/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf -i ../../../trunk/examples/concurrent/bpl/mcr/example_10.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d9e330d [2020-02-10 23:14:14,927 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-02-10 23:14:14,931 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-02-10 23:14:14,943 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-02-10 23:14:14,943 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-02-10 23:14:14,944 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-02-10 23:14:14,949 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-02-10 23:14:14,951 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-02-10 23:14:14,952 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-02-10 23:14:14,953 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-02-10 23:14:14,954 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-02-10 23:14:14,955 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-02-10 23:14:14,956 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-02-10 23:14:14,957 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-02-10 23:14:14,958 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-02-10 23:14:14,959 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-02-10 23:14:14,960 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-02-10 23:14:14,960 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-02-10 23:14:14,962 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-02-10 23:14:14,964 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-02-10 23:14:14,966 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-02-10 23:14:14,967 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-02-10 23:14:14,968 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-02-10 23:14:14,969 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-02-10 23:14:14,971 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-02-10 23:14:14,979 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-02-10 23:14:14,979 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-02-10 23:14:14,980 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-02-10 23:14:14,981 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf [2020-02-10 23:14:15,001 INFO L113 SettingsManager]: Loading preferences was successful [2020-02-10 23:14:15,001 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-02-10 23:14:15,002 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-02-10 23:14:15,003 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-02-10 23:14:15,003 INFO L138 SettingsManager]: * Use SBE=true [2020-02-10 23:14:15,003 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-02-10 23:14:15,003 INFO L138 SettingsManager]: * sizeof long=4 [2020-02-10 23:14:15,003 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-02-10 23:14:15,004 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-02-10 23:14:15,004 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-02-10 23:14:15,004 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-02-10 23:14:15,004 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-02-10 23:14:15,004 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-02-10 23:14:15,004 INFO L138 SettingsManager]: * sizeof long double=12 [2020-02-10 23:14:15,005 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-02-10 23:14:15,005 INFO L138 SettingsManager]: * Use constant arrays=true [2020-02-10 23:14:15,005 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-02-10 23:14:15,005 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-02-10 23:14:15,005 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-02-10 23:14:15,006 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-02-10 23:14:15,006 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-02-10 23:14:15,006 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-02-10 23:14:15,006 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-02-10 23:14:15,006 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-02-10 23:14:15,007 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-02-10 23:14:15,007 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-02-10 23:14:15,007 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-02-10 23:14:15,007 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-02-10 23:14:15,007 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2020-02-10 23:14:15,008 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-02-10 23:14:15,282 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-02-10 23:14:15,302 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-02-10 23:14:15,305 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-02-10 23:14:15,307 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2020-02-10 23:14:15,307 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2020-02-10 23:14:15,308 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/mcr/example_10.bpl [2020-02-10 23:14:15,309 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/mcr/example_10.bpl' [2020-02-10 23:14:15,353 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-02-10 23:14:15,356 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-02-10 23:14:15,356 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-02-10 23:14:15,357 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-02-10 23:14:15,357 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-02-10 23:14:15,375 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "example_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 11:14:15" (1/1) ... [2020-02-10 23:14:15,385 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "example_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 11:14:15" (1/1) ... [2020-02-10 23:14:15,395 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-02-10 23:14:15,396 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-02-10 23:14:15,396 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-02-10 23:14:15,396 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-02-10 23:14:15,408 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "example_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 11:14:15" (1/1) ... [2020-02-10 23:14:15,408 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "example_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 11:14:15" (1/1) ... [2020-02-10 23:14:15,409 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "example_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 11:14:15" (1/1) ... [2020-02-10 23:14:15,410 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "example_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 11:14:15" (1/1) ... [2020-02-10 23:14:15,417 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "example_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 11:14:15" (1/1) ... [2020-02-10 23:14:15,420 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "example_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 11:14:15" (1/1) ... [2020-02-10 23:14:15,421 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "example_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 11:14:15" (1/1) ... [2020-02-10 23:14:15,423 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-02-10 23:14:15,424 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-02-10 23:14:15,424 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-02-10 23:14:15,424 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-02-10 23:14:15,426 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "example_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 11:14:15" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-02-10 23:14:15,510 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_1 given in one single declaration [2020-02-10 23:14:15,510 INFO L130 BoogieDeclarations]: Found specification of procedure set_1 [2020-02-10 23:14:15,511 INFO L138 BoogieDeclarations]: Found implementation of procedure set_1 [2020-02-10 23:14:15,512 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_2 given in one single declaration [2020-02-10 23:14:15,513 INFO L130 BoogieDeclarations]: Found specification of procedure set_2 [2020-02-10 23:14:15,513 INFO L138 BoogieDeclarations]: Found implementation of procedure set_2 [2020-02-10 23:14:15,513 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_3 given in one single declaration [2020-02-10 23:14:15,513 INFO L130 BoogieDeclarations]: Found specification of procedure set_3 [2020-02-10 23:14:15,513 INFO L138 BoogieDeclarations]: Found implementation of procedure set_3 [2020-02-10 23:14:15,514 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_4 given in one single declaration [2020-02-10 23:14:15,514 INFO L130 BoogieDeclarations]: Found specification of procedure set_4 [2020-02-10 23:14:15,514 INFO L138 BoogieDeclarations]: Found implementation of procedure set_4 [2020-02-10 23:14:15,514 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_0 given in one single declaration [2020-02-10 23:14:15,514 INFO L130 BoogieDeclarations]: Found specification of procedure set_0 [2020-02-10 23:14:15,515 INFO L138 BoogieDeclarations]: Found implementation of procedure set_0 [2020-02-10 23:14:15,515 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_9 given in one single declaration [2020-02-10 23:14:15,515 INFO L130 BoogieDeclarations]: Found specification of procedure set_9 [2020-02-10 23:14:15,515 INFO L138 BoogieDeclarations]: Found implementation of procedure set_9 [2020-02-10 23:14:15,515 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2020-02-10 23:14:15,516 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-02-10 23:14:15,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-02-10 23:14:15,516 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_5 given in one single declaration [2020-02-10 23:14:15,516 INFO L130 BoogieDeclarations]: Found specification of procedure set_5 [2020-02-10 23:14:15,517 INFO L138 BoogieDeclarations]: Found implementation of procedure set_5 [2020-02-10 23:14:15,524 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_6 given in one single declaration [2020-02-10 23:14:15,525 INFO L130 BoogieDeclarations]: Found specification of procedure set_6 [2020-02-10 23:14:15,525 INFO L138 BoogieDeclarations]: Found implementation of procedure set_6 [2020-02-10 23:14:15,527 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_7 given in one single declaration [2020-02-10 23:14:15,528 INFO L130 BoogieDeclarations]: Found specification of procedure set_7 [2020-02-10 23:14:15,528 INFO L138 BoogieDeclarations]: Found implementation of procedure set_7 [2020-02-10 23:14:15,528 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_8 given in one single declaration [2020-02-10 23:14:15,528 INFO L130 BoogieDeclarations]: Found specification of procedure set_8 [2020-02-10 23:14:15,528 INFO L138 BoogieDeclarations]: Found implementation of procedure set_8 [2020-02-10 23:14:15,529 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-02-10 23:14:15,787 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-02-10 23:14:15,788 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-02-10 23:14:15,793 INFO L202 PluginConnector]: Adding new model example_10.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.02 11:14:15 BoogieIcfgContainer [2020-02-10 23:14:15,793 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-02-10 23:14:15,802 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-02-10 23:14:15,802 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-02-10 23:14:15,812 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-02-10 23:14:15,813 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 11:14:15" (1/2) ... [2020-02-10 23:14:15,814 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@241c0c4b and model type example_10.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.02 11:14:15, skipping insertion in model container [2020-02-10 23:14:15,814 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example_10.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.02 11:14:15" (2/2) ... [2020-02-10 23:14:15,824 INFO L109 eAbstractionObserver]: Analyzing ICFG example_10.bpl [2020-02-10 23:14:15,847 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-02-10 23:14:15,861 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-02-10 23:14:15,866 INFO L339 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-02-10 23:14:16,141 INFO L251 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2020-02-10 23:14:16,161 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-02-10 23:14:16,161 INFO L376 AbstractCegarLoop]: Hoare is false [2020-02-10 23:14:16,161 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-02-10 23:14:16,161 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-02-10 23:14:16,161 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-02-10 23:14:16,161 INFO L380 AbstractCegarLoop]: Difference is false [2020-02-10 23:14:16,161 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-02-10 23:14:16,162 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-02-10 23:14:16,178 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 84 places, 143 transitions [2020-02-10 23:14:19,081 INFO L129 PetriNetUnfolder]: 4097/5153 cut-off events. [2020-02-10 23:14:19,081 INFO L130 PetriNetUnfolder]: For 5120/5120 co-relation queries the response was YES. [2020-02-10 23:14:19,152 INFO L76 FinitePrefix]: Finished finitePrefix Result has 10304 conditions, 5153 events. 4097/5153 cut-off events. For 5120/5120 co-relation queries the response was YES. Maximal size of possible extension queue 274. Compared 20915 event pairs. 