/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/single_assertion_test.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.fs.omega-petrinet-ed1a3e5-m [2022-09-29 14:45:35,427 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-29 14:45:35,428 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-29 14:45:35,458 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-09-29 14:45:35,459 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-09-29 14:45:35,464 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-09-29 14:45:35,468 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-09-29 14:45:35,472 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-09-29 14:45:35,473 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-09-29 14:45:35,474 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-09-29 14:45:35,475 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-09-29 14:45:35,475 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-09-29 14:45:35,475 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-29 14:45:35,476 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-29 14:45:35,477 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-29 14:45:35,477 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-29 14:45:35,478 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-29 14:45:35,478 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-29 14:45:35,479 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-29 14:45:35,480 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-29 14:45:35,481 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-29 14:45:35,486 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-29 14:45:35,487 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-29 14:45:35,489 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-29 14:45:35,491 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-09-29 14:45:35,496 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-29 14:45:35,496 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-29 14:45:35,497 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-29 14:45:35,498 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/buchiAutomizer/concurrent-buchi-pn-semanticLbe.epf [2022-09-29 14:45:35,523 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-29 14:45:35,523 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-29 14:45:35,524 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-09-29 14:45:35,524 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-09-29 14:45:35,525 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-29 14:45:35,525 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-29 14:45:35,525 INFO L138 SettingsManager]: * Use SBE=true [2022-09-29 14:45:35,525 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-09-29 14:45:35,525 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-09-29 14:45:35,525 INFO L138 SettingsManager]: * Use old map elimination=false [2022-09-29 14:45:35,526 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-09-29 14:45:35,526 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-09-29 14:45:35,526 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-09-29 14:45:35,526 INFO L138 SettingsManager]: * Automaton type for concurrent programs=BUCHI_PETRI_NET [2022-09-29 14:45:35,526 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-29 14:45:35,526 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-29 14:45:35,526 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-09-29 14:45:35,526 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-29 14:45:35,526 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-29 14:45:35,526 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-29 14:45:35,527 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-09-29 14:45:35,527 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-09-29 14:45:35,527 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-09-29 14:45:35,527 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-29 14:45:35,528 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-29 14:45:35,528 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-09-29 14:45:35,528 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-29 14:45:35,528 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-09-29 14:45:35,528 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-29 14:45:35,528 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-29 14:45:35,528 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-29 14:45:35,529 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-29 14:45:35,529 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-09-29 