/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/default/automizer/svcomp-Termination-32bit-Automizer_Default.epf --buchiautomizer.automaton.type.for.concurrent.programs BUCHI_PETRI_NET -i ../../../trunk/examples/concurrent/bpl/regression/example_unnecessary_interleavings.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.fs.rabin-petrinet-4c29625-m [2023-10-12 17:18:00,900 INFO L172 SettingsManager]: Resetting all preferences to default values... [2023-10-12 17:18:00,960 INFO L100 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Termination-32bit-Automizer_Default.epf [2023-10-12 17:18:00,984 INFO L114 SettingsManager]: Preferences different from defaults after loading the file: [2023-10-12 17:18:00,985 INFO L135 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-10-12 17:18:00,985 INFO L137 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-10-12 17:18:00,987 INFO L135 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-10-12 17:18:00,987 INFO L137 SettingsManager]: * Create parallel compositions if possible=false [2023-10-12 17:18:00,987 INFO L137 SettingsManager]: * Use SBE=true [2023-10-12 17:18:00,990 INFO L135 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-10-12 17:18:00,990 INFO L137 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-10-12 17:18:00,990 INFO L137 SettingsManager]: * Use old map elimination=false [2023-10-12 17:18:00,991 INFO L137 SettingsManager]: * Use external solver (rank synthesis)=false [2023-10-12 17:18:00,991 INFO L137 SettingsManager]: * Use only trivial implications for array writes=true [2023-10-12 17:18:00,992 INFO L137 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-10-12 17:18:00,992 INFO L135 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-10-12 17:18:00,992 INFO L137 SettingsManager]: * sizeof long=4 [2023-10-12 17:18:00,992 INFO L137 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-10-12 17:18:00,993 INFO L137 SettingsManager]: * Overapproximate operations on floating types=true [2023-10-12 17:18:00,993 INFO L137 SettingsManager]: * sizeof POINTER=4 [2023-10-12 17:18:00,993 INFO L137 SettingsManager]: * Check division by zero=IGNORE [2023-10-12 17:18:00,993 INFO L137 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-10-12 17:18:00,993 INFO L137 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-10-12 17:18:00,994 INFO L137 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-10-12 17:18:00,994 INFO L137 SettingsManager]: * sizeof long double=12 [2023-10-12 17:18:00,994 INFO L137 SettingsManager]: * Check if freed pointer was valid=false [2023-10-12 17:18:00,994 INFO L137 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-10-12 17:18:00,994 INFO L137 SettingsManager]: * Use constant arrays=true [2023-10-12 17:18:00,994 INFO L137 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-10-12 17:18:00,994 INFO L135 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-10-12 17:18:00,995 INFO L137 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-10-12 17:18:00,995 INFO L135 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-10-12 17:18:00,995 INFO L137 SettingsManager]: * Trace refinement strategy=CAMEL [2023-10-12 17:18:00,996 INFO L135 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-10-12 17:18:00,997 INFO L137 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: Automaton type for concurrent programs -> BUCHI_PETRI_NET [2023-10-12 17:18:01,192 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-10-12 17:18:01,214 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-10-12 17:18:01,215 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-10-12 17:18:01,216 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2023-10-12 17:18:01,217 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2023-10-12 17:18:01,217 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/regression/example_unnecessary_interleavings.bpl [2023-10-12 17:18:01,218 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/regression/example_unnecessary_interleavings.bpl' [2023-10-12 17:18:01,232 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-10-12 17:18:01,233 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2023-10-12 17:18:01,233 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-10-12 17:18:01,233 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-10-12 17:18:01,233 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-10-12 17:18:01,242 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "example_unnecessary_interleavings.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:18:01" (1/1) ... [2023-10-12 17:18:01,246 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "example_unnecessary_interleavings.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:18:01" (1/1) ... [2023-10-12 17:18:01,250 INFO L138 Inliner]: procedures = 4, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2023-10-12 17:18:01,251 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-10-12 17:18:01,251 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-10-12 17:18:01,251 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-10-12 17:18:01,252 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-10-12 17:18:01,256 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "example_unnecessary_interleavings.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:18:01" (1/1) ... [2023-10-12 17:18:01,257 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "example_unnecessary_interleavings.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:18:01" (1/1) ... [2023-10-12 17:18:01,257 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "example_unnecessary_interleavings.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:18:01" (1/1) ... [2023-10-12 17:18:01,257 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "example_unnecessary_interleavings.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:18:01" (1/1) ... [2023-10-12 17:18:01,258 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "example_unnecessary_interleavings.