLoop]: Abstraction has has 46 places, 2608 transitions, 19104 flow [2023-10-12 17:25:25,149 INFO L337 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-10-12 17:25:25,149 INFO L84 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 46 places, 2608 transitions, 19104 flow [2023-10-12 17:25:25,212 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-10-12 17:25:25,212 INFO L124 PetriNetUnfolderBase]: 173/245 cut-off events. [2023-10-12 17:25:25,212 INFO L125 PetriNetUnfolderBase]: For 67/67 co-relation queries the response was YES. [2023-10-12 17:25:25,212 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty language is not empty [2023-10-12 17:25:25,213 INFO L748 eck$LassoCheckResult]: Stem: 43#[$Ultimate##0]true [108] $Ultimate##0-->L54: Formula: (and (= v_i_19 v_res1_21) (< v_M_20 v_N_26) (= v_i_19 v_j_23) (= v_i_19 0) (<= 0 v_M_20) (= v_i_19 v_res2_43) (= v_M_20 v_k_19)) InVars {N=v_N_26, M=v_M_20, k=v_k_19, res1=v_res1_21, j=v_j_23, i=v_i_19, res2=v_res2_43} OutVars{N=v_N_26, M=v_M_20, k=v_k_19, res1=v_res1_21, j=v_j_23, i=v_i_19, res2=v_res2_43} AuxVars[] AssignedVars[] 45#[L54]true [84] L54-->L23: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0] 47#[L23, L54-1]true [101] L23-->thread1EXIT: Formula: (<= v_N_12 v_i_9) InVars {N=v_N_12, i=v_i_9} OutVars{N=v_N_12, i=v_i_9} AuxVars[] AssignedVars[] 149#[L54-1, thread1EXIT]true [87] L54-1-->L32: Formula: (and (= 2 v_thread2Thread1of1ForFork1_thidvar1_2) (= 2 v_thread2Thread1of1ForFork1_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_2, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_thidvar0, thread2Thread1of1ForFork1_thidvar1] 151#[L32, thread1EXIT, L55]true [90] L55-->L41: Formula: (and (= 3 v_thread3Thread1of1ForFork2_thidvar0_2) (= 3 v_thread3Thread1of1ForFork2_thidvar1_2) (= 3 v_thread3Thread1of1ForFork2_thidvar2_2)) InVars {} OutVars{thread3Thread1of1ForFork2_thidvar2=v_thread3Thread1of1ForFork2_thidvar2_2, thread3Thread1of1ForFork2_thidvar1=v_thread3Thread1of1ForFork2_thidvar1_2, thread3Thread1of1ForFork2_thidvar0=v_thread3Thread1of1ForFork2_thidvar0_2} AuxVars[] AssignedVars[thread3Thread1of1ForFork2_thidvar2, thread3Thread1of1ForFork2_thidvar1, thread3Thread1of1ForFork2_thidvar0] 153#[L32, L56, L41, thread1EXIT]true [2023-10-12 17:25:25,214 INFO L750 eck$LassoCheckResult]: Loop: 153#[L32, L56, L41, thread1EXIT]true [104] L41-->L41: Formula: (and (= v_k_13 (+ v_k_14 1)) (< v_k_14 v_N_20) (= (+ (select (select v_mult_12 (select v_A_12 v_k_14)) (select v_B_12 v_k_14)) v_res2_30) v_res2_29)) InVars {A=v_A_12, N=v_N_20, k=v_k_14, mult=v_mult_12, res2=v_res2_30, B=v_B_12} OutVars{A=v_A_12, N=v_N_20, k=v_k_13, mult=v_mult_12, res2=v_res2_29, B=v_B_12} AuxVars[] AssignedVars[k, res2] 153#[L32, L56, L41, thread1EXIT]true [104] L41-->L41: Formula: (and (= v_k_13 (+ v_k_14 1)) (< v_k_14 v_N_20) (= (+ (select (select v_mult_12 (select v_A_12 v_k_14)) (select v_B_12 v_k_14)) v_res2_30) v_res2_29)) InVars {A=v_A_12, N=v_N_20, k=v_k_14, mult=v_mult_12, res2=v_res2_30, B=v_B_12} OutVars{A=v_A_12, N=v_N_20, k=v_k_13, mult=v_mult_12, res2=v_res2_29, B=v_B_12} AuxVars[] AssignedVars[k, res2] 153#[L32, L56, L41, thread1EXIT]true [2023-10-12 17:25:25,214 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:25:25,214 INFO L85 PathProgramCache]: Analyzing trace with hash 130971711, now seen corresponding path program 1 times [2023-10-12 17:25:25,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:25:25,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829217916] [2023-10-12 17:25:25,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:25:25,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:25:25,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:25:25,271 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 17:25:25,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-10-12 17:25:25,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1829217916] [2023-10-12 17:25:25,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1829217916] provided 1 perfect and 0 imperfect interpolant sequences [2023-10-12 17:25:25,271 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-10-12 17:25:25,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-10-12 17:25:25,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720326992] [2023-10-12 17:25:25,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-10-12 17:25:25,273 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-10-12 17:25:25,274 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:25:25,274 INFO L85 PathProgramCache]: Analyzing trace with hash 4289, now seen corresponding path program 1 times [2023-10-12 17:25:25,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:25:25,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500372067] [2023-10-12 17:25:25,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:25:25,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:25:25,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:25:25,278 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:25:25,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:25:25,281 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:25:25,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-10-12 17:25:25,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-10-12 17:25:25,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-10-12 17:25:25,312 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 17:25:25,312 INFO L124 encePairwiseOnDemand]: Subtrahend is not yet constructed. Will not use universal subtrahend loopers optimization. [2023-10-12 17:25:25,313 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-10-12 17:25:25,512 INFO L124 PetriNetUnfolderBase]: 455/686 cut-off events. [2023-10-12 17:25:25,512 INFO L125 PetriNetUnfolderBase]: For 146/146 co-relation queries the response was YES. [2023-10-12 17:25:25,513 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2940 conditions, 686 events. 