0/5152 useless extension candidates. Maximal degree in co-relation 4655. Up to 1260 conditions per place. [2020-02-10 23:14:19,152 INFO L82 GeneralOperation]: Start removeDead. Operand has 84 places, 143 transitions [2020-02-10 23:14:19,251 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 72 places, 131 transitions [2020-02-10 23:14:19,255 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 72 places, 131 transitions [2020-02-10 23:14:19,256 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 72 places, 131 transitions [2020-02-10 23:14:21,927 INFO L129 PetriNetUnfolder]: 4097/5151 cut-off events. [2020-02-10 23:14:21,927 INFO L130 PetriNetUnfolder]: For 5120/5120 co-relation queries the response was YES. [2020-02-10 23:14:21,968 INFO L76 FinitePrefix]: Finished finitePrefix Result has 10302 conditions, 5151 events. 4097/5151 cut-off events. For 5120/5120 co-relation queries the response was YES. Maximal size of possible extension queue 274. Compared 20106 event pairs. 0/5151 useless extension candidates. Maximal degree in co-relation 4655. Up to 1260 conditions per place. [2020-02-10 23:14:22,089 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 72 places, 131 transitions [2020-02-10 23:14:24,276 INFO L129 PetriNetUnfolder]: 4097/5151 cut-off events. [2020-02-10 23:14:24,277 INFO L130 PetriNetUnfolder]: For 5120/5120 co-relation queries the response was YES. [2020-02-10 23:14:24,316 INFO L76 FinitePrefix]: Finished finitePrefix Result has 10302 conditions, 5151 events. 4097/5151 cut-off events. For 5120/5120 co-relation queries the response was YES. Maximal size of possible extension queue 274. Compared 20106 event pairs. 0/5151 useless extension candidates. Maximal degree in co-relation 4655. Up to 1260 conditions per place. [2020-02-10 23:14:24,408 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 3780 [2020-02-10 23:14:24,409 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-02-10 23:14:24,587 INFO L206 etLargeBlockEncoding]: Checked pairs total: 1035 [2020-02-10 23:14:24,588 INFO L214 etLargeBlockEncoding]: Total number of compositions: 10 [2020-02-10 23:14:24,588 INFO L160 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 5337 [2020-02-10 23:14:26,599 INFO L129 PetriNetUnfolder]: 4097/5140 cut-off events. [2020-02-10 23:14:26,600 INFO L130 PetriNetUnfolder]: For 5120/5120 co-relation queries the response was YES. [2020-02-10 23:14:26,600 INFO L219 CegarLoopForPetriNet]: Found error trace [2020-02-10 23:14:26,601 INFO L227 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-02-10 23:14:26,601 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2020-02-10 23:14:26,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-02-10 23:14:26,608 INFO L82 PathProgramCache]: Analyzing trace with hash 1775727540, now seen corresponding path program 1 times [2020-02-10 23:14:26,617 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-02-10 23:14:26,618 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393806226] [2020-02-10 23:14:26,618 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-02-10 23:14:26,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-02-10 23:14:26,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-02-10 23:14:26,772 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393806226] [2020-02-10 23:14:26,773 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-02-10 23:14:26,773 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-02-10 23:14:26,774 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085190570] [2020-02-10 23:14:26,783 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-02-10 23:14:26,784 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-02-10 23:14:26,798 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-02-10 23:14:26,800 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-02-10 23:14:26,802 INFO L413 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 153 [2020-02-10 23:14:26,805 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 121 transitions. Second operand 3 states. [2020-02-10 23:14:26,805 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-02-10 23:14:26,805 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 153 [2020-02-10 23:14:26,807 INFO L68 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-02-10 23:14:29,098 INFO L129 PetriNetUnfolder]: 3764/4762 cut-off events. [2020-02-10 23:14:29,098 INFO L130 PetriNetUnfolder]: For 5812/5812 co-relation queries the response was YES. [2020-02-10 23:14:29,128 INFO L76 FinitePrefix]: Finished finitePrefix Result has 10002 conditions, 4762 events. 3764/4762 cut-off events. For 5812/5812 co-relation queries the response was YES. Maximal size of possible extension queue 274. Compared 21863 event pairs. 46/4808 useless extension candidates. Maximal degree in co-relation 4719. Up to 1260 conditions per place. [2020-02-10 23:14:29,194 INFO L145 encePairwiseOnDemand]: 149/153 looper letters, 7 selfloop transitions, 1 changer transitions 0/118 dead transitions. [2020-02-10 23:14:29,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-02-10 23:14:29,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-02-10 23:14:29,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 437 transitions. [2020-02-10 23:14:29,212 INFO L464 CegarLoopForPetriNet]: DFA transition density 0.9520697167755992 [2020-02-10 23:14:29,213 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 437 transitions. [2020-02-10 23:14:29,213 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 437 transitions. [2020-02-10 23:14:29,216 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-02-10 23:14:29,219 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 437 transitions. [2020-02-10 23:14:29,222 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-02-10 23:14:29,230 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 4 states. [2020-02-10 23:14:29,230 INFO L81 ComplementDD]: Finished complementDD. Result 4 states. [2020-02-10 23:14:29,233 INFO L178 Difference]: Start difference. First operand has 62 places, 121 transitions. Second operand 3 states and 437 transitions. [2020-02-10 23:14:29,235 INFO L206 Difference]: Finished difference. Result has 64 places, 118 transitions [2020-02-10 23:14:29,237 INFO L292 CegarLoopForPetriNet]: {PETRI_ALPHABET=153, PETRI_DIFFERENCE_MINUEND_FLOW=572, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=120, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=559, PETRI_PLACES=64, PETRI_TRANSITIONS=118} [2020-02-10 23:14:29,238 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 64 places, 118 transitions [2020-02-10 23:14:30,871 INFO L129 PetriNetUnfolder]: 3764/4762 cut-off events. [2020-02-10 23:14:30,872 INFO L130 PetriNetUnfolder]: For 4742/4742 co-relation queries the response was YES. [2020-02-10 23:14:30,895 INFO L76 FinitePrefix]: Finished finitePrefix Result has 9536 conditions, 4762 events. 3764/4762 cut-off events. For 4742/4742 co-relation queries the response was YES. Maximal size of possible extension queue 276. Compared 19114 event pairs. 0/4762 useless extension candidates. Maximal degree in co-relation 9511. Up to 1260 conditions per place. [2020-02-10 23:14:30,895 INFO L82 GeneralOperation]: Start removeDead. Operand has 64 places, 118 transitions [2020-02-10 23:14:30,954 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 64 places, 118 transitions [2020-02-10 23:14:30,955 INFO L479 AbstractCegarLoop]: Abstraction has has 64 places, 118 transitions [2020-02-10 23:14:30,955 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-02-10 23:14:32,575 INFO L129 PetriNetUnfolder]: 3764/4761 cut-off events. [2020-02-10 23:14:32,575 INFO L130 PetriNetUnfolder]: For 4742/4742 co-relation queries the response was YES. [2020-02-10 23:14:32,575 INFO L219 CegarLoopForPetriNet]: Found error trace [2020-02-10 23:14:32,575 INFO L227 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-02-10 23:14:32,576 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2020-02-10 23:14:32,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-02-10 23:14:32,576 INFO L82 PathProgramCache]: Analyzing trace with hash -1528521544, now seen corresponding path program 1 times [2020-02-10 23:14:32,576 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-02-10 23:14:32,577 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983263293] [2020-02-10 23:14:32,577 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-02-10 23:14:32,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-02-10 23:14:32,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-02-10 23:14:32,626 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983263293] [2020-02-10 23:14:32,626 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-02-10 23:14:32,626 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-02-10 23:14:32,627 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692546269] [2020-02-10 23:14:32,631 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-02-10 23:14:32,631 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-02-10 23:14:32,631 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-02-10 23:14:32,632 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-02-10 23:14:32,632 INFO L413 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 153 [2020-02-10 23:14:32,633 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 118 transitions. Second operand 3 states. [2020-02-10 23:14:32,633 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-02-10 23:14:32,633 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 153 [2020-02-10 23:14:32,633 INFO L68 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-02-10 23:14:33,576 INFO L129 PetriNetUnfolder]: 2398/3149 cut-off events. [2020-02-10 23:14:33,576 INFO L130 PetriNetUnfolder]: For 4299/4299 co-relation queries the response was YES. [2020-02-10 23:14:33,601 INFO L76 FinitePrefix]: Finished finitePrefix Result has 6568 conditions, 3149 events. 2398/3149 cut-off events. For 4299/4299 co-relation queries the response was YES. Maximal size of possible extension queue 218. Compared 14728 event pairs. 219/3368 useless extension candidates. Maximal degree in co-relation 6542. Up to 840 conditions per place. [2020-02-10 23:14:33,654 INFO L145 encePairwiseOnDemand]: 147/153 looper letters, 5 selfloop transitions, 1 changer transitions 0/113 dead transitions. [2020-02-10 23:14:33,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-02-10 23:14:33,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-02-10 23:14:33,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 437 transitions. [2020-02-10 23:14:33,658 INFO L464 CegarLoopForPetriNet]: DFA transition density 0.9520697167755992 [2020-02-10 23:14:33,658 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 437 transitions. [2020-02-10 23:14:33,658 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 437 transitions. [2020-02-10 23:14:33,659 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-02-10 23:14:33,659 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 437 transitions. [2020-02-10 23:14:33,660 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-02-10 23:14:33,662 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 4 states. [2020-02-10 23:14:33,662 INFO L81 ComplementDD]: Finished complementDD. Result 4 states. [2020-02-10 23:14:33,663 INFO L178 Difference]: Start difference. First operand has 64 places, 118 transitions. Second operand 3 states and 437 transitions. [2020-02-10 23:14:33,664 INFO L206 Difference]: Finished difference. Result has 66 places, 113 transitions [2020-02-10 23:14:33,664 INFO L292 CegarLoopForPetriNet]: {PETRI_ALPHABET=153, PETRI_DIFFERENCE_MINUEND_FLOW=559, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=118, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=536, PETRI_PLACES=66, PETRI_TRANSITIONS=113} [2020-02-10 23:14:33,665 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 66 places, 113 transitions [2020-02-10 23:14:34,508 INFO L129 PetriNetUnfolder]: 2398/3149 cut-off events. [2020-02-10 23:14:34,508 INFO L130 PetriNetUnfolder]: For 3130/3130 co-relation queries the response was YES. [2020-02-10 23:14:34,523 INFO L76 FinitePrefix]: Finished finitePrefix Result has 6312 conditions, 3149 events. 2398/3149 cut-off events. For 3130/3130 co-relation queries the response was YES. Maximal size of possible extension queue 220. Compared 12963 event pairs. 