/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/POPL2023/work-steal1.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.fs.omega-petrinet-638c691-m [2022-09-29 15:06:51,057 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-29 15:06:51,058 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-29 15:06:51,090 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-09-29 15:06:51,090 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-09-29 15:06:51,093 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-09-29 15:06:51,095 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-09-29 15:06:51,096 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-09-29 15:06:51,097 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-09-29 15:06:51,097 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-09-29 15:06:51,098 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-09-29 15:06:51,098 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-09-29 15:06:51,099 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-29 15:06:51,099 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-29 15:06:51,100 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-29 15:06:51,101 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-29 15:06:51,101 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-29 15:06:51,102 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-29 15:06:51,103 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-29 15:06:51,104 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-29 15:06:51,105 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-29 15:06:51,107 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-29 15:06:51,108 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-29 15:06:51,108 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-29 15:06:51,111 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-09-29 15:06:51,111 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-09-29 15:06:51,111 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-09-29 15:06:51,116 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-09-29 15:06:51,116 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-09-29 15:06:51,116 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-09-29 15:06:51,117 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-09-29 15:06:51,117 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-09-29 15:06:51,118 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-09-29 15:06:51,118 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-09-29 15:06:51,119 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-09-29 15:06:51,119 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-09-29 15:06:51,119 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-09-29 15:06:51,119 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-09-29 15:06:51,120 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-29 15:06:51,120 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-29 15:06:51,121 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-29 15:06:51,125 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 15:06:51,147 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-29 15:06:51,148 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-29 15:06:51,148 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-09-29 15:06:51,148 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-09-29 15:06:51,149 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-29 15:06:51,149 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-29 15:06:51,149 INFO L138 SettingsManager]: * Use SBE=true [2022-09-29 15:06:51,149 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-09-29 15:06:51,149 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-09-29 15:06:51,149 INFO L138 SettingsManager]: * Use old map elimination=false [2022-09-29 15:06:51,149 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-09-29 15:06:51,149 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-09-29 15:06:51,149 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-09-29 15:06:51,149 INFO L138 SettingsManager]: * Automaton type for concurrent programs=BUCHI_PETRI_NET [2022-09-29 15:06:51,149 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-29 15:06:51,149 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-29 15:06:51,150 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-09-29 15:06:51,150 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-29 15:06:51,150 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-29 15:06:51,150 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-29 15:06:51,150 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-09-29 15:06:51,150 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-09-29 15:06:51,150 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-09-29 15:06:51,150 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-29 15:06:51,150 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-29 15:06:51,150 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-09-29 