/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedVariableLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/mcr/example_8.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-25 08:04:52,047 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-25 08:04:52,048 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-25 08:04:52,065 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-03-25 08:04:52,071 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-25 08:04:52,071 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-25 08:04:52,072 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-25 08:04:52,072 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-25 08:04:52,073 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-25 08:04:52,073 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-25 08:04:52,074 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-25 08:04:52,075 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-25 08:04:52,076 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-25 08:04:52,080 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-25 08:04:52,081 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-25 08:04:52,081 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-25 08:04:52,083 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-03-25 08:04:52,083 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-03-25 08:04:52,083 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-03-25 08:04:52,084 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-03-25 08:04:52,084 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-03-25 08:04:52,085 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-03-25 08:04:52,085 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-25 08:04:52,085 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-25 08:04:52,086 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-25 08:04:52,086 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-25 08:04:52,087 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-25 08:04:52,087 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-25 08:04:52,087 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-25 08:04:52,087 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-25 08:04:52,088 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-25 08:04:52,088 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-25 08:04:52,089 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-25 08:04:52,094 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-RepeatedVariableLbe.epf [2021-03-25 08:04:52,123 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-25 08:04:52,123 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-25 08:04:52,125 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-25 08:04:52,125 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-25 08:04:52,125 INFO L138 SettingsManager]: * Use SBE=true [2021-03-25 08:04:52,126 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-25 08:04:52,126 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-25 08:04:52,126 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-25 08:04:52,126 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-25 08:04:52,126 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-25 08:04:52,126 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-25 08:04:52,126 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-25 08:04:52,127 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-25 08:04:52,127 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-25 08:04:52,127 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-25 08:04:52,127 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-25 08:04:52,127 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-25 08:04:52,127 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-25 08:04:52,127 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-25 08:04:52,127 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-25 08:04:52,127 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-25 08:04:52,127 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-25 08:04:52,127 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-25 08:04:52,128 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-25 08:04:52,128 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-25 08:04:52,128 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-25 08:04:52,128 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-25 08:04:52,128 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2021-03-25 08:04:52,128 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-25 08:04:52,128 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-03-25 08:04:52,128 INFO L138 SettingsManager]: * Apply repeated Lipton Reduction=true WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-25 08:04:52,336 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-25 08:04:52,349 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-25 08:04:52,350 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-25 08:04:52,351 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-03-25 08:04:52,352 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-03-25 08:04:52,352 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/mcr/example_8.bpl [2021-03-25 08:04:52,353 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/mcr/example_8.bpl' [2021-03-25 08:04:52,377 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-25 08:04:52,378 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-03-25 08:04:52,380 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-25 08:04:52,380 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-25 08:04:52,380 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-25 08:04:52,387 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "example_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.03 08:04:52" (1/1) ... [2021-03-25 08:04:52,392 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "example_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.03 08:04:52" (1/1) ... [2021-03-25 08:04:52,396 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-25 08:04:52,397 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-25 08:04:52,397 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-25 08:04:52,398 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-25 08:04:52,403 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "example_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.03 08:04:52" (1/1) ... [2021-03-25 08:04:52,403 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "example_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.03 08:04:52" (1/1) ... [2021-03-25 08:04:52,403 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "example_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.03 08:04:52" (1/1) ... [2021-03-25 08:04:52,403 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "example_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.03 08:04:52" (1/1) ... [2021-03-25 08:04:52,405 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "example_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.03 08:04:52" (1/1) ... [2021-03-25 08:04:52,405 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "example_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.03 08:04:52" (1/1) ... [2021-03-25 08:04:52,406 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "example_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.03 08:04:52" (1/1) ... [2021-03-25 08:04:52,406 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-25 08:04:52,407 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-25 08:04:52,407 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-25 08:04:52,407 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-25 08:04:52,408 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "example_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.03 08:04:52" (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 [2021-03-25 08:04:52,460 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_1 given in one single declaration [2021-03-25 08:04:52,461 INFO L130 BoogieDeclarations]: Found specification of procedure set_1 [2021-03-25 08:04:52,461 INFO L138 BoogieDeclarations]: Found implementation of procedure set_1 [2021-03-25 08:04:52,461 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_2 given in one single declaration [2021-03-25 08:04:52,461 INFO L130 BoogieDeclarations]: Found specification of procedure set_2 [2021-03-25 08:04:52,461 INFO L138 BoogieDeclarations]: Found implementation of procedure set_2 [2021-03-25 08:04:52,462 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_3 given in one single declaration [2021-03-25 08:04:52,462 INFO L130 BoogieDeclarations]: Found specification of procedure set_3 [2021-03-25 08:04:52,462 INFO L138 BoogieDeclarations]: Found implementation of procedure set_3 [2021-03-25 08:04:52,462 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_4 given in one single declaration [2021-03-25 08:04:52,462 INFO L130 BoogieDeclarations]: Found specification of procedure set_4 [2021-03-25 08:04:52,462 INFO L138 BoogieDeclarations]: Found implementation of procedure set_4 [2021-03-25 08:04:52,462 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_0 given in one single declaration [2021-03-25 08:04:52,462 INFO L130 BoogieDeclarations]: Found specification of procedure set_0 [2021-03-25 08:04:52,462 INFO L138 BoogieDeclarations]: Found implementation of procedure set_0 [2021-03-25 08:04:52,462 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-03-25 08:04:52,463 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-25 08:04:52,463 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-25 08:04:52,464 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_5 given in one single declaration [2021-03-25 08:04:52,464 INFO L130 BoogieDeclarations]: Found specification of procedure set_5 [2021-03-25 08:04:52,464 INFO L138 BoogieDeclarations]: Found implementation of procedure set_5 [2021-03-25 08:04:52,464 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_6 given in one single declaration [2021-03-25 08:04:52,464 INFO L130 BoogieDeclarations]: Found specification of procedure set_6 [2021-03-25 08:04:52,465 INFO L138 BoogieDeclarations]: Found implementation of procedure set_6 [2021-03-25 08:04:52,465 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_7 given in one single declaration [2021-03-25 08:04:52,465 INFO L130 BoogieDeclarations]: Found specification of procedure set_7 [2021-03-25 08:04:52,466 INFO L138 BoogieDeclarations]: Found implementation of procedure set_7 [2021-03-25 08:04:52,467 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-25 08:04:52,589 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-25 08:04:52,589 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-03-25 08:04:52,590 INFO L202 PluginConnector]: Adding new model example_8.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.03 08:04:52 BoogieIcfgContainer [2021-03-25 08:04:52,590 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-25 08:04:52,591 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-25 08:04:52,591 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-25 08:04:52,593 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-25 08:04:52,593 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example_8.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.03 08:04:52" (1/2) ... [2021-03-25 08:04:52,593 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50237808 and model type example_8.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.03 08:04:52, skipping insertion in model container [2021-03-25 08:04:52,594 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example_8.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.03 08:04:52" (2/2) ... [2021-03-25 08:04:52,594 INFO L111 eAbstractionObserver]: Analyzing ICFG example_8.bpl [2021-03-25 08:04:52,597 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-25 08:04:52,599 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-25 08:04:52,600 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-25 08:04:52,729 INFO L149 ThreadInstanceAdder]: Constructed 64 joinOtherThreadTransitions. [2021-03-25 08:04:52,741 INFO L253 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2021-03-25 08:04:52,753 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-25 08:04:52,753 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-25 08:04:52,753 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-25 08:04:52,753 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-25 08:04:52,754 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-25 08:04:52,754 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-25 08:04:52,754 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-25 08:04:52,754 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-25 08:04:52,761 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 68 places, 99 transitions, 430 flow [2021-03-25 08:04:52,873 INFO L129 PetriNetUnfolder]: 769/1051 cut-off events. [2021-03-25 08:04:52,873 INFO L130 PetriNetUnfolder]: For 1024/1024 co-relation queries the response was YES. [2021-03-25 08:04:52,879 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2100 conditions, 1051 events. 769/1051 cut-off events. For 1024/1024 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 3895 event pairs, 0 based on Foata normal form. 0/1050 useless extension candidates. Maximal degree in co-relation 933. Up to 280 conditions per place. [2021-03-25 08:04:52,880 INFO L82 GeneralOperation]: Start removeDead. Operand has 68 places, 99 transitions, 430 flow [2021-03-25 08:04:52,895 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 58 places, 89 transitions, 394 flow [2021-03-25 08:04:52,896 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:04:52,902 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 58 places, 89 transitions, 394 flow [2021-03-25 08:04:52,904 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 58 places, 89 transitions, 394 flow [2021-03-25 08:04:52,905 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 58 places, 89 transitions, 394 flow [2021-03-25 08:04:52,963 INFO L129 PetriNetUnfolder]: 769/1049 cut-off events. [2021-03-25 08:04:52,964 INFO L130 PetriNetUnfolder]: For 1024/1024 co-relation queries the response was YES. [2021-03-25 08:04:52,967 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2098 conditions, 1049 events. 769/1049 cut-off events. For 1024/1024 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 3656 event pairs, 0 based on Foata normal form. 0/1049 useless extension candidates. Maximal degree in co-relation 933. Up to 280 conditions per place. [2021-03-25 08:04:52,979 INFO L142 LiptonReduction]: Number of co-enabled transitions 1904 [2021-03-25 08:04:53,066 INFO L154 LiptonReduction]: Checked pairs total: 532 [2021-03-25 08:04:53,067 INFO L156 LiptonReduction]: Total number of compositions: 8 [2021-03-25 08:04:53,068 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 173 [2021-03-25 08:04:53,113 INFO L129 PetriNetUnfolder]: 769/1040 cut-off events. [2021-03-25 08:04:53,114 INFO L130 PetriNetUnfolder]: For 1024/1024 co-relation queries the response was YES. [2021-03-25 08:04:53,114 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:04:53,114 INFO L263 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] [2021-03-25 08:04:53,115 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_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]=== [2021-03-25 08:04:53,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:04:53,118 INFO L82 PathProgramCache]: Analyzing trace with hash 799209287, now seen corresponding path program 1 times [2021-03-25 08:04:53,123 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:04:53,123 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482505525] [2021-03-25 08:04:53,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:04:53,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:04:53,188 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:53,189 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:04:53,195 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:53,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:04:53,199 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:53,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:04:53,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:04:53,201 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1482505525] [2021-03-25 08:04:53,201 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:04:53,201 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 08:04:53,202 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606725820] [2021-03-25 08:04:53,206 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-25 08:04:53,206 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:04:53,213 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-25 08:04:53,214 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-25 08:04:53,215 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 107 [2021-03-25 08:04:53,216 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 81 transitions, 378 flow. Second operand has 3 states, 3 states have (on average 98.66666666666667) internal successors, (296), 3 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:53,216 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:04:53,216 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 107 [2021-03-25 08:04:53,217 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:04:53,302 INFO L129 PetriNetUnfolder]: 475/683 cut-off events. [2021-03-25 08:04:53,303 INFO L130 PetriNetUnfolder]: For 987/987 co-relation queries the response was YES. [2021-03-25 08:04:53,304 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1440 conditions, 683 events. 475/683 cut-off events. For 987/987 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 2782 event pairs, 0 based on Foata normal form. 64/747 useless extension candidates. Maximal degree in co-relation 913. Up to 168 conditions per place. [2021-03-25 08:04:53,308 INFO L132 encePairwiseOnDemand]: 102/107 looper letters, 4 selfloop transitions, 1 changer transitions 0/77 dead transitions. [2021-03-25 08:04:53,308 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 77 transitions, 368 flow [2021-03-25 08:04:53,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 08:04:53,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 08:04:53,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 303 transitions. [2021-03-25 08:04:53,316 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9439252336448598 [2021-03-25 08:04:53,316 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 303 transitions. [2021-03-25 08:04:53,317 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 303 transitions. [2021-03-25 08:04:53,318 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:04:53,319 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 303 transitions. [2021-03-25 08:04:53,321 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 101.0) internal successors, (303), 3 states have internal predecessors, (303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:53,327 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 107.0) internal successors, (428), 4 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:53,327 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 107.0) internal successors, (428), 4 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:53,328 INFO L185 Difference]: Start difference. First operand has 50 places, 81 transitions, 378 flow. Second operand 3 states and 303 transitions. [2021-03-25 08:04:53,329 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 77 transitions, 368 flow [2021-03-25 08:04:53,337 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 77 transitions, 232 flow, removed 0 selfloop flow, removed 16 redundant places. [2021-03-25 08:04:53,345 INFO L241 Difference]: Finished difference. Result has 36 places, 77 transitions, 224 flow [2021-03-25 08:04:53,346 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=222, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=224, PETRI_PLACES=36, PETRI_TRANSITIONS=77} [2021-03-25 08:04:53,346 INFO L343 CegarLoopForPetriNet]: 50 programPoint places, -14 predicate places. [2021-03-25 08:04:53,347 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:04:53,347 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 36 places, 77 transitions, 224 flow [2021-03-25 08:04:53,347 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 36 places, 77 transitions, 224 flow [2021-03-25 08:04:53,348 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 36 places, 77 transitions, 224 flow [2021-03-25 08:04:53,370 INFO L129 PetriNetUnfolder]: 475/683 cut-off events. [2021-03-25 08:04:53,371 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 08:04:53,372 INFO L84 FinitePrefix]: Finished finitePrefix Result has 694 conditions, 683 events. 475/683 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 2536 event pairs, 0 based on Foata normal form. 0/683 useless extension candidates. Maximal degree in co-relation 681. Up to 168 conditions per place. [2021-03-25 08:04:53,375 INFO L142 LiptonReduction]: Number of co-enabled transitions 840 [2021-03-25 08:04:53,383 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:04:53,383 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:04:53,383 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 36 [2021-03-25 08:04:53,385 INFO L480 AbstractCegarLoop]: Abstraction has has 36 places, 77 transitions, 224 flow [2021-03-25 08:04:53,385 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 98.66666666666667) internal successors, (296), 3 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:53,385 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:04:53,385 INFO L263 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] [2021-03-25 08:04:53,386 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-25 08:04:53,386 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_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]=== [2021-03-25 08:04:53,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:04:53,387 INFO L82 PathProgramCache]: Analyzing trace with hash 140970533, now seen corresponding path program 1 times [2021-03-25 08:04:53,387 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:04:53,387 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083666775] [2021-03-25 08:04:53,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:04:53,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:04:53,413 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:53,414 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:04:53,414 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:53,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:04:53,417 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:53,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:04:53,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:04:53,418 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083666775] [2021-03-25 08:04:53,418 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:04:53,418 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 08:04:53,418 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975448961] [2021-03-25 08:04:53,419 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-25 08:04:53,419 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:04:53,420 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-25 08:04:53,420 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-25 08:04:53,420 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 107 [2021-03-25 08:04:53,421 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 77 transitions, 224 flow. Second operand has 3 states, 3 states have (on average 98.66666666666667) internal successors, (296), 3 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:53,421 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:04:53,421 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 107 [2021-03-25 08:04:53,421 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:04:53,449 INFO L129 PetriNetUnfolder]: 214/345 cut-off events. [2021-03-25 08:04:53,449 INFO L130 PetriNetUnfolder]: For 86/86 co-relation queries the response was YES. [2021-03-25 08:04:53,450 INFO L84 FinitePrefix]: Finished finitePrefix Result has 387 conditions, 345 events. 214/345 cut-off events. For 86/86 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1285 event pairs, 0 based on Foata normal form. 57/402 useless extension candidates. Maximal degree in co-relation 373. Up to 63 conditions per place. [2021-03-25 08:04:53,451 INFO L132 encePairwiseOnDemand]: 101/107 looper letters, 3 selfloop transitions, 1 changer transitions 0/72 dead transitions. [2021-03-25 08:04:53,451 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 72 transitions, 217 flow [2021-03-25 08:04:53,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 08:04:53,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 08:04:53,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 303 transitions. [2021-03-25 08:04:53,456 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9439252336448598 [2021-03-25 08:04:53,456 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 303 transitions. [2021-03-25 08:04:53,456 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 303 transitions. [2021-03-25 08:04:53,458 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:04:53,458 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 303 transitions. [2021-03-25 08:04:53,459 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 101.0) internal successors, (303), 3 states have internal predecessors, (303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:53,461 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 107.0) internal successors, (428), 4 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:53,461 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 107.0) internal successors, (428), 4 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:53,461 INFO L185 Difference]: Start difference. First operand has 36 places, 77 transitions, 224 flow. Second operand 3 states and 303 transitions. [2021-03-25 08:04:53,461 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 72 transitions, 217 flow [2021-03-25 08:04:53,463 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 72 transitions, 216 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-25 08:04:53,464 INFO L241 Difference]: Finished difference. Result has 37 places, 72 transitions, 210 flow [2021-03-25 08:04:53,465 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=208, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=210, PETRI_PLACES=37, PETRI_TRANSITIONS=72} [2021-03-25 08:04:53,465 INFO L343 CegarLoopForPetriNet]: 50 programPoint places, -13 predicate places. [2021-03-25 08:04:53,465 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:04:53,465 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 37 places, 72 transitions, 210 flow [2021-03-25 08:04:53,466 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 37 places, 72 transitions, 210 flow [2021-03-25 08:04:53,466 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 37 places, 72 transitions, 210 flow [2021-03-25 08:04:53,480 INFO L129 PetriNetUnfolder]: 214/345 cut-off events. [2021-03-25 08:04:53,480 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 08:04:53,481 INFO L84 FinitePrefix]: Finished finitePrefix Result has 357 conditions, 345 events. 