0/3149 useless extension candidates. Maximal degree in co-relation 6286. Up to 840 conditions per place. [2020-02-10 23:14:34,524 INFO L82 GeneralOperation]: Start removeDead. Operand has 66 places, 113 transitions [2020-02-10 23:14:34,549 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 66 places, 113 transitions [2020-02-10 23:14:34,549 INFO L479 AbstractCegarLoop]: Abstraction has has 66 places, 113 transitions [2020-02-10 23:14:34,549 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-02-10 23:14:35,289 INFO L129 PetriNetUnfolder]: 2398/3148 cut-off events. [2020-02-10 23:14:35,289 INFO L130 PetriNetUnfolder]: For 3130/3130 co-relation queries the response was YES. [2020-02-10 23:14:35,289 INFO L219 CegarLoopForPetriNet]: Found error trace [2020-02-10 23:14:35,289 INFO L227 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-02-10 23:14:35,290 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2020-02-10 23:14:35,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-02-10 23:14:35,290 INFO L82 PathProgramCache]: Analyzing trace with hash -212622548, now seen corresponding path program 1 times [2020-02-10 23:14:35,290 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-02-10 23:14:35,290 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398224641] [2020-02-10 23:14:35,291 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-02-10 23:14:35,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-02-10 23:14:35,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-02-10 23:14:35,326 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398224641] [2020-02-10 23:14:35,326 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-02-10 23:14:35,327 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-02-10 23:14:35,328 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276864381] [2020-02-10 23:14:35,328 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-02-10 23:14:35,328 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-02-10 23:14:35,329 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-02-10 23:14:35,330 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-02-10 23:14:35,330 INFO L413 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 153 [2020-02-10 23:14:35,331 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 113 transitions. Second operand 3 states. [2020-02-10 23:14:35,331 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-02-10 23:14:35,331 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 153 [2020-02-10 23:14:35,331 INFO L68 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-02-10 23:14:35,644 INFO L129 PetriNetUnfolder]: 928/1314 cut-off events. [2020-02-10 23:14:35,644 INFO L130 PetriNetUnfolder]: For 2210/2210 co-relation queries the response was YES. [2020-02-10 23:14:35,656 INFO L76 FinitePrefix]: Finished finitePrefix Result has 2690 conditions, 1314 events. 928/1314 cut-off events. For 2210/2210 co-relation queries the response was YES. Maximal size of possible extension queue 87. Compared 5759 event pairs. 274/1588 useless extension candidates. Maximal degree in co-relation 2663. Up to 280 conditions per place. [2020-02-10 23:14:35,684 INFO L145 encePairwiseOnDemand]: 145/153 looper letters, 3 selfloop transitions, 1 changer transitions 0/106 dead transitions. [2020-02-10 23:14:35,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-02-10 23:14:35,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-02-10 23:14:35,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 437 transitions. [2020-02-10 23:14:35,687 INFO L464 CegarLoopForPetriNet]: DFA transition density 0.9520697167755992 [2020-02-10 23:14:35,688 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 437 transitions. [2020-02-10 23:14:35,688 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 437 transitions. [2020-02-10 23:14:35,689 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-02-10 23:14:35,689 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 437 transitions. [2020-02-10 23:14:35,690 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-02-10 23:14:35,692 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 4 states. [2020-02-10 23:14:35,692 INFO L81 ComplementDD]: Finished complementDD. Result 4 states. [2020-02-10 23:14:35,692 INFO L178 Difference]: Start difference. First operand has 66 places, 113 transitions. Second operand 3 states and 437 transitions. [2020-02-10 23:14:35,693 INFO L206 Difference]: Finished difference. Result has 68 places, 106 transitions [2020-02-10 23:14:35,694 INFO L292 CegarLoopForPetriNet]: {PETRI_ALPHABET=153, PETRI_DIFFERENCE_MINUEND_FLOW=536, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=503, PETRI_PLACES=68, PETRI_TRANSITIONS=106} [2020-02-10 23:14:35,694 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 68 places, 106 transitions [2020-02-10 23:14:35,962 INFO L129 PetriNetUnfolder]: 928/1314 cut-off events. [2020-02-10 23:14:35,962 INFO L130 PetriNetUnfolder]: For 1296/1296 co-relation queries the response was YES. [2020-02-10 23:14:35,972 INFO L76 FinitePrefix]: Finished finitePrefix Result has 2644 conditions, 1314 events. 928/1314 cut-off events. For 1296/1296 co-relation queries the response was YES. Maximal size of possible extension queue 88. Compared 5208 event pairs. 0/1314 useless extension candidates. Maximal degree in co-relation 2617. Up to 280 conditions per place. [2020-02-10 23:14:35,973 INFO L82 GeneralOperation]: Start removeDead. Operand has 68 places, 106 transitions [2020-02-10 23:14:35,993 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 68 places, 106 transitions [2020-02-10 23:14:35,993 INFO L479 AbstractCegarLoop]: Abstraction has has 68 places, 106 transitions [2020-02-10 23:14:35,994 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-02-10 23:14:36,197 INFO L129 PetriNetUnfolder]: 928/1313 cut-off events. [2020-02-10 23:14:36,197 INFO L130 PetriNetUnfolder]: For 1296/1296 co-relation queries the response was YES. [2020-02-10 23:14:36,197 INFO L219 CegarLoopForPetriNet]: Found error trace [2020-02-10 23:14:36,197 INFO L227 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-02-10 23:14:36,197 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2020-02-10 23:14:36,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-02-10 23:14:36,198 INFO L82 PathProgramCache]: Analyzing trace with hash -25780770, now seen corresponding path program 1 times [2020-02-10 23:14:36,198 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-02-10 23:14:36,198 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667581698] [2020-02-10 23:14:36,199 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-02-10 23:14:36,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-02-10 23:14:36,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-02-10 23:14:36,233 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1667581698] [2020-02-10 23:14:36,233 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-02-10 23:14:36,233 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-02-10 23:14:36,233 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404216862] [2020-02-10 23:14:36,234 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-02-10 23:14:36,234 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-02-10 23:14:36,234 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-02-10 23:14:36,235 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-02-10 23:14:36,235 INFO L413 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 153 [2020-02-10 23:14:36,236 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 106 transitions. Second operand 3 states. [2020-02-10 23:14:36,236 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-02-10 23:14:36,236 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 153 [2020-02-10 23:14:36,236 INFO L68 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-02-10 23:14:36,329 INFO L129 PetriNetUnfolder]: 419/657 cut-off events. [2020-02-10 23:14:36,329 INFO L130 PetriNetUnfolder]: For 1026/1026 co-relation queries the response was YES. [2020-02-10 23:14:36,333 INFO L76 FinitePrefix]: Finished finitePrefix Result has 1378 conditions, 657 events. 419/657 cut-off events. For 1026/1026 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 2695 event pairs. 98/755 useless extension candidates. Maximal degree in co-relation 1350. Up to 108 conditions per place. [2020-02-10 23:14:36,343 INFO L145 encePairwiseOnDemand]: 146/153 looper letters, 4 selfloop transitions, 1 changer transitions 0/100 dead transitions. [2020-02-10 23:14:36,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-02-10 23:14:36,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-02-10 23:14:36,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 437 transitions. [2020-02-10 23:14:36,346 INFO L464 CegarLoopForPetriNet]: DFA transition density 0.9520697167755992 [2020-02-10 23:14:36,346 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 437 transitions. [2020-02-10 23:14:36,346 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 437 transitions. [2020-02-10 23:14:36,346 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-02-10 23:14:36,347 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 437 transitions. [2020-02-10 23:14:36,348 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-02-10 23:14:36,349 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 4 states. [2020-02-10 23:14:36,349 INFO L81 ComplementDD]: Finished complementDD. Result 4 states. [2020-02-10 23:14:36,349 INFO L178 Difference]: Start difference. First operand has 68 places, 106 transitions. Second operand 3 states and 437 transitions. [2020-02-10 23:14:36,350 INFO L206 Difference]: Finished difference. Result has 70 places, 100 transitions [2020-02-10 23:14:36,350 INFO L292 CegarLoopForPetriNet]: {PETRI_ALPHABET=153, PETRI_DIFFERENCE_MINUEND_FLOW=503, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=475, PETRI_PLACES=70, PETRI_TRANSITIONS=100} [2020-02-10 23:14:36,351 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 70 places, 100 transitions [2020-02-10 23:14:36,429 INFO L129 PetriNetUnfolder]: 419/657 cut-off events. [2020-02-10 23:14:36,429 INFO L130 PetriNetUnfolder]: For 640/640 co-relation queries the response was YES. [2020-02-10 23:14:36,434 INFO L76 FinitePrefix]: Finished finitePrefix Result has 1332 conditions, 657 events. 419/657 cut-off events. For 640/640 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 2517 event pairs. 0/657 useless extension candidates. Maximal degree in co-relation 1304. Up to 108 conditions per place. [2020-02-10 23:14:36,434 INFO L82 GeneralOperation]: Start removeDead. Operand has 70 places, 100 transitions [2020-02-10 23:14:36,443 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 70 places, 100 transitions [2020-02-10 23:14:36,444 INFO L479 AbstractCegarLoop]: Abstraction has has 70 places, 100 transitions [2020-02-10 23:14:36,444 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-02-10 23:14:36,518 INFO L129 PetriNetUnfolder]: 419/656 cut-off events. [2020-02-10 23:14:36,518 INFO L130 PetriNetUnfolder]: For 640/640 co-relation queries the response was YES. [2020-02-10 23:14:36,518 INFO L219 CegarLoopForPetriNet]: Found error trace [2020-02-10 23:14:36,518 INFO L227 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-02-10 23:14:36,519 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2020-02-10 23:14:36,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-02-10 23:14:36,519 INFO L82 PathProgramCache]: Analyzing trace with hash -1946604532, now seen corresponding path program 1 times [2020-02-10 23:14:36,519 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-02-10 23:14:36,520 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848373200] [2020-02-10 23:14:36,520 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-02-10 23:14:36,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-02-10 23:14:36,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-02-10 23:14:36,557 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848373200] [2020-02-10 23:14:36,557 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-02-10 23:14:36,558 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-02-10 23:14:36,560 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529647710] [2020-02-10 23:14:36,561 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-02-10 23:14:36,561 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-02-10 23:14:36,561 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-02-10 23:14:36,561 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-02-10 23:14:36,562 INFO L413 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 153 [2020-02-10 23:14:36,562 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 100 transitions. Second operand 3 states. [2020-02-10 23:14:36,562 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-02-10 23:14:36,562 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 153 [2020-02-10 23:14:36,564 INFO L68 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-02-10 23:14:36,673 INFO L129 PetriNetUnfolder]: 414/651 cut-off events. [2020-02-10 23:14:36,673 INFO L130 PetriNetUnfolder]: For 780/780 co-relation queries the response was YES. [2020-02-10 23:14:36,678 INFO L76 FinitePrefix]: Finished finitePrefix Result has 1393 conditions, 651 events. 414/651 cut-off events. For 780/780 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 2677 event pairs. 1/652 useless extension candidates. Maximal degree in co-relation 1363. Up to 108 conditions per place. [2020-02-10 23:14:36,688 INFO L145 encePairwiseOnDemand]: 151/153 looper letters, 9 selfloop transitions, 1 changer transitions 0/99 dead transitions. [2020-02-10 23:14:36,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-02-10 23:14:36,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-02-10 23:14:36,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 437 transitions. [2020-02-10 23:14:36,690 INFO L464 CegarLoopForPetriNet]: DFA transition density 0.9520697167755992 [2020-02-10 23:14:36,690 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 437 transitions. [2020-02-10 23:14:36,691 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 437 transitions. [2020-02-10 23:14:36,691 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-02-10 23:14:36,691 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 437 transitions. [2020-02-10 23:14:36,692 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-02-10 23:14:36,693 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 4 states. [2020-02-10 23:14:36,693 INFO L81 ComplementDD]: Finished complementDD. Result 4 states. [2020-02-10 23:14:36,693 INFO L178 Difference]: Start difference. First operand has 70 places, 100 transitions. Second operand 3 states and 437 transitions. [2020-02-10 23:14:36,694 INFO L206 Difference]: Finished difference. Result has 72 places, 99 transitions [2020-02-10 23:14:36,695 INFO L292 CegarLoopForPetriNet]: {PETRI_ALPHABET=153, PETRI_DIFFERENCE_MINUEND_FLOW=475, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=472, PETRI_PLACES=72, PETRI_TRANSITIONS=99} [2020-02-10 23:14:36,695 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 72 places, 99 transitions [2020-02-10 23:14:36,746 INFO L129 PetriNetUnfolder]: 414/651 cut-off events. [2020-02-10 23:14:36,746 INFO L130 PetriNetUnfolder]: For 635/635 co-relation queries the response was YES. [2020-02-10 23:14:36,749 INFO L76 FinitePrefix]: Finished finitePrefix Result has 1322 conditions, 651 events. 