455/686 cut-off events. For 146/146 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 2519 event pairs, 10 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 17:25:25,517 INFO L140 encePairwiseOnDemand]: 46/50 looper letters, 169 selfloop transitions, 6 changer transitions 45/220 dead transitions. [2023-10-12 17:25:25,517 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 220 transitions, 1964 flow [2023-10-12 17:25:25,517 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 38 places, 220 transitions, 1964 flow [2023-10-12 17:25:25,550 INFO L124 PetriNetUnfolderBase]: 455/686 cut-off events. [2023-10-12 17:25:25,550 INFO L125 PetriNetUnfolderBase]: For 146/146 co-relation queries the response was YES. [2023-10-12 17:25:25,551 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2940 conditions, 686 events. 455/686 cut-off events. For 146/146 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 2508 event pairs, 10 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 17:25:25,551 INFO L82 GeneralOperation]: Start removeDeadBuchi. Operand has 38 places, 220 transitions, 1964 flow [2023-10-12 17:25:25,553 INFO L88 GeneralOperation]: Finished RemoveDeadBuchi, result has has 38 places, 220 transitions, 1964 flow [2023-10-12 17:25:25,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-10-12 17:25:25,554 INFO L430 stractBuchiCegarLoop]: Abstraction has has 38 places, 220 transitions, 1964 flow [2023-10-12 17:25:25,554 INFO L337 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-10-12 17:25:25,554 INFO L84 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 38 places, 220 transitions, 1964 flow [2023-10-12 17:25:25,572 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-10-12 17:25:25,573 INFO L124 PetriNetUnfolderBase]: 215/309 cut-off events. [2023-10-12 17:25:25,573 INFO L125 PetriNetUnfolderBase]: For 41/41 co-relation queries the response was YES. [2023-10-12 17:25:25,573 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty language is not empty [2023-10-12 17:25:25,573 INFO L748 eck$LassoCheckResult]: Stem: 43#[$Ultimate##0]true [108] $Ultimate##0-->L54: Formula: (and (= v_i_19 v_res1_21) (< v_M_20 v_N_26) (= v_i_19 v_j_23) (= v_i_19 0) (<= 0 v_M_20) (= v_i_19 v_res2_43) (= v_M_20 v_k_19)) InVars {N=v_N_26, M=v_M_20, k=v_k_19, res1=v_res1_21, j=v_j_23, i=v_i_19, res2=v_res2_43} OutVars{N=v_N_26, M=v_M_20, k=v_k_19, res1=v_res1_21, j=v_j_23, i=v_i_19, res2=v_res2_43} AuxVars[] AssignedVars[] 45#[L54]true [84] L54-->L23: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0] 47#[L23, L54-1]true [87] L54-1-->L32: 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#[L32, L23, L55]true [105] L23-->L23: Formula: (and (= v_i_15 (+ v_i_16 1)) (< v_i_16 v_N_22) (= (+ (select (select v_mult_14 (select v_A_14 v_i_16)) (select v_B_14 v_i_16)) v_res1_18) v_res1_17)) InVars {A=v_A_14, N=v_N_22, res1=v_res1_18, mult=v_mult_14, i=v_i_16, B=v_B_14} OutVars{A=v_A_14, N=v_N_22, res1=v_res1_17, mult=v_mult_14, i=v_i_15, B=v_B_14} AuxVars[] AssignedVars[res1, i] 92#[L32, L23, L55]true [90] L55-->L41: 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#[L32, L56, L23, L41]true [95] L32-->thread2EXIT: Formula: (<= v_M_8 v_j_9) InVars {M=v_M_8, j=v_j_9} OutVars{M=v_M_8, j=v_j_9} AuxVars[] AssignedVars[] 171#[L56, thread2EXIT, L23, L41]true [104] L41-->L41: Formula: (and (= v_k_13 (+ v_k_14 1)) (< v_k_14 v_N_20) (= (+ (select (select v_mult_12 (select v_A_12 v_k_14)) (select v_B_12 v_k_14)) v_res2_30) v_res2_29)) InVars {A=v_A_12, N=v_N_20, k=v_k_14, mult=v_mult_12, res2=v_res2_30, B=v_B_12} OutVars{A=v_A_12, N=v_N_20, k=v_k_13, mult=v_mult_12, res2=v_res2_29, B=v_B_12} AuxVars[] AssignedVars[k, res2] 171#[L56, thread2EXIT, L23, L41]true [2023-10-12 17:25:25,573 INFO L750 eck$LassoCheckResult]: Loop: 171#[L56, thread2EXIT, L23, L41]true [104] L41-->L41: Formula: (and (= v_k_13 (+ v_k_14 1)) (< v_k_14 v_N_20) (= (+ (select (select v_mult_12 (select v_A_12 v_k_14)) (select v_B_12 v_k_14)) v_res2_30) v_res2_29)) InVars {A=v_A_12, N=v_N_20, k=v_k_14, mult=v_mult_12, res2=v_res2_30, B=v_B_12} OutVars{A=v_A_12, N=v_N_20, k=v_k_13, mult=v_mult_12, res2=v_res2_29, B=v_B_12} AuxVars[] AssignedVars[k, res2] 171#[L56, thread2EXIT, L23, L41]true [104] L41-->L41: Formula: (and (= v_k_13 (+ v_k_14 1)) (< v_k_14 v_N_20) (= (+ (select (select v_mult_12 (select v_A_12 v_k_14)) (select v_B_12 v_k_14)) v_res2_30) v_res2_29)) InVars {A=v_A_12, N=v_N_20, k=v_k_14, mult=v_mult_12, res2=v_res2_30, B=v_B_12} OutVars{A=v_A_12, N=v_N_20, k=v_k_13, mult=v_mult_12, res2=v_res2_29, B=v_B_12} AuxVars[] AssignedVars[k, res2] 