214/345 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1210 event pairs, 0 based on Foata normal form. 0/345 useless extension candidates. Maximal degree in co-relation 344. Up to 63 conditions per place. [2021-03-25 08:04:53,483 INFO L142 LiptonReduction]: Number of co-enabled transitions 770 [2021-03-25 08:04:53,489 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:04:53,489 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:04:53,490 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 25 [2021-03-25 08:04:53,490 INFO L480 AbstractCegarLoop]: Abstraction has has 37 places, 72 transitions, 210 flow [2021-03-25 08:04:53,491 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 98.66666666666667) internal successors, (296), 3 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:53,491 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:04:53,491 INFO L263 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] [2021-03-25 08:04:53,491 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-25 08:04:53,491 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_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]=== [2021-03-25 08:04:53,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:04:53,492 INFO L82 PathProgramCache]: Analyzing trace with hash -1458043723, now seen corresponding path program 1 times [2021-03-25 08:04:53,492 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:04:53,493 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326902635] [2021-03-25 08:04:53,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:04:53,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:04:53,520 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:53,521 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:04:53,522 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:53,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:04:53,525 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:53,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:04:53,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:04:53,525 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326902635] [2021-03-25 08:04:53,525 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:04:53,526 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 08:04:53,526 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825813408] [2021-03-25 08:04:53,526 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-25 08:04:53,526 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:04:53,527 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-25 08:04:53,527 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-25 08:04:53,528 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 107 [2021-03-25 08:04:53,528 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 72 transitions, 210 flow. Second operand has 3 states, 3 states have (on average 98.66666666666667) internal successors, (296), 3 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:53,528 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:04:53,529 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 107 [2021-03-25 08:04:53,529 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:04:53,557 INFO L129 PetriNetUnfolder]: 209/339 cut-off events. [2021-03-25 08:04:53,558 INFO L130 PetriNetUnfolder]: For 45/45 co-relation queries the response was YES. [2021-03-25 08:04:53,558 INFO L84 FinitePrefix]: Finished finitePrefix Result has 397 conditions, 339 events. 209/339 cut-off events. For 45/45 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1280 event pairs, 0 based on Foata normal form. 1/340 useless extension candidates. Maximal degree in co-relation 382. Up to 63 conditions per place. [2021-03-25 08:04:53,560 INFO L132 encePairwiseOnDemand]: 105/107 looper letters, 7 selfloop transitions, 1 changer transitions 0/71 dead transitions. [2021-03-25 08:04:53,560 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 71 transitions, 223 flow [2021-03-25 08:04:53,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 08:04:53,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 08:04:53,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 303 transitions. [2021-03-25 08:04:53,561 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9439252336448598 [2021-03-25 08:04:53,561 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 303 transitions. [2021-03-25 08:04:53,561 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 303 transitions. [2021-03-25 08:04:53,561 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:04:53,561 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 303 transitions. [2021-03-25 08:04:53,562 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 101.0) internal successors, (303), 3 states have internal predecessors, (303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:53,562 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 107.0) internal successors, (428), 4 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:53,562 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 107.0) internal successors, (428), 4 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:53,563 INFO L185 Difference]: Start difference. First operand has 37 places, 72 transitions, 210 flow. Second operand 3 states and 303 transitions. [2021-03-25 08:04:53,563 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 71 transitions, 223 flow [2021-03-25 08:04:53,563 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 71 transitions, 222 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-25 08:04:53,564 INFO L241 Difference]: Finished difference. Result has 38 places, 71 transitions, 208 flow [2021-03-25 08:04:53,564 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=206, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=208, PETRI_PLACES=38, PETRI_TRANSITIONS=71} [2021-03-25 08:04:53,564 INFO L343 CegarLoopForPetriNet]: 50 programPoint places, -12 predicate places. [2021-03-25 08:04:53,564 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:04:53,565 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 38 places, 71 transitions, 208 flow [2021-03-25 08:04:53,565 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 38 places, 71 transitions, 208 flow [2021-03-25 08:04:53,565 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 38 places, 71 transitions, 208 flow [2021-03-25 08:04:53,583 INFO L129 PetriNetUnfolder]: 209/339 cut-off events. [2021-03-25 08:04:53,584 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 08:04:53,584 INFO L84 FinitePrefix]: Finished finitePrefix Result has 352 conditions, 339 events. 209/339 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1176 event pairs, 0 based on Foata normal form. 0/339 useless extension candidates. Maximal degree in co-relation 345. Up to 63 conditions per place. [2021-03-25 08:04:53,585 INFO L142 LiptonReduction]: Number of co-enabled transitions 756 [2021-03-25 08:04:53,590 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:04:53,591 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:04:53,591 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 27 [2021-03-25 08:04:53,592 INFO L480 AbstractCegarLoop]: Abstraction has has 38 places, 71 transitions, 208 flow [2021-03-25 08:04:53,592 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 98.66666666666667) internal successors, (296), 3 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:53,592 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:04:53,592 INFO L263 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] [2021-03-25 08:04:53,592 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-25 08:04:53,593 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_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]=== [2021-03-25 08:04:53,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:04:53,593 INFO L82 PathProgramCache]: Analyzing trace with hash 779424171, now seen corresponding path program 1 times [2021-03-25 08:04:53,593 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:04:53,595 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491846478] [2021-03-25 08:04:53,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:04:53,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:04:53,632 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:53,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:04:53,634 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:53,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:04:53,638 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:53,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:04:53,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:04:53,638 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1491846478] [2021-03-25 08:04:53,639 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:04:53,639 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 08:04:53,639 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583261630] [2021-03-25 08:04:53,639 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-25 08:04:53,639 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:04:53,639 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-25 08:04:53,639 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-25 08:04:53,640 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 107 [2021-03-25 08:04:53,640 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 71 transitions, 208 flow. Second operand has 3 states, 3 states have (on average 98.66666666666667) internal successors, (296), 3 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:53,640 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:04:53,640 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 107 [2021-03-25 08:04:53,640 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:04:53,665 INFO L129 PetriNetUnfolder]: 185/309 cut-off events. [2021-03-25 08:04:53,665 INFO L130 PetriNetUnfolder]: For 44/44 co-relation queries the response was YES. [2021-03-25 08:04:53,666 INFO L84 FinitePrefix]: Finished finitePrefix Result has 363 conditions, 309 events. 185/309 cut-off events. For 44/44 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1139 event pairs, 0 based on Foata normal form. 5/314 useless extension candidates. Maximal degree in co-relation 355. Up to 63 conditions per place. [2021-03-25 08:04:53,667 INFO L132 encePairwiseOnDemand]: 104/107 looper letters, 6 selfloop transitions, 1 changer transitions 0/69 dead transitions. [2021-03-25 08:04:53,667 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 69 transitions, 216 flow [2021-03-25 08:04:53,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 08:04:53,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 08:04:53,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 303 transitions. [2021-03-25 08:04:53,668 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9439252336448598 [2021-03-25 08:04:53,668 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 303 transitions. [2021-03-25 08:04:53,668 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 303 transitions. [2021-03-25 08:04:53,668 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:04:53,668 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 303 transitions. [2021-03-25 08:04:53,669 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 101.0) internal successors, (303), 3 states have internal predecessors, (303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:53,670 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 107.0) internal successors, (428), 4 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:53,670 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 107.0) internal successors, (428), 4 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:53,670 INFO L185 Difference]: Start difference. First operand has 38 places, 71 transitions, 208 flow. Second operand 3 states and 303 transitions. [2021-03-25 08:04:53,670 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 69 transitions, 216 flow [2021-03-25 08:04:53,671 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 69 transitions, 215 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-25 08:04:53,673 INFO L241 Difference]: Finished difference. Result has 39 places, 69 transitions, 203 flow [2021-03-25 08:04:53,673 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=201, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=203, PETRI_PLACES=39, PETRI_TRANSITIONS=69} [2021-03-25 08:04:53,673 INFO L343 CegarLoopForPetriNet]: 50 programPoint places, -11 predicate places. [2021-03-25 08:04:53,673 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:04:53,673 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 39 places, 69 transitions, 203 flow [2021-03-25 08:04:53,674 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 39 places, 69 transitions, 203 flow [2021-03-25 08:04:53,674 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 39 places, 69 transitions, 203 flow [2021-03-25 08:04:53,686 INFO L129 PetriNetUnfolder]: 185/309 cut-off events. [2021-03-25 08:04:53,686 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 08:04:53,687 INFO L84 FinitePrefix]: Finished finitePrefix Result has 323 conditions, 309 events. 185/309 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1066 event pairs, 0 based on Foata normal form. 0/309 useless extension candidates. Maximal degree in co-relation 316. Up to 63 conditions per place. [2021-03-25 08:04:53,688 INFO L142 LiptonReduction]: Number of co-enabled transitions 728 [2021-03-25 08:04:53,693 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:04:53,693 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:04:53,694 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 21 [2021-03-25 08:04:53,694 INFO L480 AbstractCegarLoop]: Abstraction has has 39 places, 69 transitions, 203 flow [2021-03-25 08:04:53,695 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 98.66666666666667) internal successors, (296), 3 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:53,695 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:04:53,695 INFO L263 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] [2021-03-25 08:04:53,695 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-25 08:04:53,695 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_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]=== [2021-03-25 08:04:53,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:04:53,695 INFO L82 PathProgramCache]: Analyzing trace with hash 394116671, now seen corresponding path program 1 times [2021-03-25 08:04:53,695 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:04:53,695 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250456365] [2021-03-25 08:04:53,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:04:53,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:04:53,723 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:53,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:04:53,724 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:53,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:04:53,726 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:53,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:04:53,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:04:53,727 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [250456365] [2021-03-25 08:04:53,727 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:04:53,727 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 08:04:53,727 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789677513] [2021-03-25 08:04:53,727 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-25 08:04:53,727 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:04:53,728 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-25 08:04:53,728 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-25 08:04:53,728 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 107 [2021-03-25 08:04:53,729 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 69 transitions, 203 flow. Second operand has 3 states, 3 states have (on average 98.66666666666667) internal successors, (296), 3 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:53,729 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:04:53,729 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 107 [2021-03-25 08:04:53,729 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:04:53,740 INFO L129 PetriNetUnfolder]: 48/111 cut-off events. [2021-03-25 08:04:53,741 INFO L130 PetriNetUnfolder]: For 39/39 co-relation queries the response was YES. [2021-03-25 08:04:53,741 INFO L84 FinitePrefix]: Finished finitePrefix Result has 135 conditions, 111 events. 48/111 cut-off events. For 39/39 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 316 event pairs, 0 based on Foata normal form. 31/142 useless extension candidates. Maximal degree in co-relation 127. Up to 20 conditions per place. [2021-03-25 08:04:53,741 INFO L132 encePairwiseOnDemand]: 100/107 looper letters, 2 selfloop transitions, 1 changer transitions 0/63 dead transitions. [2021-03-25 08:04:53,741 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 63 transitions, 191 flow [2021-03-25 08:04:53,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 08:04:53,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 08:04:53,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 303 transitions. [2021-03-25 08:04:53,742 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9439252336448598 [2021-03-25 08:04:53,743 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 303 transitions. [2021-03-25 08:04:53,743 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 303 transitions. [2021-03-25 08:04:53,743 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:04:53,743 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 303 transitions. [2021-03-25 08:04:53,744 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 101.0) internal successors, (303), 3 states have internal predecessors, (303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:53,744 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 107.0) internal successors, (428), 4 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:53,745 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 107.0) internal successors, (428), 4 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:53,745 INFO L185 Difference]: Start difference. First operand has 39 places, 69 transitions, 203 flow. Second operand 3 states and 303 transitions. [2021-03-25 08:04:53,745 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 63 transitions, 191 flow [2021-03-25 08:04:53,745 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 63 transitions, 190 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-25 08:04:53,746 INFO L241 Difference]: Finished difference. Result has 40 places, 63 transitions, 186 flow [2021-03-25 08:04:53,746 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=184, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=186, PETRI_PLACES=40, PETRI_TRANSITIONS=63} [2021-03-25 08:04:53,746 INFO L343 CegarLoopForPetriNet]: 50 programPoint places, -10 predicate places. [2021-03-25 08:04:53,746 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:04:53,746 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 40 places, 63 transitions, 186 flow [2021-03-25 08:04:53,747 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 40 places, 63 transitions, 186 flow [2021-03-25 08:04:53,747 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 40 places, 63 transitions, 186 flow [2021-03-25 08:04:53,751 INFO L129 PetriNetUnfolder]: 48/111 cut-off events. [2021-03-25 08:04:53,751 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 08:04:53,752 INFO L84 FinitePrefix]: Finished finitePrefix Result has 126 conditions, 111 events. 48/111 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 284 event pairs, 0 based on Foata normal form. 0/111 useless extension candidates. Maximal degree in co-relation 119. Up to 20 conditions per place. [2021-03-25 08:04:53,752 INFO L142 LiptonReduction]: Number of co-enabled transitions 460 [2021-03-25 08:04:53,756 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:04:53,756 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:04:53,756 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 10 [2021-03-25 08:04:53,758 INFO L480 AbstractCegarLoop]: Abstraction has has 40 places, 63 transitions, 186 flow [2021-03-25 08:04:53,758 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 98.66666666666667) internal successors, (296), 3 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:53,758 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:04:53,758 INFO L263 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] [2021-03-25 08:04:53,758 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-25 08:04:53,758 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_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]=== [2021-03-25 08:04:53,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:04:53,759 INFO L82 PathProgramCache]: Analyzing trace with hash -2118826737, now seen corresponding path program 1 times [2021-03-25 08:04:53,759 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:04:53,759 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506516748] [2021-03-25 08:04:53,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:04:53,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:04:53,784 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:53,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:04:53,787 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:53,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:04:53,791 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:53,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:04:53,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:04:53,791 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506516748] [2021-03-25 08:04:53,791 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:04:53,791 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 08:04:53,791 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137843916] [2021-03-25 08:04:53,792 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-25 08:04:53,792 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:04:53,792 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-25 08:04:53,792 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-25 08:04:53,792 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 107 [2021-03-25 08:04:53,793 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 63 transitions, 186 flow. Second operand has 3 states, 3 states have (on average 98.66666666666667) internal successors, (296), 3 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:53,793 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:04:53,793 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 107 [2021-03-25 08:04:53,793 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:04:53,803 INFO L129 PetriNetUnfolder]: 6/37 cut-off events. [2021-03-25 08:04:53,803 INFO L130 PetriNetUnfolder]: For 14/14 co-relation queries the response was YES. [2021-03-25 08:04:53,803 INFO L84 FinitePrefix]: Finished finitePrefix Result has 55 conditions, 37 events. 6/37 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 47 event pairs, 0 based on Foata normal form. 13/50 useless extension candidates. Maximal degree in co-relation 47. Up to 6 conditions per place. [2021-03-25 08:04:53,803 INFO L132 encePairwiseOnDemand]: 99/107 looper letters, 1 selfloop transitions, 1 changer transitions 0/34 dead transitions. [2021-03-25 08:04:53,803 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 34 transitions, 103 flow [2021-03-25 08:04:53,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 08:04:53,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 08:04:53,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 303 transitions. [2021-03-25 08:04:53,805 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9439252336448598 [2021-03-25 08:04:53,805 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 303 transitions. [2021-03-25 08:04:53,805 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 303 transitions. [2021-03-25 08:04:53,805 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:04:53,805 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 303 transitions. [2021-03-25 08:04:53,806 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 101.0) internal successors, (303), 3 states have internal predecessors, (303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:53,806 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 107.0) internal successors, (428), 4 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:53,806 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 107.0) internal successors, (428), 4 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:53,806 INFO L185 Difference]: Start difference. First operand has 40 places, 63 transitions, 186 flow. Second operand 3 states and 303 transitions. [2021-03-25 08:04:53,806 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 34 transitions, 103 flow [2021-03-25 08:04:53,807 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 34 transitions, 102 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-25 08:04:53,808 INFO L241 Difference]: Finished difference. Result has 41 places, 34 transitions, 100 flow [2021-03-25 08:04:53,808 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=100, PETRI_PLACES=41, PETRI_TRANSITIONS=34} [2021-03-25 08:04:53,808 INFO L343 CegarLoopForPetriNet]: 50 programPoint places, -9 predicate places. [2021-03-25 08:04:53,808 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:04:53,808 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 41 places, 34 transitions, 100 flow [2021-03-25 08:04:53,809 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 41 places, 34 transitions, 100 flow [2021-03-25 08:04:53,809 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 41 places, 34 transitions, 100 flow [2021-03-25 08:04:53,811 INFO L129 PetriNetUnfolder]: 6/37 cut-off events. [2021-03-25 08:04:53,812 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 08:04:53,812 INFO L84 FinitePrefix]: Finished finitePrefix Result has 53 conditions, 37 events. 6/37 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 47 event pairs, 0 based on Foata normal form. 0/37 useless extension candidates. Maximal degree in co-relation 46. Up to 6 conditions per place. [2021-03-25 08:04:53,812 INFO L142 LiptonReduction]: Number of co-enabled transitions 266 [2021-03-25 08:04:53,813 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:04:53,813 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:04:53,813 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 5 [2021-03-25 08:04:53,814 INFO L480 AbstractCegarLoop]: Abstraction has has 41 places, 34 transitions, 100 flow [2021-03-25 08:04:53,815 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 98.66666666666667) internal successors, (296), 3 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:53,815 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:04:53,815 INFO L263 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] [2021-03-25 08:04:53,815 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-25 08:04:53,815 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_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]=== [2021-03-25 08:04:53,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:04:53,815 INFO L82 PathProgramCache]: Analyzing trace with hash 485427359, now seen corresponding path program 1 times [2021-03-25 08:04:53,815 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:04:53,816 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110332210] [2021-03-25 08:04:53,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:04:53,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:04:53,868 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:53,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:04:53,873 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:53,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:04:53,877 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:53,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:04:53,887 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-25 08:04:53,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 08:04:53,910 INFO L142 QuantifierPusher]: treesize reduction 9, result has 78.6 percent of original size [2021-03-25 08:04:53,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 08:04:53,938 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-25 08:04:53,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-25 08:04:53,974 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-25 08:04:53,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-25 08:04:54,002 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-25 08:04:54,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-25 08:04:54,034 INFO L142 QuantifierPusher]: treesize reduction 63, result has 47.5 percent of original size [2021-03-25 08:04:54,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-25 08:04:54,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:04:54,061 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110332210] [2021-03-25 08:04:54,061 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:04:54,061 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 08:04:54,061 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307299800] [2021-03-25 08:04:54,062 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 08:04:54,062 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:04:54,062 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 08:04:54,062 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-03-25 08:04:54,063 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 107 [2021-03-25 08:04:54,063 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 34 transitions, 100 flow. Second operand has 10 states, 10 states have (on average 89.9) internal successors, (899), 10 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:54,063 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:04:54,063 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 107 [2021-03-25 08:04:54,064 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:04:54,228 INFO L129 PetriNetUnfolder]: 1122/1869 cut-off events. [2021-03-25 08:04:54,229 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 08:04:54,233 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3238 conditions, 1869 events. 1122/1869 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 168. Compared 10591 event pairs, 321 based on Foata normal form. 1/1762 useless extension candidates. Maximal degree in co-relation 3230. Up to 513 conditions per place. [2021-03-25 08:04:54,239 INFO L132 encePairwiseOnDemand]: 98/107 looper letters, 35 selfloop transitions, 8 changer transitions 0/68 dead transitions. [2021-03-25 08:04:54,239 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 68 transitions, 254 flow [2021-03-25 08:04:54,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 08:04:54,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 08:04:54,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 934 transitions. [2021-03-25 08:04:54,241 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8728971962616823 [2021-03-25 08:04:54,242 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 934 transitions. [2021-03-25 08:04:54,242 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 934 transitions. [2021-03-25 08:04:54,242 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:04:54,242 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 934 transitions. [2021-03-25 08:04:54,243 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 93.4) internal successors, (934), 10 states have internal predecessors, (934), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:54,244 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 107.0) internal successors, (1177), 11 states have internal predecessors, (1177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:54,245 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 107.0) internal successors, (1177), 11 states have internal predecessors, (1177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:54,245 INFO L185 Difference]: Start difference. First operand has 41 places, 34 transitions, 100 flow. Second operand 10 states and 934 transitions. [2021-03-25 08:04:54,245 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 68 transitions, 254 flow [2021-03-25 08:04:54,245 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 68 transitions, 253 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-25 08:04:54,246 INFO L241 Difference]: Finished difference. Result has 57 places, 41 transitions, 160 flow [2021-03-25 08:04:54,246 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=99, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=160, PETRI_PLACES=57, PETRI_TRANSITIONS=41} [2021-03-25 08:04:54,247 INFO L343 CegarLoopForPetriNet]: 50 programPoint places, 7 predicate places. [2021-03-25 08:04:54,247 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:04:54,247 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 57 places, 41 transitions, 160 flow [2021-03-25 08:04:54,247 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 57 places, 41 transitions, 160 flow [2021-03-25 08:04:54,247 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 57 places, 41 transitions, 160 flow [2021-03-25 08:04:54,253 INFO L129 PetriNetUnfolder]: 33/148 cut-off events. [2021-03-25 08:04:54,253 INFO L130 PetriNetUnfolder]: For 15/15 co-relation queries the response was YES. [2021-03-25 08:04:54,253 INFO L84 FinitePrefix]: Finished finitePrefix Result has 214 conditions, 148 events. 33/148 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 688 event pairs, 0 based on Foata normal form. 0/134 useless extension candidates. Maximal degree in co-relation 199. Up to 32 conditions per place. [2021-03-25 08:04:54,254 INFO L142 LiptonReduction]: Number of co-enabled transitions 416 [2021-03-25 08:04:54,256 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:04:54,256 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:04:54,256 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 9 [2021-03-25 08:04:54,257 INFO L480 AbstractCegarLoop]: Abstraction has has 57 places, 41 transitions, 160 flow [2021-03-25 08:04:54,257 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 89.9) internal successors, (899), 10 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:54,257 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:04:54,257 INFO L263 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] [2021-03-25 08:04:54,257 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-25 08:04:54,257 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_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]=== [2021-03-25 08:04:54,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:04:54,258 INFO L82 PathProgramCache]: Analyzing trace with hash -800180707, now seen corresponding path program 2 times [2021-03-25 08:04:54,258 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:04:54,258 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109141933] [2021-03-25 08:04:54,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:04:54,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:04:54,282 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:54,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:04:54,282 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:54,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:04:54,320 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:54,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:04:54,346 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-25 08:04:54,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 08:04:54,357 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-25 08:04:54,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 08:04:54,371 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-25 08:04:54,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 08:04:54,390 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-25 08:04:54,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-25 08:04:54,415 INFO L142 QuantifierPusher]: treesize reduction 54, result has 50.5 percent of original size [2021-03-25 08:04:54,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-25 08:04:54,445 INFO L142 QuantifierPusher]: treesize reduction 63, result has 47.5 percent of original size [2021-03-25 08:04:54,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-25 08:04:54,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:04:54,471 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109141933] [2021-03-25 08:04:54,471 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:04:54,471 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 08:04:54,472 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609906291] [2021-03-25 08:04:54,472 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 08:04:54,472 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:04:54,472 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 08:04:54,472 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-03-25 08:04:54,473 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 107 [2021-03-25 08:04:54,474 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 41 transitions, 160 flow. Second operand has 10 states, 10 states have (on average 89.9) internal successors, (899), 10 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:54,474 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:04:54,474 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 107 [2021-03-25 08:04:54,474 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:04:54,714 INFO L129 PetriNetUnfolder]: 1644/3210 cut-off events. [2021-03-25 08:04:54,714 INFO L130 PetriNetUnfolder]: For 2365/2433 co-relation queries the response was YES. [2021-03-25 08:04:54,724 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6953 conditions, 3210 events. 1644/3210 cut-off events. For 2365/2433 co-relation queries the response was YES. Maximal size of possible extension queue 304. Compared 24697 event pairs, 387 based on Foata normal form. 1/3076 useless extension candidates. Maximal degree in co-relation 6937. Up to 683 conditions per place. [2021-03-25 08:04:54,736 INFO L132 encePairwiseOnDemand]: 98/107 looper letters, 53 selfloop transitions, 13 changer transitions 0/91 dead transitions. [2021-03-25 08:04:54,736 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 91 transitions, 531 flow [2021-03-25 08:04:54,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 08:04:54,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 08:04:54,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 934 transitions. [2021-03-25 08:04:54,738 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8728971962616823 [2021-03-25 08:04:54,738 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 934 transitions. [2021-03-25 08:04:54,739 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 934 transitions. [2021-03-25 08:04:54,739 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:04:54,739 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 934 transitions. [2021-03-25 08:04:54,740 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 93.4) internal successors, (934), 10 states have internal predecessors, (934), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:54,742 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 107.0) internal successors, (1177), 11 states have internal predecessors, (1177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:54,742 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 107.0) internal successors, (1177), 11 states have internal predecessors, (1177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:54,742 INFO L185 Difference]: Start difference. First operand has 57 places, 41 transitions, 160 flow. Second operand 10 states and 934 transitions. [2021-03-25 08:04:54,742 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 91 transitions, 531 flow [2021-03-25 08:04:54,745 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 91 transitions, 523 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-25 08:04:54,746 INFO L241 Difference]: Finished difference. Result has 73 places, 52 transitions, 285 flow [2021-03-25 08:04:54,746 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=159, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=285, PETRI_PLACES=73, PETRI_TRANSITIONS=52} [2021-03-25 08:04:54,746 INFO L343 CegarLoopForPetriNet]: 50 programPoint places, 23 predicate places. [2021-03-25 08:04:54,746 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:04:54,746 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 73 places, 52 transitions, 285 flow [2021-03-25 08:04:54,746 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 73 places, 52 transitions, 285 flow [2021-03-25 08:04:54,747 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 73 places, 52 transitions, 285 flow [2021-03-25 08:04:54,769 INFO L129 PetriNetUnfolder]: 112/461 cut-off events. [2021-03-25 08:04:54,769 INFO L130 PetriNetUnfolder]: For 174/183 co-relation queries the response was YES. [2021-03-25 08:04:54,770 INFO L84 FinitePrefix]: Finished finitePrefix Result has 698 conditions, 461 events. 112/461 cut-off events. For 174/183 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 3422 event pairs, 0 based on Foata normal form. 0/399 useless extension candidates. Maximal degree in co-relation 675. Up to 106 conditions per place. [2021-03-25 08:04:54,772 INFO L142 LiptonReduction]: Number of co-enabled transitions 638 [2021-03-25 08:04:54,776 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:04:54,776 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:04:54,776 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 30 [2021-03-25 08:04:54,779 INFO L480 AbstractCegarLoop]: Abstraction has has 73 places, 52 transitions, 285 flow [2021-03-25 08:04:54,780 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 89.9) internal successors, (899), 10 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:54,780 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:04:54,780 INFO L263 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] [2021-03-25 08:04:54,780 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-25 08:04:54,780 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_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]=== [2021-03-25 08:04:54,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:04:54,780 INFO L82 PathProgramCache]: Analyzing trace with hash 577942889, now seen corresponding path program 3 times [2021-03-25 08:04:54,780 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:04:54,780 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427592086] [2021-03-25 08:04:54,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:04:54,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:04:54,818 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:54,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:04:54,819 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:54,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:04:54,826 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:54,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:04:54,835 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-25 08:04:54,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 08:04:54,850 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-25 08:04:54,851 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 08:04:54,868 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-25 08:04:54,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 08:04:54,896 INFO L142 QuantifierPusher]: treesize reduction 45, result has 51.1 percent of original size [2021-03-25 08:04:54,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-25 08:04:54,939 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-25 08:04:54,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-25 08:04:54,974 INFO L142 QuantifierPusher]: treesize reduction 63, result has 47.5 percent of original size [2021-03-25 08:04:54,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-25 08:04:55,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:04:55,010 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427592086] [2021-03-25 08:04:55,010 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:04:55,010 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 08:04:55,010 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672056998] [2021-03-25 08:04:55,011 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 08:04:55,011 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:04:55,011 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 08:04:55,012 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-03-25 08:04:55,013 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 107 [2021-03-25 08:04:55,013 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 52 transitions, 285 flow. Second operand has 10 states, 10 states have (on average 89.9) internal successors, (899), 10 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:55,013 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:04:55,013 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 107 [2021-03-25 08:04:55,013 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:04:55,398 INFO L129 PetriNetUnfolder]: 2188/4661 cut-off events. [2021-03-25 08:04:55,399 INFO L130 PetriNetUnfolder]: For 8638/8771 co-relation queries the response was YES. [2021-03-25 08:04:55,419 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12216 conditions, 4661 events. 2188/4661 cut-off events. For 8638/8771 co-relation queries the response was YES. Maximal size of possible extension queue 502. Compared 41739 event pairs, 451 based on Foata normal form. 1/4461 useless extension candidates. Maximal degree in co-relation 12192. Up to 948 conditions per place. [2021-03-25 08:04:55,437 INFO L132 encePairwiseOnDemand]: 98/107 looper letters, 68 selfloop transitions, 23 changer transitions 0/116 dead transitions. [2021-03-25 08:04:55,438 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 116 transitions, 928 flow [2021-03-25 08:04:55,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 08:04:55,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 08:04:55,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 934 transitions. [2021-03-25 08:04:55,439 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8728971962616823 [2021-03-25 08:04:55,440 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 934 transitions. [2021-03-25 08:04:55,440 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 934 transitions. [2021-03-25 08:04:55,440 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:04:55,440 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 934 transitions. [2021-03-25 08:04:55,442 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 93.4) internal successors, (934), 10 states have internal predecessors, (934), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:55,443 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 107.0) internal successors, (1177), 11 states have internal predecessors, (1177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:55,443 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 107.0) internal successors, (1177), 11 states have internal predecessors, (1177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:55,443 INFO L185 Difference]: Start difference. First operand has 73 places, 52 transitions, 285 flow. Second operand 10 states and 934 transitions. [2021-03-25 08:04:55,443 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 116 transitions, 928 flow [2021-03-25 08:04:55,456 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 116 transitions, 911 flow, removed 4 selfloop flow, removed 1 redundant places. [2021-03-25 08:04:55,458 INFO L241 Difference]: Finished difference. Result has 89 places, 72 transitions, 562 flow [2021-03-25 08:04:55,458 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=279, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=562, PETRI_PLACES=89, PETRI_TRANSITIONS=72} [2021-03-25 08:04:55,458 INFO L343 CegarLoopForPetriNet]: 50 programPoint places, 39 predicate places. [2021-03-25 08:04:55,458 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:04:55,458 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 89 places, 72 transitions, 562 flow [2021-03-25 08:04:55,458 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 89 places, 72 transitions, 562 flow [2021-03-25 08:04:55,459 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 89 places, 72 transitions, 562 flow [2021-03-25 08:04:55,517 INFO L129 PetriNetUnfolder]: 264/1028 cut-off events. [2021-03-25 08:04:55,518 INFO L130 PetriNetUnfolder]: For 832/910 co-relation queries the response was YES. [2021-03-25 08:04:55,521 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1674 conditions, 1028 events. 264/1028 cut-off events. For 832/910 co-relation queries the response was YES. Maximal size of possible extension queue 166. Compared 9407 event pairs, 0 based on Foata normal form. 0/896 useless extension candidates. Maximal degree in co-relation 1643. Up to 248 conditions per place. [2021-03-25 08:04:55,546 INFO L142 LiptonReduction]: Number of co-enabled transitions 1016 [2021-03-25 08:04:55,552 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:04:55,552 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:04:55,552 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 94 [2021-03-25 08:04:55,552 INFO L480 AbstractCegarLoop]: Abstraction has has 89 places, 72 transitions, 562 flow [2021-03-25 08:04:55,553 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 89.9) internal successors, (899), 10 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:55,553 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:04:55,553 INFO L263 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] [2021-03-25 08:04:55,553 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-03-25 08:04:55,554 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_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]=== [2021-03-25 08:04:55,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:04:55,554 INFO L82 PathProgramCache]: Analyzing trace with hash 1696932537, now seen corresponding path program 4 times [2021-03-25 08:04:55,554 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:04:55,555 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135737803] [2021-03-25 08:04:55,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:04:55,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:04:55,590 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:55,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:04:55,591 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:55,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:04:55,595 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:55,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:04:55,603 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:55,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 08:04:55,613 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-25 08:04:55,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 08:04:55,628 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-25 08:04:55,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-25 08:04:55,648 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-25 08:04:55,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-25 08:04:55,674 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-25 08:04:55,674 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-25 08:04:55,704 INFO L142 QuantifierPusher]: treesize reduction 63, result has 47.5 percent of original size [2021-03-25 08:04:55,705 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-25 08:04:55,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:04:55,732 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135737803] [2021-03-25 08:04:55,732 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:04:55,732 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 08:04:55,733 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852725918] [2021-03-25 08:04:55,733 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 08:04:55,733 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:04:55,734 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 08:04:55,734 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-03-25 08:04:55,734 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 107 [2021-03-25 08:04:55,735 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 72 transitions, 562 flow. Second operand has 10 states, 10 states have (on average 89.9) internal successors, (899), 10 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:55,735 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:04:55,735 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 107 [2021-03-25 08:04:55,735 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:04:56,230 INFO L129 PetriNetUnfolder]: 2435/5318 cut-off events. [2021-03-25 08:04:56,230 INFO L130 PetriNetUnfolder]: For 17874/18398 co-relation queries the response was YES. [2021-03-25 08:04:56,253 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16488 conditions, 5318 events. 2435/5318 cut-off events. For 17874/18398 co-relation queries the response was YES. Maximal size of possible extension queue 596. Compared 48719 event pairs, 533 based on Foata normal form. 1/5113 useless extension candidates. Maximal degree in co-relation 16456. Up to 1130 conditions per place. [2021-03-25 08:04:56,282 INFO L132 encePairwiseOnDemand]: 98/107 looper letters, 86 selfloop transitions, 29 changer transitions 0/140 dead transitions. [2021-03-25 08:04:56,282 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 140 transitions, 1420 flow [2021-03-25 08:04:56,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 08:04:56,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 08:04:56,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 934 transitions. [2021-03-25 08:04:56,284 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8728971962616823 [2021-03-25 08:04:56,284 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 934 transitions. [2021-03-25 08:04:56,284 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 934 transitions. [2021-03-25 08:04:56,285 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:04:56,285 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 934 transitions. [2021-03-25 08:04:56,286 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 93.4) internal successors, (934), 10 states have internal predecessors, (934), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:56,287 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 107.0) internal successors, (1177), 11 states have internal predecessors, (1177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:56,287 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 107.0) internal successors, (1177), 11 states have internal predecessors, (1177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:56,287 INFO L185 Difference]: Start difference. First operand has 89 places, 72 transitions, 562 flow. Second operand 10 states and 934 transitions. [2021-03-25 08:04:56,287 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 140 transitions, 1420 flow [2021-03-25 08:04:56,306 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 140 transitions, 1397 flow, removed 6 selfloop flow, removed 1 redundant places. [2021-03-25 08:04:56,308 INFO L241 Difference]: Finished difference. Result has 105 places, 91 transitions, 879 flow [2021-03-25 08:04:56,309 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=553, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=879, PETRI_PLACES=105, PETRI_TRANSITIONS=91} [2021-03-25 08:04:56,309 INFO L343 CegarLoopForPetriNet]: 50 programPoint places, 55 predicate places. [2021-03-25 08:04:56,309 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:04:56,309 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 105 places, 91 transitions, 879 flow [2021-03-25 08:04:56,309 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 105 places, 91 transitions, 879 flow [2021-03-25 08:04:56,310 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 105 places, 91 transitions, 879 flow [2021-03-25 08:04:56,392 INFO L129 PetriNetUnfolder]: 368/1412 cut-off events. [2021-03-25 08:04:56,392 INFO L130 PetriNetUnfolder]: For 1898/2053 co-relation queries the response was YES. [2021-03-25 08:04:56,398 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2527 conditions, 1412 events. 368/1412 cut-off events. For 1898/2053 co-relation queries the response was YES. Maximal size of possible extension queue 233. Compared 13964 event pairs, 0 based on Foata normal form. 0/1250 useless extension candidates. Maximal degree in co-relation 2488. Up to 350 conditions per place. [2021-03-25 08:04:56,409 INFO L142 LiptonReduction]: Number of co-enabled transitions 1324 [2021-03-25 08:04:56,468 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:04:56,468 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:04:56,468 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 159 [2021-03-25 08:04:56,469 INFO L480 AbstractCegarLoop]: Abstraction has has 105 places, 91 transitions, 879 flow [2021-03-25 08:04:56,469 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 89.9) internal successors, (899), 10 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:56,469 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:04:56,469 INFO L263 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] [2021-03-25 08:04:56,469 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-03-25 08:04:56,469 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_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]=== [2021-03-25 08:04:56,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:04:56,469 INFO L82 PathProgramCache]: Analyzing trace with hash -1265189545, now seen corresponding path program 5 times [2021-03-25 08:04:56,469 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:04:56,470 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428530497] [2021-03-25 08:04:56,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:04:56,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:04:56,486 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:56,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:04:56,486 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:56,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:04:56,490 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:56,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:04:56,496 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-25 08:04:56,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 08:04:56,506 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-25 08:04:56,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 08:04:56,520 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-25 08:04:56,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 08:04:56,537 INFO L142 QuantifierPusher]: treesize reduction 45, result has 51.1 percent of original size [2021-03-25 08:04:56,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-25 08:04:56,563 INFO L142 QuantifierPusher]: treesize reduction 54, result has 50.5 percent of original size [2021-03-25 08:04:56,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-25 08:04:56,594 INFO L142 QuantifierPusher]: treesize reduction 63, result has 47.5 percent of original size [2021-03-25 08:04:56,594 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-25 08:04:56,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:04:56,621 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428530497] [2021-03-25 08:04:56,621 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:04:56,621 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 08:04:56,621 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911101267] [2021-03-25 08:04:56,622 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 08:04:56,622 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:04:56,622 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 08:04:56,622 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-03-25 08:04:56,623 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 107 [2021-03-25 08:04:56,624 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 91 transitions, 879 flow. Second operand has 10 states, 10 states have (on average 89.9) internal successors, (899), 10 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:56,624 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:04:56,624 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 107 [2021-03-25 08:04:56,624 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:04:57,569 INFO L129 PetriNetUnfolder]: 4217/10029 cut-off events. [2021-03-25 08:04:57,570 INFO L130 PetriNetUnfolder]: For 40017/40880 co-relation queries the response was YES. [2021-03-25 08:04:57,624 INFO L84 FinitePrefix]: Finished finitePrefix Result has 28916 conditions, 10029 events. 4217/10029 cut-off events. For 40017/40880 co-relation queries the response was YES. Maximal size of possible extension queue 1381. Compared 111689 event pairs, 611 based on Foata normal form. 2/9501 useless extension candidates. Maximal degree in co-relation 28876. Up to 2199 conditions per place. [2021-03-25 08:04:57,662 INFO L132 encePairwiseOnDemand]: 98/107 looper letters, 100 selfloop transitions, 49 changer transitions 0/174 dead transitions. [2021-03-25 08:04:57,663 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 174 transitions, 2145 flow [2021-03-25 08:04:57,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 08:04:57,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 08:04:57,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 934 transitions. [2021-03-25 08:04:57,665 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8728971962616823 [2021-03-25 08:04:57,665 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 934 transitions. [2021-03-25 08:04:57,665 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 934 transitions. [2021-03-25 08:04:57,665 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:04:57,665 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 934 transitions. [2021-03-25 08:04:57,666 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 93.4) internal successors, (934), 10 states have internal predecessors, (934), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:57,668 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 107.0) internal successors, (1177), 11 states have internal predecessors, (1177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:57,668 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 107.0) internal successors, (1177), 11 states have internal predecessors, (1177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:57,668 INFO L185 Difference]: Start difference. First operand has 105 places, 91 transitions, 879 flow. Second operand 10 states and 934 transitions. [2021-03-25 08:04:57,669 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 174 transitions, 2145 flow [2021-03-25 08:04:57,717 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 174 transitions, 2053 flow, removed 37 selfloop flow, removed 1 redundant places. [2021-03-25 08:04:57,720 INFO L241 Difference]: Finished difference. Result has 121 places, 124 transitions, 1471 flow [2021-03-25 08:04:57,720 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=835, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1471, PETRI_PLACES=121, PETRI_TRANSITIONS=124} [2021-03-25 08:04:57,720 INFO L343 CegarLoopForPetriNet]: 50 programPoint places, 71 predicate places. [2021-03-25 08:04:57,720 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:04:57,721 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 121 places, 124 transitions, 1471 flow [2021-03-25 08:04:57,721 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 121 places, 124 transitions, 1471 flow [2021-03-25 08:04:57,723 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 121 places, 124 transitions, 1471 flow [2021-03-25 08:04:57,966 INFO L129 PetriNetUnfolder]: 590/2444 cut-off events. [2021-03-25 08:04:57,966 INFO L130 PetriNetUnfolder]: For 5604/5905 co-relation queries the response was YES. [2021-03-25 08:04:57,979 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4977 conditions, 2444 events. 590/2444 cut-off events. For 5604/5905 co-relation queries the response was YES. Maximal size of possible extension queue 387. Compared 27626 event pairs, 0 based on Foata normal form. 11/2202 useless extension candidates. Maximal degree in co-relation 4930. Up to 584 conditions per place. [2021-03-25 08:04:58,000 INFO L142 LiptonReduction]: Number of co-enabled transitions 1890 [2021-03-25 08:04:58,010 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:04:58,011 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:04:58,011 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 291 [2021-03-25 08:04:58,011 INFO L480 AbstractCegarLoop]: Abstraction has has 121 places, 124 transitions, 1471 flow [2021-03-25 08:04:58,011 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 89.9) internal successors, (899), 10 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:58,011 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:04:58,011 INFO L263 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] [2021-03-25 08:04:58,012 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-03-25 08:04:58,012 INFO L428 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_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]=== [2021-03-25 08:04:58,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:04:58,012 INFO L82 PathProgramCache]: Analyzing trace with hash 69446857, now seen corresponding path program 1 times [2021-03-25 08:04:58,012 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:04:58,012 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582224609] [2021-03-25 08:04:58,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:04:58,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:04:58,018 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:58,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:04:58,019 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:58,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-25 08:04:58,021 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:58,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:04:58,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:04:58,022 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1582224609] [2021-03-25 08:04:58,022 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:04:58,022 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-25 08:04:58,022 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828038213] [2021-03-25 08:04:58,022 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-25 08:04:58,023 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:04:58,023 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-25 08:04:58,023 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-25 08:04:58,023 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 98 out of 107 [2021-03-25 08:04:58,024 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 124 transitions, 1471 flow. Second operand has 3 states, 3 states have (on average 98.66666666666667) internal successors, (296), 3 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:58,024 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:04:58,024 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 98 of 107 [2021-03-25 08:04:58,024 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:04:58,190 INFO L129 PetriNetUnfolder]: 0/1353 cut-off events. [2021-03-25 08:04:58,190 INFO L130 PetriNetUnfolder]: For 5869/6128 co-relation queries the response was YES. [2021-03-25 08:04:58,191 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3994 conditions, 1353 events. 0/1353 cut-off events. For 5869/6128 co-relation queries the response was YES. Maximal size of possible extension queue 151. Compared 17377 event pairs, 0 based on Foata normal form. 214/1404 useless extension candidates. Maximal degree in co-relation 0. Up to 146 conditions per place. [2021-03-25 08:04:58,192 INFO L132 encePairwiseOnDemand]: 103/107 looper letters, 1 selfloop transitions, 1 changer transitions 5/115 dead transitions. [2021-03-25 08:04:58,192 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 115 transitions, 1448 flow [2021-03-25 08:04:58,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-25 08:04:58,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-25 08:04:58,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 299 transitions. [2021-03-25 08:04:58,193 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9314641744548287 [2021-03-25 08:04:58,193 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 299 transitions. [2021-03-25 08:04:58,193 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 299 transitions. [2021-03-25 08:04:58,193 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:04:58,193 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 299 transitions. [2021-03-25 08:04:58,194 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 99.66666666666667) internal successors, (299), 3 states have internal predecessors, (299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:58,194 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 107.0) internal successors, (428), 4 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:58,194 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 107.0) internal successors, (428), 4 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:58,194 INFO L185 Difference]: Start difference. First operand has 121 places, 124 transitions, 1471 flow. Second operand 3 states and 299 transitions. [2021-03-25 08:04:58,194 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 115 transitions, 1448 flow [2021-03-25 08:04:58,219 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 115 transitions, 1410 flow, removed 13 selfloop flow, removed 1 redundant places. [2021-03-25 08:04:58,221 INFO L241 Difference]: Finished difference. Result has 122 places, 110 transitions, 1360 flow [2021-03-25 08:04:58,221 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=1406, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=114, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1360, PETRI_PLACES=122, PETRI_TRANSITIONS=110} [2021-03-25 08:04:58,221 INFO L343 CegarLoopForPetriNet]: 50 programPoint places, 72 predicate places. [2021-03-25 08:04:58,221 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:04:58,221 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 122 places, 110 transitions, 1360 flow [2021-03-25 08:04:58,221 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 122 places, 110 transitions, 1360 flow [2021-03-25 08:04:58,222 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 117 places, 110 transitions, 1360 flow [2021-03-25 08:04:58,320 INFO L129 PetriNetUnfolder]: 0/1339 cut-off events. [2021-03-25 08:04:58,320 INFO L130 PetriNetUnfolder]: For 5071/5355 co-relation queries the response was YES. [2021-03-25 08:04:58,320 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3797 conditions, 1339 events. 0/1339 cut-off events. For 5071/5355 co-relation queries the response was YES. Maximal size of possible extension queue 153. Compared 17289 event pairs, 0 based on Foata normal form. 11/1210 useless extension candidates. Maximal degree in co-relation 0. Up to 143 conditions per place. [2021-03-25 08:04:58,328 INFO L142 LiptonReduction]: Number of co-enabled transitions 910 [2021-03-25 08:04:58,332 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:04:58,332 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:04:58,332 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 111 [2021-03-25 08:04:58,333 INFO L480 AbstractCegarLoop]: Abstraction has has 117 places, 110 transitions, 1360 flow [2021-03-25 08:04:58,333 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 98.66666666666667) internal successors, (296), 3 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:58,333 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:04:58,333 INFO L263 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] [2021-03-25 08:04:58,333 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-03-25 08:04:58,333 INFO L428 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr3INUSE_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]=== [2021-03-25 08:04:58,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:04:58,333 INFO L82 PathProgramCache]: Analyzing trace with hash 49113155, now seen corresponding path program 6 times [2021-03-25 08:04:58,334 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:04:58,334 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091831039] [2021-03-25 08:04:58,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:04:58,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:04:58,348 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:58,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:04:58,349 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:58,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:04:58,353 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:58,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:04:58,359 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:58,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 08:04:58,369 INFO L142 QuantifierPusher]: treesize reduction 9, result has 78.6 percent of original size [2021-03-25 08:04:58,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 08:04:58,390 INFO L142 QuantifierPusher]: treesize reduction 9, result has 81.3 percent of original size [2021-03-25 08:04:58,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-25 08:04:58,417 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-25 08:04:58,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-25 08:04:58,456 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-25 08:04:58,456 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-25 08:04:58,490 INFO L142 QuantifierPusher]: treesize reduction 63, result has 47.5 percent of original size [2021-03-25 08:04:58,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-25 08:04:58,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:04:58,515 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091831039] [2021-03-25 08:04:58,515 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:04:58,515 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 08:04:58,515 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677443594] [2021-03-25 08:04:58,515 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 08:04:58,515 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:04:58,516 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 08:04:58,516 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-03-25 08:04:58,516 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 107 [2021-03-25 08:04:58,517 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 110 transitions, 1360 flow. Second operand has 10 states, 10 states have (on average 89.9) internal successors, (899), 10 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:58,517 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:04:58,517 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 107 [2021-03-25 08:04:58,517 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:04:59,375 INFO L129 PetriNetUnfolder]: 2482/7195 cut-off events. [2021-03-25 08:04:59,375 INFO L130 PetriNetUnfolder]: For 72601/74367 co-relation queries the response was YES. [2021-03-25 08:04:59,402 INFO L84 FinitePrefix]: Finished finitePrefix Result has 37059 conditions, 7195 events. 2482/7195 cut-off events. For 72601/74367 co-relation queries the response was YES. Maximal size of possible extension queue 786. Compared 81593 event pairs, 1050 based on Foata normal form. 2/7015 useless extension candidates. Maximal degree in co-relation 37011. Up to 2531 conditions per place. [2021-03-25 08:04:59,424 INFO L132 encePairwiseOnDemand]: 98/107 looper letters, 144 selfloop transitions, 44 changer transitions 1/205 dead transitions. [2021-03-25 08:04:59,424 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 205 transitions, 2986 flow [2021-03-25 08:04:59,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 08:04:59,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 08:04:59,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 934 transitions. [2021-03-25 08:04:59,426 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8728971962616823 [2021-03-25 08:04:59,426 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 934 transitions. [2021-03-25 08:04:59,426 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 934 transitions. [2021-03-25 08:04:59,426 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:04:59,426 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 934 transitions. [2021-03-25 08:04:59,428 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 93.4) internal successors, (934), 10 states have internal predecessors, (934), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:59,429 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 107.0) internal successors, (1177), 11 states have internal predecessors, (1177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:59,429 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 107.0) internal successors, (1177), 11 states have internal predecessors, (1177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:59,429 INFO L185 Difference]: Start difference. First operand has 117 places, 110 transitions, 1360 flow. Second operand 10 states and 934 transitions. [2021-03-25 08:04:59,429 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 205 transitions, 2986 flow [2021-03-25 08:04:59,561 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 205 transitions, 2915 flow, removed 35 selfloop flow, removed 6 redundant places. [2021-03-25 08:04:59,564 INFO L241 Difference]: Finished difference. Result has 128 places, 125 transitions, 1725 flow [2021-03-25 08:04:59,564 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=1349, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1725, PETRI_PLACES=128, PETRI_TRANSITIONS=125} [2021-03-25 08:04:59,564 INFO L343 CegarLoopForPetriNet]: 50 programPoint places, 78 predicate places. [2021-03-25 08:04:59,564 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:04:59,564 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 128 places, 125 transitions, 1725 flow [2021-03-25 08:04:59,564 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 128 places, 125 transitions, 1725 flow [2021-03-25 08:04:59,565 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 127 places, 125 transitions, 1725 flow [2021-03-25 08:04:59,847 INFO L129 PetriNetUnfolder]: 0/2243 cut-off events. [2021-03-25 08:04:59,847 INFO L130 PetriNetUnfolder]: For 9957/10336 co-relation queries the response was YES. [2021-03-25 08:04:59,847 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6114 conditions, 2243 events. 0/2243 cut-off events. For 9957/10336 co-relation queries the response was YES. Maximal size of possible extension queue 255. Compared 32096 event pairs, 0 based on Foata normal form. 17/2042 useless extension candidates. Maximal degree in co-relation 0. Up to 230 conditions per place. [2021-03-25 08:04:59,864 INFO L142 LiptonReduction]: Number of co-enabled transitions 1044 [2021-03-25 08:04:59,868 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:04:59,869 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:04:59,869 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 305 [2021-03-25 08:04:59,869 INFO L480 AbstractCegarLoop]: Abstraction has has 127 places, 125 transitions, 1725 flow [2021-03-25 08:04:59,869 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 89.9) internal successors, (899), 10 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:04:59,869 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:04:59,869 INFO L263 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] [2021-03-25 08:04:59,870 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-03-25 08:04:59,870 INFO L428 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr3INUSE_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]=== [2021-03-25 08:04:59,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:04:59,870 INFO L82 PathProgramCache]: Analyzing trace with hash -79794005, now seen corresponding path program 7 times [2021-03-25 08:04:59,870 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:04:59,870 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873771512] [2021-03-25 08:04:59,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:04:59,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:04:59,888 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:59,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:04:59,889 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:59,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:04:59,893 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:04:59,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:04:59,908 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-25 08:04:59,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 08:04:59,928 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-25 08:04:59,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 08:04:59,948 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-25 08:04:59,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-25 08:04:59,969 INFO L142 QuantifierPusher]: treesize reduction 45, result has 51.1 percent of original size [2021-03-25 08:04:59,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-25 08:04:59,999 INFO L142 QuantifierPusher]: treesize reduction 54, result has 50.5 percent of original size [2021-03-25 08:05:00,000 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-25 08:05:00,037 INFO L142 QuantifierPusher]: treesize reduction 63, result has 47.5 percent of original size [2021-03-25 08:05:00,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-25 08:05:00,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:05:00,067 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873771512] [2021-03-25 08:05:00,067 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:05:00,067 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 08:05:00,068 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77919046] [2021-03-25 08:05:00,068 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 08:05:00,068 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:05:00,068 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 08:05:00,068 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-03-25 08:05:00,069 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 107 [2021-03-25 08:05:00,070 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 125 transitions, 1725 flow. Second operand has 10 states, 10 states have (on average 89.9) internal successors, (899), 10 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:05:00,070 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:05:00,070 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 107 [2021-03-25 08:05:00,070 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:05:01,415 INFO L129 PetriNetUnfolder]: 3009/11033 cut-off events. [2021-03-25 08:05:01,415 INFO L130 PetriNetUnfolder]: For 127965/133062 co-relation queries the response was YES. [2021-03-25 08:05:01,456 INFO L84 FinitePrefix]: Finished finitePrefix Result has 55289 conditions, 11033 events. 3009/11033 cut-off events. For 127965/133062 co-relation queries the response was YES. Maximal size of possible extension queue 1280. Compared 150182 event pairs, 883 based on Foata normal form. 7/10726 useless extension candidates. Maximal degree in co-relation 55238. Up to 2689 conditions per place. [2021-03-25 08:05:01,489 INFO L132 encePairwiseOnDemand]: 98/107 looper letters, 141 selfloop transitions, 85 changer transitions 1/243 dead transitions. [2021-03-25 08:05:01,489 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 243 transitions, 3995 flow [2021-03-25 08:05:01,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 08:05:01,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 08:05:01,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 934 transitions. [2021-03-25 08:05:01,491 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8728971962616823 [2021-03-25 08:05:01,491 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 934 transitions. [2021-03-25 08:05:01,491 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 934 transitions. [2021-03-25 08:05:01,491 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:05:01,491 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 934 transitions. [2021-03-25 08:05:01,492 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 93.4) internal successors, (934), 10 states have internal predecessors, (934), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:05:01,494 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 107.0) internal successors, (1177), 11 states have internal predecessors, (1177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:05:01,494 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 107.0) internal successors, (1177), 11 states have internal predecessors, (1177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:05:01,494 INFO L185 Difference]: Start difference. First operand has 127 places, 125 transitions, 1725 flow. Second operand 10 states and 934 transitions. [2021-03-25 08:05:01,494 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 243 transitions, 3995 flow [2021-03-25 08:05:01,787 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 243 transitions, 3823 flow, removed 54 selfloop flow, removed 2 redundant places. [2021-03-25 08:05:01,790 INFO L241 Difference]: Finished difference. Result has 142 places, 169 transitions, 2755 flow [2021-03-25 08:05:01,790 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=1647, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=41, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=2755, PETRI_PLACES=142, PETRI_TRANSITIONS=169} [2021-03-25 08:05:01,790 INFO L343 CegarLoopForPetriNet]: 50 programPoint places, 92 predicate places. [2021-03-25 08:05:01,790 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:05:01,790 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 142 places, 169 transitions, 2755 flow [2021-03-25 08:05:01,790 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 142 places, 169 transitions, 2755 flow [2021-03-25 08:05:01,791 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 141 places, 169 transitions, 2755 flow [2021-03-25 08:05:02,282 INFO L129 PetriNetUnfolder]: 0/4023 cut-off events. [2021-03-25 08:05:02,282 INFO L130 PetriNetUnfolder]: For 26142/27177 co-relation queries the response was YES. [2021-03-25 08:05:02,282 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12147 conditions, 4023 events. 0/4023 cut-off events. For 26142/27177 co-relation queries the response was YES. Maximal size of possible extension queue 495. Compared 64711 event pairs, 0 based on Foata normal form. 38/3760 useless extension candidates. Maximal degree in co-relation 0. Up to 393 conditions per place. [2021-03-25 08:05:02,317 INFO L142 LiptonReduction]: Number of co-enabled transitions 1274 [2021-03-25 08:05:02,324 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:05:02,324 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:05:02,324 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 534 [2021-03-25 08:05:02,324 INFO L480 AbstractCegarLoop]: Abstraction has has 141 places, 169 transitions, 2755 flow [2021-03-25 08:05:02,325 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 89.9) internal successors, (899), 10 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:05:02,325 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:05:02,325 INFO L263 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] [2021-03-25 08:05:02,325 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-03-25 08:05:02,325 INFO L428 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr3INUSE_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]=== [2021-03-25 08:05:02,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:05:02,325 INFO L82 PathProgramCache]: Analyzing trace with hash 394404565, now seen corresponding path program 8 times [2021-03-25 08:05:02,325 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:05:02,325 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104829543] [2021-03-25 08:05:02,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:05:02,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:05:02,353 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:05:02,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:05:02,354 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:05:02,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:05:02,358 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:05:02,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:05:02,364 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:05:02,365 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 08:05:02,375 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-25 08:05:02,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 08:05:02,389 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-25 08:05:02,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 08:05:02,409 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-25 08:05:02,410 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-25 08:05:02,456 INFO L142 QuantifierPusher]: treesize reduction 54, result has 50.5 percent of original size [2021-03-25 08:05:02,457 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-25 08:05:02,489 INFO L142 QuantifierPusher]: treesize reduction 63, result has 47.5 percent of original size [2021-03-25 08:05:02,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-25 08:05:02,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:05:02,518 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104829543] [2021-03-25 08:05:02,518 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:05:02,518 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 08:05:02,518 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627101859] [2021-03-25 08:05:02,519 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 08:05:02,519 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:05:02,519 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 08:05:02,519 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-03-25 08:05:02,520 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 107 [2021-03-25 08:05:02,520 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 169 transitions, 2755 flow. Second operand has 10 states, 10 states have (on average 89.9) internal successors, (899), 10 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:05:02,520 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:05:02,520 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 107 [2021-03-25 08:05:02,521 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:05:04,732 INFO L129 PetriNetUnfolder]: 3609/15146 cut-off events. [2021-03-25 08:05:04,732 INFO L130 PetriNetUnfolder]: For 215198/219577 co-relation queries the response was YES. [2021-03-25 08:05:04,839 INFO L84 FinitePrefix]: Finished finitePrefix Result has 78992 conditions, 15146 events. 3609/15146 cut-off events. For 215198/219577 co-relation queries the response was YES. Maximal size of possible extension queue 1869. Compared 228830 event pairs, 1180 based on Foata normal form. 1/14680 useless extension candidates. Maximal degree in co-relation 78934. Up to 3921 conditions per place. [2021-03-25 08:05:04,903 INFO L132 encePairwiseOnDemand]: 98/107 looper letters, 217 selfloop transitions, 96 changer transitions 2/331 dead transitions. [2021-03-25 08:05:04,903 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 331 transitions, 6187 flow [2021-03-25 08:05:04,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 08:05:04,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 08:05:04,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 934 transitions. [2021-03-25 08:05:04,905 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8728971962616823 [2021-03-25 08:05:04,905 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 934 transitions. [2021-03-25 08:05:04,905 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 934 transitions. [2021-03-25 08:05:04,906 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:05:04,906 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 934 transitions. [2021-03-25 08:05:04,907 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 93.4) internal successors, (934), 10 states have internal predecessors, (934), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:05:04,908 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 107.0) internal successors, (1177), 11 states have internal predecessors, (1177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:05:04,908 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 107.0) internal successors, (1177), 11 states have internal predecessors, (1177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:05:04,909 INFO L185 Difference]: Start difference. First operand has 141 places, 169 transitions, 2755 flow. Second operand 10 states and 934 transitions. [2021-03-25 08:05:04,909 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 331 transitions, 6187 flow [2021-03-25 08:05:05,712 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 331 transitions, 6077 flow, removed 42 selfloop flow, removed 2 redundant places. [2021-03-25 08:05:05,717 INFO L241 Difference]: Finished difference. Result has 156 places, 211 transitions, 3900 flow [2021-03-25 08:05:05,717 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=2693, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=169, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=54, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=3900, PETRI_PLACES=156, PETRI_TRANSITIONS=211} [2021-03-25 08:05:05,717 INFO L343 CegarLoopForPetriNet]: 50 programPoint places, 106 predicate places. [2021-03-25 08:05:05,717 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:05:05,718 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 156 places, 211 transitions, 3900 flow [2021-03-25 08:05:05,718 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 156 places, 211 transitions, 3900 flow [2021-03-25 08:05:05,719 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 155 places, 211 transitions, 3900 flow [2021-03-25 08:05:06,605 INFO L129 PetriNetUnfolder]: 0/6076 cut-off events. [2021-03-25 08:05:06,605 INFO L130 PetriNetUnfolder]: For 53300/54874 co-relation queries the response was YES. [2021-03-25 08:05:06,605 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20226 conditions, 6076 events. 0/6076 cut-off events. For 53300/54874 co-relation queries the response was YES. Maximal size of possible extension queue 766. Compared 104701 event pairs, 0 based on Foata normal form. 22/5681 useless extension candidates. Maximal degree in co-relation 0. Up to 590 conditions per place. [2021-03-25 08:05:06,670 INFO L142 LiptonReduction]: Number of co-enabled transitions 1476 [2021-03-25 08:05:06,681 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:05:06,681 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:05:06,681 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 964 [2021-03-25 08:05:06,682 INFO L480 AbstractCegarLoop]: Abstraction has has 155 places, 211 transitions, 3900 flow [2021-03-25 08:05:06,682 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 89.9) internal successors, (899), 10 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:05:06,682 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:05:06,682 INFO L263 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] [2021-03-25 08:05:06,682 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-03-25 08:05:06,682 INFO L428 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr3INUSE_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]=== [2021-03-25 08:05:06,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:05:06,683 INFO L82 PathProgramCache]: Analyzing trace with hash -344952837, now seen corresponding path program 9 times [2021-03-25 08:05:06,683 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:05:06,683 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154302597] [2021-03-25 08:05:06,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:05:06,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:05:06,697 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:05:06,698 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:05:06,698 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:05:06,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:05:06,702 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:05:06,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:05:06,709 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-25 08:05:06,710 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 08:05:06,720 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-03-25 08:05:06,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-25 08:05:06,734 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-03-25 08:05:06,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-25 08:05:06,767 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-25 08:05:06,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-25 08:05:06,805 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-25 08:05:06,806 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-25 08:05:06,835 INFO L142 QuantifierPusher]: treesize reduction 63, result has 47.5 percent of original size [2021-03-25 08:05:06,836 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-25 08:05:06,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:05:06,863 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1154302597] [2021-03-25 08:05:06,863 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:05:06,863 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 08:05:06,863 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984301501] [2021-03-25 08:05:06,864 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 08:05:06,864 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:05:06,864 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 08:05:06,864 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-03-25 08:05:06,865 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 107 [2021-03-25 08:05:06,865 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 155 places, 211 transitions, 3900 flow. Second operand has 10 states, 10 states have (on average 89.9) internal successors, (899), 10 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:05:06,865 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:05:06,865 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 107 [2021-03-25 08:05:06,865 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:05:09,391 INFO L129 PetriNetUnfolder]: 3603/14931 cut-off events. [2021-03-25 08:05:09,391 INFO L130 PetriNetUnfolder]: For 264869/269363 co-relation queries the response was YES. [2021-03-25 08:05:09,496 INFO L84 FinitePrefix]: Finished finitePrefix Result has 85241 conditions, 14931 events. 3603/14931 cut-off events. For 264869/269363 co-relation queries the response was YES. Maximal size of possible extension queue 1815. Compared 222301 event pairs, 1292 based on Foata normal form. 5/14531 useless extension candidates. Maximal degree in co-relation 85176. Up to 4266 conditions per place. [2021-03-25 08:05:09,554 INFO L132 encePairwiseOnDemand]: 98/107 looper letters, 225 selfloop transitions, 102 changer transitions 1/344 dead transitions. [2021-03-25 08:05:09,554 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 164 places, 344 transitions, 7065 flow [2021-03-25 08:05:09,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 08:05:09,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 08:05:09,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 934 transitions. [2021-03-25 08:05:09,556 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8728971962616823 [2021-03-25 08:05:09,556 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 934 transitions. [2021-03-25 08:05:09,556 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 934 transitions. [2021-03-25 08:05:09,556 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:05:09,556 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 934 transitions. [2021-03-25 08:05:09,558 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 93.4) internal successors, (934), 10 states have internal predecessors, (934), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:05:09,559 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 107.0) internal successors, (1177), 11 states have internal predecessors, (1177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:05:09,559 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 107.0) internal successors, (1177), 11 states have internal predecessors, (1177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:05:09,559 INFO L185 Difference]: Start difference. First operand has 155 places, 211 transitions, 3900 flow. Second operand 10 states and 934 transitions. [2021-03-25 08:05:09,559 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 164 places, 344 transitions, 7065 flow [2021-03-25 08:05:10,704 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 161 places, 344 transitions, 6716 flow, removed 150 selfloop flow, removed 3 redundant places. [2021-03-25 08:05:10,709 INFO L241 Difference]: Finished difference. Result has 169 places, 252 transitions, 5006 flow [2021-03-25 08:05:10,709 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=3736, PETRI_DIFFERENCE_MINUEND_PLACES=152, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=211, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=61, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=5006, PETRI_PLACES=169, PETRI_TRANSITIONS=252} [2021-03-25 08:05:10,709 INFO L343 CegarLoopForPetriNet]: 50 programPoint places, 119 predicate places. [2021-03-25 08:05:10,709 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:05:10,709 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 169 places, 252 transitions, 5006 flow [2021-03-25 08:05:10,709 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 169 places, 252 transitions, 5006 flow [2021-03-25 08:05:10,711 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 168 places, 252 transitions, 5006 flow [2021-03-25 08:05:11,513 INFO L129 PetriNetUnfolder]: 0/6185 cut-off events. [2021-03-25 08:05:11,513 INFO L130 PetriNetUnfolder]: For 60035/62290 co-relation queries the response was YES. [2021-03-25 08:05:11,514 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20994 conditions, 6185 events. 0/6185 cut-off events. For 60035/62290 co-relation queries the response was YES. Maximal size of possible extension queue 773. Compared 106966 event pairs, 0 based on Foata normal form. 29/5790 useless extension candidates. Maximal degree in co-relation 0. Up to 604 conditions per place. [2021-03-25 08:05:11,563 INFO L142 LiptonReduction]: Number of co-enabled transitions 1650 [2021-03-25 08:05:11,575 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:05:11,575 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:05:11,575 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 866 [2021-03-25 08:05:11,575 INFO L480 AbstractCegarLoop]: Abstraction has has 168 places, 252 transitions, 5006 flow [2021-03-25 08:05:11,576 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 89.9) internal successors, (899), 10 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:05:11,576 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:05:11,576 INFO L263 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] [2021-03-25 08:05:11,576 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-03-25 08:05:11,576 INFO L428 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr3INUSE_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]=== [2021-03-25 08:05:11,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:05:11,576 INFO L82 PathProgramCache]: Analyzing trace with hash -902040587, now seen corresponding path program 10 times [2021-03-25 08:05:11,576 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:05:11,576 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189151955] [2021-03-25 08:05:11,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:05:11,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:05:11,592 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:05:11,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:05:11,592 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:05:11,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:05:11,596 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:05:11,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:05:11,601 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:05:11,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 08:05:11,610 INFO L142 QuantifierPusher]: treesize reduction 9, result has 78.6 percent of original size [2021-03-25 08:05:11,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 08:05:11,635 INFO L142 QuantifierPusher]: treesize reduction 18, result has 72.3 percent of original size [2021-03-25 08:05:11,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-25 08:05:11,664 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-25 08:05:11,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-25 08:05:11,709 INFO L142 QuantifierPusher]: treesize reduction 54, result has 50.5 percent of original size [2021-03-25 08:05:11,710 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-25 08:05:11,751 INFO L142 QuantifierPusher]: treesize reduction 63, result has 47.5 percent of original size [2021-03-25 08:05:11,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-25 08:05:11,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:05:11,781 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [189151955] [2021-03-25 08:05:11,781 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:05:11,781 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 08:05:11,781 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378490941] [2021-03-25 08:05:11,782 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 08:05:11,782 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:05:11,782 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 08:05:11,782 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-03-25 08:05:11,783 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 107 [2021-03-25 08:05:11,783 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 168 places, 252 transitions, 5006 flow. Second operand has 10 states, 10 states have (on average 89.9) internal successors, (899), 10 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:05:11,783 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:05:11,783 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 107 [2021-03-25 08:05:11,783 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:05:14,621 INFO L129 PetriNetUnfolder]: 3626/16548 cut-off events. [2021-03-25 08:05:14,622 INFO L130 PetriNetUnfolder]: For 335416/342545 co-relation queries the response was YES. [2021-03-25 08:05:14,739 INFO L84 FinitePrefix]: Finished finitePrefix Result has 97499 conditions, 16548 events. 3626/16548 cut-off events. For 335416/342545 co-relation queries the response was YES. Maximal size of possible extension queue 2031. Compared 257424 event pairs, 1726 based on Foata normal form. 8/16072 useless extension candidates. Maximal degree in co-relation 97428. Up to 4214 conditions per place. [2021-03-25 08:05:14,794 INFO L132 encePairwiseOnDemand]: 98/107 looper letters, 267 selfloop transitions, 132 changer transitions 2/417 dead transitions. [2021-03-25 08:05:14,795 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 177 places, 417 transitions, 8880 flow [2021-03-25 08:05:14,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 08:05:14,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 08:05:14,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 934 transitions. [2021-03-25 08:05:14,797 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8728971962616823 [2021-03-25 08:05:14,797 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 934 transitions. [2021-03-25 08:05:14,797 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 934 transitions. [2021-03-25 08:05:14,798 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:05:14,798 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 934 transitions. [2021-03-25 08:05:14,800 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 93.4) internal successors, (934), 10 states have internal predecessors, (934), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:05:14,801 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 107.0) internal successors, (1177), 11 states have internal predecessors, (1177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:05:14,801 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 107.0) internal successors, (1177), 11 states have internal predecessors, (1177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:05:14,801 INFO L185 Difference]: Start difference. First operand has 168 places, 252 transitions, 5006 flow. Second operand 10 states and 934 transitions. [2021-03-25 08:05:14,801 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 177 places, 417 transitions, 8880 flow [2021-03-25 08:05:15,969 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 175 places, 417 transitions, 8546 flow, removed 115 selfloop flow, removed 2 redundant places. [2021-03-25 08:05:15,974 INFO L241 Difference]: Finished difference. Result has 183 places, 286 transitions, 5922 flow [2021-03-25 08:05:15,974 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=4838, PETRI_DIFFERENCE_MINUEND_PLACES=166, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=252, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=98, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=120, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=5922, PETRI_PLACES=183, PETRI_TRANSITIONS=286} [2021-03-25 08:05:15,974 INFO L343 CegarLoopForPetriNet]: 50 programPoint places, 133 predicate places. [2021-03-25 08:05:15,974 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:05:15,974 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 183 places, 286 transitions, 5922 flow [2021-03-25 08:05:15,975 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 183 places, 286 transitions, 5922 flow [2021-03-25 08:05:15,977 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 182 places, 286 transitions, 5922 flow [2021-03-25 08:05:17,304 INFO L129 PetriNetUnfolder]: 0/8155 cut-off events. [2021-03-25 08:05:17,304 INFO L130 PetriNetUnfolder]: For 92373/95331 co-relation queries the response was YES. [2021-03-25 08:05:17,304 INFO L84 FinitePrefix]: Finished finitePrefix Result has 28711 conditions, 8155 events. 0/8155 cut-off events. For 92373/95331 co-relation queries the response was YES. Maximal size of possible extension queue 1027. Compared 148280 event pairs, 0 based on Foata normal form. 113/7751 useless extension candidates. Maximal degree in co-relation 0. Up to 826 conditions per place. [2021-03-25 08:05:17,383 INFO L142 LiptonReduction]: Number of co-enabled transitions 1940 [2021-03-25 08:05:17,396 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:05:17,397 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:05:17,397 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1423 [2021-03-25 08:05:17,397 INFO L480 AbstractCegarLoop]: Abstraction has has 182 places, 286 transitions, 5922 flow [2021-03-25 08:05:17,397 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 89.9) internal successors, (899), 10 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:05:17,397 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:05:17,397 INFO L263 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] [2021-03-25 08:05:17,397 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-03-25 08:05:17,397 INFO L428 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr3INUSE_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]=== [2021-03-25 08:05:17,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:05:17,398 INFO L82 PathProgramCache]: Analyzing trace with hash -1148306967, now seen corresponding path program 11 times [2021-03-25 08:05:17,398 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:05:17,398 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503886916] [2021-03-25 08:05:17,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:05:17,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:05:17,417 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:05:17,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:05:17,418 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:05:17,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:05:17,422 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-25 08:05:17,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 08:05:17,428 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-25 08:05:17,428 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 08:05:17,438 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-25 08:05:17,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 08:05:17,455 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-25 08:05:17,456 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 08:05:17,473 INFO L142 QuantifierPusher]: treesize reduction 45, result has 51.1 percent of original size [2021-03-25 08:05:17,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-25 08:05:17,497 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-25 08:05:17,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-25 08:05:17,525 INFO L142 QuantifierPusher]: treesize reduction 63, result has 47.5 percent of original size [2021-03-25 08:05:17,526 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-25 08:05:17,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:05:17,552 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503886916] [2021-03-25 08:05:17,552 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:05:17,552 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 08:05:17,552 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759722749] [2021-03-25 08:05:17,553 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 08:05:17,553 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:05:17,553 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 08:05:17,553 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-03-25 08:05:17,553 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 107 [2021-03-25 08:05:17,554 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 182 places, 286 transitions, 5922 flow. Second operand has 10 states, 10 states have (on average 89.9) internal successors, (899), 10 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:05:17,554 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:05:17,554 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 107 [2021-03-25 08:05:17,554 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:05:21,184 INFO L129 PetriNetUnfolder]: 3892/19260 cut-off events. [2021-03-25 08:05:21,184 INFO L130 PetriNetUnfolder]: For 424826/434469 co-relation queries the response was YES. [2021-03-25 08:05:21,337 INFO L84 FinitePrefix]: Finished finitePrefix Result has 115999 conditions, 19260 events. 3892/19260 cut-off events. For 424826/434469 co-relation queries the response was YES. Maximal size of possible extension queue 2378. Compared 314084 event pairs, 1407 based on Foata normal form. 11/18673 useless extension candidates. Maximal degree in co-relation 115921. Up to 5001 conditions per place. [2021-03-25 08:05:21,405 INFO L132 encePairwiseOnDemand]: 98/107 looper letters, 219 selfloop transitions, 173 changer transitions 1/409 dead transitions. [2021-03-25 08:05:21,405 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 191 places, 409 transitions, 9196 flow [2021-03-25 08:05:21,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 08:05:21,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 08:05:21,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 934 transitions. [2021-03-25 08:05:21,407 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8728971962616823 [2021-03-25 08:05:21,407 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 934 transitions. [2021-03-25 08:05:21,407 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 934 transitions. [2021-03-25 08:05:21,407 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:05:21,407 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 934 transitions. [2021-03-25 08:05:21,408 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 93.4) internal successors, (934), 10 states have internal predecessors, (934), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:05:21,409 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 107.0) internal successors, (1177), 11 states have internal predecessors, (1177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:05:21,410 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 107.0) internal successors, (1177), 11 states have internal predecessors, (1177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:05:21,410 INFO L185 Difference]: Start difference. First operand has 182 places, 286 transitions, 5922 flow. Second operand 10 states and 934 transitions. [2021-03-25 08:05:21,410 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 191 places, 409 transitions, 9196 flow [2021-03-25 08:05:23,198 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 188 places, 409 transitions, 8819 flow, removed 126 selfloop flow, removed 3 redundant places. [2021-03-25 08:05:23,204 INFO L241 Difference]: Finished difference. Result has 196 places, 339 transitions, 7625 flow [2021-03-25 08:05:23,204 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=5707, PETRI_DIFFERENCE_MINUEND_PLACES=179, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=286, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=120, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=7625, PETRI_PLACES=196, PETRI_TRANSITIONS=339} [2021-03-25 08:05:23,205 INFO L343 CegarLoopForPetriNet]: 50 programPoint places, 146 predicate places. [2021-03-25 08:05:23,205 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:05:23,205 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 196 places, 339 transitions, 7625 flow [2021-03-25 08:05:23,205 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 196 places, 339 transitions, 7625 flow [2021-03-25 08:05:23,207 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 195 places, 339 transitions, 7625 flow [2021-03-25 08:05:24,929 INFO L129 PetriNetUnfolder]: 0/9323 cut-off events. [2021-03-25 08:05:24,929 INFO L130 PetriNetUnfolder]: For 125417/130025 co-relation queries the response was YES. [2021-03-25 08:05:24,929 INFO L84 FinitePrefix]: Finished finitePrefix Result has 34443 conditions, 9323 events. 0/9323 cut-off events. For 125417/130025 co-relation queries the response was YES. Maximal size of possible extension queue 1179. Compared 172994 event pairs, 0 based on Foata normal form. 152/8901 useless extension candidates. Maximal degree in co-relation 0. Up to 956 conditions per place. [2021-03-25 08:05:25,024 INFO L142 LiptonReduction]: Number of co-enabled transitions 2272 [2021-03-25 08:05:25,041 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:05:25,041 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:05:25,041 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1836 [2021-03-25 08:05:25,041 INFO L480 AbstractCegarLoop]: Abstraction has has 195 places, 339 transitions, 7625 flow [2021-03-25 08:05:25,042 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 89.9) internal successors, (899), 10 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:05:25,042 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:05:25,042 INFO L263 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] [2021-03-25 08:05:25,042 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-03-25 08:05:25,042 INFO L428 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr3INUSE_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]=== [2021-03-25 08:05:25,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:05:25,042 INFO L82 PathProgramCache]: Analyzing trace with hash 1553004443, now seen corresponding path program 12 times [2021-03-25 08:05:25,042 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:05:25,042 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877025611] [2021-03-25 08:05:25,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:05:25,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:05:25,056 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:05:25,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:05:25,056 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:05:25,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:05:25,060 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:05:25,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:05:25,066 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:05:25,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 08:05:25,074 INFO L142 QuantifierPusher]: treesize reduction 9, result has 78.6 percent of original size [2021-03-25 08:05:25,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-25 08:05:25,094 INFO L142 QuantifierPusher]: treesize reduction 18, result has 72.3 percent of original size [2021-03-25 08:05:25,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-25 08:05:25,121 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-25 08:05:25,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-25 08:05:25,162 INFO L142 QuantifierPusher]: treesize reduction 54, result has 50.5 percent of original size [2021-03-25 08:05:25,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-25 08:05:25,197 INFO L142 QuantifierPusher]: treesize reduction 63, result has 47.5 percent of original size [2021-03-25 08:05:25,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-25 08:05:25,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:05:25,224 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877025611] [2021-03-25 08:05:25,224 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:05:25,224 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 08:05:25,224 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385994313] [2021-03-25 08:05:25,225 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 08:05:25,225 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:05:25,226 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 08:05:25,226 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-03-25 08:05:25,227 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 107 [2021-03-25 08:05:25,227 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 195 places, 339 transitions, 7625 flow. Second operand has 10 states, 10 states have (on average 89.9) internal successors, (899), 10 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:05:25,227 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:05:25,227 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 107 [2021-03-25 08:05:25,227 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:05:29,652 INFO L129 PetriNetUnfolder]: 3971/20301 cut-off events. [2021-03-25 08:05:29,652 INFO L130 PetriNetUnfolder]: For 535489/545854 co-relation queries the response was YES. [2021-03-25 08:05:29,810 INFO L84 FinitePrefix]: Finished finitePrefix Result has 130219 conditions, 20301 events. 3971/20301 cut-off events. For 535489/545854 co-relation queries the response was YES. Maximal size of possible extension queue 2479. Compared 337023 event pairs, 1815 based on Foata normal form. 14/19554 useless extension candidates. Maximal degree in co-relation 130135. Up to 4783 conditions per place. [2021-03-25 08:05:29,881 INFO L132 encePairwiseOnDemand]: 98/107 looper letters, 281 selfloop transitions, 205 changer transitions 2/504 dead transitions. [2021-03-25 08:05:29,881 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 204 places, 504 transitions, 12007 flow [2021-03-25 08:05:29,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 08:05:29,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 08:05:29,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 934 transitions. [2021-03-25 08:05:29,893 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8728971962616823 [2021-03-25 08:05:29,893 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 934 transitions. [2021-03-25 08:05:29,893 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 934 transitions. [2021-03-25 08:05:29,893 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:05:29,893 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 934 transitions. [2021-03-25 08:05:29,894 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 93.4) internal successors, (934), 10 states have internal predecessors, (934), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:05:29,895 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 107.0) internal successors, (1177), 11 states have internal predecessors, (1177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:05:29,895 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 107.0) internal successors, (1177), 11 states have internal predecessors, (1177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:05:29,895 INFO L185 Difference]: Start difference. First operand has 195 places, 339 transitions, 7625 flow. Second operand 10 states and 934 transitions. [2021-03-25 08:05:29,895 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 204 places, 504 transitions, 12007 flow [2021-03-25 08:05:32,290 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 202 places, 504 transitions, 11723 flow, removed 85 selfloop flow, removed 2 redundant places. [2021-03-25 08:05:32,297 INFO L241 Difference]: Finished difference. Result has 210 places, 375 transitions, 8941 flow [2021-03-25 08:05:32,297 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=7437, PETRI_DIFFERENCE_MINUEND_PLACES=193, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=339, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=169, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=134, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=8941, PETRI_PLACES=210, PETRI_TRANSITIONS=375} [2021-03-25 08:05:32,297 INFO L343 CegarLoopForPetriNet]: 50 programPoint places, 160 predicate places. [2021-03-25 08:05:32,297 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:05:32,297 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 210 places, 375 transitions, 8941 flow [2021-03-25 08:05:32,298 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 210 places, 375 transitions, 8941 flow [2021-03-25 08:05:32,300 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 209 places, 375 transitions, 8941 flow [2021-03-25 08:05:35,325 INFO L129 PetriNetUnfolder]: 0/10977 cut-off events. [2021-03-25 08:05:35,325 INFO L130 PetriNetUnfolder]: For 172973/178709 co-relation queries the response was YES. [2021-03-25 08:05:35,325 INFO L84 FinitePrefix]: Finished finitePrefix Result has 42492 conditions, 10977 events. 0/10977 cut-off events. For 172973/178709 co-relation queries the response was YES. Maximal size of possible extension queue 1385. Compared 209113 event pairs, 0 based on Foata normal form. 147/10512 useless extension candidates. Maximal degree in co-relation 0. Up to 1128 conditions per place. [2021-03-25 08:05:35,411 INFO L142 LiptonReduction]: Number of co-enabled transitions 2634 [2021-03-25 08:05:35,430 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:05:35,430 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:05:35,430 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 3133 [2021-03-25 08:05:35,431 INFO L480 AbstractCegarLoop]: Abstraction has has 209 places, 375 transitions, 8941 flow [2021-03-25 08:05:35,431 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 89.9) internal successors, (899), 10 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:05:35,431 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:05:35,431 INFO L263 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] [2021-03-25 08:05:35,431 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-03-25 08:05:35,431 INFO L428 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr3INUSE_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]=== [2021-03-25 08:05:35,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:05:35,431 INFO L82 PathProgramCache]: Analyzing trace with hash 825661975, now seen corresponding path program 13 times [2021-03-25 08:05:35,432 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:05:35,432 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164501760] [2021-03-25 08:05:35,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:05:35,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:05:35,452 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:05:35,452 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:05:35,453 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:05:35,453 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:05:35,456 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:05:35,458 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:05:35,464 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-25 08:05:35,464 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 08:05:35,482 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-25 08:05:35,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 08:05:35,496 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-25 08:05:35,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-25 08:05:35,514 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-25 08:05:35,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-25 08:05:35,539 INFO L142 QuantifierPusher]: treesize reduction 54, result has 50.5 percent of original size [2021-03-25 08:05:35,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-25 08:05:35,575 INFO L142 QuantifierPusher]: treesize reduction 63, result has 47.5 percent of original size [2021-03-25 08:05:35,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-25 08:05:35,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:05:35,681 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164501760] [2021-03-25 08:05:35,681 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:05:35,681 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 08:05:35,681 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308529286] [2021-03-25 08:05:35,681 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 08:05:35,681 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:05:35,682 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 08:05:35,682 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-03-25 08:05:35,682 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 107 [2021-03-25 08:05:35,683 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 209 places, 375 transitions, 8941 flow. Second operand has 10 states, 10 states have (on average 89.9) internal successors, (899), 10 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:05:35,683 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:05:35,683 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 107 [2021-03-25 08:05:35,683 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:05:41,519 INFO L129 PetriNetUnfolder]: 4096/23889 cut-off events. [2021-03-25 08:05:41,519 INFO L130 PetriNetUnfolder]: For 637832/649137 co-relation queries the response was YES. [2021-03-25 08:05:41,664 INFO L84 FinitePrefix]: Finished finitePrefix Result has 149715 conditions, 23889 events. 4096/23889 cut-off events. For 637832/649137 co-relation queries the response was YES. Maximal size of possible extension queue 2905. Compared 418935 event pairs, 1914 based on Foata normal form. 25/22979 useless extension candidates. Maximal degree in co-relation 149624. Up to 5149 conditions per place. [2021-03-25 08:05:41,735 INFO L132 encePairwiseOnDemand]: 98/107 looper letters, 269 selfloop transitions, 238 changer transitions 1/524 dead transitions. [2021-03-25 08:05:41,735 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 218 places, 524 transitions, 13191 flow [2021-03-25 08:05:41,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 08:05:41,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 08:05:41,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 934 transitions. [2021-03-25 08:05:41,738 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8728971962616823 [2021-03-25 08:05:41,738 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 934 transitions. [2021-03-25 08:05:41,738 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 934 transitions. [2021-03-25 08:05:41,738 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:05:41,738 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 934 transitions. [2021-03-25 08:05:41,739 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 93.4) internal successors, (934), 10 states have internal predecessors, (934), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:05:41,740 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 107.0) internal successors, (1177), 11 states have internal predecessors, (1177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:05:41,740 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 107.0) internal successors, (1177), 11 states have internal predecessors, (1177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:05:41,740 INFO L185 Difference]: Start difference. First operand has 209 places, 375 transitions, 8941 flow. Second operand 10 states and 934 transitions. [2021-03-25 08:05:41,740 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 218 places, 524 transitions, 13191 flow [2021-03-25 08:05:44,996 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 215 places, 524 transitions, 12806 flow, removed 130 selfloop flow, removed 3 redundant places. [2021-03-25 08:05:45,004 INFO L241 Difference]: Finished difference. Result has 223 places, 436 transitions, 10986 flow [2021-03-25 08:05:45,004 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=8656, PETRI_DIFFERENCE_MINUEND_PLACES=206, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=375, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=177, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=137, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=10986, PETRI_PLACES=223, PETRI_TRANSITIONS=436} [2021-03-25 08:05:45,004 INFO L343 CegarLoopForPetriNet]: 50 programPoint places, 173 predicate places. [2021-03-25 08:05:45,004 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:05:45,004 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 223 places, 436 transitions, 10986 flow [2021-03-25 08:05:45,005 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 223 places, 436 transitions, 10986 flow [2021-03-25 08:05:45,008 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 222 places, 436 transitions, 10986 flow [2021-03-25 08:05:48,267 INFO L129 PetriNetUnfolder]: 0/12611 cut-off events. [2021-03-25 08:05:48,268 INFO L130 PetriNetUnfolder]: For 239990/246870 co-relation queries the response was YES. [2021-03-25 08:05:48,268 INFO L84 FinitePrefix]: Finished finitePrefix Result has 51389 conditions, 12611 events. 