414/651 cut-off events. For 635/635 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 2483 event pairs. 0/651 useless extension candidates. Maximal degree in co-relation 1299. Up to 108 conditions per place. [2020-02-10 23:14:36,749 INFO L82 GeneralOperation]: Start removeDead. Operand has 72 places, 99 transitions [2020-02-10 23:14:36,756 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 72 places, 99 transitions [2020-02-10 23:14:36,756 INFO L479 AbstractCegarLoop]: Abstraction has has 72 places, 99 transitions [2020-02-10 23:14:36,756 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-02-10 23:14:36,807 INFO L129 PetriNetUnfolder]: 414/650 cut-off events. [2020-02-10 23:14:36,807 INFO L130 PetriNetUnfolder]: For 635/635 co-relation queries the response was YES. [2020-02-10 23:14:36,807 INFO L219 CegarLoopForPetriNet]: Found error trace [2020-02-10 23:14:36,808 INFO L227 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-02-10 23:14:36,808 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2020-02-10 23:14:36,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-02-10 23:14:36,808 INFO L82 PathProgramCache]: Analyzing trace with hash -1603046746, now seen corresponding path program 1 times [2020-02-10 23:14:36,809 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-02-10 23:14:36,809 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166313720] [2020-02-10 23:14:36,809 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-02-10 23:14:36,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-02-10 23:14:36,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-02-10 23:14:36,840 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1166313720] [2020-02-10 23:14:36,840 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-02-10 23:14:36,840 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-02-10 23:14:36,841 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605790808] [2020-02-10 23:14:36,841 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-02-10 23:14:36,841 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-02-10 23:14:36,841 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-02-10 23:14:36,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-02-10 23:14:36,842 INFO L413 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 153 [2020-02-10 23:14:36,843 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 99 transitions. Second operand 3 states. [2020-02-10 23:14:36,843 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-02-10 23:14:36,843 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 153 [2020-02-10 23:14:36,843 INFO L68 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-02-10 23:14:36,881 INFO L129 PetriNetUnfolder]: 100/201 cut-off events. [2020-02-10 23:14:36,882 INFO L130 PetriNetUnfolder]: For 389/389 co-relation queries the response was YES. [2020-02-10 23:14:36,884 INFO L76 FinitePrefix]: Finished finitePrefix Result has 434 conditions, 201 events. 100/201 cut-off events. For 389/389 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 658 event pairs. 61/262 useless extension candidates. Maximal degree in co-relation 410. Up to 30 conditions per place. [2020-02-10 23:14:36,888 INFO L145 encePairwiseOnDemand]: 144/153 looper letters, 2 selfloop transitions, 1 changer transitions 0/91 dead transitions. [2020-02-10 23:14:36,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-02-10 23:14:36,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-02-10 23:14:36,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 437 transitions. [2020-02-10 23:14:36,890 INFO L464 CegarLoopForPetriNet]: DFA transition density 0.9520697167755992 [2020-02-10 23:14:36,890 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 437 transitions. [2020-02-10 23:14:36,890 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 437 transitions. [2020-02-10 23:14:36,891 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-02-10 23:14:36,891 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 437 transitions. [2020-02-10 23:14:36,892 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-02-10 23:14:36,893 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 4 states. [2020-02-10 23:14:36,893 INFO L81 ComplementDD]: Finished complementDD. Result 4 states. [2020-02-10 23:14:36,893 INFO L178 Difference]: Start difference. First operand has 72 places, 99 transitions. Second operand 3 states and 437 transitions. [2020-02-10 23:14:36,894 INFO L206 Difference]: Finished difference. Result has 74 places, 91 transitions [2020-02-10 23:14:36,894 INFO L292 CegarLoopForPetriNet]: {PETRI_ALPHABET=153, PETRI_DIFFERENCE_MINUEND_FLOW=472, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=434, PETRI_PLACES=74, PETRI_TRANSITIONS=91} [2020-02-10 23:14:36,894 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 74 places, 91 transitions [2020-02-10 23:14:36,913 INFO L129 PetriNetUnfolder]: 100/201 cut-off events. [2020-02-10 23:14:36,913 INFO L130 PetriNetUnfolder]: For 186/186 co-relation queries the response was YES. [2020-02-10 23:14:36,915 INFO L76 FinitePrefix]: Finished finitePrefix Result has 424 conditions, 201 events. 100/201 cut-off events. For 186/186 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 607 event pairs. 0/201 useless extension candidates. Maximal degree in co-relation 400. Up to 30 conditions per place. [2020-02-10 23:14:36,915 INFO L82 GeneralOperation]: Start removeDead. Operand has 74 places, 91 transitions [2020-02-10 23:14:36,918 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 74 places, 91 transitions [2020-02-10 23:14:36,919 INFO L479 AbstractCegarLoop]: Abstraction has has 74 places, 91 transitions [2020-02-10 23:14:36,919 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-02-10 23:14:36,949 INFO L129 PetriNetUnfolder]: 100/200 cut-off events. [2020-02-10 23:14:36,949 INFO L130 PetriNetUnfolder]: For 186/186 co-relation queries the response was YES. [2020-02-10 23:14:36,949 INFO L219 CegarLoopForPetriNet]: Found error trace [2020-02-10 23:14:36,949 INFO L227 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-02-10 23:14:36,950 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2020-02-10 23:14:36,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-02-10 23:14:36,950 INFO L82 PathProgramCache]: Analyzing trace with hash -208966068, now seen corresponding path program 1 times [2020-02-10 23:14:36,950 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-02-10 23:14:36,950 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1041361219] [2020-02-10 23:14:36,951 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-02-10 23:14:36,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-02-10 23:14:37,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-02-10 23:14:37,004 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1041361219] [2020-02-10 23:14:37,004 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-02-10 23:14:37,004 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-02-10 23:14:37,005 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000030549] [2020-02-10 23:14:37,005 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-02-10 23:14:37,005 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-02-10 23:14:37,005 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-02-10 23:14:37,006 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-02-10 23:14:37,006 INFO L413 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 153 [2020-02-10 23:14:37,008 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 91 transitions. Second operand 3 states. [2020-02-10 23:14:37,008 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-02-10 23:14:37,008 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 153 [2020-02-10 23:14:37,008 INFO L68 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-02-10 23:14:37,041 INFO L129 PetriNetUnfolder]: 53/133 cut-off events. [2020-02-10 23:14:37,041 INFO L130 PetriNetUnfolder]: For 181/181 co-relation queries the response was YES. [2020-02-10 23:14:37,043 INFO L76 FinitePrefix]: Finished finitePrefix Result has 300 conditions, 133 events. 53/133 cut-off events. For 181/181 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 395 event pairs. 14/147 useless extension candidates. Maximal degree in co-relation 275. Up to 18 conditions per place. [2020-02-10 23:14:37,048 INFO L145 encePairwiseOnDemand]: 148/153 looper letters, 6 selfloop transitions, 1 changer transitions 0/87 dead transitions. [2020-02-10 23:14:37,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-02-10 23:14:37,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-02-10 23:14:37,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 437 transitions. [2020-02-10 23:14:37,051 INFO L464 CegarLoopForPetriNet]: DFA transition density 0.9520697167755992 [2020-02-10 23:14:37,051 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 437 transitions. [2020-02-10 23:14:37,051 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 437 transitions. [2020-02-10 23:14:37,051 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-02-10 23:14:37,052 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 437 transitions. [2020-02-10 23:14:37,053 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-02-10 23:14:37,054 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 4 states. [2020-02-10 23:14:37,055 INFO L81 ComplementDD]: Finished complementDD. Result 4 states. [2020-02-10 23:14:37,055 INFO L178 Difference]: Start difference. First operand has 74 places, 91 transitions. Second operand 3 states and 437 transitions. [2020-02-10 23:14:37,055 INFO L206 Difference]: Finished difference. Result has 76 places, 87 transitions [2020-02-10 23:14:37,056 INFO L292 CegarLoopForPetriNet]: {PETRI_ALPHABET=153, PETRI_DIFFERENCE_MINUEND_FLOW=434, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=416, PETRI_PLACES=76, PETRI_TRANSITIONS=87} [2020-02-10 23:14:37,056 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 76 places, 87 transitions [2020-02-10 23:14:37,067 INFO L129 PetriNetUnfolder]: 53/133 cut-off events. [2020-02-10 23:14:37,067 INFO L130 PetriNetUnfolder]: For 119/119 co-relation queries the response was YES. [2020-02-10 23:14:37,068 INFO L76 FinitePrefix]: Finished finitePrefix Result has 290 conditions, 133 events. 53/133 cut-off events. For 119/119 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 377 event pairs. 0/133 useless extension candidates. Maximal degree in co-relation 265. Up to 18 conditions per place. [2020-02-10 23:14:37,068 INFO L82 GeneralOperation]: Start removeDead. Operand has 76 places, 87 transitions [2020-02-10 23:14:37,070 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 76 places, 87 transitions [2020-02-10 23:14:37,070 INFO L479 AbstractCegarLoop]: Abstraction has has 76 places, 87 transitions [2020-02-10 23:14:37,070 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-02-10 23:14:37,078 INFO L129 PetriNetUnfolder]: 53/132 cut-off events. [2020-02-10 23:14:37,078 INFO L130 PetriNetUnfolder]: For 119/119 co-relation queries the response was YES. [2020-02-10 23:14:37,078 INFO L219 CegarLoopForPetriNet]: Found error trace [2020-02-10 23:14:37,079 INFO L227 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-02-10 23:14:37,079 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2020-02-10 23:14:37,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-02-10 23:14:37,079 INFO L82 PathProgramCache]: Analyzing trace with hash 523899338, now seen corresponding path program 1 times [2020-02-10 23:14:37,079 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-02-10 23:14:37,080 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892568028] [2020-02-10 23:14:37,080 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-02-10 23:14:37,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-02-10 23:14:37,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-02-10 23:14:37,103 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1892568028] [2020-02-10 23:14:37,103 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-02-10 23:14:37,103 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-02-10 23:14:37,103 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579076336] [2020-02-10 23:14:37,104 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-02-10 23:14:37,104 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-02-10 23:14:37,104 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-02-10 23:14:37,105 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-02-10 23:14:37,106 INFO L413 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 153 [2020-02-10 23:14:37,106 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 87 transitions. Second operand 3 states. [2020-02-10 23:14:37,106 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-02-10 23:14:37,107 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 153 [2020-02-10 23:14:37,107 INFO L68 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-02-10 23:14:37,139 INFO L129 PetriNetUnfolder]: 45/121 cut-off events. [2020-02-10 23:14:37,139 INFO L130 PetriNetUnfolder]: For 137/137 co-relation queries the response was YES. [2020-02-10 23:14:37,141 INFO L76 FinitePrefix]: Finished finitePrefix Result has 278 conditions, 121 events. 