14:45:35,529 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-09-29 14:45:35,712 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-29 14:45:35,725 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-29 14:45:35,726 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-29 14:45:35,727 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-09-29 14:45:35,728 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-09-29 14:45:35,729 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/single_assertion_test.bpl [2022-09-29 14:45:35,729 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/single_assertion_test.bpl' [2022-09-29 14:45:35,744 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-29 14:45:35,745 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-09-29 14:45:35,746 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-09-29 14:45:35,746 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-09-29 14:45:35,746 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-09-29 14:45:35,754 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "single_assertion_test.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 02:45:35" (1/1) ... [2022-09-29 14:45:35,758 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "single_assertion_test.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 02:45:35" (1/1) ... [2022-09-29 14:45:35,763 INFO L137 Inliner]: procedures = 2, calls = 1, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-09-29 14:45:35,764 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-09-29 14:45:35,765 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-29 14:45:35,765 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-29 14:45:35,765 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-29 14:45:35,770 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "single_assertion_test.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 02:45:35" (1/1) ... [2022-09-29 14:45:35,770 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "single_assertion_test.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 02:45:35" (1/1) ... [2022-09-29 14:45:35,770 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "single_assertion_test.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 02:45:35" (1/1) ... [2022-09-29 14:45:35,770 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "single_assertion_test.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 02:45:35" (1/1) ... [2022-09-29 14:45:35,772 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "single_assertion_test.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 02:45:35" (1/1) ... [2022-09-29 14:45:35,773 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "single_assertion_test.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 02:45:35" (1/1) ... [2022-09-29 14:45:35,774 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "single_assertion_test.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 02:45:35" (1/1) ... [2022-09-29 14:45:35,774 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-29 14:45:35,775 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-29 14:45:35,775 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-29 14:45:35,775 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-29 14:45:35,776 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "single_assertion_test.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 02:45:35" (1/1) ... [2022-09-29 14:45:35,781 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 14:45:35,786 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 14:45:35,796 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-09-29 14:45:35,801 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-09-29 14:45:35,833 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-09-29 14:45:35,833 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-29 14:45:35,833 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-29 14:45:35,833 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread given in one single declaration [2022-09-29 14:45:35,833 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2022-09-29 14:45:35,833 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2022-09-29 14:45:35,834 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-09-29 14:45:35,868 INFO L234 CfgBuilder]: Building ICFG [2022-09-29 14:45:35,870 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-29 14:45:35,942 INFO L275 CfgBuilder]: Performing block encoding [2022-09-29 14:45:35,948 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-29 14:45:35,949 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-09-29 14:45:35,951 INFO L202 PluginConnector]: Adding new model single_assertion_test.