15:06:51,150 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-29 15:06:51,150 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-09-29 15:06:51,151 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-29 15:06:51,151 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-29 15:06:51,151 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-29 15:06:51,154 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-29 15:06:51,155 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-09-29 15:06:51,156 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-09-29 15:06:51,349 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-29 15:06:51,369 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-29 15:06:51,372 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-29 15:06:51,372 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-09-29 15:06:51,373 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-09-29 15:06:51,374 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2023/work-steal1.bpl [2022-09-29 15:06:51,374 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2023/work-steal1.bpl' [2022-09-29 15:06:51,391 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-29 15:06:51,392 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-09-29 15:06:51,397 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-09-29 15:06:51,397 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-09-29 15:06:51,397 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-09-29 15:06:51,405 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "work-steal1.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 03:06:51" (1/1) ... [2022-09-29 15:06:51,411 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "work-steal1.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 03:06:51" (1/1) ... [2022-09-29 15:06:51,424 INFO L137 Inliner]: procedures = 4, calls = 4, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 22 [2022-09-29 15:06:51,425 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-09-29 15:06:51,426 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-29 15:06:51,426 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-29 15:06:51,426 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-29 15:06:51,431 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "work-steal1.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 03:06:51" (1/1) ... [2022-09-29 15:06:51,431 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "work-steal1.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 03:06:51" (1/1) ... [2022-09-29 15:06:51,432 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "work-steal1.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 03:06:51" (1/1) ... [2022-09-29 15:06:51,432 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "work-steal1.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 03:06:51" (1/1) ... [2022-09-29 15:06:51,434 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "work-steal1.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 03:06:51" (1/1) ... [2022-09-29 15:06:51,436 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "work-steal1.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 03:06:51" (1/1) ... [2022-09-29 15:06:51,437 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "work-steal1.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 03:06:51" (1/1) ... [2022-09-29 15:06:51,438 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-29 15:06:51,441 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-29 15:06:51,441 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-29 15:06:51,441 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-29 15:06:51,442 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "work-steal1.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 03:06:51" (1/1) ... [2022-09-29 15:06:51,446 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 15:06:51,451 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 15:06:51,502 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 15:06:51,508 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 15:06:51,530 INFO L124 BoogieDeclarations]: Specification and implementation of procedure workerWithAssert given in one single declaration [2022-09-29 15:06:51,531 INFO L130 BoogieDeclarations]: Found specification of procedure workerWithAssert [2022-09-29 15:06:51,531 INFO L138 BoogieDeclarations]: Found implementation of procedure workerWithAssert [2022-09-29 15:06:51,531 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-09-29 15:06:51,531 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-29 15:06:51,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-29 15:06:51,531 INFO L124 BoogieDeclarations]: Specification and implementation of procedure worker given in one single declaration [2022-09-29 15:06:51,531 INFO L130 BoogieDeclarations]: Found specification of procedure worker [2022-09-29 15:06:51,531 INFO L138 BoogieDeclarations]: Found implementation of procedure worker [2022-09-29 15:06:51,532 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 15:06:51,565 INFO L234 CfgBuilder]: Building ICFG [2022-09-29 15:06:51,568 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-29 15:06:51,689 INFO L275 CfgBuilder]: Performing block encoding [2022-09-29 15:06:51,740 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-29 15:06:51,741 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-09-29 15:06:51,742 INFO L202 PluginConnector]: Adding new model work-steal1.