/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-automaton-semanticLbe.epf -i ../../../trunk/examples/concurrent/bpl/equal-array-sums-locked.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.fs.omega-petrinet-ed1a3e5-m [2022-09-29 14:45:26,340 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-29 14:45:26,343 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-29 14:45:26,376 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-09-29 14:45:26,376 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-09-29 14:45:26,379 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-09-29 14:45:26,381 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-09-29 14:45:26,383 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-09-29 14:45:26,384 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-09-29 14:45:26,387 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-09-29 14:45:26,388 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-09-29 14:45:26,389 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-09-29 14:45:26,390 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-29 14:45:26,391 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-29 14:45:26,392 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-29 14:45:26,394 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-29 14:45:26,395 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-29 14:45:26,395 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-29 14:45:26,397 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-29 14:45:26,400 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-29 14:45:26,401 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-29 14:45:26,402 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-29 14:45:26,403 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-29 14:45:26,404 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-29 14:45:26,407 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-09-29 14:45:26,412 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-29 14:45:26,412 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-29 14:45:26,413 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-29 14:45:26,416 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/buchiAutomizer/concurrent-automaton-semanticLbe.epf [2022-09-29 14:45:26,439 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-29 14:45:26,439 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-29 14:45:26,440 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-09-29 14:45:26,440 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-09-29 14:45:26,441 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-29 14:45:26,441 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-29 14:45:26,441 INFO L138 SettingsManager]: * Use SBE=true [2022-09-29 14:45:26,441 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-09-29 14:45:26,441 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-09-29 14:45:26,441 INFO L138 SettingsManager]: * Use old map elimination=false [2022-09-29 14:45:26,442 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-09-29 14:45:26,442 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-09-29 14:45:26,442 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-09-29 14:45:26,442 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-29 14:45:26,442 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-29 14:45:26,442 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-09-29 14:45:26,442 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-29 14:45:26,442 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-29 14:45:26,442 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-29 14:45:26,442 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-09-29 14:45:26,443 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-09-29 14:45:26,443 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-09-29 14:45:26,443 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-29 14:45:26,443 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-29 14:45:26,443 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-09-29 14:45:26,443 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-29 14:45:26,443 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-09-29 14:45:26,443 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-29 14:45:26,443 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-29 14:45:26,443 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-29 14:45:26,443 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-29 14:45:26,444 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-09-29 14:45:26,444 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-09-29 14:45:26,645 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-29 14:45:26,667 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-29 14:45:26,669 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-29 14:45:26,670 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-09-29 14:45:26,671 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-09-29 14:45:26,672 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/equal-array-sums-locked.bpl [2022-09-29 14:45:26,672 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/equal-array-sums-locked.bpl' [2022-09-29 14:45:26,689 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-29 14:45:26,690 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-09-29 14:45:26,691 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-09-29 14:45:26,691 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-09-29 14:45:26,691 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-09-29 14:45:26,700 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "equal-array-sums-locked.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 02:45:26" (1/1) ... [2022-09-29 14:45:26,705 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "equal-array-sums-locked.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 02:45:26" (1/1) ... [2022-09-29 14:45:26,714 INFO L137 Inliner]: procedures = 5, calls = 6, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 20 [2022-09-29 14:45:26,715 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-09-29 14:45:26,718 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-29 14:45:26,719 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-29 14:45:26,719 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-29 14:45:26,723 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "equal-array-sums-locked.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 02:45:26" (1/1) ... [2022-09-29 14:45:26,724 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "equal-array-sums-locked.