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:18:01" (1/1) ... [2023-10-12 17:18:01,258 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "example_unnecessary_interleavings.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:18:01" (1/1) ... [2023-10-12 17:18:01,259 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "example_unnecessary_interleavings.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:18:01" (1/1) ... [2023-10-12 17:18:01,259 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "example_unnecessary_interleavings.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:18:01" (1/1) ... [2023-10-12 17:18:01,260 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-10-12 17:18:01,260 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-10-12 17:18:01,260 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-10-12 17:18:01,260 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-10-12 17:18:01,261 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "example_unnecessary_interleavings.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:18:01" (1/1) ... [2023-10-12 17:18:01,265 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:18:01,270 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:18:01,279 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) [2023-10-12 17:18:01,287 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 [2023-10-12 17:18:01,303 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_y given in one single declaration [2023-10-12 17:18:01,303 INFO L130 BoogieDeclarations]: Found specification of procedure set_y [2023-10-12 17:18:01,303 INFO L138 BoogieDeclarations]: Found implementation of procedure set_y [2023-10-12 17:18:01,303 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_z given in one single declaration [2023-10-12 17:18:01,303 INFO L130 BoogieDeclarations]: Found specification of procedure set_z [2023-10-12 17:18:01,304 INFO L138 BoogieDeclarations]: Found implementation of procedure set_z [2023-10-12 17:18:01,304 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2023-10-12 17:18:01,304 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-10-12 17:18:01,304 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-10-12 17:18:01,304 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_x given in one single declaration [2023-10-12 17:18:01,304 INFO L130 BoogieDeclarations]: Found specification of procedure set_x [2023-10-12 17:18:01,305 INFO L138 BoogieDeclarations]: Found implementation of procedure set_x [2023-10-12 17:18:01,305 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-10-12 17:18:01,339 INFO L236 CfgBuilder]: Building ICFG [2023-10-12 17:18:01,340 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-10-12 17:18:01,413 INFO L277 CfgBuilder]: Performing block encoding [2023-10-12 17:18:01,419 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-10-12 17:18:01,419 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-10-12 17:18:01,426 INFO L201 PluginConnector]: Adding new model example_unnecessary_interleavings.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:18:01 BoogieIcfgContainer [2023-10-12 17:18:01,426 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-10-12 17:18:01,428 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-10-12 17:18:01,428 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-10-12 17:18:01,430 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-10-12 17:18:01,431 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-10-12 17:18:01,431 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "example_unnecessary_interleavings.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:18:01" (1/2) ... [2023-10-12 17:18:01,433 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3b245c43 and model type example_unnecessary_interleavings.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 12.10 05:18:01, skipping insertion in model container [2023-10-12 17:18:01,433 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-10-12 17:18:01,433 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "example_unnecessary_interleavings.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:18:01" (2/2) ... [2023-10-12 17:18:01,434 INFO L332 chiAutomizerObserver]: Analyzing ICFG example_unnecessary_interleavings.bpl [2023-10-12 17:18:01,500 INFO L144 ThreadInstanceAdder]: Constructed 9 joinOtherThreadTransitions. [2023-10-12 17:18:01,535 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 29 places, 28 transitions, 98 flow [2023-10-12 17:18:01,566 INFO L124 PetriNetUnfolderBase]: 5/25 cut-off events. [2023-10-12 17:18:01,567 INFO L125 PetriNetUnfolderBase]: For 12/12 co-relation queries the response was YES. [2023-10-12 17:18:01,569 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47 conditions, 25 events. 5/25 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 33 event pairs, 0 based on Foata normal form. 0/24 useless extension candidates. Maximal degree in co-relation 20. Up to 6 conditions per place. [2023-10-12 17:18:01,570 INFO L82 GeneralOperation]: Start removeDead. Operand has 29 places, 28 transitions, 98 flow [2023-10-12 17:18:01,572 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 26 places, 22 transitions, 80 flow [2023-10-12 17:18:01,574 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-10-12 17:18:01,589 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 26 places, 22 transitions, 80 flow [2023-10-12 17:18:01,591 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 26 places, 22 transitions, 80 flow [2023-10-12 17:18:01,591 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 26 places, 22 transitions, 80 flow [2023-10-12 17:18:01,598 INFO L124 PetriNetUnfolderBase]: 5/25 cut-off events. [2023-10-12 17:18:01,598 INFO L125 PetriNetUnfolderBase]: For 12/12 co-relation queries the response was YES. [2023-10-12 17:18:01,599 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47 conditions, 25 events. 