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.09 03:06:51 BoogieIcfgContainer [2022-09-29 15:06:51,742 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-29 15:06:51,743 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-09-29 15:06:51,743 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-09-29 15:06:51,780 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-09-29 15:06:51,781 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-09-29 15:06:51,781 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "work-steal1.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 03:06:51" (1/2) ... [2022-09-29 15:06:51,782 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@14c37077 and model type work-steal1.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.09 03:06:51, skipping insertion in model container [2022-09-29 15:06:51,782 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-09-29 15:06:51,782 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "work-steal1.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.09 03:06:51" (2/2) ... [2022-09-29 15:06:51,784 INFO L322 chiAutomizerObserver]: Analyzing ICFG work-steal1.bpl [2022-09-29 15:06:51,865 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-09-29 15:06:51,891 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 35 places, 34 transitions, 78 flow [2022-09-29 15:06:51,916 INFO L175 PetriNetUnfolderBase]: Searched whole Unfolding. [2022-09-29 15:06:51,916 INFO L123 PetriNetUnfolderBase]: 4/30 cut-off events. [2022-09-29 15:06:51,916 INFO L124 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2022-09-29 15:06:51,919 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37 conditions, 30 events. 4/30 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 48 event pairs, 0 based on Foata normal form. 0/25 useless extension candidates. Maximal degree in co-relation 29. Up to 2 conditions per place. [2022-09-29 15:06:51,919 INFO L82 GeneralOperation]: Start removeDead. Operand has 35 places, 34 transitions, 78 flow [2022-09-29 15:06:51,922 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 33 places, 30 transitions, 66 flow [2022-09-29 15:06:51,927 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-09-29 15:06:51,945 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 33 places, 30 transitions, 66 flow [2022-09-29 15:06:51,948 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 33 places, 30 transitions, 66 flow [2022-09-29 15:06:51,948 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 33 places, 30 transitions, 66 flow [2022-09-29 15:06:51,959 INFO L175 PetriNetUnfolderBase]: Searched whole Unfolding. [2022-09-29 15:06:51,960 INFO L123 PetriNetUnfolderBase]: 4/30 cut-off events. [2022-09-29 15:06:51,960 INFO L124 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2022-09-29 15:06:51,960 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37 conditions, 30 events. 4/30 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 47 event pairs, 0 based on Foata normal form. 0/25 useless extension candidates. Maximal degree in co-relation 29. Up to 2 conditions per place. [2022-09-29 15:06:51,962 INFO L116 LiptonReduction]: Number of co-enabled transitions 388 [2022-09-29 15:06:53,137 INFO L131 LiptonReduction]: Checked pairs total: 343 [2022-09-29 15:06:53,138 INFO L133 LiptonReduction]: Total number of compositions: 30 [2022-09-29 15:06:53,146 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-09-29 15:06:53,146 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-09-29 15:06:53,146 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-09-29 15:06:53,146 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-09-29 15:06:53,146 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-09-29 15:06:53,146 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-09-29 15:06:53,147 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-09-29 15:06:53,147 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiPetriNetCegarLoop ======== [2022-09-29 15:06:53,151 INFO L68 IsEmptyBuchi]: Start isEmptyBuchi. Operand has 14 places, 9 transitions, 24 flow [2022-09-29 15:06:53,154 INFO L76 AcceptsInfiniteWords]: Start buchiAccepts. Operand has 14 places, 9 transitions, 24 flow [2022-09-29 15:06:53,156 INFO L82 AcceptsInfiniteWords]: Finished buchiAccepts. [2022-09-29 15:06:53,156 INFO L157 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2022-09-29 15:06:53,156 INFO L123 PetriNetUnfolderBase]: 0/2 cut-off