/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/MirabelleConcurrentIncrement.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.fs.omega-petrinet-ed1a3e5-m [2022-09-29 14:47:53,470 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-29 14:47:53,472 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-29 14:47:53,513 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-09-29 14:47:53,532 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-29 14:47:53,534 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-29 14:47:53,535 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-29 14:47:53,538 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-29 14:47:53,539 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-29 14:47:53,539 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-29 14:47:53,541 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-29 14:47:53,546 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-29 14:47:53,548 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-29 14:47:53,549 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-29 14:47:53,551 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-29 14:47:53,552 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-29 14:47:53,558 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-09-29 14:47:53,567 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-29 14:47:53,568 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-29 14:47:53,568 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-29 14:47:53,569 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 14:47:53,600 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-29 14:47:53,600 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-29 14:47:53,600 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-09-29 14:47:53,601 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-09-29 14:47:53,602 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-29 14:47:53,602 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-29 14:47:53,602 INFO L138 SettingsManager]: * Use SBE=true [2022-09-29 14:47:53,602 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-09-29 14:47:53,602 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-09-29 14:47:53,602 INFO L138 SettingsManager]: * Use old map elimination=false [2022-09-29 14:47:53,603 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-09-29 14:47:53,603 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-09-29 14:47:53,604 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-09-29 14:47:53,604 INFO L138 SettingsManager]: * Automaton type for concurrent programs=BUCHI_PETRI_NET [2022-09-29 14:47:53,604 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-29 14:47:53,604 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-29 14:47:53,604 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-09-29 14:47:53,604 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-29 14:47:53,604 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-29 14:47:53,605 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-29 14:47:53,605 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-09-29 14:47:53,605 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-09-29 14:47:53,605 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-09-29 14:47:53,605 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-29 14:47:53,605 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-29 14:47:53,605 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-09-29 14:47:53,605 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-29 14:47:53,606 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-09-29 14:47:53,606 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-29 14:47:53,606 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-29 14:47:53,606 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-29 14:47:53,606 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-29 14:47:53,607 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-09-29 14:47:53,608 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-09-29 14:47:53,805 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-29 14:47:53,824 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-29 14:47:53,826 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-29 14:47:53,827 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-09-29 14:47:53,828 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-09-29 14:47:53,829 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/MirabelleConcurrentIncrement.bpl [2022-09-29 14:47:53,829 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/MirabelleConcurrentIncrement.bpl' [2022-09-29 14:47:53,845 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-29 14:47:53,846 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-09-29 14:47:53,852 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-09-29 14:47:53,852 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-09-29 14:47:53,852 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-09-29 14:47:53,863 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "MirabelleConcurrentIncrement.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 02:47:53" (1/1) ... [2022-09-29 14:47:53,873 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "MirabelleConcurrentIncrement.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 02:47:53" (1/1) ... [2022-09-29 14:47:53,880 INFO L137 Inliner]: procedures = 3, calls = 2, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-09-29 14:47:53,881 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-09-29 14:47:53,883 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-29 14:47:53,883 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-29 14:47:53,884 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-29 14:47:53,890 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "MirabelleConcurrentIncrement.