/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-automaton-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 14:45:26,546 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-29 14:45:26,547 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-29 14:45:26,571 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-09-29 14:45:26,571 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-09-29 14:45:26,572 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-09-29 14:45:26,573 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-09-29 14:45:26,574 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-09-29 14:45:26,575 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-09-29 14:45:26,575 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-09-29 14:45:26,576 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-09-29 14:45:26,576 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-09-29 14:45:26,577 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-29 14:45:26,577 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-29 14:45:26,578 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-29 14:45:26,578 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-29 14:45:26,579 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-29 14:45:26,580 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-29 14:45:26,581 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-29 14:45:26,582 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-29 14:45:26,583 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-29 14:45:26,584 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-29 14:45:26,585 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-29 14:45:26,585 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-29 14:45:26,588 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-09-29 14:45:26,588 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-09-29 14:45:26,588 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-09-29 14:45:26,589 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-09-29 14:45:26,589 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-09-29 14:45:26,590 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-09-29 14:45:26,590 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-09-29 14:45:26,591 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-09-29 14:45:26,591 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-09-29 14:45:26,591 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-09-29 14:45:26,592 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-09-29 14:45:26,592 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-09-29 14:45:26,593 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-09-29 14:45:26,593 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-09-29 14:45:26,593 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-29 14:45:26,594 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-29 14:45:26,594 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-29 14:45:26,595 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/buchiAutomizer/concurrent-automaton-semanticLbe.epf [2022-09-29 14:45:26,609 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-29 14:45:26,609 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-29 14:45:26,609 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-09-29 14:45:26,610 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-09-29 14:45:26,610 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-29 14:45:26,611 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-29 14:45:26,611 INFO L138 SettingsManager]: * Use SBE=true [2022-09-29 14:45:26,611 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-09-29 14:45:26,611 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-09-29 14:45:26,611 INFO L138 SettingsManager]: * Use old map elimination=false [2022-09-29 14:45:26,612 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-09-29 14:45:26,612 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-09-29 14:45:26,612 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-09-29 14:45:26,612 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-29 14:45:26,612 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-29 14:45:26,612 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-09-29 14:45:26,612 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-29 14:45:26,612 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-29 14:45:26,612 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-29 14:45:26,612 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-09-29 14:45:26,612 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-09-29 14:45:26,613 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-09-29 14:45:26,613 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-29 14:45:26,613 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-29 14:45:26,613 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-09-29 14:45:26,613 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-29 14:45:26,613 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-09-29 14:45:26,613 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-29 14:45:26,613 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-29 14:45:26,613 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-29 14:45:26,614 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-29 14:45:26,615 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-09-29 14:45:26,615 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-09-29 14:45:26,803 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-29 14:45:26,817 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-29 14:45:26,819 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-29 14:45:26,819 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-09-29 14:45:26,839 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-09-29 14:45:26,840 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/single_assertion_test.bpl [2022-09-29 14:45:26,840 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/single_assertion_test.bpl' [2022-09-29 14:45:26,858 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-29 14:45:26,859 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-09-29 14:45:26,867 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-09-29 14:45:26,867 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-09-29 14:45:26,867 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-09-29 14:45:26,892 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 02:45:26" (1/1) ... [2022-09-29 14:45:26,897 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 02:45:26" (1/1) ... [2022-09-29 14:45:26,907 INFO L137 Inliner]: procedures = 2, calls = 1, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-09-29 14:45:26,908 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-09-29 14:45:26,910 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-29 14:45:26,910 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-29 14:45:26,910 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-29 14:45:26,915 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 02:45:26" (1/1) ... [2022-09-29 14:45:26,916 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 02:45:26" (1/1) ... [2022-09-29 14:45:26,916 