0/12611 cut-off events. For 239990/246870 co-relation queries the response was YES. Maximal size of possible extension queue 1595. Compared 245840 event pairs, 0 based on Foata normal form. 228/12108 useless extension candidates. Maximal degree in co-relation 0. Up to 1309 conditions per place. [2021-03-25 08:05:48,459 INFO L142 LiptonReduction]: Number of co-enabled transitions 3078 [2021-03-25 08:05:48,484 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:05:48,484 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:05:48,484 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 3480 [2021-03-25 08:05:48,485 INFO L480 AbstractCegarLoop]: Abstraction has has 222 places, 436 transitions, 10986 flow [2021-03-25 08:05:48,485 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 89.9) internal successors, (899), 10 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:05:48,485 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:05:48,485 INFO L263 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] [2021-03-25 08:05:48,485 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-03-25 08:05:48,485 INFO L428 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr3INUSE_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]=== [2021-03-25 08:05:48,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:05:48,485 INFO L82 PathProgramCache]: Analyzing trace with hash -742751195, now seen corresponding path program 14 times [2021-03-25 08:05:48,485 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:05:48,486 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833072916] [2021-03-25 08:05:48,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:05:48,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:05:48,503 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:05:48,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:05:48,503 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:05:48,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:05:48,507 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:05:48,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:05:48,513 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:05:48,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 08:05:48,522 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-25 08:05:48,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 08:05:48,535 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-25 08:05:48,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-25 08:05:48,552 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-25 08:05:48,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-25 08:05:48,589 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-25 08:05:48,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-25 08:05:48,618 INFO L142 QuantifierPusher]: treesize reduction 63, result has 47.5 percent of original size [2021-03-25 08:05:48,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-25 08:05:48,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:05:48,645 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [833072916] [2021-03-25 08:05:48,645 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:05:48,645 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 08:05:48,645 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271541661] [2021-03-25 08:05:48,645 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 08:05:48,646 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:05:48,646 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 08:05:48,646 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-03-25 08:05:48,646 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 107 [2021-03-25 08:05:48,647 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 222 places, 436 transitions, 10986 flow. Second operand has 10 states, 10 states have (on average 89.9) internal successors, (899), 10 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:05:48,647 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:05:48,647 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 107 [2021-03-25 08:05:48,647 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:05:55,843 INFO L129 PetriNetUnfolder]: 4071/24168 cut-off events. [2021-03-25 08:05:55,843 INFO L130 PetriNetUnfolder]: For 726016/736855 co-relation queries the response was YES. [2021-03-25 08:05:56,027 INFO L84 FinitePrefix]: Finished finitePrefix Result has 159466 conditions, 24168 events. 4071/24168 cut-off events. For 726016/736855 co-relation queries the response was YES. Maximal size of possible extension queue 3055. Compared 425920 event pairs, 2127 based on Foata normal form. 22/23427 useless extension candidates. Maximal degree in co-relation 159369. Up to 4617 conditions per place. [2021-03-25 08:05:56,113 INFO L132 encePairwiseOnDemand]: 98/107 looper letters, 304 selfloop transitions, 276 changer transitions 2/598 dead transitions. [2021-03-25 08:05:56,113 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 231 places, 598 transitions, 15970 flow [2021-03-25 08:05:56,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 08:05:56,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 08:05:56,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 934 transitions. [2021-03-25 08:05:56,128 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8728971962616823 [2021-03-25 08:05:56,128 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 934 transitions. [2021-03-25 08:05:56,128 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 934 transitions. [2021-03-25 08:05:56,128 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:05:56,128 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 934 transitions. [2021-03-25 08:05:56,129 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 93.4) internal successors, (934), 10 states have internal predecessors, (934), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:05:56,130 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 107.0) internal successors, (1177), 11 states have internal predecessors, (1177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:05:56,130 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 107.0) internal successors, (1177), 11 states have internal predecessors, (1177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:05:56,130 INFO L185 Difference]: Start difference. First operand has 222 places, 436 transitions, 10986 flow. Second operand 10 states and 934 transitions. [2021-03-25 08:05:56,130 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 231 places, 598 transitions, 15970 flow [2021-03-25 08:05:59,424 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 229 places, 598 transitions, 15516 flow, removed 165 selfloop flow, removed 2 redundant places. [2021-03-25 08:05:59,432 INFO L241 Difference]: Finished difference. Result has 237 places, 469 transitions, 12534 flow [2021-03-25 08:05:59,433 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=10622, PETRI_DIFFERENCE_MINUEND_PLACES=220, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=436, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=243, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=160, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=12534, PETRI_PLACES=237, PETRI_TRANSITIONS=469} [2021-03-25 08:05:59,433 INFO L343 CegarLoopForPetriNet]: 50 programPoint places, 187 predicate places. [2021-03-25 08:05:59,433 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:05:59,433 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 237 places, 469 transitions, 12534 flow [2021-03-25 08:05:59,433 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 237 places, 469 transitions, 12534 flow [2021-03-25 08:05:59,437 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 236 places, 469 transitions, 12534 flow [2021-03-25 08:06:03,138 INFO L129 PetriNetUnfolder]: 0/13440 cut-off events. [2021-03-25 08:06:03,139 INFO L130 PetriNetUnfolder]: For 285060/292478 co-relation queries the response was YES. [2021-03-25 08:06:03,139 INFO L84 FinitePrefix]: Finished finitePrefix Result has 57637 conditions, 13440 events. 0/13440 cut-off events. For 285060/292478 co-relation queries the response was YES. Maximal size of possible extension queue 1679. Compared 264532 event pairs, 0 based on Foata normal form. 172/12774 useless extension candidates. Maximal degree in co-relation 0. Up to 1397 conditions per place. [2021-03-25 08:06:03,364 INFO L142 LiptonReduction]: Number of co-enabled transitions 3334 [2021-03-25 08:06:03,393 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:06:03,393 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:06:03,393 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 3960 [2021-03-25 08:06:03,393 INFO L480 AbstractCegarLoop]: Abstraction has has 236 places, 469 transitions, 12534 flow [2021-03-25 08:06:03,393 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 89.9) internal successors, (899), 10 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:06:03,393 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:06:03,393 INFO L263 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] [2021-03-25 08:06:03,393 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-03-25 08:06:03,393 INFO L428 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr3INUSE_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]=== [2021-03-25 08:06:03,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:06:03,394 INFO L82 PathProgramCache]: Analyzing trace with hash -1845019367, now seen corresponding path program 15 times [2021-03-25 08:06:03,394 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:06:03,394 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436636477] [2021-03-25 08:06:03,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:06:03,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:06:03,408 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:06:03,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:06:03,408 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:06:03,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:06:03,412 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-25 08:06:03,413 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 08:06:03,420 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-25 08:06:03,420 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 08:06:03,429 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-25 08:06:03,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-25 08:06:03,453 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-25 08:06:03,453 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-25 08:06:03,470 INFO L142 QuantifierPusher]: treesize reduction 45, result has 51.1 percent of original size [2021-03-25 08:06:03,471 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-25 08:06:03,493 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-25 08:06:03,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-25 08:06:03,520 INFO L142 QuantifierPusher]: treesize reduction 63, result has 47.5 percent of original size [2021-03-25 08:06:03,521 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-25 08:06:03,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:06:03,546 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436636477] [2021-03-25 08:06:03,547 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:06:03,547 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 08:06:03,547 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728732935] [2021-03-25 08:06:03,547 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 08:06:03,547 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:06:03,547 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 08:06:03,547 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-03-25 08:06:03,548 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 107 [2021-03-25 08:06:03,548 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 236 places, 469 transitions, 12534 flow. Second operand has 10 states, 10 states have (on average 89.9) internal successors, (899), 10 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:06:03,548 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:06:03,548 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 107 [2021-03-25 08:06:03,548 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:06:11,213 INFO L129 PetriNetUnfolder]: 4075/24720 cut-off events. [2021-03-25 08:06:11,213 INFO L130 PetriNetUnfolder]: For 828291/839384 co-relation queries the response was YES. [2021-03-25 08:06:11,377 INFO L84 FinitePrefix]: Finished finitePrefix Result has 169753 conditions, 24720 events. 4075/24720 cut-off events. For 828291/839384 co-relation queries the response was YES. Maximal size of possible extension queue 3079. Compared 438444 event pairs, 2089 based on Foata normal form. 29/23895 useless extension candidates. Maximal degree in co-relation 169649. Up to 5064 conditions per place. [2021-03-25 08:06:11,453 INFO L132 encePairwiseOnDemand]: 98/107 looper letters, 302 selfloop transitions, 282 changer transitions 1/601 dead transitions. [2021-03-25 08:06:11,453 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 245 places, 601 transitions, 16764 flow [2021-03-25 08:06:11,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 08:06:11,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 08:06:11,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 934 transitions. [2021-03-25 08:06:11,456 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8728971962616823 [2021-03-25 08:06:11,456 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 934 transitions. [2021-03-25 08:06:11,456 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 934 transitions. [2021-03-25 08:06:11,457 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:06:11,457 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 934 transitions. [2021-03-25 08:06:11,457 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 93.4) internal successors, (934), 10 states have internal predecessors, (934), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:06:11,458 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 107.0) internal successors, (1177), 11 states have internal predecessors, (1177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:06:11,458 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 107.0) internal successors, (1177), 11 states have internal predecessors, (1177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:06:11,458 INFO L185 Difference]: Start difference. First operand has 236 places, 469 transitions, 12534 flow. Second operand 10 states and 934 transitions. [2021-03-25 08:06:11,458 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 245 places, 601 transitions, 16764 flow [2021-03-25 08:06:16,541 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 242 places, 601 transitions, 16344 flow, removed 147 selfloop flow, removed 3 redundant places. [2021-03-25 08:06:16,551 INFO L241 Difference]: Finished difference. Result has 250 places, 508 transitions, 14238 flow [2021-03-25 08:06:16,552 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=12208, PETRI_DIFFERENCE_MINUEND_PLACES=233, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=469, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=243, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=187, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=14238, PETRI_PLACES=250, PETRI_TRANSITIONS=508} [2021-03-25 08:06:16,552 INFO L343 CegarLoopForPetriNet]: 50 programPoint places, 200 predicate places. [2021-03-25 08:06:16,552 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:06:16,552 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 250 places, 508 transitions, 14238 flow [2021-03-25 08:06:16,552 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 250 places, 508 transitions, 14238 flow [2021-03-25 08:06:16,556 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 249 places, 508 transitions, 14238 flow [2021-03-25 08:06:20,577 INFO L129 PetriNetUnfolder]: 0/13831 cut-off events. [2021-03-25 08:06:20,577 INFO L130 PetriNetUnfolder]: For 319754/328931 co-relation queries the response was YES. [2021-03-25 08:06:20,577 INFO L84 FinitePrefix]: Finished finitePrefix Result has 61639 conditions, 13831 events. 0/13831 cut-off events. For 319754/328931 co-relation queries the response was YES. Maximal size of possible extension queue 1752. Compared 273715 event pairs, 0 based on Foata normal form. 145/13098 useless extension candidates. Maximal degree in co-relation 0. Up to 1442 conditions per place. [2021-03-25 08:06:20,717 INFO L142 LiptonReduction]: Number of co-enabled transitions 3718 [2021-03-25 08:06:20,753 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:06:20,753 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:06:20,753 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 4201 [2021-03-25 08:06:20,753 INFO L480 AbstractCegarLoop]: Abstraction has has 249 places, 508 transitions, 14238 flow [2021-03-25 08:06:20,753 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 89.9) internal successors, (899), 10 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:06:20,753 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:06:20,753 INFO L263 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] [2021-03-25 08:06:20,754 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-03-25 08:06:20,754 INFO L428 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr3INUSE_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]=== [2021-03-25 08:06:20,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:06:20,754 INFO L82 PathProgramCache]: Analyzing trace with hash 565321301, now seen corresponding path program 16 times [2021-03-25 08:06:20,754 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:06:20,754 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133974942] [2021-03-25 08:06:20,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:06:20,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:06:20,766 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:06:20,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:06:20,767 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:06:20,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:06:20,771 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:06:20,771 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:06:20,776 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:06:20,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-25 08:06:20,785 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-25 08:06:20,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 08:06:20,797 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-25 08:06:20,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 08:06:20,813 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-25 08:06:20,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-25 08:06:20,853 INFO L142 QuantifierPusher]: treesize reduction 54, result has 50.5 percent of original size [2021-03-25 08:06:20,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-25 08:06:20,883 INFO L142 QuantifierPusher]: treesize reduction 63, result has 47.5 percent of original size [2021-03-25 08:06:20,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-25 08:06:20,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:06:20,912 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2133974942] [2021-03-25 08:06:20,912 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:06:20,912 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 08:06:20,912 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232180565] [2021-03-25 08:06:20,913 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 08:06:20,913 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:06:20,913 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 08:06:20,913 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-03-25 08:06:20,914 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 107 [2021-03-25 08:06:20,914 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 249 places, 508 transitions, 14238 flow. Second operand has 10 states, 10 states have (on average 89.9) internal successors, (899), 10 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:06:20,914 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:06:20,914 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 107 [2021-03-25 08:06:20,914 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:06:29,337 INFO L129 PetriNetUnfolder]: 4026/25615 cut-off events. [2021-03-25 08:06:29,338 INFO L130 PetriNetUnfolder]: For 915494/924736 co-relation queries the response was YES. [2021-03-25 08:06:29,516 INFO L84 FinitePrefix]: Finished finitePrefix Result has 179844 conditions, 25615 events. 4026/25615 cut-off events. For 915494/924736 co-relation queries the response was YES. Maximal size of possible extension queue 3245. Compared 461098 event pairs, 2210 based on Foata normal form. 29/24731 useless extension candidates. Maximal degree in co-relation 179734. Up to 4766 conditions per place. [2021-03-25 08:06:29,595 INFO L132 encePairwiseOnDemand]: 98/107 looper letters, 349 selfloop transitions, 313 changer transitions 2/680 dead transitions. [2021-03-25 08:06:29,595 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 258 places, 680 transitions, 20215 flow [2021-03-25 08:06:29,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 08:06:29,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 08:06:29,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 934 transitions. [2021-03-25 08:06:29,596 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8728971962616823 [2021-03-25 08:06:29,596 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 934 transitions. [2021-03-25 08:06:29,596 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 934 transitions. [2021-03-25 08:06:29,596 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:06:29,596 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 934 transitions. [2021-03-25 08:06:29,597 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 93.4) internal successors, (934), 10 states have internal predecessors, (934), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:06:29,598 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 107.0) internal successors, (1177), 11 states have internal predecessors, (1177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:06:29,598 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 107.0) internal successors, (1177), 11 states have internal predecessors, (1177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:06:29,598 INFO L185 Difference]: Start difference. First operand has 249 places, 508 transitions, 14238 flow. Second operand 10 states and 934 transitions. [2021-03-25 08:06:29,598 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 258 places, 680 transitions, 20215 flow [2021-03-25 08:06:34,881 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 256 places, 680 transitions, 19767 flow, removed 162 selfloop flow, removed 2 redundant places. [2021-03-25 08:06:34,893 INFO L241 Difference]: Finished difference. Result has 263 places, 556 transitions, 16293 flow [2021-03-25 08:06:34,893 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=13902, PETRI_DIFFERENCE_MINUEND_PLACES=247, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=508, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=265, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=195, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=16293, PETRI_PLACES=263, PETRI_TRANSITIONS=556} [2021-03-25 08:06:34,893 INFO L343 CegarLoopForPetriNet]: 50 programPoint places, 213 predicate places. [2021-03-25 08:06:34,893 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:06:34,893 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 263 places, 556 transitions, 16293 flow [2021-03-25 08:06:34,893 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 263 places, 556 transitions, 16293 flow [2021-03-25 08:06:34,898 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 262 places, 556 transitions, 16293 flow [2021-03-25 08:06:39,275 INFO L129 PetriNetUnfolder]: 0/15066 cut-off events. [2021-03-25 08:06:39,275 INFO L130 PetriNetUnfolder]: For 403476/412766 co-relation queries the response was YES. [2021-03-25 08:06:39,275 INFO L84 FinitePrefix]: Finished finitePrefix Result has 70652 conditions, 15066 events. 0/15066 cut-off events. For 403476/412766 co-relation queries the response was YES. Maximal size of possible extension queue 1897. Compared 301603 event pairs, 0 based on Foata normal form. 220/14425 useless extension candidates. Maximal degree in co-relation 0. Up to 1565 conditions per place. [2021-03-25 08:06:39,408 INFO L142 LiptonReduction]: Number of co-enabled transitions 4060 [2021-03-25 08:06:39,448 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:06:39,448 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:06:39,449 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 4556 [2021-03-25 08:06:39,449 INFO L480 AbstractCegarLoop]: Abstraction has has 262 places, 556 transitions, 16293 flow [2021-03-25 08:06:39,449 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 89.9) internal successors, (899), 10 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:06:39,449 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:06:39,449 INFO L263 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] [2021-03-25 08:06:39,449 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-03-25 08:06:39,449 INFO L428 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr3INUSE_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]=== [2021-03-25 08:06:39,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:06:39,449 INFO L82 PathProgramCache]: Analyzing trace with hash 1425841649, now seen corresponding path program 17 times [2021-03-25 08:06:39,450 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:06:39,450 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569929736] [2021-03-25 08:06:39,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:06:39,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:06:39,470 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:06:39,470 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:06:39,470 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:06:39,470 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:06:39,474 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-25 08:06:39,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 08:06:39,480 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-25 08:06:39,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 08:06:39,488 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-25 08:06:39,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-25 08:06:39,510 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-25 08:06:39,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-25 08:06:39,528 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-25 08:06:39,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-25 08:06:39,550 INFO L142 QuantifierPusher]: treesize reduction 54, result has 50.5 percent of original size [2021-03-25 08:06:39,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-25 08:06:39,579 INFO L142 QuantifierPusher]: treesize reduction 63, result has 47.5 percent of original size [2021-03-25 08:06:39,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-25 08:06:39,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:06:39,607 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569929736] [2021-03-25 08:06:39,607 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:06:39,607 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 08:06:39,607 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554952721] [2021-03-25 08:06:39,608 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 08:06:39,608 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:06:39,608 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 08:06:39,608 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-03-25 08:06:39,608 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 107 [2021-03-25 08:06:39,609 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 262 places, 556 transitions, 16293 flow. Second operand has 10 states, 10 states have (on average 89.9) internal successors, (899), 10 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:06:39,609 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:06:39,609 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 107 [2021-03-25 08:06:39,609 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:06:48,283 INFO L129 PetriNetUnfolder]: 4012/26060 cut-off events. [2021-03-25 08:06:48,283 INFO L130 PetriNetUnfolder]: For 1010931/1020615 co-relation queries the response was YES. [2021-03-25 08:06:48,480 INFO L84 FinitePrefix]: Finished finitePrefix Result has 187337 conditions, 26060 events. 