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.09 02:45:35 BoogieIcfgContainer [2022-09-29 14:45:35,951 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-29 14:45:35,952 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-09-29 14:45:35,952 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-09-29 14:45:35,955 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-09-29 14:45:35,956 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-09-29 14:45:35,957 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "single_assertion_test.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 02:45:35" (1/2) ... [2022-09-29 14:45:35,959 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@56184d38 and model type single_assertion_test.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.09 02:45:35, skipping insertion in model container [2022-09-29 14:45:35,960 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-09-29 14:45:35,960 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "single_assertion_test.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.09 02:45:35" (2/2) ... [2022-09-29 14:45:35,966 INFO L322 chiAutomizerObserver]: Analyzing ICFG single_assertion_test.bpl [2022-09-29 14:45:36,032 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-09-29 14:45:36,055 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 19 places, 17 transitions, 45 flow [2022-09-29 14:45:36,073 INFO L175 PetriNetUnfolderBase]: Searched whole Unfolding. [2022-09-29 14:45:36,074 INFO L123 PetriNetUnfolderBase]: 1/15 cut-off events. [2022-09-29 14:45:36,074 INFO L124 PetriNetUnfolderBase]: For 1/2 co-relation queries the response was YES. [2022-09-29 14:45:36,076 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21 conditions, 15 events. 1/15 cut-off events. For 1/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 16 event pairs, 0 based on Foata normal form. 0/12 useless extension candidates. Maximal degree in co-relation 6. Up to 2 conditions per place. [2022-09-29 14:45:36,076 INFO L82 GeneralOperation]: Start removeDead. Operand has 19 places, 17 transitions, 45 flow [2022-09-29 14:45:36,081 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 15 places, 13 transitions, 34 flow [2022-09-29 14:45:36,083 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-09-29 14:45:36,100 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 15 places, 13 transitions, 34 flow [2022-09-29 14:45:36,102 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 15 places, 13 transitions, 34 flow [2022-09-29 14:45:36,103 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 15 places, 13 transitions, 34 flow [2022-09-29 14:45:36,109 INFO L175 PetriNetUnfolderBase]: Searched whole Unfolding. [2022-09-29 14:45:36,109 INFO L123 PetriNetUnfolderBase]: 1/15 cut-off events. [2022-09-29 14:45:36,109 INFO L124 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2022-09-29 14:45:36,110 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21 conditions, 15 events. 1/15 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 19 event pairs, 0 based on Foata normal form. 0/12 useless extension candidates. Maximal degree in co-relation 6. Up to 2 conditions per place. [2022-09-29 14:45:36,110 INFO L116 LiptonReduction]: Number of co-enabled transitions 40 [2022-09-29 14:45:36,243 INFO L131 LiptonReduction]: Checked pairs total: 70 [2022-09-29 14:45:36,244 INFO L133 LiptonReduction]: Total number of compositions: 4 [2022-09-29 14:45:36,252 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-09-29 14:45:36,252 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-09-29 14:45:36,252 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-09-29 14:45:36,253 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-09-29 14:45:36,253 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-09-29 14:45:36,253 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-09-29 14:45:36,253 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-09-29 14:45:36,253 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiPetriNetCegarLoop ======== [2022-09-29 14:45:36,253 INFO L68 IsEmptyBuchi]: Start isEmptyBuchi. Operand has 12 places, 10 transitions, 28 flow [2022-09-29 14:45:36,257 INFO L76 AcceptsInfiniteWords]: Start buchiAccepts. Operand has 12 places, 10 transitions, 28 flow [2022-09-29 14:45:36,258 INFO L82 AcceptsInfiniteWords]: Finished buchiAccepts. [2022-09-29 14:45:36,259 INFO L157 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2022-09-29 14:45:36,259 INFO L123 PetriNetUnfolderBase]: 0/10 cut-off