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 02:45:26" (1/1) ... [2022-09-29 14:45:26,724 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "equal-array-sums-locked.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 02:45:26" (1/1) ... [2022-09-29 14:45:26,724 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "equal-array-sums-locked.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 02:45:26" (1/1) ... [2022-09-29 14:45:26,726 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "equal-array-sums-locked.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 02:45:26" (1/1) ... [2022-09-29 14:45:26,727 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "equal-array-sums-locked.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 02:45:26" (1/1) ... [2022-09-29 14:45:26,728 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "equal-array-sums-locked.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 02:45:26" (1/1) ... [2022-09-29 14:45:26,729 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-29 14:45:26,731 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-29 14:45:26,731 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-29 14:45:26,731 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-29 14:45:26,732 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "equal-array-sums-locked.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 02:45:26" (1/1) ... [2022-09-29 14:45:26,736 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 14:45:26,741 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 14:45:26,752 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 14:45:26,758 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 14:45:26,788 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-09-29 14:45:26,788 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-09-29 14:45:26,788 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-09-29 14:45:26,788 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-09-29 14:45:26,788 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-09-29 14:45:26,788 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-09-29 14:45:26,788 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-09-29 14:45:26,788 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-29 14:45:26,788 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-29 14:45:26,789 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 14:45:26,842 INFO L234 CfgBuilder]: Building ICFG [2022-09-29 14:45:26,843 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-29 14:45:26,916 INFO L275 CfgBuilder]: Performing block encoding [2022-09-29 14:45:26,923 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-29 14:45:26,923 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-09-29 14:45:26,925 INFO L202 PluginConnector]: Adding new model equal-array-sums-locked.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.09 02:45:26 BoogieIcfgContainer [2022-09-29 14:45:26,925 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-29 14:45:26,925 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-09-29 14:45:26,925 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-09-29 14:45:26,940 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-09-29 14:45:26,941 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-09-29 14:45:26,941 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "equal-array-sums-locked.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 02:45:26" (1/2) ... [2022-09-29 14:45:26,942 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@eb33e55 and model type equal-array-sums-locked.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.09 02:45:26, skipping insertion in model container [2022-09-29 14:45:26,942 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-09-29 14:45:26,942 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "equal-array-sums-locked.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.09 02:45:26" (2/2) ... [2022-09-29 14:45:26,943 INFO L322 chiAutomizerObserver]: Analyzing ICFG equal-array-sums-locked.bpl [2022-09-29 14:45:26,982 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-09-29 14:45:27,022 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 40 places, 37 transitions, 90 flow [2022-09-29 14:45:27,045 INFO L175 PetriNetUnfolderBase]: Searched whole Unfolding. [2022-09-29 14:45:27,045 INFO L123 PetriNetUnfolderBase]: 2/33 cut-off events. [2022-09-29 14:45:27,045 INFO L124 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2022-09-29 14:45:27,047 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42 conditions, 33 events. 2/33 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 62 event pairs, 0 based on Foata normal form. 0/30 useless extension candidates. Maximal degree in co-relation 27. Up to 2 conditions per place. [2022-09-29 14:45:27,048 INFO L82 GeneralOperation]: Start removeDead. Operand has 40 places, 37 transitions, 90 flow [2022-09-29 14:45:27,056 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 38 places, 33 transitions, 78 flow [2022-09-29 14:45:27,058 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-09-29 14:45:27,068 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 38 places, 33 transitions, 78 flow [2022-09-29 14:45:27,070 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 38 places, 33 transitions, 78 flow [2022-09-29 14:45:27,070 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 38 places, 33 transitions, 78 flow [2022-09-29 14:45:27,076 INFO L175 PetriNetUnfolderBase]: Searched whole Unfolding. [2022-09-29 14:45:27,076 INFO L123 PetriNetUnfolderBase]: 2/33 cut-off events. [2022-09-29 14:45:27,076 INFO L124 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2022-09-29 14:45:27,077 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42 conditions, 33 events. 