events. [2022-09-29 15:06:53,156 INFO L124 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2022-09-29 15:06:53,156 INFO L78 IsEmptyBuchi]: Finished isEmptyBuchi language is not empty [2022-09-29 15:06:53,161 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-09-29 15:06:53,162 INFO L68 IsEmptyBuchi]: Start isEmptyBuchi. Operand has 14 places, 9 transitions, 24 flow [2022-09-29 15:06:53,163 INFO L76 AcceptsInfiniteWords]: Start buchiAccepts. Operand has 14 places, 9 transitions, 24 flow [2022-09-29 15:06:53,164 INFO L82 AcceptsInfiniteWords]: Finished buchiAccepts. [2022-09-29 15:06:53,164 INFO L157 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2022-09-29 15:06:53,164 INFO L123 PetriNetUnfolderBase]: 0/2 cut-off events. [2022-09-29 15:06:53,164 INFO L124 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2022-09-29 15:06:53,164 INFO L78 IsEmptyBuchi]: Finished isEmptyBuchi language is not empty [2022-09-29 15:06:53,168 INFO L733 eck$LassoCheckResult]: Stem: 39#[ULTIMATE.startENTRY]true [131] ULTIMATE.startENTRY-->L29: Formula: (and (<= 0 v_N_27) (= v_cnt_40 0)) InVars {N=v_N_27, cnt=v_cnt_40} OutVars{N=v_N_27, cnt=v_cnt_40} AuxVars[] AssignedVars[] 41#[L29]true [123] L29-->L39: Formula: (= v_workerWithAssertThread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{workerWithAssertThread1of1ForFork0_thidvar0=v_workerWithAssertThread1of1ForFork0_thidvar0_2, workerWithAssertThread1of1ForFork0_i#1=|v_workerWithAssertThread1of1ForFork0_i#1_14|, workerWithAssertThread1of1ForFork0_steal_delta#1=|v_workerWithAssertThread1of1ForFork0_steal_delta#1_6|, workerWithAssertThread1of1ForFork0_steal_x#1=|v_workerWithAssertThread1of1ForFork0_steal_x#1_8|} AuxVars[] AssignedVars[workerWithAssertThread1of1ForFork0_thidvar0, workerWithAssertThread1of1ForFork0_i#1, workerWithAssertThread1of1ForFork0_steal_delta#1, workerWithAssertThread1of1ForFork0_steal_x#1] 43#[L39, L29-1]true [2022-09-29 15:06:53,168 INFO L735 eck$LassoCheckResult]: Loop: 43#[L39, L29-1]true [151] L39-->L39: Formula: (let ((.cse0 (+ |v_workerWithAssertThread1of1ForFork0_steal_delta#1_27| v_cnt_87))) (and (not (< |v_workerWithAssertThread1of1ForFork0_i#1_39| 0)) (= .cse0 v_cnt_86) (= v_A_27 (store v_A_28 |v_workerWithAssertThread1of1ForFork0_i#1_39| (+ (select v_A_28 |v_workerWithAssertThread1of1ForFork0_i#1_39|) 1))) (= |v_workerWithAssertThread1of1ForFork0_steal_delta#1_27| 1) (= v_cnt_87 |v_workerWithAssertThread1of1ForFork0_steal_x#1_31|) (= |v_workerWithAssertThread1of1ForFork0_i#1_39| |v_workerWithAssertThread1of1ForFork0_steal_x#1_31|) (<= .cse0 v_N_59))) InVars {A=v_A_28, N=v_N_59, cnt=v_cnt_87} OutVars{A=v_A_27, N=v_N_59, workerWithAssertThread1of1ForFork0_i#1=|v_workerWithAssertThread1of1ForFork0_i#1_39|, cnt=v_cnt_86, workerWithAssertThread1of1ForFork0_steal_delta#1=|v_workerWithAssertThread1of1ForFork0_steal_delta#1_27|, workerWithAssertThread1of1ForFork0_steal_x#1=|v_workerWithAssertThread1of1ForFork0_steal_x#1_31|} AuxVars[] AssignedVars[A, workerWithAssertThread1of1ForFork0_i#1, cnt, workerWithAssertThread1of1ForFork0_steal_delta#1, workerWithAssertThread1of1ForFork0_steal_x#1] 43#[L39, L29-1]true [2022-09-29 15:06:53,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 15:06:53,173 INFO L85 PathProgramCache]: Analyzing trace with hash 5145, now seen corresponding path program 1 times [2022-09-29 15:06:53,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 15:06:53,180 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641691905] [2022-09-29 15:06:53,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 15:06:53,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 15:06:53,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 15:06:53,226 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-09-29 15:06:53,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 15:06:53,237 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-09-29 15:06:53,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 15:06:53,238 INFO L85 PathProgramCache]: Analyzing trace with hash 182, now seen corresponding path program 1 times [2022-09-29 15:06:53,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 15:06:53,239 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554445608] [2022-09-29 15:06:53,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 15:06:53,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 15:06:53,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 15:06:53,250 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-09-29 15:06:53,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 15:06:53,255 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-09-29 15:06:53,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 15:06:53,256 INFO L85 PathProgramCache]: Analyzing trace with hash 159646, now seen corresponding path program 1 times [2022-09-29 15:06:53,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 15:06:53,257 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205194459] [2022-09-29 