45/121 cut-off events. For 137/137 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 343 event pairs. 3/124 useless extension candidates. Maximal degree in co-relation 252. Up to 18 conditions per place. [2020-02-10 23:14:37,144 INFO L145 encePairwiseOnDemand]: 150/153 looper letters, 8 selfloop transitions, 1 changer transitions 0/85 dead transitions. [2020-02-10 23:14:37,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-02-10 23:14:37,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-02-10 23:14:37,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 437 transitions. [2020-02-10 23:14:37,146 INFO L464 CegarLoopForPetriNet]: DFA transition density 0.9520697167755992 [2020-02-10 23:14:37,146 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 437 transitions. [2020-02-10 23:14:37,146 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 437 transitions. [2020-02-10 23:14:37,147 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-02-10 23:14:37,147 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 437 transitions. [2020-02-10 23:14:37,148 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-02-10 23:14:37,149 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 4 states. [2020-02-10 23:14:37,149 INFO L81 ComplementDD]: Finished complementDD. Result 4 states. [2020-02-10 23:14:37,149 INFO L178 Difference]: Start difference. First operand has 76 places, 87 transitions. Second operand 3 states and 437 transitions. [2020-02-10 23:14:37,150 INFO L206 Difference]: Finished difference. Result has 78 places, 85 transitions [2020-02-10 23:14:37,150 INFO L292 CegarLoopForPetriNet]: {PETRI_ALPHABET=153, PETRI_DIFFERENCE_MINUEND_FLOW=416, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=408, PETRI_PLACES=78, PETRI_TRANSITIONS=85} [2020-02-10 23:14:37,150 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 78 places, 85 transitions [2020-02-10 23:14:37,159 INFO L129 PetriNetUnfolder]: 45/121 cut-off events. [2020-02-10 23:14:37,159 INFO L130 PetriNetUnfolder]: For 108/108 co-relation queries the response was YES. [2020-02-10 23:14:37,160 INFO L76 FinitePrefix]: Finished finitePrefix Result has 268 conditions, 121 events. 45/121 cut-off events. For 108/108 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 320 event pairs. 0/121 useless extension candidates. Maximal degree in co-relation 242. Up to 18 conditions per place. [2020-02-10 23:14:37,161 INFO L82 GeneralOperation]: Start removeDead. Operand has 78 places, 85 transitions [2020-02-10 23:14:37,163 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 78 places, 85 transitions [2020-02-10 23:14:37,163 INFO L479 AbstractCegarLoop]: Abstraction has has 78 places, 85 transitions [2020-02-10 23:14:37,163 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-02-10 23:14:37,175 INFO L129 PetriNetUnfolder]: 45/120 cut-off events. [2020-02-10 23:14:37,175 INFO L130 PetriNetUnfolder]: For 108/108 co-relation queries the response was YES. [2020-02-10 23:14:37,175 INFO L219 CegarLoopForPetriNet]: Found error trace [2020-02-10 23:14:37,175 INFO L227 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-02-10 23:14:37,175 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2020-02-10 23:14:37,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-02-10 23:14:37,176 INFO L82 PathProgramCache]: Analyzing trace with hash -1041955494, now seen corresponding path program 1 times [2020-02-10 23:14:37,176 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-02-10 23:14:37,176 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199526830] [2020-02-10 23:14:37,176 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-02-10 23:14:37,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-02-10 23:14:37,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-02-10 23:14:37,200 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1199526830] [2020-02-10 23:14:37,201 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-02-10 23:14:37,201 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-02-10 23:14:37,201 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30217802] [2020-02-10 23:14:37,201 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-02-10 23:14:37,201 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-02-10 23:14:37,202 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-02-10 23:14:37,202 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-02-10 23:14:37,203 INFO L413 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 153 [2020-02-10 23:14:37,203 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 85 transitions. Second operand 3 states. [2020-02-10 23:14:37,203 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-02-10 23:14:37,203 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 153 [2020-02-10 23:14:37,203 INFO L68 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-02-10 23:14:37,220 INFO L129 PetriNetUnfolder]: 0/31 cut-off events. [2020-02-10 23:14:37,220 INFO L130 PetriNetUnfolder]: For 48/48 co-relation queries the response was YES. [2020-02-10 23:14:37,221 INFO L76 FinitePrefix]: Finished finitePrefix Result has 91 conditions, 31 events. 0/31 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 22 event pairs. 9/40 useless extension candidates. Maximal degree in co-relation 64. Up to 2 conditions per place. [2020-02-10 23:14:37,222 INFO L145 encePairwiseOnDemand]: 143/153 looper letters, 1 selfloop transitions, 1 changer transitions 0/31 dead transitions. [2020-02-10 23:14:37,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-02-10 23:14:37,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-02-10 23:14:37,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 437 transitions. [2020-02-10 23:14:37,224 INFO L464 CegarLoopForPetriNet]: DFA transition density 0.9520697167755992 [2020-02-10 23:14:37,224 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 437 transitions. [2020-02-10 23:14:37,224 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 437 transitions. [2020-02-10 23:14:37,225 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-02-10 23:14:37,225 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 437 transitions. [2020-02-10 23:14:37,226 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-02-10 23:14:37,227 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 4 states. [2020-02-10 23:14:37,227 INFO L81 ComplementDD]: Finished complementDD. Result 4 states. [2020-02-10 23:14:37,227 INFO L178 Difference]: Start difference. First operand has 78 places, 85 transitions. Second operand 3 states and 437 transitions. [2020-02-10 23:14:37,227 INFO L206 Difference]: Finished difference. Result has 80 places, 31 transitions [2020-02-10 23:14:37,228 INFO L292 CegarLoopForPetriNet]: {PETRI_ALPHABET=153, PETRI_DIFFERENCE_MINUEND_FLOW=408, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=140, PETRI_PLACES=80, PETRI_TRANSITIONS=31} [2020-02-10 23:14:37,228 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 80 places, 31 transitions [2020-02-10 23:14:37,232 INFO L129 PetriNetUnfolder]: 0/31 cut-off events. [2020-02-10 23:14:37,232 INFO L130 PetriNetUnfolder]: For 19/19 co-relation queries the response was YES. [2020-02-10 23:14:37,233 INFO L76 FinitePrefix]: Finished finitePrefix Result has 90 conditions, 31 events. 0/31 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 22 event pairs. 0/31 useless extension candidates. Maximal degree in co-relation 63. Up to 2 conditions per place. [2020-02-10 23:14:37,233 INFO L82 GeneralOperation]: Start removeDead. Operand has 80 places, 31 transitions [2020-02-10 23:14:37,234 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 80 places, 31 transitions [2020-02-10 23:14:37,234 INFO L479 AbstractCegarLoop]: Abstraction has has 80 places, 31 transitions [2020-02-10 23:14:37,234 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-02-10 23:14:37,238 INFO L129 PetriNetUnfolder]: 0/30 cut-off events. [2020-02-10 23:14:37,238 INFO L130 PetriNetUnfolder]: For 19/19 co-relation queries the response was YES. [2020-02-10 23:14:37,239 INFO L219 CegarLoopForPetriNet]: Found error trace [2020-02-10 23:14:37,239 INFO L227 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-02-10 23:14:37,239 INFO L427 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2020-02-10 23:14:37,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-02-10 23:14:37,239 INFO L82 PathProgramCache]: Analyzing trace with hash -1952089610, now seen corresponding path program 1 times [2020-02-10 23:14:37,240 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-02-10 23:14:37,240 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1279217003] [2020-02-10 23:14:37,240 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-02-10 23:14:37,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-02-10 23:14:37,964 WARN L192 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 34 [2020-02-10 23:14:38,104 WARN L192 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 35 [2020-02-10 23:14:38,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-02-10 23:14:38,114 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1279217003] [2020-02-10 23:14:38,114 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-02-10 23:14:38,114 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-02-10 23:14:38,114 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275127136] [2020-02-10 23:14:38,115 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-02-10 23:14:38,115 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-02-10 23:14:38,115 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-02-10 23:14:38,115 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2020-02-10 23:14:38,117 INFO L413 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 153 [2020-02-10 23:14:38,118 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 31 transitions. Second operand 12 states. [2020-02-10 23:14:38,118 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-02-10 23:14:38,118 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 153 [2020-02-10 23:14:38,118 INFO L68 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-02-10 23:14:41,276 WARN L192 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 36 [2020-02-10 23:14:41,940 INFO L129 PetriNetUnfolder]: 5379/7392 cut-off events. [2020-02-10 23:14:41,941 INFO L130 PetriNetUnfolder]: For 469/469 co-relation queries the response was YES. [2020-02-10 23:14:41,967 INFO L76 FinitePrefix]: Finished finitePrefix Result has 14824 conditions, 7392 events. 5379/7392 cut-off events. For 469/469 co-relation queries the response was YES. Maximal size of possible extension queue 493. Compared 36589 event pairs. 1/7167 useless extension candidates. Maximal degree in co-relation 14796. Up to 2561 conditions per place. [2020-02-10 23:14:42,056 INFO L145 encePairwiseOnDemand]: 142/153 looper letters, 54 selfloop transitions, 9 changer transitions 1/84 dead transitions. [2020-02-10 23:14:42,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-02-10 23:14:42,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-02-10 23:14:42,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1637 transitions. [2020-02-10 23:14:42,061 INFO L464 CegarLoopForPetriNet]: DFA transition density 0.8916122004357299 [2020-02-10 23:14:42,061 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1637 transitions. [2020-02-10 23:14:42,062 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1637 transitions. [2020-02-10 23:14:42,063 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-02-10 23:14:42,063 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1637 transitions. [2020-02-10 23:14:42,066 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 13 states. [2020-02-10 23:14:42,069 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 13 states. [2020-02-10 23:14:42,069 INFO L81 ComplementDD]: Finished complementDD. Result 13 states. [2020-02-10 23:14:42,069 INFO L178 Difference]: Start difference. First operand has 80 places, 31 transitions. Second operand 12 states and 1637 transitions. [2020-02-10 23:14:42,070 INFO L206 Difference]: Finished difference. Result has 101 places, 39 transitions [2020-02-10 23:14:42,071 INFO L292 CegarLoopForPetriNet]: {PETRI_ALPHABET=153, PETRI_DIFFERENCE_MINUEND_FLOW=140, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=211, PETRI_PLACES=101, PETRI_TRANSITIONS=39} [2020-02-10 23:14:42,071 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 101 places, 39 transitions [2020-02-10 23:14:42,085 INFO L129 PetriNetUnfolder]: 0/116 cut-off events. [2020-02-10 23:14:42,086 INFO L130 PetriNetUnfolder]: For 97/97 co-relation queries the response was YES. [2020-02-10 23:14:42,087 INFO L76 FinitePrefix]: Finished finitePrefix Result has 298 conditions, 116 events. 0/116 cut-off events. For 97/97 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 509 event pairs. 