2/33 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 63 event pairs, 0 based on Foata normal form. 0/30 useless extension candidates. Maximal degree in co-relation 27. Up to 2 conditions per place. [2022-09-29 14:45:27,077 INFO L116 LiptonReduction]: Number of co-enabled transitions 336 [2022-09-29 14:45:27,382 INFO L131 LiptonReduction]: Checked pairs total: 296 [2022-09-29 14:45:27,382 INFO L133 LiptonReduction]: Total number of compositions: 18 [2022-09-29 14:45:27,395 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-09-29 14:45:27,395 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-09-29 14:45:27,395 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-09-29 14:45:27,395 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-09-29 14:45:27,395 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-09-29 14:45:27,396 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-09-29 14:45:27,396 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-09-29 14:45:27,396 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-09-29 14:45:27,397 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 0 states, but on-demand construction may add more states [2022-09-29 14:45:27,416 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 16 [2022-09-29 14:45:27,417 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-09-29 14:45:27,417 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-09-29 14:45:27,420 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-09-29 14:45:27,420 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-09-29 14:45:27,420 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-09-29 14:45:27,420 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 28 states, but on-demand construction may add more states [2022-09-29 14:45:27,422 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 16 [2022-09-29 14:45:27,422 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-09-29 14:45:27,422 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-09-29 14:45:27,422 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-09-29 14:45:27,422 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-09-29 14:45:27,426 INFO L733 eck$LassoCheckResult]: Stem: 43#[ULTIMATE.startENTRY]don't care [117] ULTIMATE.startENTRY-->L26: Formula: (and (= v_x_10 0) (= v_y_6 0)) InVars {} OutVars{y=v_y_6, x=v_x_10} AuxVars[] AssignedVars[y, x] 46#[L26]don't care [108] L26-->thread1ENTRY: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_i#1=|v_thread1Thread1of1ForFork0_i#1_14|, thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_i#1, thread1Thread1of1ForFork0_thidvar0] 48#[L26-1, thread1ENTRY]don't care [82] thread1ENTRY-->L40-1: Formula: (= |v_thread1Thread1of1ForFork0_i#1_1| 0) InVars {} OutVars{thread1Thread1of1ForFork0_i#1=|v_thread1Thread1of1ForFork0_i#1_1|} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_i#1] 50#[L40-1, L26-1]don't care [2022-09-29 14:45:27,426 INFO L735 eck$LassoCheckResult]: Loop: 50#[L40-1, L26-1]don't care [128] L40-1-->L42: Formula: (and v_m_56 (< |v_thread1Thread1of1ForFork0_i#1_27| v_n_13) (not v_m_57)) InVars {thread1Thread1of1ForFork0_i#1=|v_thread1Thread1of1ForFork0_i#1_27|, n=v_n_13, m=v_m_57} OutVars{thread1Thread1of1ForFork0_i#1=|v_thread1Thread1of1ForFork0_i#1_27|, n=v_n_13, m=v_m_56} AuxVars[] AssignedVars[m] 54#[L26-1, L42]don't care [130] L42-->L40-1: Formula: (and (= |v_thread1Thread1of1ForFork0_i#1_31| (+ |v_thread1Thread1of1ForFork0_i#1_32| 1)) (not v_m_69) (= (+ v_x_23 (select v_A_13 |v_thread1Thread1of1ForFork0_i#1_32|)) v_x_22)) InVars {A=v_A_13, thread1Thread1of1ForFork0_i#1=|v_thread1Thread1of1ForFork0_i#1_32|, x=v_x_23} OutVars{A=v_A_13, thread1Thread1of1ForFork0_i#1=|v_thread1Thread1of1ForFork0_i#1_31|, m=v_m_69, x=v_x_22} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_i#1, m, x] 50#[L40-1, L26-1]don't care [2022-09-29 14:45:27,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 14:45:27,429 INFO L85 PathProgramCache]: Analyzing trace with hash 145658, now seen corresponding path program 1 times [2022-09-29 14:45:27,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 14:45:27,435 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119995684] [2022-09-29 14:45:27,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 14:45:27,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 14:45:27,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 14:45:27,480 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-09-29 14:45:27,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 14:45:27,492 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-09-29 14:45:27,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 14:45:27,494 INFO L85 PathProgramCache]: Analyzing trace with hash 5059, now seen corresponding path program 1 times [2022-09-29 14:45:27,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 14:45:27,495 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466254092] [2022-09-29 14:45:27,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 14:45:27,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 14:45:27,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 14:45:27,521 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-09-29 14:45:27,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 14:45:27,531 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-09-29 14:45:27,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 14:45:27,534 INFO L85 PathProgramCache]: Analyzing trace with hash 139981436, now seen corresponding path program 1 times [2022-09-29 14:45:27,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 14:45:27,534 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890480958] [2022-09-29 14:45:27,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 14:45:27,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 14:45:27,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 14:45:27,546 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-09-29 14:45:27,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 14:45:27,552 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-09-29 14:45:27,655 INFO L210 LassoAnalysis]: Preferences: [2022-09-29 14:45:27,655 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-09-29 14:45:27,655 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-09-29 14:45:27,655 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-09-29 14:45:27,656 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-09-29 14:45:27,656 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 14:45:27,656 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-09-29 14:45:27,656 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-09-29 14:45:27,656 INFO L133 ssoRankerPreferences]: Filename of dumped script: equal-array-sums-locked.bpl_BEv2_Iteration1_Lasso [2022-09-29 14:45:27,656 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-09-29 14:45:27,656 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-09-29 14:45:27,665 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 14:45:27,680 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 14:45:27,683 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 14:45:27,686 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 14:45:27,747 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-09-29 14:45:27,749 