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 02:47:53" (1/1) ... [2022-09-29 14:47:53,891 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "MirabelleConcurrentIncrement.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 02:47:53" (1/1) ... [2022-09-29 14:47:53,892 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "MirabelleConcurrentIncrement.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 02:47:53" (1/1) ... [2022-09-29 14:47:53,892 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "MirabelleConcurrentIncrement.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 02:47:53" (1/1) ... [2022-09-29 14:47:53,894 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "MirabelleConcurrentIncrement.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 02:47:53" (1/1) ... [2022-09-29 14:47:53,897 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "MirabelleConcurrentIncrement.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 02:47:53" (1/1) ... [2022-09-29 14:47:53,898 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "MirabelleConcurrentIncrement.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 02:47:53" (1/1) ... [2022-09-29 14:47:53,900 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-29 14:47:53,901 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-29 14:47:53,901 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-29 14:47:53,902 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-29 14:47:53,903 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "MirabelleConcurrentIncrement.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 02:47:53" (1/1) ... [2022-09-29 14:47:53,920 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 14:47:53,927 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 14:47:53,945 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 14:47:53,952 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 14:47:53,988 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-09-29 14:47:53,989 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-29 14:47:53,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-29 14:47:53,989 INFO L124 BoogieDeclarations]: Specification and implementation of procedure T1 given in one single declaration [2022-09-29 14:47:53,989 INFO L130 BoogieDeclarations]: Found specification of procedure T1 [2022-09-29 14:47:53,989 INFO L138 BoogieDeclarations]: Found implementation of procedure T1 [2022-09-29 14:47:53,989 INFO L124 BoogieDeclarations]: Specification and implementation of procedure T2 given in one single declaration [2022-09-29 14:47:53,989 INFO L130 BoogieDeclarations]: Found specification of procedure T2 [2022-09-29 14:47:53,989 INFO L138 BoogieDeclarations]: Found implementation of procedure T2 [2022-09-29 14:47:53,990 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 14:47:54,027 INFO L234 CfgBuilder]: Building ICFG [2022-09-29 14:47:54,028 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-29 14:47:54,086 INFO L275 CfgBuilder]: Performing block encoding [2022-09-29 14:47:54,093 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-29 14:47:54,093 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-09-29 14:47:54,095 INFO L202 PluginConnector]: Adding new model MirabelleConcurrentIncrement.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.09 02:47:54 BoogieIcfgContainer [2022-09-29 14:47:54,095 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-29 14:47:54,096 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-09-29 14:47:54,096 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-09-29 14:47:54,102 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-09-29 14:47:54,102 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-09-29 14:47:54,103 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "MirabelleConcurrentIncrement.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 02:47:53" (1/2) ... [2022-09-29 14:47:54,104 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6037978b and model type MirabelleConcurrentIncrement.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.09 02:47:54, skipping insertion in model container [2022-09-29 14:47:54,105 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-09-29 14:47:54,105 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "MirabelleConcurrentIncrement.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.09 02:47:54" (2/2) ... [2022-09-29 14:47:54,112 INFO L322 chiAutomizerObserver]: Analyzing ICFG MirabelleConcurrentIncrement.bpl [2022-09-29 14:47:54,175 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-09-29 14:47:54,222 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 23 places, 22 transitions, 66 flow [2022-09-29 14:47:54,247 INFO L175 PetriNetUnfolderBase]: Searched whole Unfolding. [2022-09-29 14:47:54,247 INFO L123 PetriNetUnfolderBase]: 3/18 cut-off events. [2022-09-29 14:47:54,248 INFO L124 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2022-09-29 14:47:54,250 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29 conditions, 18 events. 