events. [2022-09-29 14:45:36,259 INFO L124 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2022-09-29 14:45:36,259 INFO L78 IsEmptyBuchi]: Finished isEmptyBuchi language is not empty [2022-09-29 14:45:36,261 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-09-29 14:45:36,261 INFO L68 IsEmptyBuchi]: Start isEmptyBuchi. Operand has 12 places, 10 transitions, 28 flow [2022-09-29 14:45:36,271 INFO L76 AcceptsInfiniteWords]: Start buchiAccepts. Operand has 12 places, 10 transitions, 28 flow [2022-09-29 14:45:36,271 INFO L82 AcceptsInfiniteWords]: Finished buchiAccepts. [2022-09-29 14:45:36,271 INFO L157 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2022-09-29 14:45:36,271 INFO L123 PetriNetUnfolderBase]: 0/10 cut-off events. [2022-09-29 14:45:36,271 INFO L124 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2022-09-29 14:45:36,271 INFO L78 IsEmptyBuchi]: Finished isEmptyBuchi language is not empty [2022-09-29 14:45:36,276 INFO L733 eck$LassoCheckResult]: Stem: 23#[ULTIMATE.startENTRY]true [45] ULTIMATE.startENTRY-->L22-1: Formula: (and (= v_x_10 0) (= 0 v_ULTIMATE.start_i_9)) InVars {} OutVars{ULTIMATE.start_i=v_ULTIMATE.start_i_9, x=v_x_10} AuxVars[] AssignedVars[ULTIMATE.start_i, x] 25#[L22-1]true [20] L22-1-->L24: Formula: (< v_ULTIMATE.start_i_2 2) InVars {ULTIMATE.start_i=v_ULTIMATE.start_i_2} OutVars{ULTIMATE.start_i=v_ULTIMATE.start_i_2} AuxVars[] AssignedVars[] 27#[L24]true [40] L24-->threadENTRY: Formula: (and (= v_threadThread1of1ForFork0_i_6 v_ULTIMATE.start_i_8) (= v_threadThread1of1ForFork0_thidvar0_2 v_ULTIMATE.start_i_8)) InVars {ULTIMATE.start_i=v_ULTIMATE.start_i_8} OutVars{threadThread1of1ForFork0_i=v_threadThread1of1ForFork0_i_6, ULTIMATE.start_i=v_ULTIMATE.start_i_8, threadThread1of1ForFork0_thidvar0=v_threadThread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[threadThread1of1ForFork0_i, threadThread1of1ForFork0_thidvar0] 29#[threadENTRY, L24-1]true [25] L24-1-->L22-1: Formula: (= (+ 1 v_ULTIMATE.start_i_4) v_ULTIMATE.start_i_3) InVars {ULTIMATE.start_i=v_ULTIMATE.start_i_4} OutVars{ULTIMATE.start_i=v_ULTIMATE.start_i_3} AuxVars[] AssignedVars[ULTIMATE.start_i] 31#[L22-1, threadENTRY]true [20] L22-1-->L24: Formula: (< v_ULTIMATE.start_i_2 2) InVars {ULTIMATE.start_i=v_ULTIMATE.start_i_2} OutVars{ULTIMATE.start_i=v_ULTIMATE.start_i_2} AuxVars[] AssignedVars[] 33#[threadENTRY, L24]true [38] L24-->ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] 35#[threadENTRY, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES]true [2022-09-29 14:45:36,276 INFO L735 eck$LassoCheckResult]: Loop: 35#[threadENTRY, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES]true [39] ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES-->ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] 35#[threadENTRY, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES]true [2022-09-29 14:45:36,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 14:45:36,281 INFO L85 PathProgramCache]: Analyzing trace with hash -2099465077, now seen corresponding path program 1 times [2022-09-29 14:45:36,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 14:45:36,287 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65805536] [2022-09-29 14:45:36,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 14:45:36,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 14:45:36,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 14:45:36,351 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-09-29 14:45:36,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 14:45:36,376 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-09-29 14:45:36,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 14:45:36,381 INFO L85 PathProgramCache]: Analyzing trace with hash 70, now seen corresponding path program 1 times [2022-09-29 14:45:36,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 14:45:36,382 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663822605] [2022-09-29 14:45:36,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 14:45:36,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 14:45:36,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 14:45:36,387 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-09-29 14:45:36,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 14:45:36,391 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-09-29 14:45:36,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 14:45:36,392 INFO L85 PathProgramCache]: Analyzing trace with hash -658907908, now seen corresponding path program 1 times [2022-09-29 14:45:36,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 14:45:36,392 