5/25 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 33 event pairs, 0 based on Foata normal form. 0/24 useless extension candidates. Maximal degree in co-relation 20. Up to 6 conditions per place. [2023-10-12 17:18:01,599 INFO L119 LiptonReduction]: Number of co-enabled transitions 84 [2023-10-12 17:18:01,655 INFO L134 LiptonReduction]: Checked pairs total: 90 [2023-10-12 17:18:01,655 INFO L136 LiptonReduction]: Total number of compositions: 4 [2023-10-12 17:18:01,666 INFO L305 stractBuchiCegarLoop]: Interprodecural is true [2023-10-12 17:18:01,666 INFO L306 stractBuchiCegarLoop]: Hoare is false [2023-10-12 17:18:01,666 INFO L307 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-10-12 17:18:01,667 INFO L308 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-10-12 17:18:01,667 INFO L309 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-10-12 17:18:01,667 INFO L310 stractBuchiCegarLoop]: Difference is false [2023-10-12 17:18:01,667 INFO L311 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-10-12 17:18:01,667 INFO L315 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiPetriNetCegarLoop ======== [2023-10-12 17:18:01,668 INFO L84 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 22 places, 18 transitions, 72 flow [2023-10-12 17:18:01,674 INFO L124 PetriNetUnfolderBase]: 5/21 cut-off events. [2023-10-12 17:18:01,675 INFO L125 PetriNetUnfolderBase]: For 12/12 co-relation queries the response was YES. [2023-10-12 17:18:01,675 INFO L88 BuchiIsEmpty]: Finished buchiIsEmpty language is empty [2023-10-12 17:18:01,679 INFO L201 PluginConnector]: Adding new model example_unnecessary_interleavings.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 12.10 05:18:01 BoogieIcfgContainer [2023-10-12 17:18:01,679 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-10-12 17:18:01,680 INFO L158 Benchmark]: Toolchain (without parser) took 446.68ms. Allocated memory is still 220.2MB. Free memory was 171.0MB in the beginning and 176.9MB in the end (delta: -5.9MB). There was no memory consumed. Max. memory is 8.0GB. [2023-10-12 17:18:01,680 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.25ms. Allocated memory is still 220.2MB. Free memory was 172.1MB in the beginning and 171.9MB in the end (delta: 130.1kB). There was no memory consumed. Max. memory is 8.0GB. [2023-10-12 17:18:01,681 INFO L158 Benchmark]: Boogie Procedure Inliner took 17.44ms. Allocated memory is still 220.2MB. Free memory was 171.0MB in the beginning and 169.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-10-12 17:18:01,682 INFO L158 Benchmark]: Boogie Preprocessor took 8.51ms. Allocated memory is still 220.2MB. Free memory was 169.4MB in the beginning and 168.5MB in the end (delta: 884.2kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-10-12 17:18:01,683 INFO L158 Benchmark]: RCFGBuilder took 165.96ms. Allocated memory is still 220.2MB. Free memory was 168.3MB in the beginning and 189.2MB in the end (delta: -20.9MB). Peak memory consumption was 14.9MB. Max. memory is 8.0GB. [2023-10-12 17:18:01,683 INFO L158 Benchmark]: BuchiAutomizer took 251.07ms. Allocated memory is still 220.2MB. Free memory was 188.9MB in the beginning and 176.9MB in the end (delta: 12.0MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2023-10-12 17:18:01,689 INFO L338 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 0.25ms. Allocated memory is still 220.2MB. Free memory was 172.1MB in the beginning and 171.9MB in the end (delta: 130.1kB). There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 17.44ms. Allocated memory is still 220.2MB. Free memory was 171.0MB in the beginning and 169.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 8.51ms. Allocated memory is still 220.2MB. Free memory was 169.4MB in the beginning and 168.5MB in the end (delta: 884.2kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 165.96ms. Allocated memory is still 220.2MB. Free memory was 168.3MB in the beginning and 189.2MB in the end (delta: -20.9MB). Peak memory consumption was 14.9MB. Max. memory is 8.0GB. * BuchiAutomizer took 251.07ms. Allocated memory is still 220.2MB. Free memory was 188.9MB in the beginning and 176.9MB in the end (delta: 12.0MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Trivial decomposition. There is no loop in your program. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.1s and 0 iterations. TraceHistogramMax:0. Analysis of lassos took 0.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. 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 [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.1s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.1s, 26 PlacesBefore, 22 PlacesAfterwards, 22 TransitionsBefore, 18 TransitionsAfterwards, 84 CoEnabledTransitionPairs, 1 FixpointIterations, 1 TrivialSequentialCompositions, 3 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 4 TotalNumberOfCompositions, 90 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 90, independent: 90, independent conditional: 0, independent unconditional: 90, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 48, independent: 48, independent conditional: 0, independent unconditional: 48, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 48, independent: 48, independent conditional: 0, independent unconditional: 48, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 90, independent: 42, independent conditional: 0, independent unconditional: 42, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 48, unknown conditional: 0, unknown unconditional: 48] , Statistics on independence cache: Total cache size (in pairs): 21, Positive cache size: 21, Positive conditional cache size: 0, Positive unconditional cache size: 21, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 RESULT: Ultimate proved your program to be correct! [2023-10-12 17:18:01,731 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...