3/18 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 18 event pairs, 0 based on Foata normal form. 0/15 useless extension candidates. Maximal degree in co-relation 13. Up to 3 conditions per place. [2022-09-29 14:47:54,250 INFO L82 GeneralOperation]: Start removeDead. Operand has 23 places, 22 transitions, 66 flow [2022-09-29 14:47:54,253 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 21 places, 18 transitions, 54 flow [2022-09-29 14:47:54,256 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-09-29 14:47:54,268 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 21 places, 18 transitions, 54 flow [2022-09-29 14:47:54,270 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 21 places, 18 transitions, 54 flow [2022-09-29 14:47:54,271 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 21 places, 18 transitions, 54 flow [2022-09-29 14:47:54,277 INFO L175 PetriNetUnfolderBase]: Searched whole Unfolding. [2022-09-29 14:47:54,277 INFO L123 PetriNetUnfolderBase]: 3/18 cut-off events. [2022-09-29 14:47:54,277 INFO L124 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2022-09-29 14:47:54,278 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29 conditions, 18 events. 3/18 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 19 event pairs, 0 based on Foata normal form. 0/15 useless extension candidates. Maximal degree in co-relation 13. Up to 3 conditions per place. [2022-09-29 14:47:54,278 INFO L116 LiptonReduction]: Number of co-enabled transitions 56 [2022-09-29 14:47:54,371 INFO L131 LiptonReduction]: Checked pairs total: 36 [2022-09-29 14:47:54,372 INFO L133 LiptonReduction]: Total number of compositions: 5 [2022-09-29 14:47:54,383 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-09-29 14:47:54,383 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-09-29 14:47:54,383 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-09-29 14:47:54,383 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-09-29 14:47:54,383 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-09-29 14:47:54,383 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-09-29 14:47:54,383 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-09-29 14:47:54,384 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiPetriNetCegarLoop ======== [2022-09-29 14:47:54,384 INFO L68 IsEmptyBuchi]: Start isEmptyBuchi. Operand has 16 places, 13 transitions, 44 flow [2022-09-29 14:47:54,387 INFO L76 AcceptsInfiniteWords]: Start buchiAccepts. Operand has 16 places, 13 transitions, 44 flow [2022-09-29 14:47:54,392 INFO L82 AcceptsInfiniteWords]: Finished buchiAccepts. [2022-09-29 14:47:54,392 INFO L157 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2022-09-29 14:47:54,392 INFO L123 PetriNetUnfolderBase]: 0/2 cut-off events. [2022-09-29 14:47:54,392 INFO L124 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2022-09-29 14:47:54,392 INFO L78 IsEmptyBuchi]: Finished isEmptyBuchi language is not empty [2022-09-29 14:47:54,395 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-09-29 14:47:54,395 INFO L68 IsEmptyBuchi]: Start isEmptyBuchi. Operand has 16 places, 13 transitions, 44 flow [2022-09-29 14:47:54,397 INFO L76 AcceptsInfiniteWords]: Start buchiAccepts. Operand has 16 places, 13 transitions, 44 flow [2022-09-29 14:47:54,397 INFO L82 AcceptsInfiniteWords]: Finished buchiAccepts. [2022-09-29 14:47:54,398 INFO L157 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2022-09-29 14:47:54,398 INFO L123 PetriNetUnfolderBase]: 0/2 cut-off events. [2022-09-29 14:47:54,398 INFO L124 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2022-09-29 14:47:54,398 INFO L78 IsEmptyBuchi]: Finished isEmptyBuchi language is not empty [2022-09-29 14:47:54,420 INFO L733 eck$LassoCheckResult]: Stem: 27#[ULTIMATE.startENTRY]true [24] ULTIMATE.startENTRY-->L18: Formula: (= v_y_1 v_x_1) InVars {y=v_y_1, x=v_x_1} OutVars{y=v_y_1, x=v_x_1} AuxVars[] AssignedVars[] 29#[L18]true [48] L18-->L31: Formula: (= v_T1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{T1Thread1of1ForFork0_thidvar0=v_T1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[T1Thread1of1ForFork0_thidvar0] 31#[L31, L18-1]true [2022-09-29 14:47:54,420 INFO L735 eck$LassoCheckResult]: Loop: 31#[L31, L18-1]true [57] L31-->L31: Formula: (and (= (+ v_x_9 1) v_x_8) (< v_x_9 v_n_7)) InVars {n=v_n_7, x=v_x_9} OutVars{n=v_n_7, x=v_x_8} AuxVars[] AssignedVars[x] 31#[L31, L18-1]true [2022-09-29 14:47:54,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 14:47:54,425 INFO L85 PathProgramCache]: Analyzing trace with hash 1753, now seen corresponding path program 1 times [2022-09-29 14:47:54,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 14:47:54,437 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467567888] [2022-09-29 14:47:54,437 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 14:47:54,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 14:47:54,492 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-09-29 14:47:54,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 14:47:54,505 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-09-29 14:47:54,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 14:47:54,507 INFO L85 PathProgramCache]: Analyzing trace with hash 88, now seen corresponding path program 1 times [2022-09-29 14:47:54,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 14:47:54,508 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008768893] [2022-09-29 14:47:54,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 14:47:54,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 14:47:54,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 14:47:54,516 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-09-29 14:47:54,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 14:47:54,520 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-09-29 14:47:54,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 