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268628327] [2022-09-29 14:45:36,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 14:45:36,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 14:45:36,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 14:45:36,409 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-09-29 14:45:36,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 14:45:36,418 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-09-29 14:45:36,512 WARN L146 chiAutomizerObserver]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-09-29 14:45:36,528 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-09-29 14:45:36,530 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 26 places, 24 transitions, 72 flow [2022-09-29 14:45:36,535 INFO L175 PetriNetUnfolderBase]: Searched whole Unfolding. [2022-09-29 14:45:36,535 INFO L123 PetriNetUnfolderBase]: 2/30 cut-off events. [2022-09-29 14:45:36,535 INFO L124 PetriNetUnfolderBase]: For 7/9 co-relation queries the response was YES. [2022-09-29 14:45:36,535 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45 conditions, 30 events. 2/30 cut-off events. For 7/9 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 51 event pairs, 0 based on Foata normal form. 0/24 useless extension candidates. Maximal degree in co-relation 20. Up to 4 conditions per place. [2022-09-29 14:45:36,535 INFO L82 GeneralOperation]: Start removeDead. Operand has 26 places, 24 transitions, 72 flow [2022-09-29 14:45:36,536 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 26 places, 24 transitions, 72 flow [2022-09-29 14:45:36,536 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-09-29 14:45:36,536 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 26 places, 24 transitions, 72 flow [2022-09-29 14:45:36,537 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 26 places, 24 transitions, 72 flow [2022-09-29 14:45:36,537 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 26 places, 24 transitions, 72 flow [2022-09-29 14:45:36,540 INFO L175 PetriNetUnfolderBase]: Searched whole Unfolding. [2022-09-29 14:45:36,540 INFO L123 PetriNetUnfolderBase]: 2/30 cut-off events. [2022-09-29 14:45:36,540 INFO L124 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2022-09-29 14:45:36,541 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45 conditions, 30 events. 2/30 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 53 event pairs, 0 based on Foata normal form. 0/24 useless extension candidates. Maximal degree in co-relation 20. Up to 4 conditions per place. [2022-09-29 14:45:36,541 INFO L116 LiptonReduction]: Number of co-enabled transitions 136 [2022-09-29 14:45:36,631 INFO L131 LiptonReduction]: Checked pairs total: 250 [2022-09-29 14:45:36,631 INFO L133 LiptonReduction]: Total number of compositions: 8 [2022-09-29 14:45:36,632 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-09-29 14:45:36,632 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-09-29 14:45:36,632 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-09-29 14:45:36,632 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-09-29 14:45:36,632 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-09-29 14:45:36,633 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-09-29 14:45:36,633 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-09-29 14:45:36,633 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiPetriNetCegarLoop ======== [2022-09-29 14:45:36,633 INFO L68 IsEmptyBuchi]: Start isEmptyBuchi. Operand has 20 places, 18 transitions, 60 flow [2022-09-29 14:45:36,635 INFO L76 AcceptsInfiniteWords]: Start buchiAccepts. Operand has 20 places, 18 transitions, 60 flow [2022-09-29 14:45:36,636 INFO L82 AcceptsInfiniteWords]: Finished buchiAccepts. [2022-09-29 14:45:36,636 INFO L157 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2022-09-29 14:45:36,636 INFO L123 PetriNetUnfolderBase]: 0/17 cut-off events. [2022-09-29 14:45:36,636 INFO L124 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2022-09-29 14:45:36,636 INFO L78 IsEmptyBuchi]: Finished isEmptyBuchi language is not empty [2022-09-29 14:45:36,636 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-09-29 14:45:36,637 INFO L68 IsEmptyBuchi]: Start isEmptyBuchi. Operand has 20 places, 18 transitions, 60 flow [2022-09-29 14:45:36,639 INFO L76 AcceptsInfiniteWords]: Start buchiAccepts. Operand has 20 places, 18 transitions, 60 flow [2022-09-29 14:45:36,639 INFO L82 AcceptsInfiniteWords]: Finished buchiAccepts. [2022-09-29 14:45:36,639 INFO L157 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2022-09-29 14:45:36,639 INFO L123 PetriNetUnfolderBase]: 