171#[L56, thread2EXIT, L23, L41]true [2023-10-12 17:25:25,574 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:25:25,574 INFO L85 PathProgramCache]: Analyzing trace with hash 1297372680, now seen corresponding path program 1 times [2023-10-12 17:25:25,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:25:25,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443622673] [2023-10-12 17:25:25,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:25:25,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:25:25,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:25:25,580 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:25:25,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:25:25,587 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:25:25,588 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:25:25,588 INFO L85 PathProgramCache]: Analyzing trace with hash 4289, now seen corresponding path program 2 times [2023-10-12 17:25:25,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:25:25,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078142588] [2023-10-12 17:25:25,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:25:25,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:25:25,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:25:25,592 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:25:25,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:25:25,595 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:25:25,595 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:25:25,596 INFO L85 PathProgramCache]: Analyzing trace with hash 1234632968, now seen corresponding path program 2 times [2023-10-12 17:25:25,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:25:25,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672540686] [2023-10-12 17:25:25,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:25:25,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:25:25,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:25:25,603 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:25:25,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:25:25,613 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:25:25,772 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:25:25,772 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:25:25,772 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:25:25,772 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:25:25,772 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-10-12 17:25:25,772 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:25:25,773 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:25:25,773 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:25:25,773 INFO L133 ssoRankerPreferences]: Filename of dumped script: dot-product-alt.wvr.bpl_BEv2_Iteration4_Lasso [2023-10-12 17:25:25,773 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:25:25,773 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:25:25,774 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 17:25:25,777 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 17:25:25,780 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 17:25:25,878 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 17:25:25,880 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 17:25:25,882 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 17:25:25,884 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 17:25:25,887 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 17:25:25,889 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 17:25:26,011 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:25:26,011 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-10-12 17:25:26,011 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:25:26,012 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:25:26,013 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:25:26,015 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2023-10-12 17:25:26,063 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 17:25:26,070 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:25:26,071 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:25:26,071 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:25:26,071 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:25:26,072 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:25:26,072 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:25:26,087 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:25:26,093 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2023-10-12 17:25:26,093 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:25:26,093 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:25:26,109 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:25:26,143 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 17:25:26,150 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:25:26,150 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:25:26,150 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:25:26,150 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:25:26,152 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:25:26,152 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:25:26,155 