0/101 useless extension candidates. Maximal degree in co-relation 260. Up to 11 conditions per place. [2020-02-10 23:14:42,087 INFO L82 GeneralOperation]: Start removeDead. Operand has 101 places, 39 transitions [2020-02-10 23:14:42,089 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 100 places, 39 transitions [2020-02-10 23:14:42,090 INFO L479 AbstractCegarLoop]: Abstraction has has 100 places, 39 transitions [2020-02-10 23:14:42,090 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-02-10 23:14:42,103 INFO L129 PetriNetUnfolder]: 0/107 cut-off events. [2020-02-10 23:14:42,103 INFO L130 PetriNetUnfolder]: For 97/97 co-relation queries the response was YES. [2020-02-10 23:14:42,104 INFO L219 CegarLoopForPetriNet]: Found error trace [2020-02-10 23:14:42,104 INFO L227 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-02-10 23:14:42,104 INFO L427 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2020-02-10 23:14:42,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-02-10 23:14:42,104 INFO L82 PathProgramCache]: Analyzing trace with hash 74667986, now seen corresponding path program 2 times [2020-02-10 23:14:42,104 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-02-10 23:14:42,105 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317051051] [2020-02-10 23:14:42,105 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-02-10 23:14:42,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-02-10 23:14:42,732 WARN L192 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 34 [2020-02-10 23:14:42,862 WARN L192 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 35 [2020-02-10 23:14:42,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-02-10 23:14:42,873 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1317051051] [2020-02-10 23:14:42,873 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-02-10 23:14:42,873 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-02-10 23:14:42,873 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862714004] [2020-02-10 23:14:42,874 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-02-10 23:14:42,874 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-02-10 23:14:42,874 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-02-10 23:14:42,874 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2020-02-10 23:14:42,876 INFO L413 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 153 [2020-02-10 23:14:42,877 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 39 transitions. Second operand 12 states. [2020-02-10 23:14:42,877 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-02-10 23:14:42,877 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 153 [2020-02-10 23:14:42,877 INFO L68 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-02-10 23:14:50,087 INFO L129 PetriNetUnfolder]: 6661/9214 cut-off events. [2020-02-10 23:14:50,088 INFO L130 PetriNetUnfolder]: For 10866/11044 co-relation queries the response was YES. [2020-02-10 23:14:50,141 INFO L76 FinitePrefix]: Finished finitePrefix Result has 27966 conditions, 9214 events. 6661/9214 cut-off events. For 10866/11044 co-relation queries the response was YES. Maximal size of possible extension queue 568. Compared 47875 event pairs. 1/8989 useless extension candidates. Maximal degree in co-relation 27927. Up to 3592 conditions per place. [2020-02-10 23:14:50,248 INFO L145 encePairwiseOnDemand]: 142/153 looper letters, 70 selfloop transitions, 9 changer transitions 1/100 dead transitions. [2020-02-10 23:14:50,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-02-10 23:14:50,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-02-10 23:14:50,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1637 transitions. [2020-02-10 23:14:50,253 INFO L464 CegarLoopForPetriNet]: DFA transition density 0.8916122004357299 [2020-02-10 23:14:50,253 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1637 transitions. [2020-02-10 23:14:50,253 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1637 transitions. [2020-02-10 23:14:50,255 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-02-10 23:14:50,255 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1637 transitions. [2020-02-10 23:14:50,257 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 13 states. [2020-02-10 23:14:50,260 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 13 states. [2020-02-10 23:14:50,261 INFO L81 ComplementDD]: Finished complementDD. Result 13 states. [2020-02-10 23:14:50,261 INFO L178 Difference]: Start difference. First operand has 100 places, 39 transitions. Second operand 12 states and 1637 transitions. [2020-02-10 23:14:50,262 INFO L206 Difference]: Finished difference. Result has 121 places, 47 transitions [2020-02-10 23:14:50,262 INFO L292 CegarLoopForPetriNet]: {PETRI_ALPHABET=153, PETRI_DIFFERENCE_MINUEND_FLOW=211, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=313, PETRI_PLACES=121, PETRI_TRANSITIONS=47} [2020-02-10 23:14:50,262 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 121 places, 47 transitions [2020-02-10 23:14:50,293 INFO L129 PetriNetUnfolder]: 0/200 cut-off events. [2020-02-10 23:14:50,293 INFO L130 PetriNetUnfolder]: For 265/265 co-relation queries the response was YES. [2020-02-10 23:14:50,296 INFO L76 FinitePrefix]: Finished finitePrefix Result has 561 conditions, 200 events. 0/200 cut-off events. For 265/265 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1236 event pairs. 0/173 useless extension candidates. Maximal degree in co-relation 512. Up to 18 conditions per place. [2020-02-10 23:14:50,296 INFO L82 GeneralOperation]: Start removeDead. Operand has 121 places, 47 transitions [2020-02-10 23:14:50,300 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 120 places, 47 transitions [2020-02-10 23:14:50,300 INFO L479 AbstractCegarLoop]: Abstraction has has 120 places, 47 transitions [2020-02-10 23:14:50,301 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-02-10 23:14:50,327 INFO L129 PetriNetUnfolder]: 0/183 cut-off events. [2020-02-10 23:14:50,328 INFO L130 PetriNetUnfolder]: For 265/265 co-relation queries the response was YES. [2020-02-10 23:14:50,328 INFO L219 CegarLoopForPetriNet]: Found error trace [2020-02-10 23:14:50,328 INFO L227 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-02-10 23:14:50,328 INFO L427 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2020-02-10 23:14:50,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-02-10 23:14:50,329 INFO L82 PathProgramCache]: Analyzing trace with hash -1114480502, now seen corresponding path program 3 times [2020-02-10 23:14:50,329 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-02-10 23:14:50,329 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561696891] [2020-02-10 23:14:50,329 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-02-10 23:14:50,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-02-10 23:14:51,089 WARN L192 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 36 [2020-02-10 23:14:51,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-02-10 23:14:51,099 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561696891] [2020-02-10 23:14:51,099 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-02-10 23:14:51,099 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-02-10 23:14:51,100 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050315707] [2020-02-10 23:14:51,100 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-02-10 23:14:51,100 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-02-10 23:14:51,100 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-02-10 23:14:51,101 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2020-02-10 23:14:51,102 INFO L413 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 153 [2020-02-10 23:14:51,103 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 47 transitions. Second operand 12 states. [2020-02-10 23:14:51,103 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-02-10 23:14:51,103 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 153 [2020-02-10 23:14:51,103 INFO L68 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-02-10 23:15:09,577 INFO L129 PetriNetUnfolder]: 9518/14509 cut-off events. [2020-02-10 23:15:09,577 INFO L130 PetriNetUnfolder]: For 29087/29263 co-relation queries the response was YES. [2020-02-10 23:15:09,699 INFO L76 FinitePrefix]: Finished finitePrefix Result has 47558 conditions, 14509 events. 9518/14509 cut-off events. For 29087/29263 co-relation queries the response was YES. Maximal size of possible extension queue 861. Compared 94898 event pairs. 1/14251 useless extension candidates. Maximal degree in co-relation 47508. Up to 5648 conditions per place. [2020-02-10 23:15:09,910 INFO L145 encePairwiseOnDemand]: 142/153 looper letters, 88 selfloop transitions, 18 changer transitions 1/127 dead transitions. [2020-02-10 23:15:09,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-02-10 23:15:09,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-02-10 23:15:09,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1637 transitions. [2020-02-10 23:15:09,916 INFO L464 CegarLoopForPetriNet]: DFA transition density 0.8916122004357299 [2020-02-10 23:15:09,916 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1637 transitions. [2020-02-10 23:15:09,916 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1637 transitions. [2020-02-10 23:15:09,917 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-02-10 23:15:09,917 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1637 transitions. [2020-02-10 23:15:09,920 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 13 states. [2020-02-10 23:15:09,923 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 13 states. [2020-02-10 23:15:09,923 INFO L81 ComplementDD]: Finished complementDD. Result 13 states. [2020-02-10 23:15:09,923 INFO L178 Difference]: Start difference. First operand has 120 places, 47 transitions. Second operand 12 states and 1637 transitions. [2020-02-10 23:15:09,924 INFO L206 Difference]: Finished difference. Result has 141 places, 61 transitions [2020-02-10 23:15:09,924 INFO L292 CegarLoopForPetriNet]: {PETRI_ALPHABET=153, PETRI_DIFFERENCE_MINUEND_FLOW=313, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=511, PETRI_PLACES=141, PETRI_TRANSITIONS=61} [2020-02-10 23:15:09,925 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 141 places, 61 transitions [2020-02-10 23:15:10,066 INFO L129 PetriNetUnfolder]: 0/692 cut-off events. [2020-02-10 23:15:10,067 INFO L130 PetriNetUnfolder]: For 1298/1304 co-relation queries the response was YES. [2020-02-10 23:15:10,073 INFO L76 FinitePrefix]: Finished finitePrefix Result has 1955 conditions, 692 events. 0/692 cut-off events. For 1298/1304 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 7033 event pairs. 0/605 useless extension candidates. Maximal degree in co-relation 1895. Up to 65 conditions per place. [2020-02-10 23:15:10,073 INFO L82 GeneralOperation]: Start removeDead. Operand has 141 places, 61 transitions [2020-02-10 23:15:10,083 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 140 places, 61 transitions [2020-02-10 23:15:10,084 INFO L479 AbstractCegarLoop]: Abstraction has has 140 places, 61 transitions [2020-02-10 23:15:10,084 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-02-10 23:15:10,180 INFO L129 PetriNetUnfolder]: 0/629 cut-off events. [2020-02-10 23:15:10,180 INFO L130 PetriNetUnfolder]: For 1298/1306 co-relation queries the response was YES. [2020-02-10 23:15:10,180 INFO L219 CegarLoopForPetriNet]: Found error trace [2020-02-10 23:15:10,181 INFO L227 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-02-10 23:15:10,181 INFO L427 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2020-02-10 23:15:10,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-02-10 23:15:10,181 INFO L82 PathProgramCache]: Analyzing trace with hash 612450484, now seen corresponding path program 4 times [2020-02-10 23:15:10,181 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-02-10 23:15:10,181 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131517139] [2020-02-10 23:15:10,181 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-02-10 23:15:10,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-02-10 23:15:10,821 WARN L192 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 34 [2020-02-10 23:15:10,961 WARN L192 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 35 [2020-02-10 23:15:10,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-02-10 23:15:10,969 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131517139] [2020-02-10 23:15:10,969 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-02-10 23:15:10,969 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-02-10 23:15:10,970 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865944876] [2020-02-10 23:15:10,970 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-02-10 23:15:10,970 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-02-10 23:15:10,970 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-02-10 23:15:10,971 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2020-02-10 23:15:10,972 INFO L413 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 153 [2020-02-10 23:15:10,973 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 61 transitions. Second operand 12 states. [2020-02-10 23:15:10,973 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-02-10 23:15:10,973 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 153 [2020-02-10 23:15:10,973 INFO L68 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-02-10 23:15:54,456 INFO L129 PetriNetUnfolder]: 12404/20179 cut-off events. [2020-02-10 23:15:54,456 INFO L130 PetriNetUnfolder]: For 85475/86267 co-relation queries the response was YES. [2020-02-10 23:15:54,674 INFO L76 FinitePrefix]: Finished finitePrefix Result has 82888 conditions, 20179 events. 