15:06:53,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 15:06:53,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 15:06:53,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 15:06:53,262 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-09-29 15:06:53,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 15:06:53,267 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-09-29 15:06:53,320 INFO L210 LassoAnalysis]: Preferences: [2022-09-29 15:06:53,321 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-09-29 15:06:53,321 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-09-29 15:06:53,321 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-09-29 15:06:53,321 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-09-29 15:06:53,321 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 15:06:53,321 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-09-29 15:06:53,321 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-09-29 15:06:53,321 INFO L133 ssoRankerPreferences]: Filename of dumped script: work-steal1.bpl_BEv2_Iteration1_Lasso [2022-09-29 15:06:53,322 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-09-29 15:06:53,322 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-09-29 15:06:53,364 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 15:06:53,372 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 15:06:53,449 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-09-29 15:06:53,452 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-09-29 15:06:53,453 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 15:06:53,453 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 15:06:53,454 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 15:06:53,455 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 15:06:53,459 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 15:06:53,465 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-09-29 15:06:53,466 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-09-29 15:06:53,466 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-09-29 15:06:53,466 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-09-29 15:06:53,469 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-09-29 15:06:53,469 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-09-29 15:06:53,480 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-09-29 15:06:53,495 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 15:06:53,496 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 15:06:53,496 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 15:06:53,497 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 15:06:53,498 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 15:06:53,499 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 15:06:53,504 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-09-29 15:06:53,504 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-09-29 15:06:53,505 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-09-29 15:06:53,505 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-09-29 15:06:53,510 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-09-29 15:06:53,510 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-09-29 15:06:53,526 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-09-29 15:06:53,536 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2022-09-29 15:06:53,536 INFO L444 ModelExtractionUtils]: 12 out of 19 variables were initially zero. Simplification set additionally 4 variables to zero. [2022-09-29 15:06:53,537 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 15:06:53,537 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 15:06:53,539 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 15:06:53,540 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 15:06:53,541 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-09-29 15:06:53,564 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2022-09-29 15:06:53,564 INFO L513 LassoAnalysis]: Proved termination. [2022-09-29 15:06:53,565 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(N, cnt) = 1*N - 1*cnt Supporting invariants [] [2022-09-29 15:06:53,592 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-09-29 15:06:53,594 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-09-29 15:06:53,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 15:06:53,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 15:06:53,613 INFO L263 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjunts are in the unsatisfiable core [2022-09-29 15:06:53,614 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-29 15:06:53,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 15:06:53,621 INFO L263 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 5 conjunts are in the unsatisfiable core [2022-09-29 15:06:53,622 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-29 15:06:53,622 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 15:06:53,640 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 15:06:53,642 