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-09-29 14:45:27,751 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 14:45:27,751 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 14:45:27,752 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 14:45:27,753 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 14:45:27,755 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 14:45:27,761 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-09-29 14:45:27,762 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-09-29 14:45:27,762 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-09-29 14:45:27,762 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-09-29 14:45:27,767 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-09-29 14:45:27,768 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-09-29 14:45:27,795 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-09-29 14:45:27,821 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2022-09-29 14:45:27,821 INFO L444 ModelExtractionUtils]: 4 out of 10 variables were initially zero. Simplification set additionally 3 variables to zero. [2022-09-29 14:45:27,822 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 14:45:27,822 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 14:45:27,824 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) [2022-09-29 14:45:27,825 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 14:45:27,826 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-09-29 14:45:27,844 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2022-09-29 14:45:27,844 INFO L513 LassoAnalysis]: Proved termination. [2022-09-29 14:45:27,845 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(n, thread1Thread1of1ForFork0_i#1) = 1*n - 1*thread1Thread1of1ForFork0_i#1 Supporting invariants [] [2022-09-29 14:45:27,863 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 14:45:27,865 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-09-29 14:45:27,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 14:45:27,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 14:45:27,896 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjunts are in the unsatisfiable core [2022-09-29 14:45:27,896 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-29 14:45:27,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 14:45:27,909 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2022-09-29 14:45:27,910 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-29 14:45:27,929 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 14:45:27,963 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 [2022-09-29 14:45:27,965 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand currently 28 states, but on-demand construction may add more states Second 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) [2022-09-29 14:45:28,038 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand currently 28 states, but on-demand construction may add more states. Second 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 70 states and 164 transitions. Complement of second has 6 states. [2022-09-29 14:45:28,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-09-29 14:45:28,046 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) [2022-09-29 14:45:28,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 32 transitions. [2022-09-29 14:45:28,049 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 32 transitions. Stem has 3 letters. Loop has 2 letters. [2022-09-29 14:45:28,050 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-09-29 14:45:28,050 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 32 transitions. Stem has 5 letters. Loop has 2 letters. [2022-09-29 14:45:28,050 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-09-29 14:45:28,050 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 32 transitions. Stem has 3 letters. Loop has 4 letters. [2022-09-29 14:45:28,050 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-09-29 14:45:28,051 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 70 states and 164 transitions. [2022-09-29 14:45:28,059 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 10 [2022-09-29 14:45:28,063 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 70 states to 43 states and 102 transitions. [2022-09-29 14:45:28,064 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 21 [2022-09-29 14:45:28,064 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 32 [2022-09-29 14:45:28,065 INFO L73 IsDeterministic]: Start isDeterministic. Operand 43 states and 102 transitions. [2022-09-29 14:45:28,065 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-09-29 14:45:28,065 INFO L218 hiAutomatonCegarLoop]: Abstraction has 43 states and 102 transitions. [2022-09-29 14:45:28,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states and 102 transitions. [2022-09-29 14:45:28,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 35. [2022-09-29 14:45:28,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 35 states have (on average 2.4857142857142858) internal successors, (87), 34 states have internal predecessors, (87), 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 14:45:28,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 87 transitions. [2022-09-29 14:45:28,090 INFO L240 hiAutomatonCegarLoop]: Abstraction has 35 states and 87 transitions. [2022-09-29 14:45:28,090 INFO L428 stractBuchiCegarLoop]: Abstraction has 35 states and 87 transitions. [2022-09-29 14:45:28,090 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-09-29 14:45:28,091 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 35 states and 87 transitions. [2022-09-29 14:45:28,092 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 10 [2022-09-29 14:45:28,092 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-09-29 14:45:28,092 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-09-29 14:45:28,092 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-09-29 14:45:28,092 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-09-29 14:45:28,093 INFO L733 eck$LassoCheckResult]: Stem: 247#[ULTIMATE.startENTRY]don't care [117] ULTIMATE.startENTRY-->L26: Formula: (and (= v_x_10 0) (= v_y_6 0)) InVars {} OutVars{y=v_y_6, x=v_x_10} AuxVars[] AssignedVars[y, x] 249#[L26]don't care [108] L26-->thread1ENTRY: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_i#1=|v_thread1Thread1of1ForFork0_i#1_14|, thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_i#1, thread1Thread1of1ForFork0_thidvar0] 265#[L26-1, thread1ENTRY]don't care [111] L26-1-->thread2ENTRY: Formula: (and (= 2 