14:47:54,522 INFO L85 PathProgramCache]: Analyzing trace with hash 54400, now seen corresponding path program 1 times [2022-09-29 14:47:54,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 14:47:54,522 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3426031] [2022-09-29 14:47:54,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 14:47:54,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 14:47:54,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 14:47:54,528 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-09-29 14:47:54,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 14:47:54,533 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-09-29 14:47:54,579 INFO L210 LassoAnalysis]: Preferences: [2022-09-29 14:47:54,579 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-09-29 14:47:54,579 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-09-29 14:47:54,580 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-09-29 14:47:54,580 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-09-29 14:47:54,580 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 14:47:54,580 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-09-29 14:47:54,580 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-09-29 14:47:54,580 INFO L133 ssoRankerPreferences]: Filename of dumped script: MirabelleConcurrentIncrement.bpl_BEv2_Iteration1_Loop [2022-09-29 14:47:54,580 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-09-29 14:47:54,581 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-09-29 14:47:54,592 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 14:47:54,624 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-09-29 14:47:54,625 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-09-29 14:47:54,627 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 14:47:54,627 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 14:47:54,631 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 14:47:54,633 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 14:47:54,634 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-09-29 14:47:54,634 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-09-29 14:47:54,659 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 14:47:54,660 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 14:47:54,660 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 14:47:54,661 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 14:47:54,662 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 14:47:54,663 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-09-29 14:47:54,663 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-09-29 14:47:54,797 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-09-29 14:47:54,801 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 14:47:54,801 INFO L210 LassoAnalysis]: Preferences: [2022-09-29 14:47:54,801 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-09-29 14:47:54,801 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-09-29 14:47:54,801 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-09-29 14:47:54,802 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-09-29 14:47:54,802 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 14:47:54,802 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-09-29 14:47:54,802 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-09-29 14:47:54,802 INFO L133 ssoRankerPreferences]: Filename of dumped script: MirabelleConcurrentIncrement.bpl_BEv2_Iteration1_Loop [2022-09-29 14:47:54,802 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-09-29 14:47:54,802 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-09-29 14:47:54,803 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 14:47:54,831 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-09-29 14:47:54,835 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-09-29 14:47:54,837 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 14:47:54,837 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 14:47:54,838 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 14:47:54,840 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 14:47:54,845 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 14:47:54,853 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-09-29 14:47:54,854 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-09-29 14:47:54,854 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-09-29 14:47:54,854 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-09-29 14:47:54,854 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-09-29 14:47:54,856 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-09-29 14:47:54,856 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-09-29 14:47:54,858 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-09-29 14:47:54,865 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2022-09-29 14:47:54,865 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-09-29 14:47:54,866 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 14:47:54,866 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 14:47:54,868 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 14:47:54,872 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 14:47:54,873 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-09-29 14:47:54,873 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-09-29 14:47:54,873 INFO L513 LassoAnalysis]: Proved termination. [2022-09-29 14:47:54,874 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(x, n) = -1*x + 1*n Supporting invariants [] [2022-09-29 14:47:54,893 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 