12404/20179 cut-off events. For 85475/86267 co-relation queries the response was YES. Maximal size of possible extension queue 1229. Compared 153316 event pairs. 1/19876 useless extension candidates. Maximal degree in co-relation 82827. Up to 7862 conditions per place. [2020-02-10 23:15:54,999 INFO L145 encePairwiseOnDemand]: 142/153 looper letters, 113 selfloop transitions, 21 changer transitions 1/155 dead transitions. [2020-02-10 23:15:55,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-02-10 23:15:55,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-02-10 23:15:55,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1637 transitions. [2020-02-10 23:15:55,004 INFO L464 CegarLoopForPetriNet]: DFA transition density 0.8916122004357299 [2020-02-10 23:15:55,005 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1637 transitions. [2020-02-10 23:15:55,005 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1637 transitions. [2020-02-10 23:15:55,006 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-02-10 23:15:55,006 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1637 transitions. [2020-02-10 23:15:55,008 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 13 states. [2020-02-10 23:15:55,011 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 13 states. [2020-02-10 23:15:55,011 INFO L81 ComplementDD]: Finished complementDD. Result 13 states. [2020-02-10 23:15:55,011 INFO L178 Difference]: Start difference. First operand has 140 places, 61 transitions. Second operand 12 states and 1637 transitions. [2020-02-10 23:15:55,013 INFO L206 Difference]: Finished difference. Result has 161 places, 76 transitions [2020-02-10 23:15:55,013 INFO L292 CegarLoopForPetriNet]: {PETRI_ALPHABET=153, PETRI_DIFFERENCE_MINUEND_FLOW=511, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=761, PETRI_PLACES=161, PETRI_TRANSITIONS=76} [2020-02-10 23:15:55,013 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 161 places, 76 transitions [2020-02-10 23:15:55,323 INFO L129 PetriNetUnfolder]: 0/1282 cut-off events. [2020-02-10 23:15:55,323 INFO L130 PetriNetUnfolder]: For 3393/3408 co-relation queries the response was YES. [2020-02-10 23:15:55,336 INFO L76 FinitePrefix]: Finished finitePrefix Result has 3853 conditions, 1282 events. 0/1282 cut-off events. For 3393/3408 co-relation queries the response was YES. Maximal size of possible extension queue 117. Compared 15488 event pairs. 0/1143 useless extension candidates. Maximal degree in co-relation 3782. Up to 116 conditions per place. [2020-02-10 23:15:55,336 INFO L82 GeneralOperation]: Start removeDead. Operand has 161 places, 76 transitions [2020-02-10 23:15:55,359 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 160 places, 76 transitions [2020-02-10 23:15:55,359 INFO L479 AbstractCegarLoop]: Abstraction has has 160 places, 76 transitions [2020-02-10 23:15:55,359 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-02-10 23:15:55,606 INFO L129 PetriNetUnfolder]: 0/1169 cut-off events. [2020-02-10 23:15:55,606 INFO L130 PetriNetUnfolder]: For 3401/3418 co-relation queries the response was YES. [2020-02-10 23:15:55,607 INFO L219 CegarLoopForPetriNet]: Found error trace [2020-02-10 23:15:55,607 INFO L227 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-02-10 23:15:55,607 INFO L427 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2020-02-10 23:15:55,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-02-10 23:15:55,607 INFO L82 PathProgramCache]: Analyzing trace with hash -1942763300, now seen corresponding path program 5 times [2020-02-10 23:15:55,607 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-02-10 23:15:55,607 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667168756] [2020-02-10 23:15:55,608 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-02-10 23:15:55,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-02-10 23:15:56,149 WARN L192 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 34 [2020-02-10 23:15:56,284 WARN L192 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 36 [2020-02-10 23:15:56,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-02-10 23:15:56,293 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667168756] [2020-02-10 23:15:56,293 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-02-10 23:15:56,293 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-02-10 23:15:56,294 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516127192] [2020-02-10 23:15:56,294 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-02-10 23:15:56,294 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-02-10 23:15:56,294 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-02-10 23:15:56,294 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2020-02-10 23:15:56,295 INFO L413 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 153 [2020-02-10 23:15:56,296 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 160 places, 76 transitions. Second operand 12 states. [2020-02-10 23:15:56,296 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-02-10 23:15:56,296 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 153 [2020-02-10 23:15:56,296 INFO L68 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-02-10 23:17:12,879 INFO L129 PetriNetUnfolder]: 14724/24183 cut-off events. [2020-02-10 23:17:12,879 INFO L130 PetriNetUnfolder]: For 178430/182621 co-relation queries the response was YES. [2020-02-10 23:17:13,199 INFO L76 FinitePrefix]: Finished finitePrefix Result has 119431 conditions, 24183 events. 14724/24183 cut-off events. For 178430/182621 co-relation queries the response was YES. Maximal size of possible extension queue 1587. Compared 189819 event pairs. 6/23892 useless extension candidates. Maximal degree in co-relation 119359. Up to 9094 conditions per place. [2020-02-10 23:17:13,677 INFO L145 encePairwiseOnDemand]: 142/153 looper letters, 155 selfloop transitions, 15 changer transitions 1/191 dead transitions. [2020-02-10 23:17:13,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-02-10 23:17:13,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-02-10 23:17:13,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1637 transitions. [2020-02-10 23:17:13,685 INFO L464 CegarLoopForPetriNet]: DFA transition density 0.8916122004357299 [2020-02-10 23:17:13,685 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1637 transitions. [2020-02-10 23:17:13,686 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1637 transitions. [2020-02-10 23:17:13,687 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-02-10 23:17:13,687 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1637 transitions. [2020-02-10 23:17:13,689 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 13 states. [2020-02-10 23:17:13,692 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 13 states. [2020-02-10 23:17:13,692 INFO L81 ComplementDD]: Finished complementDD. Result 13 states. [2020-02-10 23:17:13,692 INFO L178 Difference]: Start difference. First operand has 160 places, 76 transitions. Second operand 12 states and 1637 transitions. [2020-02-10 23:17:13,694 INFO L206 Difference]: Finished difference. Result has 181 places, 89 transitions [2020-02-10 23:17:13,694 INFO L292 CegarLoopForPetriNet]: {PETRI_ALPHABET=153, PETRI_DIFFERENCE_MINUEND_FLOW=761, PETRI_DIFFERENCE_MINUEND_PLACES=160, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1008, PETRI_PLACES=181, PETRI_TRANSITIONS=89} [2020-02-10 23:17:13,694 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 181 places, 89 transitions [2020-02-10 23:17:14,402 INFO L129 PetriNetUnfolder]: 0/1972 cut-off events. [2020-02-10 23:17:14,402 INFO L130 PetriNetUnfolder]: For 6963/6986 co-relation queries the response was YES. [2020-02-10 23:17:14,427 INFO L76 FinitePrefix]: Finished finitePrefix Result has 6276 conditions, 1972 events. 0/1972 cut-off events. For 6963/6986 co-relation queries the response was YES. Maximal size of possible extension queue 183. Compared 26495 event pairs. 1/1759 useless extension candidates. Maximal degree in co-relation 6194. Up to 182 conditions per place. [2020-02-10 23:17:14,427 INFO L82 GeneralOperation]: Start removeDead. Operand has 181 places, 89 transitions [2020-02-10 23:17:14,467 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 180 places, 89 transitions [2020-02-10 23:17:14,467 INFO L479 AbstractCegarLoop]: Abstraction has has 180 places, 89 transitions [2020-02-10 23:17:14,467 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-02-10 23:17:14,967 INFO L129 PetriNetUnfolder]: 0/1793 cut-off events. [2020-02-10 23:17:14,967 INFO L130 PetriNetUnfolder]: For 6971/6994 co-relation queries the response was YES. [2020-02-10 23:17:14,967 INFO L219 CegarLoopForPetriNet]: Found error trace [2020-02-10 23:17:14,967 INFO L227 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-02-10 23:17:14,968 INFO L427 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2020-02-10 23:17:14,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-02-10 23:17:14,968 INFO L82 PathProgramCache]: Analyzing trace with hash -1994143756, now seen corresponding path program 6 times [2020-02-10 23:17:14,968 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-02-10 23:17:14,968 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348011708] [2020-02-10 23:17:14,968 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-02-10 23:17:14,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-02-10 23:17:15,607 WARN L192 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 32 [2020-02-10 23:17:15,741 WARN L192 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 33 [2020-02-10 23:17:15,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-02-10 23:17:15,750 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348011708] [2020-02-10 23:17:15,750 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-02-10 23:17:15,751 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-02-10 23:17:15,751 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311192744] [2020-02-10 23:17:15,751 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-02-10 23:17:15,751 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-02-10 23:17:15,752 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-02-10 23:17:15,752 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2020-02-10 23:17:15,753 INFO L413 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 153 [2020-02-10 23:17:15,754 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 180 places, 89 transitions. Second operand 12 states. [2020-02-10 23:17:15,754 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-02-10 23:17:15,754 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 153 [2020-02-10 23:17:15,754 INFO L68 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-02-10 23:19:38,683 INFO L129 PetriNetUnfolder]: 18152/30846 cut-off events. [2020-02-10 23:19:38,683 INFO L130 PetriNetUnfolder]: For 307863/311805 co-relation queries the response was YES. [2020-02-10 23:19:39,203 INFO L76 FinitePrefix]: Finished finitePrefix Result has 165233 conditions, 30846 events. 18152/30846 cut-off events. For 307863/311805 co-relation queries the response was YES. Maximal size of possible extension queue 2191. Compared 266421 event pairs. 4/30548 useless extension candidates. Maximal degree in co-relation 165150. Up to 11350 conditions per place. [2020-02-10 23:19:39,924 INFO L145 encePairwiseOnDemand]: 142/153 looper letters, 236 selfloop transitions, 20 changer transitions 1/277 dead transitions. [2020-02-10 23:19:39,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-02-10 23:19:39,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-02-10 23:19:39,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1637 transitions. [2020-02-10 23:19:39,928 INFO L464 CegarLoopForPetriNet]: DFA transition density 0.8916122004357299 [2020-02-10 23:19:39,928 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1637 transitions. [2020-02-10 23:19:39,928 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1637 transitions. [2020-02-10 23:19:39,929 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-02-10 23:19:39,930 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1637 transitions. [2020-02-10 23:19:39,932 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 13 states. [2020-02-10 23:19:39,934 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 13 states. [2020-02-10 23:19:39,934 INFO L81 ComplementDD]: Finished complementDD. Result 13 states. [2020-02-10 23:19:39,934 INFO L178 Difference]: Start difference. First operand has 180 places, 89 transitions. Second operand 12 states and 1637 transitions. [2020-02-10 23:19:39,935 INFO L206 Difference]: Finished difference. Result has 201 places, 105 transitions [2020-02-10 23:19:39,936 INFO L292 CegarLoopForPetriNet]: {PETRI_ALPHABET=153, PETRI_DIFFERENCE_MINUEND_FLOW=1008, PETRI_DIFFERENCE_MINUEND_PLACES=180, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1366, PETRI_PLACES=201, PETRI_TRANSITIONS=105} [2020-02-10 23:19:39,936 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 201 places, 105 transitions [2020-02-10 23:19:42,533 INFO L129 PetriNetUnfolder]: 0/3580 cut-off events. [2020-02-10 23:19:42,533 INFO L130 PetriNetUnfolder]: For 16465/16534 co-relation queries the response was YES. [2020-02-10 23:19:42,582 INFO L76 FinitePrefix]: Finished finitePrefix Result has 12087 conditions, 3580 events. 