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 15:06:53,808 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 7 states and 600 transitions.5 powerset states2 rank states. The highest rank that occured is 1 [2022-09-29 15:06:53,809 INFO L54 IntersectBuchiEager]: Starting Intersection [2022-09-29 15:06:53,811 INFO L61 IntersectBuchiEager]: Exiting Intersection [2022-09-29 15:06:53,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-09-29 15:06:53,822 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 15:06:53,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 238 transitions. [2022-09-29 15:06:53,830 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 238 transitions. Stem has 2 letters. Loop has 1 letters. [2022-09-29 15:06:53,830 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-09-29 15:06:53,830 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 238 transitions. Stem has 3 letters. Loop has 1 letters. [2022-09-29 15:06:53,830 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-09-29 15:06:53,831 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 238 transitions. Stem has 2 letters. Loop has 2 letters. [2022-09-29 15:06:53,831 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-09-29 15:06:53,831 INFO L428 stractBuchiCegarLoop]: Abstraction has has 28 places, 154 transitions, 724 flow [2022-09-29 15:06:53,831 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-09-29 15:06:53,831 INFO L68 IsEmptyBuchi]: Start isEmptyBuchi. Operand has 28 places, 154 transitions, 724 flow [2022-09-29 15:06:53,833 INFO L76 AcceptsInfiniteWords]: Start buchiAccepts. Operand has 28 places, 154 transitions, 724 flow [2022-09-29 15:06:53,834 INFO L82 AcceptsInfiniteWords]: Finished buchiAccepts. [2022-09-29 15:06:53,836 INFO L76 AcceptsInfiniteWords]: Start buchiAccepts. Operand has 28 places, 154 transitions, 724 flow [2022-09-29 15:06:53,837 INFO L82 AcceptsInfiniteWords]: Finished buchiAccepts. [2022-09-29 15:06:53,839 INFO L76 AcceptsInfiniteWords]: Start buchiAccepts. Operand has 28 places, 154 transitions, 724 flow [2022-09-29 15:06:53,840 INFO L82 AcceptsInfiniteWords]: Finished buchiAccepts. [2022-09-29 15:06:53,841 INFO L76 AcceptsInfiniteWords]: Start buchiAccepts. Operand has 28 places, 154 transitions, 724 flow [2022-09-29 15:06:53,843 INFO L82 AcceptsInfiniteWords]: Finished buchiAccepts. [2022-09-29 15:06:53,853 INFO L76 AcceptsInfiniteWords]: Start buchiAccepts. Operand has 28 places, 154 transitions, 724 flow [2022-09-29 15:06:53,854 INFO L82 AcceptsInfiniteWords]: Finished buchiAccepts. [2022-09-29 15:06:53,856 INFO L76 AcceptsInfiniteWords]: Start buchiAccepts. Operand has 28 places, 154 transitions, 724 flow [2022-09-29 15:06:53,858 INFO L82 AcceptsInfiniteWords]: Finished buchiAccepts. [2022-09-29 15:06:53,859 INFO L76 AcceptsInfiniteWords]: Start buchiAccepts. Operand has 28 places, 154 transitions, 724 flow [2022-09-29 15:06:53,860 INFO L82 AcceptsInfiniteWords]: Finished buchiAccepts. [2022-09-29 15:06:53,861 INFO L76 AcceptsInfiniteWords]: Start buchiAccepts. Operand has 28 places, 154 transitions, 724 flow [2022-09-29 15:06:53,862 INFO L82 AcceptsInfiniteWords]: Finished buchiAccepts. [2022-09-29 15:06:53,866 INFO L76 AcceptsInfiniteWords]: Start buchiAccepts. Operand has 28 places, 154 transitions, 724 flow [2022-09-29 15:06:53,867 INFO L82 AcceptsInfiniteWords]: Finished buchiAccepts. [2022-09-29 15:06:53,869 INFO L76 AcceptsInfiniteWords]: Start buchiAccepts. Operand has 28 places, 154 transitions, 724 flow [2022-09-29 15:06:53,871 INFO L82 AcceptsInfiniteWords]: Finished buchiAccepts. [2022-09-29 15:06:53,872 INFO L76 AcceptsInfiniteWords]: Start buchiAccepts. Operand has 28 places, 154 transitions, 724 flow [2022-09-29 15:06:53,873 INFO L82 AcceptsInfiniteWords]: Finished buchiAccepts. [2022-09-29 15:06:53,873 INFO L175 PetriNetUnfolderBase]: Searched whole Unfolding. [2022-09-29 15:06:53,873 INFO L123 PetriNetUnfolderBase]: 71/110 cut-off events. [2022-09-29 15:06:53,873 INFO L124 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2022-09-29 15:06:53,874 INFO L47 CFPrefixIsEmptyBuchi]: Starting emptiness check. [2022-09-29 15:06:53,874 INFO L62 CFPrefixIsEmptyBuchi]: Starting cutoff event analysis. [2022-09-29 15:06:53,874 INFO L72 CFPrefixIsEmptyBuchi]: Ended cutoff event analysis. [2022-09-29 15:06:53,874 INFO L76 CFPrefixIsEmptyBuchi]: Type 1 Lasso search started. [2022-09-29 15:06:53,874 INFO L87 CFPrefixIsEmptyBuchi]: Type 1 Lasso search ended. [2022-09-29 15:06:53,875 INFO L107 CFPrefixIsEmptyBuchi]: Type 3 Lasso search started. [2022-09-29 15:06:53,876 INFO L206 CFPrefixIsEmptyBuchi]: Type 3 Lasso search ended. [2022-09-29 15:06:53,876 INFO L50 CFPrefixIsEmptyBuchi]: Finished emptiness check, language is empty [2022-09-29 15:06:53,876 INFO L78 IsEmptyBuchi]: Finished isEmptyBuchi language is empty [2022-09-29 15:06:53,882 INFO L202 PluginConnector]: Adding new model work-steal1.