14:47:54,897 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-09-29 14:47:54,940 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 14:47:54,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 14:47:54,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 14:47:54,988 INFO L263 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2022-09-29 14:47:54,989 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-29 14:47:55,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 14:47:55,006 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2022-09-29 14:47:55,008 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-29 14:47:55,008 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 14:47:55,044 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 14:47:55,045 INFO L162 BuchiComplementFKV]: Start buchiComplementFKV with optimization HEIMAT2. Operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-29 14:47:55,136 INFO L171 BuchiComplementFKV]: Finished buchiComplementFKV with optimization HEIMAT2. Operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 5 states and 211 transitions.4 powerset states2 rank states. The highest rank that occured is 1 [2022-09-29 14:47:55,138 INFO L54 IntersectBuchiEager]: Starting Intersection [2022-09-29 14:47:55,140 INFO L61 IntersectBuchiEager]: Exiting Intersection [2022-09-29 14:47:55,144 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 14:47:55,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-29 14:47:55,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 81 transitions. [2022-09-29 14:47:55,152 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 81 transitions. Stem has 2 letters. Loop has 1 letters. [2022-09-29 14:47:55,153 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-09-29 14:47:55,153 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 81 transitions. Stem has 3 letters. Loop has 1 letters. [2022-09-29 14:47:55,153 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-09-29 14:47:55,153 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 81 transitions. Stem has 2 letters. Loop has 2 letters. [2022-09-29 14:47:55,153 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-09-29 14:47:55,153 INFO L428 stractBuchiCegarLoop]: Abstraction has has 26 places, 198 transitions, 1068 flow [2022-09-29 14:47:55,153 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-09-29 14:47:55,153 INFO L68 IsEmptyBuchi]: Start isEmptyBuchi. Operand has 26 places, 198 transitions, 1068 flow [2022-09-29 14:47:55,155 INFO L76 AcceptsInfiniteWords]: Start buchiAccepts. Operand has 26 places, 198 transitions, 1068 flow [2022-09-29 14:47:55,156 INFO L82 AcceptsInfiniteWords]: Finished buchiAccepts. [2022-09-29 14:47:55,156 INFO L76 AcceptsInfiniteWords]: Start buchiAccepts. Operand has 26 places, 198 transitions, 1068 flow [2022-09-29 14:47:55,158 INFO L82 AcceptsInfiniteWords]: Finished buchiAccepts. [2022-09-29 14:47:55,158 INFO L157 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2022-09-29 14:47:55,158 INFO L123 PetriNetUnfolderBase]: 1/5 cut-off events. [2022-09-29 14:47:55,158 INFO L124 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2022-09-29 14:47:55,158 INFO L78 IsEmptyBuchi]: Finished isEmptyBuchi language is not empty [2022-09-29 14:47:55,159 INFO L733 eck$LassoCheckResult]: Stem: 27#[ULTIMATE.startENTRY]true [24] ULTIMATE.startENTRY-->L18: Formula: (= v_y_1 v_x_1) InVars {y=v_y_1, x=v_x_1} OutVars{y=v_y_1, x=v_x_1} AuxVars[] AssignedVars[] 29#[L18]true [48] L18-->L31: Formula: (= v_T1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{T1Thread1of1ForFork0_thidvar0=v_T1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[T1Thread1of1ForFork0_thidvar0] 31#[L31, L18-1]true [51] L18-1-->L39: Formula: (= v_T2Thread1of1ForFork1_thidvar0_2 2) InVars {} OutVars{T2Thread1of1ForFork1_thidvar0=v_T2Thread1of1ForFork1_thidvar0_2} AuxVars[] AssignedVars[T2Thread1of1ForFork1_thidvar0] 77#[L31, L39, L19]true [2022-09-29 14:47:55,159 INFO L735 eck$LassoCheckResult]: Loop: 77#[L31, L39, L19]true [60] L39-->L39: Formula: (and (< v_y_13 v_n_11) (= v_y_12 (+ v_y_13 1))) InVars {n=v_n_11, y=v_y_13} OutVars{n=v_n_11, y=v_y_12} AuxVars[] AssignedVars[y] 77#[L31, L39, L19]true [2022-09-29 14:47:55,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 14:47:55,163 INFO L85 PathProgramCache]: Analyzing trace with hash 54394, now seen corresponding path program 1 times [2022-09-29 14:47:55,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 14:47:55,163 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165884434] [2022-09-29 14:47:55,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 14:47:55,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 14:47:55,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 14:47:55,167 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-09-29 14:47:55,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 14:47:55,173 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-09-29 14:47:55,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 14:47:55,173 INFO L85 PathProgramCache]: Analyzing trace with hash 91, now seen corresponding path program 1 times [2022-09-29 14:47:55,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 14:47:55,174 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858358159] [2022-09-29 14:47:55,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 14:47:55,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 14:47:55,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 14:47:55,180 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-09-29 14:47:55,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 