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 02:45:26" (1/1) ... [2022-09-29 14:45:26,916 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 02:45:26" (1/1) ... [2022-09-29 14:45:26,917 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 02:45:26" (1/1) ... [2022-09-29 14:45:26,919 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 02:45:26" (1/1) ... [2022-09-29 14:45:26,920 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 02:45:26" (1/1) ... [2022-09-29 14:45:26,920 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-29 14:45:26,921 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-29 14:45:26,921 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-29 14:45:26,921 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-29 14:45:26,923 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 02:45:26" (1/1) ... [2022-09-29 14:45:26,927 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-09-29 14:45:26,937 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 14:45:26,950 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 14:45:26,956 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 14:45:26,980 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-09-29 14:45:26,980 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-29 14:45:26,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-29 14:45:26,981 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread given in one single declaration [2022-09-29 14:45:26,981 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2022-09-29 14:45:26,981 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2022-09-29 14:45:26,981 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 14:45:27,014 INFO L234 CfgBuilder]: Building ICFG [2022-09-29 14:45:27,015 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-29 14:45:27,074 INFO L275 CfgBuilder]: Performing block encoding [2022-09-29 14:45:27,078 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-29 14:45:27,079 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-09-29 14:45:27,080 INFO L202 PluginConnector]: Adding new model single_assertion_test.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.09 02:45:27 BoogieIcfgContainer [2022-09-29 14:45:27,080 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-29 14:45:27,081 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-09-29 14:45:27,081 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-09-29 14:45:27,083 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-09-29 14:45:27,084 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-09-29 14:45:27,084 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 02:45:26" (1/2) ... [2022-09-29 14:45:27,085 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1db1d66b and model type single_assertion_test.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.09 02:45:27, skipping insertion in model container [2022-09-29 14:45:27,085 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-09-29 14:45:27,085 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 02:45:27" (2/2) ... [2022-09-29 14:45:27,086 INFO L322 chiAutomizerObserver]: Analyzing ICFG single_assertion_test.bpl [2022-09-29 14:45:27,127 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-09-29 14:45:27,146 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 19 places, 17 transitions, 45 flow [2022-09-29 14:45:27,177 INFO L175 PetriNetUnfolderBase]: Searched whole Unfolding. [2022-09-29 14:45:27,177 INFO L123 PetriNetUnfolderBase]: 1/15 cut-off events. [2022-09-29 14:45:27,177 INFO L124 PetriNetUnfolderBase]: For 1/2 co-relation queries the response was YES. [2022-09-29 14:45:27,179 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 14:45:27,179 INFO L82 GeneralOperation]: Start removeDead. Operand has 19 places, 17 transitions, 45 flow [2022-09-29 14:45:27,183 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 15 places, 13 transitions, 34 flow [2022-09-29 14:45:27,188 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-09-29 14:45:27,198 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 15 places, 13 transitions, 34 flow [2022-09-29 14:45:27,200 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 15 places, 13 transitions, 34 flow [2022-09-29 14:45:27,201 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 15 places, 13 transitions, 34 flow [2022-09-29 14:45:27,205 INFO L175 PetriNetUnfolderBase]: Searched whole Unfolding. [2022-09-29 14:45:27,205 INFO L123 PetriNetUnfolderBase]: 1/15 cut-off events. [2022-09-29 14:45:27,205 INFO L124 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2022-09-29 14:45:27,206 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 14:45:27,206 INFO L116 LiptonReduction]: Number of co-enabled transitions 40 [2022-09-29 14:45:27,296 INFO L131 LiptonReduction]: Checked pairs total: 70 [2022-09-29 14:45:27,296 INFO L133 LiptonReduction]: Total number of compositions: 4 [2022-09-29 14:45:27,317 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-09-29 14:45:27,320 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-09-29 14:45:27,320 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-09-29 14:45:27,320 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-09-29 14:45:27,320 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-09-29 14:45:27,320 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-09-29 14:45:27,321 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-09-29 14:45:27,321 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-09-29 14:45:27,323 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 0 states, but on-demand construction may add more states [2022-09-29 14:45:27,343 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 3 [2022-09-29 14:45:27,343 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-09-29 14:45:27,343 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-09-29 14:45:27,346 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1] [2022-09-29 14:45:27,347 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2022-09-29 14:45:27,347 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-09-29 14:45:27,347 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 19 states, but on-demand construction may add more states [2022-09-29 14:45:27,361 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 3 [2022-09-29 14:45:27,362 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-09-29 14:45:27,362 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-09-29 14:45:27,362 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1] [2022-09-29 14:45:27,362 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2022-09-29 14:45:27,366 INFO L733 eck$LassoCheckResult]: Stem: 22#[ULTIMATE.startENTRY]don't care [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]don't care [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]don't care [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] 31#[threadENTRY, L24-1]don't care [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] 33#[threadENTRY, L22-1]don't care [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[] 39#[threadENTRY, L24]don't care [38] L24-->ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] 47#[threadENTRY, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES]don't care [2022-09-29 14:45:27,366 INFO L735 eck$LassoCheckResult]: Loop: 47#[threadENTRY, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES]don't care [39] ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES-->ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] 47#[threadENTRY, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES]don't care [2022-09-29 14:45:27,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 14:45:27,370 INFO L85 PathProgramCache]: Analyzing trace with hash -2099465077, now seen corresponding path program 1 times [2022-09-29 14:45:27,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 14:45:27,376 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522843849] [2022-09-29 14:45:27,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 14:45:27,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 14:45:27,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 14:45:27,430 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-09-29 14:45:27,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 14:45:27,443 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-09-29 14:45:27,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 14:45:27,445 INFO L85 PathProgramCache]: Analyzing trace with hash 70, now seen corresponding path program 1 times [2022-09-29 14:45:27,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 14:45:27,446 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699966417] [2022-09-29 14:45:27,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 14:45:27,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 14:45:27,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 14:45:27,448 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-09-29 14:45:27,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 14:45:27,450 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-09-29 14:45:27,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 14:45:27,451 INFO L85 PathProgramCache]: Analyzing trace with hash -658907908, now seen corresponding path program 1 times [2022-09-29 14:45:27,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 14:45:27,452 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [131032858] [2022-09-29 14:45:27,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 14:45:27,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 14:45:27,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 14:45:27,457 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-09-29 14:45:27,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 14:45:27,461 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-09-29 14:45:27,559 WARN L146 chiAutomizerObserver]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-09-29 14:45:27,565 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-09-29 14:45:27,568 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 26 places, 24 transitions, 72 flow [2022-09-29 14:45:27,573 INFO L175 PetriNetUnfolderBase]: Searched whole Unfolding. [2022-09-29 14:45:27,573 INFO L123 PetriNetUnfolderBase]: 2/30 cut-off events. [2022-09-29 14:45:27,573 INFO L124 PetriNetUnfolderBase]: For 7/9 co-relation queries the response was YES. [2022-09-29 14:45:27,574 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 14:45:27,574 INFO L82 GeneralOperation]: Start removeDead. Operand has 26 places, 24 transitions, 72 flow [2022-09-29 14:45:27,575 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 26 places, 24 transitions, 72 flow [2022-09-29 14:45:27,575 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-09-29 14:45:27,575 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 26 places, 24 transitions, 72 flow [2022-09-29 14:45:27,575 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 26 places, 24 transitions, 72 flow [2022-09-29 14:45:27,575 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 26 places, 24 transitions, 72 flow [2022-09-29 14:45:27,579 INFO L175 PetriNetUnfolderBase]: Searched whole Unfolding. [2022-09-29 14:45:27,580 INFO L123 PetriNetUnfolderBase]: 2/30 cut-off events. [2022-09-29 14:45:27,580 INFO L124 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2022-09-29 14:45:27,580 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 14:45:27,580 INFO L116 LiptonReduction]: Number of co-enabled transitions 136 [2022-09-29 14:45:27,691 INFO L131 LiptonReduction]: Checked pairs total: 250 [2022-09-29 14:45:27,692 INFO L133 LiptonReduction]: Total number of compositions: 8 [2022-09-29 14:45:27,695 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-09-29 14:45:27,696 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-09-29 14:45:27,696 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-09-29 14:45:27,696 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-09-29 14:45:27,696 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-09-29 14:45:27,696 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-09-29 14:45:27,696 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-09-29 14:45:27,696 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-09-29 14:45:27,696 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 0 states, but on-demand construction may add more states [2022-09-29 14:45:27,710 INFO L131 ngComponentsAnalysis]: Automaton has 9 accepting balls. 9 [2022-09-29 14:45:27,710 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-09-29 14:45:27,710 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-09-29 14:45:27,710 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 2, 1, 1, 1, 1] [2022-09-29 14:45:27,710 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2022-09-29 14:45:27,711 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-09-29 14:45:27,711 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 70 states, but on-demand construction may add more states [2022-09-29 14:45:27,715 INFO L131 ngComponentsAnalysis]: Automaton has 9 accepting balls. 9 [2022-09-29 14:45:27,715 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-09-29 14:45:27,715 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-09-29 14:45:27,716 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 2, 1, 1, 1, 1] [2022-09-29 14:45:27,716 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2022-09-29 14:45:27,719 INFO L733 eck$LassoCheckResult]: Stem: 29#[ULTIMATE.startENTRY]don't care [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]don't care [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]don't care [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] 38#[L24-1, threadENTRY]don't care [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] 42#[L22-1, threadENTRY]don't care [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[] 48#[threadENTRY, L24]don't care [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] 60#[threadENTRY, threadENTRY, L24-1]don't care [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] 72#[L22-1, threadENTRY, threadENTRY]don't care [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[] 92#[L24, threadENTRY, threadENTRY]don't care [70] L24-->ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] 120#[ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, threadENTRY, threadENTRY]don't care [2022-09-29 14:45:27,719 INFO L735 eck$LassoCheckResult]: Loop: 