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.09 03:06:53 BoogieIcfgContainer [2022-09-29 15:06:53,882 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-09-29 15:06:53,883 INFO L158 Benchmark]: Toolchain (without parser) took 2490.53ms. Allocated memory was 186.6MB in the beginning and 274.7MB in the end (delta: 88.1MB). Free memory was 142.7MB in the beginning and 212.2MB in the end (delta: -69.5MB). Peak memory consumption was 18.3MB. Max. memory is 8.0GB. [2022-09-29 15:06:53,885 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.10ms. Allocated memory is still 186.6MB. Free memory is still 143.7MB. There was no memory consumed. Max. memory is 8.0GB. [2022-09-29 15:06:53,886 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.14ms. Allocated memory is still 186.6MB. Free memory was 142.6MB in the beginning and 140.7MB in the end (delta: 1.9MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-09-29 15:06:53,889 INFO L158 Benchmark]: Boogie Preprocessor took 12.31ms. Allocated memory is still 186.6MB. Free memory was 140.7MB in the beginning and 139.8MB in the end (delta: 935.9kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-09-29 15:06:53,889 INFO L158 Benchmark]: RCFGBuilder took 301.96ms. Allocated memory is still 186.6MB. Free memory was 139.7MB in the beginning and 129.0MB in the end (delta: 10.6MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-09-29 15:06:53,890 INFO L158 Benchmark]: BuchiAutomizer took 2138.67ms. Allocated memory was 186.6MB in the beginning and 274.7MB in the end (delta: 88.1MB). Free memory was 128.9MB in the beginning and 212.2MB in the end (delta: -83.3MB). Peak memory consumption was 3.6MB. Max. memory is 8.0GB. [2022-09-29 15:06:53,893 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 186.6MB. Free memory is still 143.7MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 28.14ms. Allocated memory is still 186.6MB. Free memory was 142.6MB in the beginning and 140.7MB in the end (delta: 1.9MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 12.31ms. Allocated memory is still 186.6MB. Free memory was 140.7MB in the beginning and 139.8MB in the end (delta: 935.9kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 301.96ms. Allocated memory is still 186.6MB. Free memory was 139.7MB in the beginning and 129.0MB in the end (delta: 10.6MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * BuchiAutomizer took 2138.67ms. Allocated memory was 186.6MB in the beginning and 274.7MB in the end (delta: 88.1MB). Free memory was 128.9MB in the beginning and 212.2MB in the end (delta: -83.3MB). Peak memory consumption was 3.6MB. 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 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function N + -1 * cnt and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.9s and 2 iterations. TraceHistogramMax:0. Analysis of lassos took 0.4s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. 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 [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 110 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 109 mSDsluCounter, 80 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 35 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 116 IncrementalHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 55 mSDtfsCounter, 116 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital44 mio100 ax100 hnf100 lsp93 ukn75 mio100 lsp100 div100 bol100 ite100 ukn100 eq170 hnf90 smp100 dnf100 smp100 tf100 neg97 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 27ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 1.2s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.2s, 33 PlacesBefore, 14 PlacesAfterwards, 30 TransitionsBefore, 9 TransitionsAfterwards, 388 CoEnabledTransitionPairs, 4 FixpointIterations, 1 TrivialSequentialCompositions, 23 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 2 ChoiceCompositions, 30 TotalNumberOfCompositions, 343 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 301, positive: 294, positive conditional: 0, positive unconditional: 294, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 246, positive: 242, positive conditional: 0, positive unconditional: 242, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 246, positive: 240, positive conditional: 0, positive unconditional: 240, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 6, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 38, positive: 8, positive conditional: 0, positive unconditional: 8, negative: 30, negative conditional: 0, negative unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 301, positive: 52, positive conditional: 0, positive unconditional: 52, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 246, unknown conditional: 0, unknown unconditional: 246] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, 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 15:06:53,921 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 15:06:54,132 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...