14:47:55,183 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-09-29 14:47:55,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 14:47:55,183 INFO L85 PathProgramCache]: Analyzing trace with hash 1686274, now seen corresponding path program 1 times [2022-09-29 14:47:55,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 14:47:55,184 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970251403] [2022-09-29 14:47:55,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 14:47:55,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 14:47:55,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 14:47:55,192 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-09-29 14:47:55,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 14:47:55,199 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-09-29 14:47:55,213 INFO L210 LassoAnalysis]: Preferences: [2022-09-29 14:47:55,213 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-09-29 14:47:55,213 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-09-29 14:47:55,213 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-09-29 14:47:55,213 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-09-29 14:47:55,213 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 14:47:55,213 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-09-29 14:47:55,214 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-09-29 14:47:55,214 INFO L133 ssoRankerPreferences]: Filename of dumped script: MirabelleConcurrentIncrement.bpl_BEv2_Iteration2_Loop [2022-09-29 14:47:55,214 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-09-29 14:47:55,214 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-09-29 14:47:55,215 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 14:47:55,234 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-09-29 14:47:55,235 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-09-29 14:47:55,235 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 14:47:55,235 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 14:47:55,240 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 14:47:55,242 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 14:47:55,243 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-09-29 14:47:55,243 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-09-29 14:47:55,283 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2022-09-29 14:47:55,283 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 14:47:55,284 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 14:47:55,285 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 14:47:55,285 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 14:47:55,287 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-09-29 14:47:55,287 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-09-29 14:47:55,387 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-09-29 14:47:55,390 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 14:47:55,390 INFO L210 LassoAnalysis]: Preferences: [2022-09-29 14:47:55,391 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-09-29 14:47:55,391 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-09-29 14:47:55,391 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-09-29 14:47:55,391 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-09-29 14:47:55,391 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 14:47:55,391 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-09-29 14:47:55,391 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-09-29 14:47:55,392 INFO L133 ssoRankerPreferences]: Filename of dumped script: MirabelleConcurrentIncrement.bpl_BEv2_Iteration2_Loop [2022-09-29 14:47:55,392 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-09-29 14:47:55,392 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-09-29 14:47:55,393 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 14:47:55,413 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-09-29 14:47:55,413 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-09-29 14:47:55,413 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 14:47:55,413 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 14:47:55,414 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 14:47:55,415 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 14:47:55,416 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 14:47:55,422 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-09-29 14:47:55,422 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-09-29 14:47:55,422 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-09-29 14:47:55,422 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-09-29 14:47:55,422 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-09-29 14:47:55,423 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-09-29 14:47:55,423 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-09-29 14:47:55,436 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-09-29 14:47:55,439 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2022-09-29 14:47:55,440 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-09-29 14:47:55,440 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 14:47:55,440 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 14:47:55,441 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 14:47:55,442 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 14:47:55,443 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-09-29 14:47:55,443 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-09-29 14:47:55,443 INFO L513 LassoAnalysis]: Proved termination. [2022-09-29 14:47:55,443 