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2023-10-12 17:25:26,169 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:25:26,187 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2023-10-12 17:25:26,188 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:25:26,188 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:25:26,189 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:25:26,191 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2023-10-12 17:25:26,192 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 17:25:26,199 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:25:26,199 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:25:26,199 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:25:26,199 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:25:26,202 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:25:26,202 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:25:26,221 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-10-12 17:25:26,233 INFO L443 ModelExtractionUtils]: Simplification made 11 calls to the SMT solver. [2023-10-12 17:25:26,234 INFO L444 ModelExtractionUtils]: 3 out of 13 variables were initially zero. Simplification set additionally 7 variables to zero. [2023-10-12 17:25:26,234 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:25:26,234 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:25:26,253 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:25:26,285 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2023-10-12 17:25:26,285 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-10-12 17:25:26,294 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2023-10-12 17:25:26,294 INFO L513 LassoAnalysis]: Proved termination. [2023-10-12 17:25:26,294 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(k, N) = -1*k + 1*N Supporting invariants [] [2023-10-12 17:25:26,298 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2023-10-12 17:25:26,304 INFO L156 tatePredicateManager]: 1 out of 1 supporting invariants were superfluous and have been removed [2023-10-12 17:25:26,322 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:25:26,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:25:26,333 INFO L262 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 2 conjunts are in the unsatisfiable core [2023-10-12 17:25:26,333 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:25:26,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:25:26,345 INFO L262 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 5 conjunts are in the unsatisfiable core [2023-10-12 17:25:26,346 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:25:26,353 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 17:25:26,353 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 17:25:26,353 INFO L74 BuchiComplementNCSB]: Start buchiComplementNCSB. Operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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 17:25:26,394 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2023-10-12 17:25:26,474 INFO L82 BuchiComplementNCSB]: Finished buchiComplementNCSB. Operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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 385 transitions. [2023-10-12 17:25:26,474 INFO L79 BuchiIntersect]: Starting Intersection [2023-10-12 17:25:26,489 INFO L86 BuchiIntersect]: Exiting Intersection [2023-10-12 17:25:26,489 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 17:25:26,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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 17:25:26,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 250 transitions. [2023-10-12 17:25:26,491 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 250 transitions. Stem has 7 letters. Loop has 2 letters. [2023-10-12 17:25:26,491 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:25:26,491 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 250 transitions. Stem has 9 letters. Loop has 2 letters. [2023-10-12 17:25:26,491 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:25:26,491 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 250 transitions. Stem has 7 letters. Loop has 4 letters. [2023-10-12 17:25:26,492 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:25:26,492 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 52 places, 3326 transitions, 36524 flow [2023-10-12 17:25:26,927 INFO L124 PetriNetUnfolderBase]: 1380/2078 cut-off events. [2023-10-12 17:25:26,927 INFO L125 PetriNetUnfolderBase]: For 476/476 co-relation queries the response was YES. [2023-10-12 17:25:26,930 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10799 conditions, 2078 events. 