0/17 cut-off events. [2022-09-29 14:45:36,640 INFO L124 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2022-09-29 14:45:36,640 INFO L78 IsEmptyBuchi]: Finished isEmptyBuchi language is not empty [2022-09-29 14:45:36,640 INFO L733 eck$LassoCheckResult]: Stem: 30#[ULTIMATE.startENTRY]true [83] ULTIMATE.startENTRY-->L22-1: Formula: (and (= v_ULTIMATE.start_i_19 0) (= v_x_43 0)) InVars {} OutVars{ULTIMATE.start_i=v_ULTIMATE.start_i_19, x=v_x_43} AuxVars[] AssignedVars[ULTIMATE.start_i, x] 32#[L22-1]true [48] L22-1-->L24: Formula: (< v_ULTIMATE.start_i_2 2) InVars {ULTIMATE.start_i=v_ULTIMATE.start_i_2} OutVars{ULTIMATE.start_i=v_ULTIMATE.start_i_2} AuxVars[] AssignedVars[] 34#[L24]true [72] L24-->threadENTRY: Formula: (and (= v_threadThread1of2ForFork0_i_6 v_ULTIMATE.start_i_15) (= v_threadThread1of2ForFork0_thidvar0_2 v_ULTIMATE.start_i_15)) InVars {ULTIMATE.start_i=v_ULTIMATE.start_i_15} OutVars{threadThread1of2ForFork0_thidvar0=v_threadThread1of2ForFork0_thidvar0_2, ULTIMATE.start_i=v_ULTIMATE.start_i_15, threadThread1of2ForFork0_i=v_threadThread1of2ForFork0_i_6} AuxVars[] AssignedVars[threadThread1of2ForFork0_thidvar0, threadThread1of2ForFork0_i] 36#[threadENTRY, L24-1]true [53] L24-1-->L22-1: Formula: (= (+ 1 v_ULTIMATE.start_i_4) v_ULTIMATE.start_i_3) InVars {ULTIMATE.start_i=v_ULTIMATE.start_i_4} OutVars{ULTIMATE.start_i=v_ULTIMATE.start_i_3} AuxVars[] AssignedVars[ULTIMATE.start_i] 38#[L22-1, threadENTRY]true [48] L22-1-->L24: Formula: (< v_ULTIMATE.start_i_2 2) InVars {ULTIMATE.start_i=v_ULTIMATE.start_i_2} OutVars{ULTIMATE.start_i=v_ULTIMATE.start_i_2} AuxVars[] AssignedVars[] 40#[threadENTRY, L24]true [73] L24-->threadENTRY: Formula: (and (= v_threadThread2of2ForFork0_thidvar0_2 v_ULTIMATE.start_i_18) (= v_threadThread2of2ForFork0_i_6 v_ULTIMATE.start_i_18)) InVars {ULTIMATE.start_i=v_ULTIMATE.start_i_18} OutVars{ULTIMATE.start_i=v_ULTIMATE.start_i_18, threadThread2of2ForFork0_thidvar0=v_threadThread2of2ForFork0_thidvar0_2, threadThread2of2ForFork0_i=v_threadThread2of2ForFork0_i_6} AuxVars[] AssignedVars[threadThread2of2ForFork0_thidvar0, threadThread2of2ForFork0_i] 42#[threadENTRY, threadENTRY, L24-1]true [53] L24-1-->L22-1: Formula: (= (+ 1 v_ULTIMATE.start_i_4) v_ULTIMATE.start_i_3) InVars {ULTIMATE.start_i=v_ULTIMATE.start_i_4} OutVars{ULTIMATE.start_i=v_ULTIMATE.start_i_3} AuxVars[] AssignedVars[ULTIMATE.start_i] 44#[L22-1, threadENTRY, threadENTRY]true [48] L22-1-->L24: Formula: (< v_ULTIMATE.start_i_2 2) InVars {ULTIMATE.start_i=v_ULTIMATE.start_i_2} OutVars{ULTIMATE.start_i=v_ULTIMATE.start_i_2} AuxVars[] AssignedVars[] 46#[threadENTRY, threadENTRY, L24]true [70] L24-->ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] 48#[threadENTRY, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, threadENTRY]true [2022-09-29 14:45:36,640 INFO L735 eck$LassoCheckResult]: Loop: 48#[threadENTRY, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, threadENTRY]true [71] ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES-->ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] 48#[threadENTRY, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, threadENTRY]true [2022-09-29 14:45:36,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 14:45:36,641 INFO L85 PathProgramCache]: Analyzing trace with hash -1096171577, now seen corresponding path program 1 times [2022-09-29 14:45:36,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 14:45:36,641 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408544254] [2022-09-29 14:45:36,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 14:45:36,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 14:45:36,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 14:45:36,725 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-29 14:45:36,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-29 14:45:36,726 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408544254] [2022-09-29 14:45:36,726 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1408544254] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-29 14:45:36,726 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-29 14:45:36,726 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-09-29 14:45:36,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694869799] [2022-09-29 14:45:36,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-29 14:45:36,732 INFO L738 eck$LassoCheckResult]: stem already infeasible [2022-09-29 14:45:36,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 14:45:36,732 INFO L85 PathProgramCache]: Analyzing trace with hash 102, now seen corresponding path program 1 times [2022-09-29 