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(y, n) = -1*y + 1*n Supporting invariants [] [2022-09-29 14:47:55,458 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 14:47:55,460 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-09-29 14:47:55,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 14:47:55,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 14:47:55,489 INFO L263 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2022-09-29 14:47:55,489 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-29 14:47:55,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 14:47:55,500 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2022-09-29 14:47:55,500 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-29 14:47:55,500 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 14:47:55,501 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 14:47:55,501 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 14:47:55,581 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 5 states and 211 transitions.4 powerset states2 rank states. The highest rank that occured is 1 [2022-09-29 14:47:55,582 INFO L54 IntersectBuchiEager]: Starting Intersection [2022-09-29 14:47:55,610 INFO L61 IntersectBuchiEager]: Exiting Intersection [2022-09-29 14:47:55,610 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 14:47:55,611 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 14:47:55,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 81 transitions. [2022-09-29 14:47:55,612 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 81 transitions. Stem has 3 letters. Loop has 1 letters. [2022-09-29 14:47:55,612 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-09-29 14:47:55,612 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 81 transitions. Stem has 4 letters. Loop has 1 letters. [2022-09-29 14:47:55,612 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-09-29 14:47:55,613 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 81 transitions. Stem has 3 letters. Loop has 2 letters. [2022-09-29 14:47:55,613 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-09-29 14:47:55,613 INFO L428 stractBuchiCegarLoop]: Abstraction has has 36 places, 3008 transitions, 22272 flow [2022-09-29 14:47:55,613 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-09-29 14:47:55,613 INFO L68 IsEmptyBuchi]: Start isEmptyBuchi. Operand has 36 places, 3008 transitions, 22272 flow [2022-09-29 14:47:55,619 INFO L76 AcceptsInfiniteWords]: Start buchiAccepts. Operand has 36 places, 3008 transitions, 22272 flow [2022-09-29 14:47:55,628 INFO L82 AcceptsInfiniteWords]: Finished buchiAccepts. [2022-09-29 14:47:55,630 INFO L76 AcceptsInfiniteWords]: Start buchiAccepts. Operand has 36 places, 3008 transitions, 22272 flow [2022-09-29 14:47:55,637 INFO L82 AcceptsInfiniteWords]: Finished buchiAccepts. [2022-09-29 14:47:55,642 INFO L76 AcceptsInfiniteWords]: Start buchiAccepts. Operand has 36 places, 3008 transitions, 22272 flow [2022-09-29 14:47:55,650 INFO L82 AcceptsInfiniteWords]: Finished buchiAccepts. [2022-09-29 14:47:55,667 INFO L76 AcceptsInfiniteWords]: Start buchiAccepts. Operand has 36 places, 3008 transitions, 22272 flow [2022-09-29 14:47:55,676 INFO L82 AcceptsInfiniteWords]: Finished buchiAccepts. [2022-09-29 14:47:55,682 INFO L76 AcceptsInfiniteWords]: Start buchiAccepts. Operand has 36 places, 3008 transitions, 22272 flow [2022-09-29 14:47:55,692 INFO L82 AcceptsInfiniteWords]: Finished buchiAccepts. [2022-09-29 14:47:55,695 INFO L76 AcceptsInfiniteWords]: Start buchiAccepts. Operand has 36 places, 3008 transitions, 22272 flow [2022-09-29 14:47:55,701 INFO L82 AcceptsInfiniteWords]: Finished buchiAccepts. [2022-09-29 14:47:55,703 INFO L76 AcceptsInfiniteWords]: Start buchiAccepts. Operand has 36 places, 3008 transitions, 22272 flow [2022-09-29 14:47:55,709 INFO L82 AcceptsInfiniteWords]: Finished buchiAccepts. [2022-09-29 14:47:55,713 INFO L76 AcceptsInfiniteWords]: Start buchiAccepts. Operand has 36 places, 3008 transitions, 22272 flow [2022-09-29 14:47:55,720 INFO L82 AcceptsInfiniteWords]: Finished buchiAccepts. [2022-09-29 14:47:55,751 INFO L76 AcceptsInfiniteWords]: Start buchiAccepts. Operand has 36 places, 3008 transitions, 22272 flow [2022-09-29 14:47:55,761 INFO L82 AcceptsInfiniteWords]: Finished buchiAccepts. [2022-09-29 14:47:55,764 INFO L76 AcceptsInfiniteWords]: Start buchiAccepts. Operand has 36 places, 3008 transitions, 22272 flow [2022-09-29 14:47:55,772 INFO L82 AcceptsInfiniteWords]: Finished buchiAccepts. [2022-09-29 14:47:55,776 INFO L76 AcceptsInfiniteWords]: Start buchiAccepts. Operand has 36 places, 3008 transitions, 22272 flow [2022-09-29 14:47:55,789 INFO L82 AcceptsInfiniteWords]: Finished buchiAccepts. [2022-09-29 14:47:55,804 INFO L76 AcceptsInfiniteWords]: Start buchiAccepts. Operand has 36 places, 3008 transitions, 22272 flow [2022-09-29 14:47:55,813 INFO L82 AcceptsInfiniteWords]: Finished buchiAccepts. [2022-09-29 14:47:55,814 INFO L76 AcceptsInfiniteWords]: Start buchiAccepts. Operand has 36 places, 3008 transitions, 22272 flow [2022-09-29 14:47:55,820 INFO L82 AcceptsInfiniteWords]: Finished buchiAccepts. [2022-09-29 14:47:55,828 INFO L175 PetriNetUnfolderBase]: Searched whole Unfolding. [2022-09-29 14:47:55,828 INFO L123 PetriNetUnfolderBase]: 189/290 cut-off events. [2022-09-29 14:47:55,829 INFO L124 PetriNetUnfolderBase]: For 71/71 co-relation queries the response was YES. [2022-09-29 14:47:55,829 INFO L47 CFPrefixIsEmptyBuchi]: Starting emptiness check. [2022-09-29 14:47:55,830 INFO L62 CFPrefixIsEmptyBuchi]: Starting cutoff event analysis. [2022-09-29 14:47:55,830 INFO L72 CFPrefixIsEmptyBuchi]: Ended cutoff event analysis. [2022-09-29 14:47:55,830 INFO L76 CFPrefixIsEmptyBuchi]: Type 1 Lasso search started. [2022-09-29 14:47:55,830 INFO L87 CFPrefixIsEmptyBuchi]: Type 1 Lasso search ended. [2022-09-29 14:47:55,830 INFO L107 CFPrefixIsEmptyBuchi]: Type 3 Lasso search started. [2022-09-29 14:47:55,848 INFO L206 CFPrefixIsEmptyBuchi]: Type 3 Lasso search ended. [2022-09-29 14:47:55,848 INFO L50 CFPrefixIsEmptyBuchi]: Finished emptiness check, language is empty [2022-09-29 14:47:55,849 INFO L78 IsEmptyBuchi]: Finished isEmptyBuchi language is empty [2022-09-29 14:47:55,857 INFO L202 PluginConnector]: Adding new model MirabelleConcurrentIncrement.