v_thread2Thread1of1ForFork1_thidvar1_2) (= 2 v_thread2Thread1of1ForFork1_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork1_j#1=|v_thread2Thread1of1ForFork1_j#1_14|, thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_2, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_j#1, thread2Thread1of1ForFork1_thidvar0, thread2Thread1of1ForFork1_thidvar1] 255#[L27, thread1ENTRY, thread2ENTRY]don't care [94] thread2ENTRY-->L54-1: Formula: (= |v_thread2Thread1of1ForFork1_j#1_1| 0) InVars {} OutVars{thread2Thread1of1ForFork1_j#1=|v_thread2Thread1of1ForFork1_j#1_1|} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_j#1] 241#[L27, thread1ENTRY, L54-1]don't care [2022-09-29 14:45:28,093 INFO L735 eck$LassoCheckResult]: Loop: 241#[L27, thread1ENTRY, L54-1]don't care [129] L54-1-->L56: Formula: (and v_m_60 (< |v_thread2Thread1of1ForFork1_j#1_23| v_n_15) (not v_m_61)) InVars {n=v_n_15, m=v_m_61, thread2Thread1of1ForFork1_j#1=|v_thread2Thread1of1ForFork1_j#1_23|} OutVars{n=v_n_15, m=v_m_60, thread2Thread1of1ForFork1_j#1=|v_thread2Thread1of1ForFork1_j#1_23|} AuxVars[] AssignedVars[m] 243#[L27, thread1ENTRY, L56]don't care [131] L56-->L54-1: Formula: (and (= v_y_22 (+ v_y_23 (select v_A_17 |v_thread2Thread1of1ForFork1_j#1_30|))) (not v_m_76) (= |v_thread2Thread1of1ForFork1_j#1_29| (+ |v_thread2Thread1of1ForFork1_j#1_30| 1))) InVars {A=v_A_17, y=v_y_23, thread2Thread1of1ForFork1_j#1=|v_thread2Thread1of1ForFork1_j#1_30|} OutVars{A=v_A_17, m=v_m_76, y=v_y_22, thread2Thread1of1ForFork1_j#1=|v_thread2Thread1of1ForFork1_j#1_29|} AuxVars[] AssignedVars[m, y, thread2Thread1of1ForFork1_j#1] 241#[L27, thread1ENTRY, L54-1]don't care [2022-09-29 14:45:28,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 14:45:28,094 INFO L85 PathProgramCache]: Analyzing trace with hash 4516391, now seen corresponding path program 1 times [2022-09-29 14:45:28,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 14:45:28,094 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501160722] [2022-09-29 14:45:28,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 14:45:28,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 14:45:28,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 14:45:28,104 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-09-29 14:45:28,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 14:45:28,111 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-09-29 14:45:28,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 14:45:28,112 INFO L85 PathProgramCache]: Analyzing trace with hash 5091, now seen corresponding path program 1 times [2022-09-29 14:45:28,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 14:45:28,113 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899001938] [2022-09-29 14:45:28,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 14:45:28,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 14:45:28,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 14:45:28,123 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-09-29 14:45:28,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 14:45:28,130 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-09-29 14:45:28,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 14:45:28,130 INFO L85 PathProgramCache]: Analyzing trace with hash 45288585, now seen corresponding path program 1 times [2022-09-29 14:45:28,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 14:45:28,131 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337895041] [2022-09-29 14:45:28,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 14:45:28,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 14:45:28,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 14:45:28,138 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-09-29 14:45:28,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 14:45:28,142 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-09-29 14:45:28,187 INFO L210 LassoAnalysis]: Preferences: [2022-09-29 14:45:28,187 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-09-29 14:45:28,187 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-09-29 14:45:28,187 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-09-29 14:45:28,187 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-09-29 14:45:28,187 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 14:45:28,187 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-09-29 14:45:28,187 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-09-29 14:45:28,187 INFO L133 ssoRankerPreferences]: Filename of dumped script: equal-array-sums-locked.bpl_BEv2_Iteration2_Lasso [2022-09-29 14:45:28,187 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-09-29 14:45:28,188 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-09-29 14:45:28,188 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 14:45:28,190 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 14:45:28,192 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 14:45:28,194 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 14:45:28,198 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 14:45:28,207 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 14:45:28,209 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 14:45:28,268 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-09-29 14:45:28,268 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-09-29 14:45:28,268 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 14:45:28,268 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 14:45:28,269 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 14:45:28,271 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 14:45:28,285 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 14:45:28,292 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-09-29 14:45:28,292 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-09-29 14:45:28,292 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-09-29 14:45:28,292 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-09-29 14:45:28,292 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-09-29 14:45:28,293 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-09-29 14:45:28,293 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-09-29 14:45:28,308 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-09-29 14:45:28,325 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 14:45:28,325 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 14:45:28,326 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 14:45:28,327 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 14:45:28,328 