1380/2078 cut-off events. For 476/476 co-relation queries the response was YES. Maximal size of possible extension queue 176. Compared 9795 event pairs, 10 based on Foata normal form. 0/1137 useless extension candidates. Maximal degree in co-relation 7055. Up to 1788 conditions per place. [2023-10-12 17:25:26,930 INFO L82 GeneralOperation]: Start removeDeadBuchi. Operand has 52 places, 3326 transitions, 36524 flow [2023-10-12 17:25:26,965 INFO L88 GeneralOperation]: Finished RemoveDeadBuchi, result has has 52 places, 3326 transitions, 36524 flow [2023-10-12 17:25:26,966 INFO L430 stractBuchiCegarLoop]: Abstraction has has 52 places, 3326 transitions, 36524 flow [2023-10-12 17:25:26,966 INFO L337 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2023-10-12 17:25:26,966 INFO L84 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 52 places, 3326 transitions, 36524 flow [2023-10-12 17:25:27,366 INFO L124 PetriNetUnfolderBase]: 1380/2078 cut-off events. [2023-10-12 17:25:27,366 INFO L125 PetriNetUnfolderBase]: For 476/476 co-relation queries the response was YES. [2023-10-12 17:25:27,366 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty language is empty [2023-10-12 17:25:27,371 INFO L201 PluginConnector]: Adding new model dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 12.10 05:25:27 BoogieIcfgContainer [2023-10-12 17:25:27,371 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-10-12 17:25:27,372 INFO L158 Benchmark]: Toolchain (without parser) took 4596.50ms. Allocated memory was 201.3MB in the beginning and 291.5MB in the end (delta: 90.2MB). Free memory was 151.0MB in the beginning and 188.2MB in the end (delta: -37.2MB). Peak memory consumption was 169.7MB. Max. memory is 8.0GB. [2023-10-12 17:25:27,372 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.31ms. Allocated memory is still 201.3MB. Free memory was 152.2MB in the beginning and 152.0MB in the end (delta: 134.2kB). There was no memory consumed. Max. memory is 8.0GB. [2023-10-12 17:25:27,372 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.31ms. Allocated memory is still 201.3MB. Free memory was 150.9MB in the beginning and 149.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-10-12 17:25:27,372 INFO L158 Benchmark]: Boogie Preprocessor took 23.58ms. Allocated memory is still 201.3MB. Free memory was 149.3MB in the beginning and 148.3MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-10-12 17:25:27,373 INFO L158 Benchmark]: RCFGBuilder took 255.86ms. Allocated memory is still 201.3MB. Free memory was 148.3MB in the beginning and 165.0MB in the end (delta: -16.7MB). Peak memory consumption was 10.9MB. Max. memory is 8.0GB. [2023-10-12 17:25:27,373 INFO L158 Benchmark]: BuchiAutomizer took 4288.68ms. Allocated memory was 201.3MB in the beginning and 291.5MB in the end (delta: 90.2MB). Free memory was 165.0MB in the beginning and 188.2MB in the end (delta: -23.2MB). Peak memory consumption was 183.0MB. Max. memory is 8.0GB. [2023-10-12 17:25:27,374 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 0.31ms. Allocated memory is still 201.3MB. Free memory was 152.2MB in the beginning and 152.0MB in the end (delta: 134.2kB). There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 24.31ms. Allocated memory is still 201.3MB. Free memory was 150.9MB in the beginning and 149.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 23.58ms. Allocated memory is still 201.3MB. Free memory was 149.3MB in the beginning and 148.3MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 255.86ms. Allocated memory is still 201.3MB. Free memory was 148.3MB in the beginning and 165.0MB in the end (delta: -16.7MB). Peak memory consumption was 10.9MB. Max. memory is 8.0GB. * BuchiAutomizer took 4288.68ms. Allocated memory was 201.3MB in the beginning and 291.5MB in the end (delta: 90.2MB). Free memory was 165.0MB in the beginning and 188.2MB in the end (delta: -23.2MB). Peak memory consumption was 183.0MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 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 4.2s and 5 iterations. TraceHistogramMax:0. Analysis of lassos took 1.9s. Construction of modules took 0.1s. 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, 365 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 362 mSDsluCounter, 324 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 140 mSDsCounter, 15 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 391 IncrementalHoareTripleChecker+Invalid, 406 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 15 mSolverCounterUnsat, 184 mSDtfsCounter, 391 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU1 SILI0 SILT0 lasso3 LassoPreprocessingBenchmarks: Lassos: inital75 mio100 ax100 hnf100 lsp78 ukn72 mio100 lsp62 div100 bol100 ite100 ukn100 eq176 hnf91 smp100 dnf100 smp100 tf100 neg100 sie107 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 42ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.3s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.3s, 36 PlacesBefore, 22 PlacesAfterwards, 29 TransitionsBefore, 15 TransitionsAfterwards, 210 CoEnabledTransitionPairs, 3 FixpointIterations, 6 TrivialSequentialCompositions, 9 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 15 TotalNumberOfCompositions, 156 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 156, independent: 156, independent conditional: 0, independent unconditional: 156, 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: 9, independent: 9, independent conditional: 0, independent unconditional: 9, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 156, independent: 36, independent conditional: 0, independent unconditional: 36, 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 17:25:27,385 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...