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.09 02:47:55 BoogieIcfgContainer [2022-09-29 14:47:55,857 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-09-29 14:47:55,858 INFO L158 Benchmark]: Toolchain (without parser) took 2012.03ms. Allocated memory was 188.7MB in the beginning and 264.2MB in the end (delta: 75.5MB). Free memory was 141.0MB in the beginning and 181.3MB in the end (delta: -40.4MB). Peak memory consumption was 35.9MB. Max. memory is 8.0GB. [2022-09-29 14:47:55,859 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.10ms. Allocated memory is still 188.7MB. Free memory is still 142.0MB. There was no memory consumed. Max. memory is 8.0GB. [2022-09-29 14:47:55,860 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.34ms. Allocated memory is still 188.7MB. Free memory was 140.8MB in the beginning and 139.3MB in the end (delta: 1.5MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-09-29 14:47:55,860 INFO L158 Benchmark]: Boogie Preprocessor took 16.95ms. Allocated memory is still 188.7MB. Free memory was 139.3MB in the beginning and 138.4MB in the end (delta: 916.4kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-09-29 14:47:55,861 INFO L158 Benchmark]: RCFGBuilder took 193.61ms. Allocated memory is still 188.7MB. Free memory was 138.3MB in the beginning and 130.0MB in the end (delta: 8.3MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2022-09-29 14:47:55,863 INFO L158 Benchmark]: BuchiAutomizer took 1761.80ms. Allocated memory was 188.7MB in the beginning and 264.2MB in the end (delta: 75.5MB). Free memory was 129.9MB in the beginning and 181.3MB in the end (delta: -51.5MB). Peak memory consumption was 23.3MB. Max. memory is 8.0GB. [2022-09-29 14:47:55,867 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 188.7MB. Free memory is still 142.0MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 30.34ms. Allocated memory is still 188.7MB. Free memory was 140.8MB in the beginning and 139.3MB in the end (delta: 1.5MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 16.95ms. Allocated memory is still 188.7MB. Free memory was 139.3MB in the beginning and 138.4MB in the end (delta: 916.4kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 193.61ms. Allocated memory is still 188.7MB. Free memory was 138.3MB in the beginning and 130.0MB in the end (delta: 8.3MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * BuchiAutomizer took 1761.80ms. Allocated memory was 188.7MB in the beginning and 264.2MB in the end (delta: 75.5MB). Free memory was 129.9MB in the beginning and 181.3MB in the end (delta: -51.5MB). Peak memory consumption was 23.3MB. 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 -1 * x + n and consists of 3 locations. One deterministic module has affine ranking function n + -1 * y and consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.6s and 3 iterations. TraceHistogramMax:0. Analysis of lassos took 0.8s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. 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, 104 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 102 mSDsluCounter, 64 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 28 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 96 IncrementalHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 48 mSDtfsCounter, 96 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital10 mio100 ax100 hnf100 lsp100 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 37ms VariablesStem: 0 VariablesLoop: 3 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.3s InitialAbstractionConstructionTime: 0.1s - 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: 0.1s, 21 PlacesBefore, 16 PlacesAfterwards, 18 TransitionsBefore, 13 TransitionsAfterwards, 56 CoEnabledTransitionPairs, 1 FixpointIterations, 1 TrivialSequentialCompositions, 4 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 5 TotalNumberOfCompositions, 36 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 36, positive: 36, positive conditional: 0, positive unconditional: 36, 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: 29, positive: 29, positive conditional: 0, positive unconditional: 29, 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: 29, positive: 29, positive conditional: 0, positive unconditional: 29, 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: 36, positive: 7, positive conditional: 0, positive unconditional: 7, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 29, unknown conditional: 0, unknown unconditional: 29] , Statistics on independence cache: Total cache size (in pairs): 7, Positive cache size: 7, Positive conditional cache size: 0, Positive unconditional cache size: 7, 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 14:47:55,899 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2022-09-29 14:47:56,107 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...