14:45:36,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 14:45:36,733 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596492592] [2022-09-29 14:45:36,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 14:45:36,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 14:45:36,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 14:45:36,737 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-09-29 14:45:36,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 14:45:36,738 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-09-29 14:45:36,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-29 14:45:36,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-09-29 14:45:36,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-09-29 14:45:36,762 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 20 places, 18 transitions, 60 flow. Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-29 14:45:36,763 INFO L124 encePairwiseOnDemand]: Subtrahend is not yet constructed. Will not use universal subtrahend loopers optimization. [2022-09-29 14:45:36,764 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-29 14:45:36,827 INFO L175 PetriNetUnfolderBase]: Searched whole Unfolding. [2022-09-29 14:45:36,828 INFO L123 PetriNetUnfolderBase]: 41/93 cut-off events. [2022-09-29 14:45:36,828 INFO L124 PetriNetUnfolderBase]: For 12/12 co-relation queries the response was YES. [2022-09-29 14:45:36,828 INFO L83 FinitePrefix]: Finished finitePrefix Result has 210 conditions, 93 events. 41/93 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 236 event pairs, 0 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 67. Up to 63 conditions per place. [2022-09-29 14:45:36,830 INFO L140 encePairwiseOnDemand]: 28/32 looper letters, 21 selfloop transitions, 5 changer transitions 0/26 dead transitions. [2022-09-29 14:45:36,831 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 23 places, 26 transitions, 124 flow [2022-09-29 14:45:36,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-29 14:45:36,835 INFO L428 stractBuchiCegarLoop]: Abstraction has has 23 places, 26 transitions, 124 flow [2022-09-29 14:45:36,835 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-09-29 14:45:36,836 INFO L68 IsEmptyBuchi]: Start isEmptyBuchi. Operand has 23 places, 26 transitions, 124 flow [2022-09-29 14:45:36,851 INFO L175 PetriNetUnfolderBase]: Searched whole Unfolding. [2022-09-29 14:45:36,851 INFO L123 PetriNetUnfolderBase]: 41/93 cut-off events. [2022-09-29 14:45:36,851 INFO L124 PetriNetUnfolderBase]: For 12/12 co-relation queries the response was YES. [2022-09-29 14:45:36,853 INFO L47 CFPrefixIsEmptyBuchi]: Starting emptiness check. [2022-09-29 14:45:36,853 INFO L62 CFPrefixIsEmptyBuchi]: Starting cutoff event analysis. [2022-09-29 14:45:36,853 INFO L72 CFPrefixIsEmptyBuchi]: Ended cutoff event analysis. [2022-09-29 14:45:36,853 INFO L76 CFPrefixIsEmptyBuchi]: Type 1 Lasso search started. [2022-09-29 14:45:36,853 INFO L87 CFPrefixIsEmptyBuchi]: Type 1 Lasso search ended. [2022-09-29 14:45:36,853 INFO L107 CFPrefixIsEmptyBuchi]: Type 3 Lasso search started. [2022-09-29 14:45:36,854 INFO L206 CFPrefixIsEmptyBuchi]: Type 3 Lasso search ended. [2022-09-29 14:45:36,854 INFO L50 CFPrefixIsEmptyBuchi]: Finished emptiness check, language is empty [2022-09-29 14:45:36,854 INFO L78 IsEmptyBuchi]: Finished isEmptyBuchi language is empty [2022-09-29 14:45:36,858 INFO L202 PluginConnector]: Adding new model single_assertion_test.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.09 02:45:36 BoogieIcfgContainer [2022-09-29 14:45:36,858 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-09-29 14:45:36,862 INFO L158 Benchmark]: Toolchain (without parser) took 1113.65ms. Allocated memory was 221.2MB in the beginning and 297.8MB in the end (delta: 76.5MB). Free memory was 181.9MB in the beginning and 265.8MB in the end (delta: -83.9MB). There was no memory consumed. Max. memory is 8.0GB. [2022-09-29 14:45:36,863 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.09ms. Allocated memory is still 221.2MB. Free memory is still 183.0MB. There was no memory consumed. Max. memory is 8.0GB. [2022-09-29 14:45:36,863 INFO L158 Benchmark]: Boogie Procedure Inliner took 18.03ms. Allocated memory is still 221.2MB. Free memory was 181.9MB in the beginning and 180.