/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/buchiAutomizer/concurrent-buchi-pn-semanticLbe.epf -i ../../../trunk/examples/concurrent/bpl/equal-array-sums.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.fs.omega-petrinet-ed1a3e5-m [2022-09-29 14:47:53,423 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-29 14:47:53,424 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-29 14:47:53,446 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-09-29 14:47:53,446 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-09-29 14:47:53,448 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-09-29 14:47:53,450 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-09-29 14:47:53,453 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-09-29 14:47:53,454 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-09-29 14:47:53,455 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-09-29 14:47:53,455 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-09-29 14:47:53,456 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-09-29 14:47:53,456 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-29 14:47:53,457 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-29 14:47:53,458 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-29 14:47:53,458 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-29 14:47:53,459 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-29 14:47:53,459 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-29 14:47:53,460 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-29 14:47:53,461 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-29 14:47:53,462 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-29 14:47:53,471 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-29 14:47:53,474 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-29 14:47:53,475 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-29 14:47:53,478 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-09-29 14:47:53,482 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-29 14:47:53,483 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-29 14:47:53,483 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-29 14:47:53,487 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/buchiAutomizer/concurrent-buchi-pn-semanticLbe.epf [2022-09-29 14:47:53,518 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-29 14:47:53,518 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-29 14:47:53,518 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-09-29 14:47:53,518 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-09-29 14:47:53,519 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-29 14:47:53,519 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-29 14:47:53,519 INFO L138 SettingsManager]: * Use SBE=true [2022-09-29 14:47:53,519 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-09-29 14:47:53,519 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-09-29 14:47:53,520 INFO L138 SettingsManager]: * Use old map elimination=false [2022-09-29 14:47:53,520 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-09-29 14:47:53,520 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-09-29 14:47:53,520 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-09-29 14:47:53,520 INFO L138 SettingsManager]: * Automaton type for concurrent programs=BUCHI_PETRI_NET [2022-09-29 14:47:53,520 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-29 14:47:53,520 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-29 14:47:53,520 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-09-29 14:47:53,520 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-29 14:47:53,520 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-29 14:47:53,520 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-29 14:47:53,520 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-09-29 14:47:53,521 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-09-29 14:47:53,521 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-09-29 14:47:53,521 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-29 14:47:53,521 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-29 14:47:53,521 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-09-29 14:47:53,521 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-29 14:47:53,521 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-09-29 14:47:53,521 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-29 14:47:53,521 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-29 14:47:53,521 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-29 14:47:53,522 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-29 14:47:53,522 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-09-29 14:47:53,522 INFO L138 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-09-29 14:47:53,708 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-29 14:47:53,723 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-29 14:47:53,725 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-29 14:47:53,726 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-09-29 14:47:53,727 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-09-29 14:47:53,727 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/equal-array-sums.bpl [2022-09-29 14:47:53,728 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/equal-array-sums.bpl' [2022-09-29 14:47:53,741 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-29 14:47:53,742 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-09-29 14:47:53,743 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-09-29 14:47:53,743 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-09-29 14:47:53,743 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-09-29 14:47:53,751 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "equal-array-sums.