0/3580 cut-off events. For 16465/16534 co-relation queries the response was YES. Maximal size of possible extension queue 362. Compared 54432 event pairs. 3/3185 useless extension candidates. Maximal degree in co-relation 11994. Up to 361 conditions per place. [2020-02-10 23:19:42,582 INFO L82 GeneralOperation]: Start removeDead. Operand has 201 places, 105 transitions [2020-02-10 23:19:42,666 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 200 places, 105 transitions [2020-02-10 23:19:42,666 INFO L479 AbstractCegarLoop]: Abstraction has has 200 places, 105 transitions [2020-02-10 23:19:42,666 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-02-10 23:19:44,081 INFO L129 PetriNetUnfolder]: 0/3222 cut-off events. [2020-02-10 23:19:44,081 INFO L130 PetriNetUnfolder]: For 16507/16584 co-relation queries the response was YES. [2020-02-10 23:19:44,081 INFO L219 CegarLoopForPetriNet]: Found error trace [2020-02-10 23:19:44,081 INFO L227 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-02-10 23:19:44,081 INFO L427 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2020-02-10 23:19:44,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-02-10 23:19:44,082 INFO L82 PathProgramCache]: Analyzing trace with hash -1302435298, now seen corresponding path program 7 times [2020-02-10 23:19:44,082 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-02-10 23:19:44,082 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491244354] [2020-02-10 23:19:44,082 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-02-10 23:19:44,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-02-10 23:19:44,772 WARN L192 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 35 [2020-02-10 23:19:44,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-02-10 23:19:44,781 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491244354] [2020-02-10 23:19:44,781 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-02-10 23:19:44,781 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-02-10 23:19:44,781 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889571354] [2020-02-10 23:19:44,782 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-02-10 23:19:44,782 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-02-10 23:19:44,782 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-02-10 23:19:44,782 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2020-02-10 23:19:44,784 INFO L413 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 153 [2020-02-10 23:19:44,784 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 200 places, 105 transitions. Second operand 12 states. [2020-02-10 23:19:44,785 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-02-10 23:19:44,785 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 153 [2020-02-10 23:19:44,785 INFO L68 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-02-10 23:23:53,607 INFO L129 PetriNetUnfolder]: 21736/38722 cut-off events. [2020-02-10 23:23:53,607 INFO L130 PetriNetUnfolder]: For 454642/457214 co-relation queries the response was YES. [2020-02-10 23:23:54,625 INFO L76 FinitePrefix]: Finished finitePrefix Result has 218527 conditions, 38722 events. 21736/38722 cut-off events. For 454642/457214 co-relation queries the response was YES. Maximal size of possible extension queue 2786. Compared 361708 event pairs. 1/38312 useless extension candidates. Maximal degree in co-relation 218433. Up to 15804 conditions per place. [2020-02-10 23:23:55,696 INFO L145 encePairwiseOnDemand]: 142/153 looper letters, 177 selfloop transitions, 24 changer transitions 1/222 dead transitions. [2020-02-10 23:23:55,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-02-10 23:23:55,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-02-10 23:23:55,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1637 transitions. [2020-02-10 23:23:55,700 INFO L464 CegarLoopForPetriNet]: DFA transition density 0.8916122004357299 [2020-02-10 23:23:55,700 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1637 transitions. [2020-02-10 23:23:55,700 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1637 transitions. [2020-02-10 23:23:55,701 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-02-10 23:23:55,701 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1637 transitions. [2020-02-10 23:23:55,703 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 13 states. [2020-02-10 23:23:55,706 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 13 states. [2020-02-10 23:23:55,706 INFO L81 ComplementDD]: Finished complementDD. Result 13 states. [2020-02-10 23:23:55,706 INFO L178 Difference]: Start difference. First operand has 200 places, 105 transitions. Second operand 12 states and 1637 transitions. [2020-02-10 23:23:55,707 INFO L206 Difference]: Finished difference. Result has 221 places, 121 transitions [2020-02-10 23:23:55,707 INFO L292 CegarLoopForPetriNet]: {PETRI_ALPHABET=153, PETRI_DIFFERENCE_MINUEND_FLOW=1366, PETRI_DIFFERENCE_MINUEND_PLACES=200, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1740, PETRI_PLACES=221, PETRI_TRANSITIONS=121} [2020-02-10 23:23:55,707 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 221 places, 121 transitions [2020-02-10 23:24:00,974 INFO L129 PetriNetUnfolder]: 0/4874 cut-off events. [2020-02-10 23:24:00,975 INFO L130 PetriNetUnfolder]: For 28753/28886 co-relation queries the response was YES. [2020-02-10 23:24:01,028 INFO L76 FinitePrefix]: Finished finitePrefix Result has 17346 conditions, 4874 events. 0/4874 cut-off events. For 28753/28886 co-relation queries the response was YES. Maximal size of possible extension queue 485. Compared 78600 event pairs. 15/4356 useless extension candidates. Maximal degree in co-relation 17242. Up to 483 conditions per place. [2020-02-10 23:24:01,028 INFO L82 GeneralOperation]: Start removeDead. Operand has 221 places, 121 transitions [2020-02-10 23:24:01,123 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 220 places, 121 transitions [2020-02-10 23:24:01,123 INFO L479 AbstractCegarLoop]: Abstraction has has 220 places, 121 transitions [2020-02-10 23:24:01,123 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-02-10 23:24:03,531 INFO L129 PetriNetUnfolder]: 0/4394 cut-off events. [2020-02-10 23:24:03,531 INFO L130 PetriNetUnfolder]: For 28729/28855 co-relation queries the response was YES. [2020-02-10 23:24:03,532 INFO L219 CegarLoopForPetriNet]: Found error trace [2020-02-10 23:24:03,532 INFO L227 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-02-10 23:24:03,532 INFO L427 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2020-02-10 23:24:03,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-02-10 23:24:03,532 INFO L82 PathProgramCache]: Analyzing trace with hash -1637914096, now seen corresponding path program 8 times [2020-02-10 23:24:03,532 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-02-10 23:24:03,532 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774156228] [2020-02-10 23:24:03,533 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-02-10 23:24:03,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-02-10 23:24:04,254 WARN L192 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 35 [2020-02-10 23:24:04,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-02-10 23:24:04,263 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [774156228] [2020-02-10 23:24:04,263 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-02-10 23:24:04,263 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-02-10 23:24:04,263 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089797129] [2020-02-10 23:24:04,263 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-02-10 23:24:04,264 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-02-10 23:24:04,264 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-02-10 23:24:04,264 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2020-02-10 23:24:04,265 INFO L413 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 153 [2020-02-10 23:24:04,266 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 220 places, 121 transitions. Second operand 12 states. [2020-02-10 23:24:04,266 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-02-10 23:24:04,266 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 153 [2020-02-10 23:24:04,267 INFO L68 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand Received shutdown request... [2020-02-10 23:28:22,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-02-10 23:28:22,286 WARN L544 AbstractCegarLoop]: Verification canceled [2020-02-10 23:28:22,290 WARN L227 ceAbstractionStarter]: Timeout [2020-02-10 23:28:22,290 INFO L202 PluginConnector]: Adding new model example_10.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.02 11:28:22 BasicIcfg [2020-02-10 23:28:22,291 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-02-10 23:28:22,292 INFO L168 Benchmark]: Toolchain (without parser) took 846938.11 ms. Allocated memory was 137.4 MB in the beginning and 3.3 GB in the end (delta: 3.2 GB). Free memory was 119.3 MB in the beginning and 323.0 MB in the end (delta: -203.7 MB). Peak memory consumption was 3.0 GB. Max. memory is 7.1 GB. [2020-02-10 23:28:22,293 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.44 ms. Allocated memory is still 137.4 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-02-10 23:28:22,294 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.20 ms. Allocated memory is still 137.4 MB. Free memory was 119.1 MB in the beginning and 117.3 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 7.1 GB. [2020-02-10 23:28:22,294 INFO L168 Benchmark]: Boogie Preprocessor took 27.33 ms. Allocated memory is still 137.4 MB. Free memory was 117.3 MB in the beginning and 116.2 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 7.1 GB. [2020-02-10 23:28:22,295 INFO L168 Benchmark]: RCFGBuilder took 371.10 ms. Allocated memory is still 137.4 MB. Free memory was 116.0 MB in the beginning and 101.3 MB in the end (delta: 14.6 MB). Peak memory consumption was 14.6 MB. Max. memory is 7.1 GB. [2020-02-10 23:28:22,295 INFO L168 Benchmark]: TraceAbstraction took 846488.67 ms. Allocated memory was 137.4 MB in the beginning and 3.3 GB in the end (delta: 3.2 GB). Free memory was 100.9 MB in the beginning and 323.0 MB in the end (delta: -222.1 MB). Peak memory consumption was 2.9 GB. Max. memory is 7.1 GB. [2020-02-10 23:28:22,298 INFO L336 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 0.44 ms. Allocated memory is still 137.4 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 39.20 ms. Allocated memory is still 137.4 MB. Free memory was 119.1 MB in the beginning and 117.3 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 27.33 ms. Allocated memory is still 137.4 MB. Free memory was 117.3 MB in the beginning and 116.2 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 371.10 ms. Allocated memory is still 137.4 MB. Free memory was 116.0 MB in the beginning and 101.3 MB in the end (delta: 14.6 MB). Peak memory consumption was 14.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 846488.67 ms. Allocated memory was 137.4 MB in the beginning and 3.3 GB in the end (delta: 3.2 GB). Free memory was 100.9 MB in the beginning and 323.0 MB in the end (delta: -222.1 MB). Peak memory consumption was 2.9 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 5.3s, 72 ProgramPointsBefore, 62 ProgramPointsAfterwards, 131 TransitionsBefore, 121 TransitionsAfterwards, 3780 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 10 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 990 VarBasedMoverChecksPositive, 0 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 1035 CheckedPairsTotal, 10 TotalNumberOfCompositions - TimeoutResultAtElement [Line: 33]: Timeout (TraceAbstraction) Unable to prove that assertion always holds (line 33). Cancelled while CegarLoopForPetriNet was enhancing Floyd-Hoare automaton (12states, 131/153 universal loopers) in iteration 17,while PetriNetUnfolder was constructing finite prefix that currently has 224999 conditions, 38610 events (21759/38609 cut-off events. For 526517/529467 co-relation queries the response was YES. Maximal size of possible extension queue 2792. Compared 362580 event pairs. 1/38569 useless extension candidates. Maximal degree in co-relation 224894. Up to 15642 conditions per place.). - StatisticsResult: Ultimate Automizer benchmark data CFG has 11 procedures, 54 locations, 1 error locations. Started 1 CEGAR loops. Result: TIMEOUT, OverallTime: 846.1s, OverallIterations: 17, TraceHistogramMax: 1, AutomataDifference: 809.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 8.4s, HoareTripleCheckerStatistics: 448 SDtfs, 478 SDslu, 432 SDs, 0 SdLazy, 854 SolverSat, 36 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 123 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 97 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 6.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=121occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 12.5s AutomataMinimizationTime, 16 MinimizatonAttempts, 7 StatesRemovedByMinimization, 16 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 6.2s InterpolantComputationTime, 527 NumberOfCodeBlocks, 527 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 510 ConstructedInterpolants, 0 QuantifiedInterpolants, 241860 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 17 InterpolantComputations, 17 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown