/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-steal2.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.fs.omega-petrinet-638c691-m [2022-09-29 15:06:51,114 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-29 15:06:51,115 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-29 15:06:51,149 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-09-29 15:06:51,150 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-09-29 15:06:51,152 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-09-29 15:06:51,154 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-09-29 15:06:51,156 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-09-29 15:06:51,158 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-09-29 15:06:51,162 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-09-29 15:06:51,162 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-09-29 15:06:51,163 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-09-29 15:06:51,164 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-29 15:06:51,165 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-29 15:06:51,166 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-29 15:06:51,168 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-29 15:06:51,168 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-29 15:06:51,169 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-29 15:06:51,170 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-29 15:06:51,174 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-29 15:06:51,175 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-29 15:06:51,176 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-29 15:06:51,178 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-29 15:06:51,178 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-29 15:06:51,183 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-09-29 15:06:51,184 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-09-29 15:06:51,184 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-09-29 15:06:51,185 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-09-29 15:06:51,185 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-09-29 15:06:51,186 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-09-29 15:06:51,186 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-09-29 15:06:51,186 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-09-29 15:06:51,187 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-09-29 15:06:51,188 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-09-29 15:06:51,188 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-09-29 15:06:51,189 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-09-29 15:06:51,189 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-09-29 15:06:51,189 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-09-29 15:06:51,189 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-29 15:06:51,190 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-29 15:06:51,190 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-29 15:06:51,191 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 15:06:51,216 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-29 15:06:51,216 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-29 15:06:51,217 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-09-29 15:06:51,217 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-09-29 15:06:51,218 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-29 15:06:51,218 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-29 15:06:51,218 INFO L138 SettingsManager]: * Use SBE=true [2022-09-29 15:06:51,218 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-09-29 15:06:51,218 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-09-29 15:06:51,218 INFO L138 SettingsManager]: * Use old map elimination=false [2022-09-29 15:06:51,219 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-09-29 15:06:51,219 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-09-29 15:06:51,219 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-09-29 15:06:51,219 INFO L138 SettingsManager]: * Automaton type for concurrent programs=BUCHI_PETRI_NET [2022-09-29 15:06:51,220 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-29 15:06:51,220 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-29 15:06:51,220 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-09-29 15:06:51,220 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-29 15:06:51,220 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-29 15:06:51,220 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-29 15:06:51,220 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-09-29 15:06:51,220 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-09-29 15:06:51,220 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-09-29 15:06:51,220 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-29 15:06:51,220 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-29 15:06:51,221 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-09-29 15:06:51,221 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-29 15:06:51,221 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-09-29 15:06:51,221 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-29 15:06:51,221 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-29 15:06:51,221 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-29 15:06:51,221 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-29 15:06:51,222 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-09-29 15:06:51,222 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-09-29 15:06:51,395 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-29 15:06:51,417 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-29 15:06:51,419 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-29 15:06:51,419 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-09-29 15:06:51,432 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-09-29 15:06:51,433 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2023/work-steal2.bpl [2022-09-29 15:06:51,433 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2023/work-steal2.bpl' [2022-09-29 15:06:51,459 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-29 15:06:51,460 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-09-29 15:06:51,463 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-09-29 15:06:51,463 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-09-29 15:06:51,463 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-09-29 15:06:51,470 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "work-steal2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 03:06:51" (1/1) ... [2022-09-29 15:06:51,477 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "work-steal2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 03:06:51" (1/1) ... [2022-09-29 15:06:51,489 INFO L137 Inliner]: procedures = 4, calls = 4, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 24 [2022-09-29 15:06:51,490 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-09-29 15:06:51,492 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-29 15:06:51,492 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-29 15:06:51,492 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-29 15:06:51,497 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "work-steal2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 03:06:51" (1/1) ... [2022-09-29 15:06:51,497 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "work-steal2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 03:06:51" (1/1) ... [2022-09-29 15:06:51,499 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "work-steal2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 03:06:51" (1/1) ... [2022-09-29 15:06:51,499 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "work-steal2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 03:06:51" (1/1) ... [2022-09-29 15:06:51,501 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "work-steal2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 03:06:51" (1/1) ... [2022-09-29 15:06:51,505 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "work-steal2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 03:06:51" (1/1) ... [2022-09-29 15:06:51,505 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "work-steal2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 03:06:51" (1/1) ... [2022-09-29 15:06:51,509 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-29 15:06:51,510 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-29 15:06:51,511 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-29 15:06:51,511 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-29 15:06:51,512 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "work-steal2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 03:06:51" (1/1) ... [2022-09-29 15:06:51,516 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 15:06:51,521 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 15:06:51,531 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 15:06:51,537 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 15:06:51,556 INFO L124 BoogieDeclarations]: Specification and implementation of procedure workerWithAssert given in one single declaration [2022-09-29 15:06:51,557 INFO L130 BoogieDeclarations]: Found specification of procedure workerWithAssert [2022-09-29 15:06:51,557 INFO L138 BoogieDeclarations]: Found implementation of procedure workerWithAssert [2022-09-29 15:06:51,557 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-09-29 15:06:51,557 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-29 15:06:51,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-29 15:06:51,557 INFO L124 BoogieDeclarations]: Specification and implementation of procedure worker given in one single declaration [2022-09-29 15:06:51,557 INFO L130 BoogieDeclarations]: Found specification of procedure worker [2022-09-29 15:06:51,557 INFO L138 BoogieDeclarations]: Found implementation of procedure worker [2022-09-29 15:06:51,558 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 15:06:51,591 INFO L234 CfgBuilder]: Building ICFG [2022-09-29 15:06:51,592 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-29 15:06:51,691 INFO L275 CfgBuilder]: Performing block encoding [2022-09-29 15:06:51,725 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-29 15:06:51,725 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-09-29 15:06:51,727 INFO L202 PluginConnector]: Adding new model work-steal2.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.09 03:06:51 BoogieIcfgContainer [2022-09-29 15:06:51,727 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-29 15:06:51,727 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-09-29 15:06:51,727 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-09-29 15:06:51,744 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-09-29 15:06:51,745 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-09-29 15:06:51,745 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "work-steal2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 03:06:51" (1/2) ... [2022-09-29 15:06:51,746 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@21bfd78c and model type work-steal2.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.09 03:06:51, skipping insertion in model container [2022-09-29 15:06:51,746 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-09-29 15:06:51,746 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "work-steal2.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.09 03:06:51" (2/2) ... [2022-09-29 15:06:51,747 INFO L322 chiAutomizerObserver]: Analyzing ICFG work-steal2.bpl [2022-09-29 15:06:51,816 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-09-29 15:06:51,860 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 35 places, 34 transitions, 78 flow [2022-09-29 15:06:51,905 INFO L175 PetriNetUnfolderBase]: Searched whole Unfolding. [2022-09-29 15:06:51,905 INFO L123 PetriNetUnfolderBase]: 4/30 cut-off events. [2022-09-29 15:06:51,905 INFO L124 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2022-09-29 15:06:51,908 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 45 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 15:06:51,908 INFO L82 GeneralOperation]: Start removeDead. Operand has 35 places, 34 transitions, 78 flow [2022-09-29 15:06:51,912 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 33 places, 30 transitions, 66 flow [2022-09-29 15:06:51,914 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-09-29 15:06:51,940 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 33 places, 30 transitions, 66 flow [2022-09-29 15:06:51,942 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 33 places, 30 transitions, 66 flow [2022-09-29 15:06:51,942 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 33 places, 30 transitions, 66 flow [2022-09-29 15:06:51,949 INFO L175 PetriNetUnfolderBase]: Searched whole Unfolding. [2022-09-29 15:06:51,949 INFO L123 PetriNetUnfolderBase]: 4/30 cut-off events. [2022-09-29 15:06:51,949 INFO L124 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2022-09-29 15:06:51,950 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 15:06:51,951 INFO L116 LiptonReduction]: Number of co-enabled transitions 388 [2022-09-29 15:06:53,261 INFO L131 LiptonReduction]: Checked pairs total: 336 [2022-09-29 15:06:53,261 INFO L133 LiptonReduction]: Total number of compositions: 31 [2022-09-29 15:06:53,270 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-09-29 15:06:53,270 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-09-29 15:06:53,270 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-09-29 15:06:53,270 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-09-29 15:06:53,270 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-09-29 15:06:53,271 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-09-29 15:06:53,271 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-09-29 15:06:53,271 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiPetriNetCegarLoop ======== [2022-09-29 15:06:53,271 INFO L68 IsEmptyBuchi]: Start isEmptyBuchi. Operand has 14 places, 9 transitions, 24 flow [2022-09-29 15:06:53,274 INFO L76 AcceptsInfiniteWords]: Start buchiAccepts. Operand has 14 places, 9 transitions, 24 flow [2022-09-29 15:06:53,275 INFO L82 AcceptsInfiniteWords]: Finished buchiAccepts. [2022-09-29 15:06:53,275 INFO L157 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2022-09-29 15:06:53,275 INFO L123 PetriNetUnfolderBase]: 0/2 cut-off events. [2022-09-29 15:06:53,276 INFO L124 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2022-09-29 15:06:53,276 INFO L78 IsEmptyBuchi]: Finished isEmptyBuchi language is not empty [2022-09-29 15:06:53,278 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-09-29 15:06:53,278 INFO L68 IsEmptyBuchi]: Start isEmptyBuchi. Operand has 14 places, 9 transitions, 24 flow [2022-09-29 15:06:53,279 INFO L76 AcceptsInfiniteWords]: Start buchiAccepts. Operand has 14 places, 9 transitions, 24 flow [2022-09-29 15:06:53,279 INFO L82 AcceptsInfiniteWords]: Finished buchiAccepts. [2022-09-29 15:06:53,279 INFO L157 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2022-09-29 15:06:53,279 INFO L123 PetriNetUnfolderBase]: 0/2 cut-off events. [2022-09-29 15:06:53,279 INFO L124 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2022-09-29 15:06:53,279 INFO L78 IsEmptyBuchi]: Finished isEmptyBuchi language is not empty [2022-09-29 15:06:53,284 INFO L733 eck$LassoCheckResult]: Stem: 39#[ULTIMATE.startENTRY]true [143] ULTIMATE.startENTRY-->L29: Formula: (and (= v_cnt_42 0) (<= 0 v_N_35)) InVars {N=v_N_35, cnt=v_cnt_42} OutVars{N=v_N_35, cnt=v_cnt_42} AuxVars[] AssignedVars[] 41#[L29]true [127] L29-->L38: Formula: (= v_workerWithAssertThread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{workerWithAssertThread1of1ForFork0_thidvar0=v_workerWithAssertThread1of1ForFork0_thidvar0_2, workerWithAssertThread1of1ForFork0_sz#1=|v_workerWithAssertThread1of1ForFork0_sz#1_8|, workerWithAssertThread1of1ForFork0_i#1=|v_workerWithAssertThread1of1ForFork0_i#1_10|, workerWithAssertThread1of1ForFork0_steal_delta#1=|v_workerWithAssertThread1of1ForFork0_steal_delta#1_6|, workerWithAssertThread1of1ForFork0_steal_num#1=|v_workerWithAssertThread1of1ForFork0_steal_num#1_8|, workerWithAssertThread1of1ForFork0_steal_x#1=|v_workerWithAssertThread1of1ForFork0_steal_x#1_10|} AuxVars[] AssignedVars[workerWithAssertThread1of1ForFork0_thidvar0, workerWithAssertThread1of1ForFork0_sz#1, workerWithAssertThread1of1ForFork0_i#1, workerWithAssertThread1of1ForFork0_steal_delta#1, workerWithAssertThread1of1ForFork0_steal_num#1, workerWithAssertThread1of1ForFork0_steal_x#1] 43#[L29-1, L38]true [2022-09-29 15:06:53,284 INFO L735 eck$LassoCheckResult]: Loop: 43#[L29-1, L38]true [159] L38-->L38: Formula: (and (= |v_workerWithAssertThread1of1ForFork0_sz#1_33| |v_workerWithAssertThread1of1ForFork0_steal_num#1_39|) (= v_cnt_100 (+ v_cnt_101 |v_workerWithAssertThread1of1ForFork0_steal_num#1_39|)) (= |v_workerWithAssertThread1of1ForFork0_i#1_33| |v_workerWithAssertThread1of1ForFork0_steal_x#1_55|) (= |v_workerWithAssertThread1of1ForFork0_steal_num#1_39| (ite (< (+ |v_workerWithAssertThread1of1ForFork0_steal_delta#1_25| v_cnt_101) v_N_73) |v_workerWithAssertThread1of1ForFork0_steal_delta#1_25| (+ v_N_73 (* (- 1) v_cnt_101)))) (<= 0 |v_workerWithAssertThread1of1ForFork0_i#1_33|) (= |v_workerWithAssertThread1of1ForFork0_steal_delta#1_25| 1) (= v_cnt_101 |v_workerWithAssertThread1of1ForFork0_steal_x#1_55|) (= (store v_A_30 |v_workerWithAssertThread1of1ForFork0_i#1_33| (+ (select v_A_30 |v_workerWithAssertThread1of1ForFork0_i#1_33|) 1)) v_A_29) (not (<= |v_workerWithAssertThread1of1ForFork0_sz#1_33| 0))) InVars {A=v_A_30, N=v_N_73, cnt=v_cnt_101} OutVars{A=v_A_29, N=v_N_73, workerWithAssertThread1of1ForFork0_sz#1=|v_workerWithAssertThread1of1ForFork0_sz#1_33|, workerWithAssertThread1of1ForFork0_i#1=|v_workerWithAssertThread1of1ForFork0_i#1_33|, cnt=v_cnt_100, workerWithAssertThread1of1ForFork0_steal_num#1=|v_workerWithAssertThread1of1ForFork0_steal_num#1_39|, workerWithAssertThread1of1ForFork0_steal_delta#1=|v_workerWithAssertThread1of1ForFork0_steal_delta#1_25|, workerWithAssertThread1of1ForFork0_steal_x#1=|v_workerWithAssertThread1of1ForFork0_steal_x#1_55|} AuxVars[] AssignedVars[A, workerWithAssertThread1of1ForFork0_sz#1, workerWithAssertThread1of1ForFork0_i#1, cnt, workerWithAssertThread1of1ForFork0_steal_num#1, workerWithAssertThread1of1ForFork0_steal_delta#1, workerWithAssertThread1of1ForFork0_steal_x#1] 43#[L29-1, L38]true [2022-09-29 15:06:53,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 15:06:53,293 INFO L85 PathProgramCache]: Analyzing trace with hash 5521, now seen corresponding path program 1 times [2022-09-29 15:06:53,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 15:06:53,299 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131959818] [2022-09-29 15:06:53,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 15:06:53,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 15:06:53,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 15:06:53,345 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-09-29 15:06:53,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 15:06:53,356 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-09-29 15:06:53,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 15:06:53,359 INFO L85 PathProgramCache]: Analyzing trace with hash 190, now seen corresponding path program 1 times [2022-09-29 15:06:53,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 15:06:53,359 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897447939] [2022-09-29 15:06:53,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 15:06:53,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 15:06:53,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 15:06:53,373 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-09-29 15:06:53,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 15:06:53,380 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-09-29 15:06:53,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 15:06:53,381 INFO L85 PathProgramCache]: Analyzing trace with hash 171310, now seen corresponding path program 1 times [2022-09-29 15:06:53,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 15:06:53,382 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986698164] [2022-09-29 15:06:53,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 15:06:53,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 15:06:53,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 15:06:53,390 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-09-29 15:06:53,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 15:06:53,411 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-09-29 15:06:53,539 INFO L210 LassoAnalysis]: Preferences: [2022-09-29 15:06:53,540 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-09-29 15:06:53,540 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-09-29 15:06:53,541 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-09-29 15:06:53,541 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-09-29 15:06:53,541 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 15:06:53,541 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-09-29 15:06:53,541 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-09-29 15:06:53,541 INFO L133 ssoRankerPreferences]: Filename of dumped script: work-steal2.bpl_BEv2_Iteration1_Lasso [2022-09-29 15:06:53,541 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-09-29 15:06:53,541 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-09-29 15:06:53,553 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 15:06:53,559 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 15:06:53,686 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-09-29 15:06:53,688 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-09-29 15:06:53,690 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 15:06:53,690 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 15:06:53,691 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 15:06:53,692 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 15:06:53,693 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 15:06:53,699 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-09-29 15:06:53,699 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-09-29 15:06:53,699 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-09-29 15:06:53,699 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-09-29 15:06:53,702 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-09-29 15:06:53,702 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-09-29 15:06:53,718 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-09-29 15:06:53,734 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 15:06:53,734 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 15:06:53,734 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 15:06:53,736 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 15:06:53,743 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 15:06:53,744 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 15:06:53,749 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-09-29 15:06:53,750 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-09-29 15:06:53,750 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-09-29 15:06:53,750 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-09-29 15:06:53,756 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-09-29 15:06:53,757 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-09-29 15:06:53,773 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-09-29 15:06:53,782 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2022-09-29 15:06:53,782 INFO L444 ModelExtractionUtils]: 20 out of 25 variables were initially zero. Simplification set additionally 2 variables to zero. [2022-09-29 15:06:53,783 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 15:06:53,783 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 15:06:53,785 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 15:06:53,786 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 15:06:53,787 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-09-29 15:06:53,808 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2022-09-29 15:06:53,808 INFO L513 LassoAnalysis]: Proved termination. [2022-09-29 15:06:53,808 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(cnt, N) = -1*cnt + 1*N Supporting invariants [] [2022-09-29 15:06:53,844 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 15:06:53,846 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-09-29 15:06:53,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 15:06:53,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 15:06:53,868 INFO L263 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjunts are in the unsatisfiable core [2022-09-29 15:06:53,868 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-29 15:06:53,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 15:06:53,883 INFO L263 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 7 conjunts are in the unsatisfiable core [2022-09-29 15:06:53,884 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-29 15:06:53,884 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 15:06:53,926 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 15:06:53,928 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 15:06:54,078 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 6 states and 559 transitions.4 powerset states2 rank states. The highest rank that occured is 1 [2022-09-29 15:06:54,079 INFO L54 IntersectBuchiEager]: Starting Intersection [2022-09-29 15:06:54,081 INFO L61 IntersectBuchiEager]: Exiting Intersection [2022-09-29 15:06:54,084 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 15:06:54,086 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 15:06:54,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 189 transitions. [2022-09-29 15:06:54,089 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 189 transitions. Stem has 2 letters. Loop has 1 letters. [2022-09-29 15:06:54,090 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-09-29 15:06:54,090 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 189 transitions. Stem has 3 letters. Loop has 1 letters. [2022-09-29 15:06:54,090 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-09-29 15:06:54,090 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 189 transitions. Stem has 2 letters. Loop has 2 letters. [2022-09-29 15:06:54,090 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-09-29 15:06:54,090 INFO L428 stractBuchiCegarLoop]: Abstraction has has 26 places, 140 transitions, 656 flow [2022-09-29 15:06:54,090 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-09-29 15:06:54,090 INFO L68 IsEmptyBuchi]: Start isEmptyBuchi. Operand has 26 places, 140 transitions, 656 flow [2022-09-29 15:06:54,091 INFO L76 AcceptsInfiniteWords]: Start buchiAccepts. Operand has 26 places, 140 transitions, 656 flow [2022-09-29 15:06:54,092 INFO L82 AcceptsInfiniteWords]: Finished buchiAccepts. [2022-09-29 15:06:54,094 INFO L76 AcceptsInfiniteWords]: Start buchiAccepts. Operand has 26 places, 140 transitions, 656 flow [2022-09-29 15:06:54,095 INFO L82 AcceptsInfiniteWords]: Finished buchiAccepts. [2022-09-29 15:06:54,095 INFO L76 AcceptsInfiniteWords]: Start buchiAccepts. Operand has 26 places, 140 transitions, 656 flow [2022-09-29 15:06:54,096 INFO L82 AcceptsInfiniteWords]: Finished buchiAccepts. [2022-09-29 15:06:54,097 INFO L76 AcceptsInfiniteWords]: Start buchiAccepts. Operand has 26 places, 140 transitions, 656 flow [2022-09-29 15:06:54,097 INFO L82 AcceptsInfiniteWords]: Finished buchiAccepts. [2022-09-29 15:06:54,100 INFO L76 AcceptsInfiniteWords]: Start buchiAccepts. Operand has 26 places, 140 transitions, 656 flow [2022-09-29 15:06:54,101 INFO L82 AcceptsInfiniteWords]: Finished buchiAccepts. [2022-09-29 15:06:54,102 INFO L76 AcceptsInfiniteWords]: Start buchiAccepts. Operand has 26 places, 140 transitions, 656 flow [2022-09-29 15:06:54,102 INFO L82 AcceptsInfiniteWords]: Finished buchiAccepts. [2022-09-29 15:06:54,103 INFO L76 AcceptsInfiniteWords]: Start buchiAccepts. Operand has 26 places, 140 transitions, 656 flow [2022-09-29 15:06:54,103 INFO L82 AcceptsInfiniteWords]: Finished buchiAccepts. [2022-09-29 15:06:54,105 INFO L76 AcceptsInfiniteWords]: Start buchiAccepts. Operand has 26 places, 140 transitions, 656 flow [2022-09-29 15:06:54,105 INFO L82 AcceptsInfiniteWords]: Finished buchiAccepts. [2022-09-29 15:06:54,107 INFO L76 AcceptsInfiniteWords]: Start buchiAccepts. Operand has 26 places, 140 transitions, 656 flow [2022-09-29 15:06:54,108 INFO L82 AcceptsInfiniteWords]: Finished buchiAccepts. [2022-09-29 15:06:54,109 INFO L76 AcceptsInfiniteWords]: Start buchiAccepts. Operand has 26 places, 140 transitions, 656 flow [2022-09-29 15:06:54,110 INFO L82 AcceptsInfiniteWords]: Finished buchiAccepts. [2022-09-29 15:06:54,111 INFO L76 AcceptsInfiniteWords]: Start buchiAccepts. Operand has 26 places, 140 transitions, 656 flow [2022-09-29 15:06:54,112 INFO L82 AcceptsInfiniteWords]: Finished buchiAccepts. [2022-09-29 15:06:54,112 INFO L175 PetriNetUnfolderBase]: Searched whole Unfolding. [2022-09-29 15:06:54,112 INFO L123 PetriNetUnfolderBase]: 81/131 cut-off events. [2022-09-29 15:06:54,112 INFO L124 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2022-09-29 15:06:54,113 INFO L47 CFPrefixIsEmptyBuchi]: Starting emptiness check. [2022-09-29 15:06:54,113 INFO L62 CFPrefixIsEmptyBuchi]: Starting cutoff event analysis. [2022-09-29 15:06:54,113 INFO L72 CFPrefixIsEmptyBuchi]: Ended cutoff event analysis. [2022-09-29 15:06:54,113 INFO L76 CFPrefixIsEmptyBuchi]: Type 1 Lasso search started. [2022-09-29 15:06:54,113 INFO L87 CFPrefixIsEmptyBuchi]: Type 1 Lasso search ended. [2022-09-29 15:06:54,113 INFO L107 CFPrefixIsEmptyBuchi]: Type 3 Lasso search started. [2022-09-29 15:06:54,115 INFO L206 CFPrefixIsEmptyBuchi]: Type 3 Lasso search ended. [2022-09-29 15:06:54,115 INFO L50 CFPrefixIsEmptyBuchi]: Finished emptiness check, language is empty [2022-09-29 15:06:54,115 INFO L78 IsEmptyBuchi]: Finished isEmptyBuchi language is empty [2022-09-29 15:06:54,119 INFO L202 PluginConnector]: Adding new model work-steal2.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.09 03:06:54 BoogieIcfgContainer [2022-09-29 15:06:54,119 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-09-29 15:06:54,120 INFO L158 Benchmark]: Toolchain (without parser) took 2659.35ms. Allocated memory was 186.6MB in the beginning and 299.9MB in the end (delta: 113.2MB). Free memory was 138.7MB in the beginning and 225.1MB in the end (delta: -86.4MB). Peak memory consumption was 26.3MB. Max. memory is 8.0GB. [2022-09-29 15:06:54,120 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.11ms. Allocated memory is still 186.6MB. Free memory is still 139.9MB. There was no memory consumed. Max. memory is 8.0GB. [2022-09-29 15:06:54,120 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.21ms. Allocated memory is still 186.6MB. Free memory was 138.7MB in the beginning and 136.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-09-29 15:06:54,121 INFO L158 Benchmark]: Boogie Preprocessor took 17.51ms. Allocated memory is still 186.6MB. Free memory was 136.7MB in the beginning and 135.8MB in the end (delta: 904.8kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-09-29 15:06:54,121 INFO L158 Benchmark]: RCFGBuilder took 216.26ms. Allocated memory is still 186.6MB. Free memory was 135.7MB in the beginning and 156.9MB in the end (delta: -21.2MB). Peak memory consumption was 16.2MB. Max. memory is 8.0GB. [2022-09-29 15:06:54,122 INFO L158 Benchmark]: BuchiAutomizer took 2391.88ms. Allocated memory was 186.6MB in the beginning and 299.9MB in the end (delta: 113.2MB). Free memory was 156.8MB in the beginning and 225.1MB in the end (delta: -68.4MB). Peak memory consumption was 43.6MB. Max. memory is 8.0GB. [2022-09-29 15:06:54,123 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 0.11ms. Allocated memory is still 186.6MB. Free memory is still 139.9MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 28.21ms. Allocated memory is still 186.6MB. Free memory was 138.7MB in the beginning and 136.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 17.51ms. Allocated memory is still 186.6MB. Free memory was 136.7MB in the beginning and 135.8MB in the end (delta: 904.8kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 216.26ms. Allocated memory is still 186.6MB. Free memory was 135.7MB in the beginning and 156.9MB in the end (delta: -21.2MB). Peak memory consumption was 16.2MB. Max. memory is 8.0GB. * BuchiAutomizer took 2391.88ms. Allocated memory was 186.6MB in the beginning and 299.9MB in the end (delta: 113.2MB). Free memory was 156.8MB in the beginning and 225.1MB in the end (delta: -68.4MB). Peak memory consumption was 43.6MB. 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 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.2s and 2 iterations. TraceHistogramMax:0. Analysis of lassos took 0.5s. 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, 115 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 114 mSDsluCounter, 80 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 37 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 113 IncrementalHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 55 mSDtfsCounter, 113 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital69 mio100 ax100 hnf100 lsp110 ukn57 mio100 lsp100 div100 bol100 ite100 ukn100 eq186 hnf91 smp78 dnf100 smp100 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 28ms 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: 1.4s - 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: 1.3s, 33 PlacesBefore, 14 PlacesAfterwards, 30 TransitionsBefore, 9 TransitionsAfterwards, 388 CoEnabledTransitionPairs, 5 FixpointIterations, 1 TrivialSequentialCompositions, 24 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 2 ChoiceCompositions, 31 TotalNumberOfCompositions, 336 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 322, positive: 316, positive conditional: 0, positive unconditional: 316, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 257, positive: 253, positive conditional: 0, positive unconditional: 253, 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: 257, positive: 251, positive conditional: 0, positive unconditional: 251, 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: 42, positive: 8, positive conditional: 0, positive unconditional: 8, negative: 34, negative conditional: 0, negative unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 322, positive: 63, positive conditional: 0, positive unconditional: 63, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 257, unknown conditional: 0, unknown unconditional: 257] , 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 15:06:54,147 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 15:06:54,362 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...