120#[ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, threadENTRY, threadENTRY]don't care [71] ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES-->ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] 120#[ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, threadENTRY, threadENTRY]don't care [2022-09-29 14:45:27,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 14:45:27,720 INFO L85 PathProgramCache]: Analyzing trace with hash -1096171577, now seen corresponding path program 1 times [2022-09-29 14:45:27,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 14:45:27,720 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729601971] [2022-09-29 14:45:27,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 14:45:27,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 14:45:27,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 14:45:27,782 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 14:45:27,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-29 14:45:27,789 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1729601971] [2022-09-29 14:45:27,790 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1729601971] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-29 14:45:27,790 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-29 14:45:27,790 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-09-29 14:45:27,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367226863] [2022-09-29 14:45:27,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-29 14:45:27,796 INFO L738 eck$LassoCheckResult]: stem already infeasible [2022-09-29 14:45:27,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 14:45:27,797 INFO L85 PathProgramCache]: Analyzing trace with hash 102, now seen corresponding path program 1 times [2022-09-29 14:45:27,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 14:45:27,797 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851265574] [2022-09-29 14:45:27,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 14:45:27,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 14:45:27,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 14:45:27,806 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-09-29 14:45:27,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-09-29 14:45:27,811 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-09-29 14:45:27,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-29 14:45:27,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-09-29 14:45:27,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-09-29 14:45:27,838 INFO L87 Difference]: Start difference. First operand currently 70 states, but on-demand construction may add more states 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 14:45:27,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-29 14:45:27,898 INFO L93 Difference]: Finished difference Result 53 states and 93 transitions. [2022-09-29 14:45:27,899 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 53 states and 93 transitions. [2022-09-29 14:45:27,908 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-09-29 14:45:27,909 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 53 states to 0 states and 0 transitions. [2022-09-29 14:45:27,910 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-09-29 14:45:27,910 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-09-29 14:45:27,911 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-09-29 14:45:27,911 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-29 14:45:27,911 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-09-29 14:45:27,911 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-09-29 14:45:27,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-29 14:45:27,920 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-09-29 14:45:27,921 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-09-29 14:45:27,921 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-09-29 14:45:27,921 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-09-29 14:45:27,921 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-09-29 14:45:27,924 INFO L202 PluginConnector]: Adding new model single_assertion_test.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.09 02:45:27 BoogieIcfgContainer [2022-09-29 14:45:27,924 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-09-29 14:45:27,925 INFO L158 Benchmark]: Toolchain (without parser) took 1065.47ms. Allocated memory was 211.8MB in the beginning and 264.2MB in the end (delta: 52.4MB). Free memory was 170.2MB in the beginning and 234.0MB in the end (delta: -63.8MB). There was no memory consumed. Max. memory is 8.0GB. [2022-09-29 14:45:27,925 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.14ms. Allocated memory is still 211.8MB. Free memory is still 171.2MB. There was no memory consumed. Max. memory is 8.0GB. [2022-09-29 14:45:27,925 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.85ms. Allocated memory is still 211.8MB. Free memory was 170.1MB in the beginning and 168.7MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-09-29 14:45:27,926 INFO L158 Benchmark]: Boogie Preprocessor took 10.44ms. Allocated memory is still 211.8MB. Free memory was 168.5MB in the beginning and 167.7MB in the end (delta: 790.6kB). There was no memory consumed. Max. memory is 8.0GB. [2022-09-29 14:45:27,926 INFO L158 Benchmark]: RCFGBuilder took 159.22ms. Allocated memory is still 211.8MB. Free memory was 167.6MB in the beginning and 159.5MB in the end (delta: 8.1MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2022-09-29 14:45:27,926 INFO L158 Benchmark]: BuchiAutomizer took 843.68ms. Allocated memory was 211.8MB in the beginning and 264.2MB in the end (delta: 52.4MB). Free memory was 159.4MB in the beginning and 234.0MB in the end (delta: -74.6MB). There was no memory consumed. Max. memory is 8.0GB. [2022-09-29 14:45:27,928 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 0.14ms. Allocated memory is still 211.8MB. Free memory is still 171.2MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 41.85ms. Allocated memory is still 211.8MB. Free memory was 170.1MB in the beginning and 168.7MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 10.44ms. Allocated memory is still 211.8MB. Free memory was 168.5MB in the beginning and 167.7MB in the end (delta: 790.6kB). There was no memory consumed. Max. memory is 8.0GB. * RCFGBuilder took 159.22ms. Allocated memory is still 211.8MB. Free memory was 167.6MB in the beginning and 159.5MB in the end (delta: 8.1MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * BuchiAutomizer took 843.68ms. Allocated memory was 211.8MB in the beginning and 264.2MB in the end (delta: 52.4MB). Free memory was 159.4MB in the beginning and 234.0MB in the end (delta: -74.6MB). 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:3. Analysis of lassos took 0.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 1. 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: 0.2s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 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: 16, positive: 16, positive conditional: 0, positive unconditional: 16, 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 14:45:27,961 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...