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-09-29 14:45:36,864 INFO L158 Benchmark]: Boogie Preprocessor took 9.68ms. Allocated memory is still 221.2MB. Free memory was 180.4MB in the beginning and 179.5MB in the end (delta: 898.0kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-09-29 14:45:36,864 INFO L158 Benchmark]: RCFGBuilder took 176.55ms. Allocated memory is still 221.2MB. Free memory was 179.4MB in the beginning and 171.3MB in the end (delta: 8.1MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2022-09-29 14:45:36,865 INFO L158 Benchmark]: BuchiAutomizer took 906.40ms. Allocated memory was 221.2MB in the beginning and 297.8MB in the end (delta: 76.5MB). Free memory was 171.1MB in the beginning and 265.8MB in the end (delta: -94.7MB). There was no memory consumed. Max. memory is 8.0GB. [2022-09-29 14:45:36,867 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.09ms. Allocated memory is still 221.2MB. Free memory is still 183.0MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 18.03ms. Allocated memory is still 221.2MB. Free memory was 181.9MB in the beginning and 180.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 9.68ms. Allocated memory is still 221.2MB. Free memory was 180.4MB in the beginning and 179.5MB in the end (delta: 898.0kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 176.55ms. Allocated memory is still 221.2MB. Free memory was 179.4MB in the beginning and 171.3MB in the end (delta: 8.1MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * BuchiAutomizer took 906.40ms. Allocated memory was 221.2MB in the beginning and 297.8MB in the end (delta: 76.5MB). Free memory was 171.1MB in the beginning and 265.8MB in the end (delta: -94.7MB). There was no memory consumed. 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 (1 trivial, 0 deterministic, 0 nondeterministic). 1 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.5s and 3 iterations. TraceHistogramMax:0. Analysis of lassos took 0.3s. 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: 0 mSolverCounterUnknown, 23 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 23 mSDsluCounter, 1 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 37 IncrementalHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 1 mSDtfsCounter, 37 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN1 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.3s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.1s, 15 PlacesBefore, 12 PlacesAfterwards, 13 TransitionsBefore, 10 TransitionsAfterwards, 40 CoEnabledTransitionPairs, 2 FixpointIterations, 1 TrivialSequentialCompositions, 3 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 4 TotalNumberOfCompositions, 70 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 70, positive: 70, positive conditional: 0, positive unconditional: 70, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 31, positive: 31, positive conditional: 0, positive unconditional: 31, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 31, positive: 31, positive conditional: 0, positive unconditional: 31, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 70, positive: 39, positive conditional: 0, positive unconditional: 39, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 31, unknown conditional: 0, unknown unconditional: 31] , Statistics on independence cache: Total cache size (in pairs): 13, Positive cache size: 13, Positive conditional cache size: 0, Positive unconditional cache size: 13, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.1s, 26 PlacesBefore, 20 PlacesAfterwards, 24 TransitionsBefore, 18 TransitionsAfterwards, 136 CoEnabledTransitionPairs, 2 FixpointIterations, 2 TrivialSequentialCompositions, 6 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 8 TotalNumberOfCompositions, 250 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 250, positive: 250, positive conditional: 0, positive unconditional: 250, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 96, positive: 96, positive conditional: 0, positive unconditional: 96, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 96, positive: 90, positive conditional: 0, positive unconditional: 90, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 6, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 9, positive: 9, positive conditional: 0, positive unconditional: 9, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 250, positive: 154, positive conditional: 0, positive unconditional: 154, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 96, unknown conditional: 0, unknown unconditional: 96] , Statistics on independence cache: Total cache size (in pairs): 35, Positive cache size: 35, Positive conditional cache size: 0, Positive unconditional cache size: 35, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 RESULT: Ultimate proved your program to be correct! [2022-09-29 14:45:36,896 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...