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 02:47:53" (1/1) ... [2022-09-29 14:47:53,755 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "equal-array-sums.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 02:47:53" (1/1) ... [2022-09-29 14:47:53,759 INFO L137 Inliner]: procedures = 3, calls = 2, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-09-29 14:47:53,760 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-09-29 14:47:53,761 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-29 14:47:53,762 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-29 14:47:53,762 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-29 14:47:53,767 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "equal-array-sums.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 02:47:53" (1/1) ... [2022-09-29 14:47:53,767 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "equal-array-sums.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 02:47:53" (1/1) ... [2022-09-29 14:47:53,767 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "equal-array-sums.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 02:47:53" (1/1) ... [2022-09-29 14:47:53,767 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "equal-array-sums.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 02:47:53" (1/1) ... [2022-09-29 14:47:53,769 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "equal-array-sums.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 02:47:53" (1/1) ... [2022-09-29 14:47:53,771 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "equal-array-sums.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 02:47:53" (1/1) ... [2022-09-29 14:47:53,771 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "equal-array-sums.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 02:47:53" (1/1) ... [2022-09-29 14:47:53,773 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-29 14:47:53,775 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-29 14:47:53,776 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-29 14:47:53,776 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-29 14:47:53,777 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "equal-array-sums.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 02:47:53" (1/1) ... [2022-09-29 14:47:53,780 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 14:47:53,785 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 14:47:53,795 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) [2022-09-29 14:47:53,809 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 [2022-09-29 14:47:53,832 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-09-29 14:47:53,832 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-09-29 14:47:53,832 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-09-29 14:47:53,832 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-09-29 14:47:53,832 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-09-29 14:47:53,832 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-09-29 14:47:53,832 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-09-29 14:47:53,832 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-29 14:47:53,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-29 14:47:53,833 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-09-29 14:47:53,864 INFO L234 CfgBuilder]: Building ICFG [2022-09-29 14:47:53,865 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-29 14:47:53,925 INFO L275 CfgBuilder]: Performing block encoding [2022-09-29 14:47:53,929 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-29 14:47:53,929 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-09-29 14:47:53,930 INFO L202 PluginConnector]: Adding new model equal-array-sums.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.09 02:47:53 BoogieIcfgContainer [2022-09-29 14:47:53,930 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-29 14:47:53,931 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-09-29 14:47:53,931 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-09-29 14:47:53,952 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-09-29 14:47:53,952 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-09-29 14:47:53,952 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "equal-array-sums.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 02:47:53" (1/2) ... [2022-09-29 14:47:53,953 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@42987fd9 and model type equal-array-sums.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.09 02:47:53, skipping insertion in model container [2022-09-29 14:47:53,953 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-09-29 14:47:53,953 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "equal-array-sums.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.09 02:47:53" (2/2) ... [2022-09-29 14:47:53,954 INFO L322 chiAutomizerObserver]: Analyzing ICFG equal-array-sums.bpl [2022-09-29 14:47:54,002 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-09-29 14:47:54,024 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 28 places, 25 transitions, 66 flow [2022-09-29 14:47:54,038 INFO L175 PetriNetUnfolderBase]: Searched whole Unfolding. [2022-09-29 14:47:54,038 INFO L123 PetriNetUnfolderBase]: 2/21 cut-off events. [2022-09-29 14:47:54,038 INFO L124 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2022-09-29 14:47:54,040 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30 conditions, 21 events. 2/21 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 24 event pairs, 0 based on Foata normal form. 0/18 useless extension candidates. Maximal degree in co-relation 15. Up to 2 conditions per place. [2022-09-29 14:47:54,040 INFO L82 GeneralOperation]: Start removeDead. Operand has 28 places, 25 transitions, 66 flow [2022-09-29 14:47:54,043 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 26 places, 21 transitions, 54 flow [2022-09-29 14:47:54,045 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-09-29 14:47:54,060 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 26 places, 21 transitions, 54 flow [2022-09-29 14:47:54,062 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 26 places, 21 transitions, 54 flow [2022-09-29 14:47:54,069 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 26 places, 21 transitions, 54 flow [2022-09-29 14:47:54,074 INFO L175 PetriNetUnfolderBase]: Searched whole Unfolding. [2022-09-29 14:47:54,075 INFO L123 PetriNetUnfolderBase]: 2/21 cut-off events. [2022-09-29 14:47:54,075 INFO L124 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2022-09-29 14:47:54,075 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30 conditions, 21 events. 2/21 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 25 event pairs, 0 based on Foata normal form. 0/18 useless extension candidates. Maximal degree in co-relation 15. Up to 2 conditions per place. [2022-09-29 14:47:54,076 INFO L116 LiptonReduction]: Number of co-enabled transitions 96 [2022-09-29 14:47:54,275 INFO L131 LiptonReduction]: Checked pairs total: 63 [2022-09-29 14:47:54,276 INFO L133 LiptonReduction]: Total number of compositions: 8 [2022-09-29 14:47:54,297 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-09-29 14:47:54,297 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-09-29 14:47:54,297 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-09-29 14:47:54,297 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-09-29 14:47:54,297 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-09-29 14:47:54,297 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-09-29 14:47:54,297 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-09-29 14:47:54,297 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiPetriNetCegarLoop ======== [2022-09-29 14:47:54,298 INFO L68 IsEmptyBuchi]: Start isEmptyBuchi. Operand has 18 places, 13 transitions, 38 flow [2022-09-29 14:47:54,301 INFO L76 AcceptsInfiniteWords]: Start buchiAccepts. Operand has 18 places, 13 transitions, 38 flow [2022-09-29 14:47:54,302 INFO L82 AcceptsInfiniteWords]: Finished buchiAccepts. [2022-09-29 14:47:54,304 INFO L157 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2022-09-29 14:47:54,304 INFO L123 PetriNetUnfolderBase]: 0/4 cut-off events. [2022-09-29 14:47:54,304 INFO L124 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2022-09-29 14:47:54,304 INFO L78 IsEmptyBuchi]: Finished isEmptyBuchi language is not empty [2022-09-29 14:47:54,321 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-09-29 14:47:54,322 INFO L68 IsEmptyBuchi]: Start isEmptyBuchi. Operand has 18 places, 13 transitions, 38 flow [2022-09-29 14:47:54,323 INFO L76 AcceptsInfiniteWords]: Start buchiAccepts. Operand has 18 places, 13 transitions, 38 flow [2022-09-29 14:47:54,323 INFO L82 AcceptsInfiniteWords]: Finished buchiAccepts. [2022-09-29 14:47:54,324 INFO L157 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2022-09-29 14:47:54,324 INFO L123 PetriNetUnfolderBase]: 0/4 cut-off events. [2022-09-29 14:47:54,324 INFO L124 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2022-09-29 14:47:54,324 INFO L78 IsEmptyBuchi]: Finished isEmptyBuchi language is not empty [2022-09-29 14:47:54,327 INFO L733 eck$LassoCheckResult]: Stem: 32#[ULTIMATE.startENTRY]true [71] ULTIMATE.startENTRY-->L21: Formula: (and (= v_y_10 0) (= v_x_6 0)) InVars {} OutVars{y=v_y_10, x=v_x_6} AuxVars[] AssignedVars[y, x] 34#[L21]true [64] L21-->thread1ENTRY: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2, thread1Thread1of1ForFork0_i=v_thread1Thread1of1ForFork0_i_14} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0, thread1Thread1of1ForFork0_i] 36#[L21-1, thread1ENTRY]true [50] thread1ENTRY-->L35-1: Formula: (= v_thread1Thread1of1ForFork0_i_1 0) InVars {} OutVars{thread1Thread1of1ForFork0_i=v_thread1Thread1of1ForFork0_i_1} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_i] 38#[L35-1, L21-1]true [2022-09-29 14:47:54,328 INFO L735 eck$LassoCheckResult]: Loop: 38#[L35-1, L21-1]true [77] L35-1-->L35-1: Formula: (and (< v_thread1Thread1of1ForFork0_i_20 v_n_15) (= v_thread1Thread1of1ForFork0_i_19 (+ v_thread1Thread1of1ForFork0_i_20 1)) (= (+ v_x_15 (select v_A_9 v_thread1Thread1of1ForFork0_i_20)) v_x_14)) InVars {A=v_A_9, n=v_n_15, thread1Thread1of1ForFork0_i=v_thread1Thread1of1ForFork0_i_20, x=v_x_15} OutVars{A=v_A_9, n=v_n_15, thread1Thread1of1ForFork0_i=v_thread1Thread1of1ForFork0_i_19, x=v_x_14} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_i, x] 38#[L35-1, L21-1]true [2022-09-29 14:47:54,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 14:47:54,331 INFO L85 PathProgramCache]: Analyzing trace with hash 100056, now seen corresponding path program 1 times [2022-09-29 14:47:54,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 14:47:54,339 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773914772] [2022-09-29 14:47:54,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 14:47:54,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 14:47:54,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 14:47:54,388 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-09-29 14:47:54,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 14:47:54,406 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-09-29 14:47:54,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 14:47:54,409 INFO L85 PathProgramCache]: Analyzing trace with hash 108, now seen corresponding path program 1 times [2022-09-29 14:47:54,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 14:47:54,410 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386254069] [2022-09-29 14:47:54,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 14:47:54,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 14:47:54,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 14:47:54,426 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-09-29 14:47:54,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 14:47:54,436 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-09-29 14:47:54,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 14:47:54,437 INFO L85 PathProgramCache]: Analyzing trace with hash 3101813, now seen corresponding path program 1 times [2022-09-29 14:47:54,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 14:47:54,438 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434606180] [2022-09-29 14:47:54,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 14:47:54,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 14:47:54,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 14:47:54,444 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-09-29 14:47:54,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 14:47:54,461 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-09-29 14:47:54,524 INFO L210 LassoAnalysis]: Preferences: [2022-09-29 14:47:54,524 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-09-29 14:47:54,524 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-09-29 14:47:54,524 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-09-29 14:47:54,524 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-09-29 14:47:54,524 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 14:47:54,524 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-09-29 14:47:54,525 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-09-29 14:47:54,525 INFO L133 ssoRankerPreferences]: Filename of dumped script: equal-array-sums.bpl_BEv2_Iteration1_Lasso [2022-09-29 14:47:54,525 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-09-29 14:47:54,525 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-09-29 14:47:54,538 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-09-29 14:47:54,550 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-09-29 14:47:54,554 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-09-29 14:47:54,643 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-09-29 14:47:54,649 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-09-29 14:47:54,686 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 14:47:54,687 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 14:47:54,695 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) [2022-09-29 14:47:54,696 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 [2022-09-29 14:47:54,699 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 [2022-09-29 14:47:54,705 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-09-29 14:47:54,706 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-09-29 14:47:54,706 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-09-29 14:47:54,706 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-09-29 14:47:54,709 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-09-29 14:47:54,709 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-09-29 14:47:54,727 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-09-29 14:47:54,745 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 [2022-09-29 14:47:54,745 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 14:47:54,745 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 14:47:54,746 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) [2022-09-29 14:47:54,747 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 [2022-09-29 14:47:54,748 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 [2022-09-29 14:47:54,754 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-09-29 14:47:54,755 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-09-29 14:47:54,755 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-09-29 14:47:54,755 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-09-29 14:47:54,757 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-09-29 14:47:54,757 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-09-29 14:47:54,776 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-09-29 14:47:54,791 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 [2022-09-29 14:47:54,791 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 14:47:54,792 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 14:47:54,793 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) [2022-09-29 14:47:54,794 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 [2022-09-29 14:47:54,795 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 [2022-09-29 14:47:54,801 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-09-29 14:47:54,801 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-09-29 14:47:54,801 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-09-29 14:47:54,801 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-09-29 14:47:54,804 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-09-29 14:47:54,804 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-09-29 14:47:54,819 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-09-29 14:47:54,835 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 [2022-09-29 14:47:54,835 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 14:47:54,835 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 14:47:54,837 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) [2022-09-29 14:47:54,838 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 [2022-09-29 14:47:54,839 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 [2022-09-29 14:47:54,845 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-09-29 14:47:54,845 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-09-29 14:47:54,845 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-09-29 14:47:54,845 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-09-29 14:47:54,851 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-09-29 14:47:54,852 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-09-29 14:47:54,868 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-09-29 14:47:54,883 INFO L443 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver. [2022-09-29 14:47:54,883 INFO L444 ModelExtractionUtils]: 4 out of 10 variables were initially zero. Simplification set additionally 3 variables to zero. [2022-09-29 14:47:54,884 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 14:47:54,885 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 14:47:54,886 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) [2022-09-29 14:47:54,889 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 [2022-09-29 14:47:54,890 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-09-29 14:47:54,900 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2022-09-29 14:47:54,900 INFO L513 LassoAnalysis]: Proved termination. [2022-09-29 14:47:54,901 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(thread1Thread1of1ForFork0_i, n) = -1*thread1Thread1of1ForFork0_i + 1*n Supporting invariants [] [2022-09-29 14:47:54,918 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 [2022-09-29 14:47:54,921 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-09-29 14:47:54,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 14:47:54,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 14:47:54,943 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjunts are in the unsatisfiable core [2022-09-29 14:47:54,944 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-29 14:47:54,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 14:47:54,956 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2022-09-29 14:47:54,960 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-29 14:47:54,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-29 14:47:54,987 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 [2022-09-29 14:47:54,989 INFO L162 BuchiComplementFKV]: Start buchiComplementFKV with optimization HEIMAT2. Operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-29 14:47:55,080 INFO L171 BuchiComplementFKV]: Finished buchiComplementFKV with optimization HEIMAT2. Operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 6 states and 286 transitions.4 powerset states2 rank states. The highest rank that occured is 1 [2022-09-29 14:47:55,081 INFO L54 IntersectBuchiEager]: Starting Intersection [2022-09-29 14:47:55,087 INFO L61 IntersectBuchiEager]: Exiting Intersection [2022-09-29 14:47:55,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-09-29 14:47:55,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-29 14:47:55,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 95 transitions. [2022-09-29 14:47:55,106 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 95 transitions. Stem has 3 letters. Loop has 1 letters. [2022-09-29 14:47:55,106 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-09-29 14:47:55,106 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 95 transitions. Stem has 4 letters. Loop has 1 letters. [2022-09-29 14:47:55,107 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-09-29 14:47:55,107 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 95 transitions. Stem has 3 letters. Loop has 2 letters. [2022-09-29 14:47:55,107 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-09-29 14:47:55,107 INFO L428 stractBuchiCegarLoop]: Abstraction has has 30 places, 212 transitions, 1046 flow [2022-09-29 14:47:55,107 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-09-29 14:47:55,107 INFO L68 IsEmptyBuchi]: Start isEmptyBuchi. Operand has 30 places, 212 transitions, 1046 flow [2022-09-29 14:47:55,109 INFO L76 AcceptsInfiniteWords]: Start buchiAccepts. Operand has 30 places, 212 transitions, 1046 flow [2022-09-29 14:47:55,110 INFO L82 AcceptsInfiniteWords]: Finished buchiAccepts. [2022-09-29 14:47:55,111 INFO L76 AcceptsInfiniteWords]: Start buchiAccepts. Operand has 30 places, 212 transitions, 1046 flow [2022-09-29 14:47:55,114 INFO L82 AcceptsInfiniteWords]: Finished buchiAccepts. [2022-09-29 14:47:55,114 INFO L157 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2022-09-29 14:47:55,114 INFO L123 PetriNetUnfolderBase]: 4/16 cut-off events. [2022-09-29 14:47:55,114 INFO L124 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2022-09-29 14:47:55,114 INFO L78 IsEmptyBuchi]: Finished isEmptyBuchi language is not empty [2022-09-29 14:47:55,114 INFO L733 eck$LassoCheckResult]: Stem: 32#[ULTIMATE.startENTRY]true [71] ULTIMATE.startENTRY-->L21: Formula: (and (= v_y_10 0) (= v_x_6 0)) InVars {} OutVars{y=v_y_10, x=v_x_6} AuxVars[] AssignedVars[y, x] 34#[L21]true [64] L21-->thread1ENTRY: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2, thread1Thread1of1ForFork0_i=v_thread1Thread1of1ForFork0_i_14} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0, thread1Thread1of1ForFork0_i] 36#[L21-1, thread1ENTRY]true [67] L21-1-->thread2ENTRY: Formula: (and (= 2 v_thread2Thread1of1ForFork1_thidvar1_2) (= 2 v_thread2Thread1of1ForFork1_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork1_j=v_thread2Thread1of1ForFork1_j_14, thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_2, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_j, thread2Thread1of1ForFork1_thidvar0, thread2Thread1of1ForFork1_thidvar1] 89#[L22, thread2ENTRY, thread1ENTRY]true [56] thread2ENTRY-->L47-1: Formula: (= v_thread2Thread1of1ForFork1_j_1 0) InVars {} OutVars{thread2Thread1of1ForFork1_j=v_thread2Thread1of1ForFork1_j_1} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_j] 91#[L22, L47-1, thread1ENTRY]true [2022-09-29 14:47:55,114 INFO L735 eck$LassoCheckResult]: Loop: 91#[L22, L47-1, thread1ENTRY]true [76] L47-1-->L47-1: Formula: (and (= (+ (select v_A_7 v_thread2Thread1of1ForFork1_j_20) v_y_15) v_y_14) (= v_thread2Thread1of1ForFork1_j_19 (+ v_thread2Thread1of1ForFork1_j_20 1)) (< v_thread2Thread1of1ForFork1_j_20 v_n_13)) InVars {thread2Thread1of1ForFork1_j=v_thread2Thread1of1ForFork1_j_20, A=v_A_7, n=v_n_13, y=v_y_15} OutVars{thread2Thread1of1ForFork1_j=v_thread2Thread1of1ForFork1_j_19, A=v_A_7, n=v_n_13, y=v_y_14} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_j, y] 91#[L22, L47-1, thread1ENTRY]true [2022-09-29 14:47:55,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 14:47:55,115 INFO L85 PathProgramCache]: Analyzing trace with hash 3102319, now seen corresponding path program 1 times [2022-09-29 14:47:55,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 14:47:55,115 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768092527] [2022-09-29 14:47:55,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 14:47:55,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 14:47:55,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 14:47:55,118 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-09-29 14:47:55,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 14:47:55,126 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-09-29 14:47:55,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 14:47:55,126 INFO L85 PathProgramCache]: Analyzing trace with hash 107, now seen corresponding path program 1 times [2022-09-29 14:47:55,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 14:47:55,127 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336293100] [2022-09-29 14:47:55,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 14:47:55,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 14:47:55,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 14:47:55,132 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-09-29 14:47:55,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 14:47:55,141 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-09-29 14:47:55,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 14:47:55,141 INFO L85 PathProgramCache]: Analyzing trace with hash 96171965, now seen corresponding path program 1 times [2022-09-29 14:47:55,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 14:47:55,141 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026872137] [2022-09-29 14:47:55,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 14:47:55,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 14:47:55,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 14:47:55,155 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-09-29 14:47:55,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 14:47:55,159 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-09-29 14:47:55,210 INFO L210 LassoAnalysis]: Preferences: [2022-09-29 14:47:55,211 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-09-29 14:47:55,211 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-09-29 14:47:55,211 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-09-29 14:47:55,211 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-09-29 14:47:55,211 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 14:47:55,211 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-09-29 14:47:55,211 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-09-29 14:47:55,211 INFO L133 ssoRankerPreferences]: Filename of dumped script: equal-array-sums.bpl_BEv2_Iteration2_Lasso [2022-09-29 14:47:55,211 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-09-29 14:47:55,211 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-09-29 14:47:55,212 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-09-29 14:47:55,222 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-09-29 14:47:55,224 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-09-29 14:47:55,226 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-09-29 14:47:55,228 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-09-29 14:47:55,230 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-09-29 14:47:55,318 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-09-29 14:47:55,318 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-09-29 14:47:55,318 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 14:47:55,318 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 14:47:55,319 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) [2022-09-29 14:47:55,320 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 [2022-09-29 14:47:55,324 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 [2022-09-29 14:47:55,329 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-09-29 14:47:55,329 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-09-29 14:47:55,329 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-09-29 14:47:55,329 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-09-29 14:47:55,333 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-09-29 14:47:55,335 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-09-29 14:47:55,352 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-09-29 14:47:55,357 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2022-09-29 14:47:55,357 INFO L444 ModelExtractionUtils]: 4 out of 10 variables were initially zero. Simplification set additionally 3 variables to zero. [2022-09-29 14:47:55,358 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 14:47:55,358 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 14:47:55,424 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) [2022-09-29 14:47:55,434 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 [2022-09-29 14:47:55,435 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-09-29 14:47:55,459 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2022-09-29 14:47:55,460 INFO L513 LassoAnalysis]: Proved termination. [2022-09-29 14:47:55,460 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(thread2Thread1of1ForFork1_j, n) = -1*thread2Thread1of1ForFork1_j + 1*n Supporting invariants [] [2022-09-29 14:47:55,475 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 [2022-09-29 14:47:55,476 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-09-29 14:47:55,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 14:47:55,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 14:47:55,494 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 2 conjunts are in the unsatisfiable core [2022-09-29 14:47:55,494 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-29 14:47:55,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 14:47:55,503 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2022-09-29 14:47:55,504 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-29 14:47:55,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-29 14:47:55,505 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 [2022-09-29 14:47:55,505 INFO L162 BuchiComplementFKV]: Start buchiComplementFKV with optimization HEIMAT2. Operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-29 14:47:55,581 INFO L171 BuchiComplementFKV]: Finished buchiComplementFKV with optimization HEIMAT2. Operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 6 states and 286 transitions.4 powerset states2 rank states. The highest rank that occured is 1 [2022-09-29 14:47:55,581 INFO L54 IntersectBuchiEager]: Starting Intersection [2022-09-29 14:47:55,607 INFO L61 IntersectBuchiEager]: Exiting Intersection [2022-09-29 14:47:55,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-09-29 14:47:55,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-29 14:47:55,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 95 transitions. [2022-09-29 14:47:55,609 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 95 transitions. Stem has 4 letters. Loop has 1 letters. [2022-09-29 14:47:55,609 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-09-29 14:47:55,609 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 95 transitions. Stem has 5 letters. Loop has 1 letters. [2022-09-29 14:47:55,609 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-09-29 14:47:55,609 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 95 transitions. Stem has 4 letters. Loop has 2 letters. [2022-09-29 14:47:55,609 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-09-29 14:47:55,609 INFO L428 stractBuchiCegarLoop]: Abstraction has has 42 places, 3420 transitions, 23760 flow [2022-09-29 14:47:55,609 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-09-29 14:47:55,609 INFO L68 IsEmptyBuchi]: Start isEmptyBuchi. Operand has 42 places, 3420 transitions, 23760 flow [2022-09-29 14:47:55,627 INFO L76 AcceptsInfiniteWords]: Start buchiAccepts. Operand has 42 places, 3420 transitions, 23760 flow [2022-09-29 14:47:55,634 INFO L82 AcceptsInfiniteWords]: Finished buchiAccepts. [2022-09-29 14:47:55,636 INFO L76 AcceptsInfiniteWords]: Start buchiAccepts. Operand has 42 places, 3420 transitions, 23760 flow [2022-09-29 14:47:55,641 INFO L82 AcceptsInfiniteWords]: Finished buchiAccepts. [2022-09-29 14:47:55,646 INFO L76 AcceptsInfiniteWords]: Start buchiAccepts. Operand has 42 places, 3420 transitions, 23760 flow [2022-09-29 14:47:55,655 INFO L82 AcceptsInfiniteWords]: Finished buchiAccepts. [2022-09-29 14:47:55,662 INFO L76 AcceptsInfiniteWords]: Start buchiAccepts. Operand has 42 places, 3420 transitions, 23760 flow [2022-09-29 14:47:55,671 INFO L82 AcceptsInfiniteWords]: Finished buchiAccepts. [2022-09-29 14:47:55,675 INFO L76 AcceptsInfiniteWords]: Start buchiAccepts. Operand has 42 places, 3420 transitions, 23760 flow [2022-09-29 14:47:55,686 INFO L82 AcceptsInfiniteWords]: Finished buchiAccepts. [2022-09-29 14:47:55,692 INFO L76 AcceptsInfiniteWords]: Start buchiAccepts. Operand has 42 places, 3420 transitions, 23760 flow [2022-09-29 14:47:55,697 INFO L82 AcceptsInfiniteWords]: Finished buchiAccepts. [2022-09-29 14:47:55,701 INFO L76 AcceptsInfiniteWords]: Start buchiAccepts. Operand has 42 places, 3420 transitions, 23760 flow [2022-09-29 14:47:55,707 INFO L82 AcceptsInfiniteWords]: Finished buchiAccepts. [2022-09-29 14:47:55,711 INFO L76 AcceptsInfiniteWords]: Start buchiAccepts. Operand has 42 places, 3420 transitions, 23760 flow [2022-09-29 14:47:55,718 INFO L82 AcceptsInfiniteWords]: Finished buchiAccepts. [2022-09-29 14:47:55,730 INFO L76 AcceptsInfiniteWords]: Start buchiAccepts. Operand has 42 places, 3420 transitions, 23760 flow [2022-09-29 14:47:55,736 INFO L82 AcceptsInfiniteWords]: Finished buchiAccepts. [2022-09-29 14:47:55,737 INFO L76 AcceptsInfiniteWords]: Start buchiAccepts. Operand has 42 places, 3420 transitions, 23760 flow [2022-09-29 14:47:55,742 INFO L82 AcceptsInfiniteWords]: Finished buchiAccepts. [2022-09-29 14:47:55,748 INFO L76 AcceptsInfiniteWords]: Start buchiAccepts. Operand has 42 places, 3420 transitions, 23760 flow [2022-09-29 14:47:55,753 INFO L82 AcceptsInfiniteWords]: Finished buchiAccepts. [2022-09-29 14:47:55,766 INFO L76 AcceptsInfiniteWords]: Start buchiAccepts. Operand has 42 places, 3420 transitions, 23760 flow [2022-09-29 14:47:55,773 INFO L82 AcceptsInfiniteWords]: Finished buchiAccepts. [2022-09-29 14:47:55,785 INFO L175 PetriNetUnfolderBase]: Searched whole Unfolding. [2022-09-29 14:47:55,785 INFO L123 PetriNetUnfolderBase]: 193/321 cut-off events. [2022-09-29 14:47:55,785 INFO L124 PetriNetUnfolderBase]: For 52/52 co-relation queries the response was YES. [2022-09-29 14:47:55,786 INFO L47 CFPrefixIsEmptyBuchi]: Starting emptiness check. [2022-09-29 14:47:55,786 INFO L62 CFPrefixIsEmptyBuchi]: Starting cutoff event analysis. [2022-09-29 14:47:55,786 INFO L72 CFPrefixIsEmptyBuchi]: Ended cutoff event analysis. [2022-09-29 14:47:55,786 INFO L76 CFPrefixIsEmptyBuchi]: Type 1 Lasso search started. [2022-09-29 14:47:55,786 INFO L87 CFPrefixIsEmptyBuchi]: Type 1 Lasso search ended. [2022-09-29 14:47:55,786 INFO L107 CFPrefixIsEmptyBuchi]: Type 3 Lasso search started. [2022-09-29 14:47:55,797 INFO L206 CFPrefixIsEmptyBuchi]: Type 3 Lasso search ended. [2022-09-29 14:47:55,797 INFO L50 CFPrefixIsEmptyBuchi]: Finished emptiness check, language is empty [2022-09-29 14:47:55,797 INFO L78 IsEmptyBuchi]: Finished isEmptyBuchi language is empty [2022-09-29 14:47:55,813 INFO L202 PluginConnector]: Adding new model equal-array-sums.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.09 02:47:55 BoogieIcfgContainer [2022-09-29 14:47:55,813 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-09-29 14:47:55,819 INFO L158 Benchmark]: Toolchain (without parser) took 2071.11ms. Allocated memory was 184.5MB in the beginning and 244.3MB in the end (delta: 59.8MB). Free memory was 143.4MB in the beginning and 141.9MB in the end (delta: 1.5MB). Peak memory consumption was 62.3MB. Max. memory is 8.0GB. [2022-09-29 14:47:55,820 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.10ms. Allocated memory is still 184.5MB. Free memory is still 144.5MB. There was no memory consumed. Max. memory is 8.0GB. [2022-09-29 14:47:55,820 INFO L158 Benchmark]: Boogie Procedure Inliner took 17.61ms. Allocated memory is still 184.5MB. Free memory was 143.4MB in the beginning and 141.8MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 8.0GB. [2022-09-29 14:47:55,820 INFO L158 Benchmark]: Boogie Preprocessor took 11.56ms. Allocated memory is still 184.5MB. Free memory was 141.8MB in the beginning and 140.9MB in the end (delta: 982.8kB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-09-29 14:47:55,820 INFO L158 Benchmark]: RCFGBuilder took 154.94ms. Allocated memory is still 184.5MB. Free memory was 140.9MB in the beginning and 132.2MB in the end (delta: 8.6MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-09-29 14:47:55,821 INFO L158 Benchmark]: BuchiAutomizer took 1882.01ms. Allocated memory was 184.5MB in the beginning and 244.3MB in the end (delta: 59.8MB). Free memory was 132.1MB in the beginning and 141.9MB in the end (delta: -9.8MB). Peak memory consumption was 50.7MB. Max. memory is 8.0GB. [2022-09-29 14:47:55,822 INFO L339 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 0.10ms. Allocated memory is still 184.5MB. Free memory is still 144.5MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 17.61ms. Allocated memory is still 184.5MB. Free memory was 143.4MB in the beginning and 141.8MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 8.0GB. * Boogie Preprocessor took 11.56ms. Allocated memory is still 184.5MB. Free memory was 141.8MB in the beginning and 140.9MB in the end (delta: 982.8kB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 154.94ms. Allocated memory is still 184.5MB. Free memory was 140.9MB in the beginning and 132.2MB in the end (delta: 8.6MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * BuchiAutomizer took 1882.01ms. Allocated memory was 184.5MB in the beginning and 244.3MB in the end (delta: 59.8MB). Free memory was 132.1MB in the beginning and 141.9MB in the end (delta: -9.8MB). Peak memory consumption was 50.7MB. 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 2 terminating modules (0 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -1 * i + n and consists of 3 locations. One deterministic module has affine ranking function n + -1 * j and consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.7s and 3 iterations. TraceHistogramMax:0. Analysis of lassos took 0.9s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 1. 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 [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 124 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 122 mSDsluCounter, 100 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 38 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 100 IncrementalHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 72 mSDtfsCounter, 100 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital32 mio100 ax100 hnf100 lsp72 ukn91 mio100 lsp57 div100 bol100 ite100 ukn100 eq183 hnf95 smp100 dnf100 smp100 tf100 neg100 sie109 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 78ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.2s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.2s, 26 PlacesBefore, 18 PlacesAfterwards, 21 TransitionsBefore, 13 TransitionsAfterwards, 96 CoEnabledTransitionPairs, 2 FixpointIterations, 2 TrivialSequentialCompositions, 6 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 8 TotalNumberOfCompositions, 63 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 63, positive: 63, positive conditional: 0, positive unconditional: 63, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 50, positive: 50, positive conditional: 0, positive unconditional: 50, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 50, positive: 50, positive conditional: 0, positive unconditional: 50, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 63, positive: 13, positive conditional: 0, positive unconditional: 13, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 50, unknown conditional: 0, unknown unconditional: 50] , Statistics on independence cache: Total cache size (in pairs): 8, Positive cache size: 8, Positive conditional cache size: 0, Positive unconditional cache size: 8, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 RESULT: Ultimate proved your program to be correct! [2022-09-29 14:47:55,850 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 [2022-09-29 14:47:56,062 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 [2022-09-29 14:47:56,276 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...