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 14:45:28,329 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 14:45:28,335 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-09-29 14:45:28,336 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-09-29 14:45:28,336 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-09-29 14:45:28,336 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-09-29 14:45:28,338 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-09-29 14:45:28,338 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-09-29 14:45:28,355 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-09-29 14:45:28,372 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 14:45:28,372 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 14:45:28,372 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 14:45:28,373 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 14:45:28,374 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 14:45:28,383 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 14:45:28,389 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-09-29 14:45:28,389 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-09-29 14:45:28,390 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-09-29 14:45:28,390 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-09-29 14:45:28,392 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-09-29 14:45:28,393 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-09-29 14:45:28,395 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-09-29 14:45:28,411 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 14:45:28,411 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 14:45:28,412 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 14:45:28,452 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 14:45:28,455 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 14:45:28,455 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 14:45:28,462 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-09-29 14:45:28,463 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-09-29 14:45:28,463 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-09-29 14:45:28,463 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-09-29 14:45:28,463 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-09-29 14:45:28,464 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-09-29 14:45:28,464 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-09-29 14:45:28,472 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-09-29 14:45:28,491 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 14:45:28,491 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 14:45:28,491 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 14:45:28,492 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 14:45:28,493 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 14:45:28,513 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 14:45:28,520 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-09-29 14:45:28,521 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-09-29 14:45:28,521 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-09-29 14:45:28,521 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-09-29 14:45:28,524 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-09-29 14:45:28,524 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-09-29 14:45:28,539 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-09-29 14:45:28,545 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2022-09-29 14:45:28,545 INFO L444 ModelExtractionUtils]: 4 out of 10 variables were initially zero. Simplification set additionally 3 variables to zero. [2022-09-29 14:45:28,545 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 14:45:28,546 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 14:45:28,547 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) [2022-09-29 14:45:28,548 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 [2022-09-29 14:45:28,549 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-09-29 14:45:28,563 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2022-09-29 14:45:28,563 INFO L513 LassoAnalysis]: Proved termination. [2022-09-29 14:45:28,563 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(thread2Thread1of1ForFork1_j#1, n) = -1*thread2Thread1of1ForFork1_j#1 + 1*n Supporting invariants [] [2022-09-29 14:45:28,581 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 14:45:28,582 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-09-29 14:45:28,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 14:45:28,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 14:45:28,604 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 2 conjunts are in the unsatisfiable core [2022-09-29 14:45:28,604 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-29 14:45:28,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 14:45:28,611 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2022-09-29 14:45:28,611 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-29 14:45:28,623 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 14:45:28,623 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 [2022-09-29 14:45:28,623 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 35 states and 87 transitions. cyclomatic complexity: 60 Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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 14:45:28,653 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 35 states and 87 transitions. cyclomatic complexity: 60. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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 82 states and 201 transitions. Complement of second has 6 states. [2022-09-29 14:45:28,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-09-29 14:45:28,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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 14:45:28,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 26 transitions. [2022-09-29 14:45:28,654 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 26 transitions. Stem has 4 letters. Loop has 2 letters. [2022-09-29 14:45:28,654 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-09-29 14:45:28,654 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 26 transitions. Stem has 6 letters. Loop has 2 letters. [2022-09-29 14:45:28,655 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-09-29 14:45:28,655 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 26 transitions. Stem has 4 letters. Loop has 4 letters. [2022-09-29 14:45:28,655 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-09-29 14:45:28,655 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 82 states and 201 transitions. [2022-09-29 14:45:28,658 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-09-29 14:45:28,658 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 82 states to 0 states and 0 transitions. [2022-09-29 14:45:28,658 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-09-29 14:45:28,658 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-09-29 14:45:28,658 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-09-29 14:45:28,658 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-29 14:45:28,658 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-09-29 14:45:28,658 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-09-29 14:45:28,659 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-09-29 14:45:28,659 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-09-29 14:45:28,659 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-09-29 14:45:28,659 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-09-29 14:45:28,659 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-09-29 14:45:28,667 INFO L202 PluginConnector]: Adding new model equal-array-sums-locked.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.09 02:45:28 BoogieIcfgContainer [2022-09-29 14:45:28,667 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-09-29 14:45:28,667 INFO L158 Benchmark]: Toolchain (without parser) took 1977.07ms. Allocated memory was 189.8MB in the beginning and 228.6MB in the end (delta: 38.8MB). Free memory was 151.6MB in the beginning and 150.0MB in the end (delta: 1.7MB). Peak memory consumption was 39.9MB. Max. memory is 8.0GB. [2022-09-29 14:45:28,668 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.12ms. Allocated memory is still 189.8MB. Free memory was 152.8MB in the beginning and 152.6MB in the end (delta: 143.4kB). There was no memory consumed. Max. memory is 8.0GB. [2022-09-29 14:45:28,669 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.74ms. Allocated memory is still 189.8MB. Free memory was 151.5MB in the beginning and 149.6MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-09-29 14:45:28,669 INFO L158 Benchmark]: Boogie Preprocessor took 11.31ms. Allocated memory is still 189.8MB. Free memory was 149.6MB in the beginning and 148.7MB in the end (delta: 902.8kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-09-29 14:45:28,669 INFO L158 Benchmark]: RCFGBuilder took 194.02ms. Allocated memory is still 189.8MB. Free memory was 148.7MB in the beginning and 139.6MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2022-09-29 14:45:28,671 INFO L158 Benchmark]: BuchiAutomizer took 1741.38ms. Allocated memory was 189.8MB in the beginning and 228.6MB in the end (delta: 38.8MB). Free memory was 139.4MB in the beginning and 150.0MB in the end (delta: -10.6MB). Peak memory consumption was 27.3MB. Max. memory is 8.0GB. [2022-09-29 14:45:28,674 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 0.12ms. Allocated memory is still 189.8MB. Free memory was 152.8MB in the beginning and 152.6MB in the end (delta: 143.4kB). There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 26.74ms. Allocated memory is still 189.8MB. Free memory was 151.5MB in the beginning and 149.6MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 11.31ms. Allocated memory is still 189.8MB. Free memory was 149.6MB in the beginning and 148.7MB in the end (delta: 902.8kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 194.02ms. Allocated memory is still 189.8MB. Free memory was 148.7MB in the beginning and 139.6MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * BuchiAutomizer took 1741.38ms. Allocated memory was 189.8MB in the beginning and 228.6MB in the end (delta: 38.8MB). Free memory was 139.4MB in the beginning and 150.0MB in the end (delta: -10.6MB). Peak memory consumption was 27.3MB. 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 n + -1 * i and consists of 4 locations. One deterministic module has affine ranking function -1 * j + n and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.6s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 0.9s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 1. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 8 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 44 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 42 mSDsluCounter, 17 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 26 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 71 IncrementalHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 9 mSDtfsCounter, 71 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital36 mio100 ax100 hnf100 lsp64 ukn91 mio100 lsp57 div100 bol100 ite100 ukn100 eq183 hnf95 smp100 dnf100 smp100 tf100 neg100 sie109 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 94ms VariablesStem: 1 VariablesLoop: 3 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, 38 PlacesBefore, 20 PlacesAfterwards, 33 TransitionsBefore, 15 TransitionsAfterwards, 336 CoEnabledTransitionPairs, 3 FixpointIterations, 2 TrivialSequentialCompositions, 16 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 18 TotalNumberOfCompositions, 296 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 261, positive: 252, positive conditional: 0, positive unconditional: 252, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 212, positive: 205, positive conditional: 0, positive unconditional: 205, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 212, positive: 201, positive conditional: 0, positive unconditional: 201, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 11, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 41, positive: 7, positive conditional: 0, positive unconditional: 7, negative: 34, negative conditional: 0, negative unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 261, positive: 47, positive conditional: 0, positive unconditional: 47, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 212, unknown conditional: 0, unknown unconditional: 212] , Statistics on independence cache: Total cache size (in pairs): 16, Positive cache size: 14, Positive conditional cache size: 0, Positive unconditional cache size: 14, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2 RESULT: Ultimate proved your program to be correct! [2022-09-29 14:45:28,700 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 [2022-09-29 14:45:28,910 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2022-09-29 14:45:29,111 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request...