4012/26060 cut-off events. For 1010931/1020615 co-relation queries the response was YES. Maximal size of possible extension queue 3243. Compared 471693 event pairs, 2190 based on Foata normal form. 40/25136 useless extension candidates. Maximal degree in co-relation 187221. Up to 5064 conditions per place. [2021-03-25 08:06:48,648 INFO L132 encePairwiseOnDemand]: 98/107 looper letters, 314 selfloop transitions, 349 changer transitions 1/680 dead transitions. [2021-03-25 08:06:48,648 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 271 places, 680 transitions, 20987 flow [2021-03-25 08:06:48,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 08:06:48,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 08:06:48,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 934 transitions. [2021-03-25 08:06:48,649 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8728971962616823 [2021-03-25 08:06:48,649 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 934 transitions. [2021-03-25 08:06:48,649 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 934 transitions. [2021-03-25 08:06:48,650 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:06:48,650 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 934 transitions. [2021-03-25 08:06:48,650 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 93.4) internal successors, (934), 10 states have internal predecessors, (934), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:06:48,651 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 107.0) internal successors, (1177), 11 states have internal predecessors, (1177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:06:48,651 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 107.0) internal successors, (1177), 11 states have internal predecessors, (1177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:06:48,651 INFO L185 Difference]: Start difference. First operand has 262 places, 556 transitions, 16293 flow. Second operand 10 states and 934 transitions. [2021-03-25 08:06:48,652 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 271 places, 680 transitions, 20987 flow [2021-03-25 08:06:54,916 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 267 places, 680 transitions, 20203 flow, removed 182 selfloop flow, removed 4 redundant places. [2021-03-25 08:06:54,927 INFO L241 Difference]: Finished difference. Result has 274 places, 583 transitions, 17514 flow [2021-03-25 08:06:54,928 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=15645, PETRI_DIFFERENCE_MINUEND_PLACES=258, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=556, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=322, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=207, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=17514, PETRI_PLACES=274, PETRI_TRANSITIONS=583} [2021-03-25 08:06:54,928 INFO L343 CegarLoopForPetriNet]: 50 programPoint places, 224 predicate places. [2021-03-25 08:06:54,928 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:06:54,928 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 274 places, 583 transitions, 17514 flow [2021-03-25 08:06:54,928 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 274 places, 583 transitions, 17514 flow [2021-03-25 08:06:54,933 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 273 places, 583 transitions, 17514 flow [2021-03-25 08:06:59,076 INFO L129 PetriNetUnfolder]: 0/15283 cut-off events. [2021-03-25 08:06:59,076 INFO L130 PetriNetUnfolder]: For 426354/435985 co-relation queries the response was YES. [2021-03-25 08:06:59,076 INFO L84 FinitePrefix]: Finished finitePrefix Result has 73270 conditions, 15283 events. 0/15283 cut-off events. For 426354/435985 co-relation queries the response was YES. Maximal size of possible extension queue 1983. Compared 306626 event pairs, 0 based on Foata normal form. 204/14609 useless extension candidates. Maximal degree in co-relation 0. Up to 1589 conditions per place. [2021-03-25 08:06:59,213 INFO L142 LiptonReduction]: Number of co-enabled transitions 4360 [2021-03-25 08:06:59,256 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:06:59,256 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:06:59,256 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 4328 [2021-03-25 08:06:59,257 INFO L480 AbstractCegarLoop]: Abstraction has has 273 places, 583 transitions, 17514 flow [2021-03-25 08:06:59,257 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 89.9) internal successors, (899), 10 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:06:59,257 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:06:59,257 INFO L263 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] [2021-03-25 08:06:59,257 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-03-25 08:06:59,257 INFO L428 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr3INUSE_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]=== [2021-03-25 08:06:59,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:06:59,257 INFO L82 PathProgramCache]: Analyzing trace with hash -1009115031, now seen corresponding path program 18 times [2021-03-25 08:06:59,258 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:06:59,258 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675610405] [2021-03-25 08:06:59,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:06:59,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:06:59,270 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:06:59,270 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:06:59,270 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:06:59,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:06:59,274 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:06:59,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:06:59,280 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-25 08:06:59,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 08:06:59,289 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-25 08:06:59,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 08:06:59,301 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-25 08:06:59,302 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-25 08:06:59,343 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-25 08:06:59,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-25 08:06:59,393 INFO L142 QuantifierPusher]: treesize reduction 54, result has 50.5 percent of original size [2021-03-25 08:06:59,394 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-25 08:06:59,424 INFO L142 QuantifierPusher]: treesize reduction 63, result has 47.5 percent of original size [2021-03-25 08:06:59,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-25 08:06:59,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:06:59,452 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675610405] [2021-03-25 08:06:59,452 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:06:59,452 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 08:06:59,452 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921185666] [2021-03-25 08:06:59,452 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 08:06:59,452 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:06:59,453 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 08:06:59,453 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-03-25 08:06:59,454 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 107 [2021-03-25 08:06:59,454 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 273 places, 583 transitions, 17514 flow. Second operand has 10 states, 10 states have (on average 89.9) internal successors, (899), 10 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:06:59,454 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:06:59,454 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 107 [2021-03-25 08:06:59,454 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:07:08,585 INFO L129 PetriNetUnfolder]: 4056/26505 cut-off events. [2021-03-25 08:07:08,585 INFO L130 PetriNetUnfolder]: For 1077000/1087137 co-relation queries the response was YES. [2021-03-25 08:07:08,787 INFO L84 FinitePrefix]: Finished finitePrefix Result has 195139 conditions, 26505 events. 4056/26505 cut-off events. For 1077000/1087137 co-relation queries the response was YES. Maximal size of possible extension queue 3360. Compared 482286 event pairs, 2267 based on Foata normal form. 46/25579 useless extension candidates. Maximal degree in co-relation 195018. Up to 4885 conditions per place. [2021-03-25 08:07:08,867 INFO L132 encePairwiseOnDemand]: 98/107 looper letters, 320 selfloop transitions, 384 changer transitions 2/722 dead transitions. [2021-03-25 08:07:08,867 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 282 places, 722 transitions, 23098 flow [2021-03-25 08:07:08,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 08:07:08,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 08:07:08,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 934 transitions. [2021-03-25 08:07:08,868 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8728971962616823 [2021-03-25 08:07:08,868 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 934 transitions. [2021-03-25 08:07:08,869 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 934 transitions. [2021-03-25 08:07:08,869 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:07:08,869 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 934 transitions. [2021-03-25 08:07:08,870 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 93.4) internal successors, (934), 10 states have internal predecessors, (934), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:07:08,870 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 107.0) internal successors, (1177), 11 states have internal predecessors, (1177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:07:08,870 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 107.0) internal successors, (1177), 11 states have internal predecessors, (1177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:07:08,870 INFO L185 Difference]: Start difference. First operand has 273 places, 583 transitions, 17514 flow. Second operand 10 states and 934 transitions. [2021-03-25 08:07:08,870 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 282 places, 722 transitions, 23098 flow [2021-03-25 08:07:16,392 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 279 places, 722 transitions, 22301 flow, removed 183 selfloop flow, removed 3 redundant places. [2021-03-25 08:07:16,404 INFO L241 Difference]: Finished difference. Result has 286 places, 636 transitions, 19938 flow [2021-03-25 08:07:16,405 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=16901, PETRI_DIFFERENCE_MINUEND_PLACES=270, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=583, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=331, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=199, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=19938, PETRI_PLACES=286, PETRI_TRANSITIONS=636} [2021-03-25 08:07:16,405 INFO L343 CegarLoopForPetriNet]: 50 programPoint places, 236 predicate places. [2021-03-25 08:07:16,405 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:07:16,405 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 286 places, 636 transitions, 19938 flow [2021-03-25 08:07:16,405 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 286 places, 636 transitions, 19938 flow [2021-03-25 08:07:16,411 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 285 places, 636 transitions, 19938 flow [2021-03-25 08:07:20,972 INFO L129 PetriNetUnfolder]: 0/15800 cut-off events. [2021-03-25 08:07:20,973 INFO L130 PetriNetUnfolder]: For 478032/488974 co-relation queries the response was YES. [2021-03-25 08:07:20,973 INFO L84 FinitePrefix]: Finished finitePrefix Result has 78355 conditions, 15800 events. 0/15800 cut-off events. For 478032/488974 co-relation queries the response was YES. Maximal size of possible extension queue 2062. Compared 318542 event pairs, 0 based on Foata normal form. 217/15106 useless extension candidates. Maximal degree in co-relation 0. Up to 1660 conditions per place. [2021-03-25 08:07:21,120 INFO L142 LiptonReduction]: Number of co-enabled transitions 4742 [2021-03-25 08:07:21,173 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:07:21,173 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:07:21,173 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 4768 [2021-03-25 08:07:21,174 INFO L480 AbstractCegarLoop]: Abstraction has has 285 places, 636 transitions, 19938 flow [2021-03-25 08:07:21,174 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 89.9) internal successors, (899), 10 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:07:21,174 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:07:21,174 INFO L263 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] [2021-03-25 08:07:21,174 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-03-25 08:07:21,174 INFO L428 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr3INUSE_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]=== [2021-03-25 08:07:21,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:07:21,174 INFO L82 PathProgramCache]: Analyzing trace with hash 231563487, now seen corresponding path program 19 times [2021-03-25 08:07:21,175 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:07:21,175 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943159740] [2021-03-25 08:07:21,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:07:21,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:07:21,190 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:07:21,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:07:21,191 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:07:21,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:07:21,194 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-25 08:07:21,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 08:07:21,201 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-25 08:07:21,202 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 08:07:21,211 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-25 08:07:21,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 08:07:21,226 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-25 08:07:21,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 08:07:21,243 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-25 08:07:21,244 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-25 08:07:21,282 INFO L142 QuantifierPusher]: treesize reduction 54, result has 50.5 percent of original size [2021-03-25 08:07:21,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-25 08:07:21,316 INFO L142 QuantifierPusher]: treesize reduction 63, result has 47.5 percent of original size [2021-03-25 08:07:21,316 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-25 08:07:21,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:07:21,343 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943159740] [2021-03-25 08:07:21,343 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:07:21,343 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 08:07:21,344 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033511547] [2021-03-25 08:07:21,344 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 08:07:21,344 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:07:21,344 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 08:07:21,344 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-03-25 08:07:21,344 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 107 [2021-03-25 08:07:21,345 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 285 places, 636 transitions, 19938 flow. Second operand has 10 states, 10 states have (on average 89.9) internal successors, (899), 10 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:07:21,345 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:07:21,345 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 107 [2021-03-25 08:07:21,345 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:07:31,235 INFO L129 PetriNetUnfolder]: 4065/26940 cut-off events. [2021-03-25 08:07:31,235 INFO L130 PetriNetUnfolder]: For 1131303/1141601 co-relation queries the response was YES. [2021-03-25 08:07:31,452 INFO L84 FinitePrefix]: Finished finitePrefix Result has 200450 conditions, 26940 events. 4065/26940 cut-off events. For 1131303/1141601 co-relation queries the response was YES. Maximal size of possible extension queue 3359. Compared 491811 event pairs, 2205 based on Foata normal form. 47/25927 useless extension candidates. Maximal degree in co-relation 200323. Up to 5064 conditions per place. [2021-03-25 08:07:31,535 INFO L132 encePairwiseOnDemand]: 98/107 looper letters, 288 selfloop transitions, 433 changer transitions 2/739 dead transitions. [2021-03-25 08:07:31,536 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 294 places, 739 transitions, 24252 flow [2021-03-25 08:07:31,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 08:07:31,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 08:07:31,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 934 transitions. [2021-03-25 08:07:31,537 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8728971962616823 [2021-03-25 08:07:31,537 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 934 transitions. [2021-03-25 08:07:31,537 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 934 transitions. [2021-03-25 08:07:31,537 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:07:31,537 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 934 transitions. [2021-03-25 08:07:31,538 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 93.4) internal successors, (934), 10 states have internal predecessors, (934), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:07:31,539 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 107.0) internal successors, (1177), 11 states have internal predecessors, (1177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:07:31,539 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 107.0) internal successors, (1177), 11 states have internal predecessors, (1177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:07:31,539 INFO L185 Difference]: Start difference. First operand has 285 places, 636 transitions, 19938 flow. Second operand 10 states and 934 transitions. [2021-03-25 08:07:31,539 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 294 places, 739 transitions, 24252 flow [2021-03-25 08:07:40,015 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 290 places, 739 transitions, 23574 flow, removed 129 selfloop flow, removed 4 redundant places. [2021-03-25 08:07:40,028 INFO L241 Difference]: Finished difference. Result has 296 places, 672 transitions, 21669 flow [2021-03-25 08:07:40,028 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=19382, PETRI_DIFFERENCE_MINUEND_PLACES=281, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=636, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=397, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=203, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=21669, PETRI_PLACES=296, PETRI_TRANSITIONS=672} [2021-03-25 08:07:40,028 INFO L343 CegarLoopForPetriNet]: 50 programPoint places, 246 predicate places. [2021-03-25 08:07:40,029 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:07:40,029 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 296 places, 672 transitions, 21669 flow [2021-03-25 08:07:40,029 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 296 places, 672 transitions, 21669 flow [2021-03-25 08:07:40,035 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 295 places, 672 transitions, 21669 flow [2021-03-25 08:07:43,886 INFO L129 PetriNetUnfolder]: 0/15956 cut-off events. [2021-03-25 08:07:43,887 INFO L130 PetriNetUnfolder]: For 490958/502736 co-relation queries the response was YES. [2021-03-25 08:07:43,887 INFO L84 FinitePrefix]: Finished finitePrefix Result has 79860 conditions, 15956 events. 0/15956 cut-off events. For 490958/502736 co-relation queries the response was YES. Maximal size of possible extension queue 2074. Compared 322011 event pairs, 0 based on Foata normal form. 212/15276 useless extension candidates. Maximal degree in co-relation 0. Up to 1681 conditions per place. [2021-03-25 08:07:44,183 INFO L142 LiptonReduction]: Number of co-enabled transitions 5040 [2021-03-25 08:07:44,245 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:07:44,246 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:07:44,246 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 4217 [2021-03-25 08:07:44,246 INFO L480 AbstractCegarLoop]: Abstraction has has 295 places, 672 transitions, 21669 flow [2021-03-25 08:07:44,246 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 89.9) internal successors, (899), 10 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:07:44,246 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:07:44,246 INFO L263 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] [2021-03-25 08:07:44,246 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-03-25 08:07:44,246 INFO L428 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr3INUSE_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]=== [2021-03-25 08:07:44,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:07:44,247 INFO L82 PathProgramCache]: Analyzing trace with hash -975072863, now seen corresponding path program 20 times [2021-03-25 08:07:44,247 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:07:44,247 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197414061] [2021-03-25 08:07:44,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:07:44,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:07:44,258 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:07:44,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:07:44,259 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:07:44,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:07:44,263 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-25 08:07:44,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 08:07:44,269 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-25 08:07:44,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 08:07:44,279 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-25 08:07:44,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 08:07:44,292 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-25 08:07:44,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-25 08:07:44,321 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-25 08:07:44,321 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-25 08:07:44,364 INFO L142 QuantifierPusher]: treesize reduction 54, result has 50.5 percent of original size [2021-03-25 08:07:44,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-25 08:07:44,394 INFO L142 QuantifierPusher]: treesize reduction 63, result has 47.5 percent of original size [2021-03-25 08:07:44,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-25 08:07:44,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:07:44,420 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197414061] [2021-03-25 08:07:44,420 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:07:44,420 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 08:07:44,420 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761652374] [2021-03-25 08:07:44,420 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 08:07:44,420 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:07:44,420 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 08:07:44,420 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-03-25 08:07:44,421 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 107 [2021-03-25 08:07:44,421 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 295 places, 672 transitions, 21669 flow. Second operand has 10 states, 10 states have (on average 89.9) internal successors, (899), 10 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:07:44,421 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:07:44,421 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 107 [2021-03-25 08:07:44,421 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:07:54,197 INFO L129 PetriNetUnfolder]: 4028/26811 cut-off events. [2021-03-25 08:07:54,197 INFO L130 PetriNetUnfolder]: For 1149441/1159854 co-relation queries the response was YES. [2021-03-25 08:07:54,477 INFO L84 FinitePrefix]: Finished finitePrefix Result has 202090 conditions, 26811 events. 4028/26811 cut-off events. For 1149441/1159854 co-relation queries the response was YES. Maximal size of possible extension queue 3385. Compared 489061 event pairs, 2475 based on Foata normal form. 49/25872 useless extension candidates. Maximal degree in co-relation 201959. Up to 5075 conditions per place. [2021-03-25 08:07:54,567 INFO L132 encePairwiseOnDemand]: 98/107 looper letters, 281 selfloop transitions, 486 changer transitions 2/785 dead transitions. [2021-03-25 08:07:54,567 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 304 places, 785 transitions, 26401 flow [2021-03-25 08:07:54,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 08:07:54,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 08:07:54,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 934 transitions. [2021-03-25 08:07:54,568 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8728971962616823 [2021-03-25 08:07:54,569 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 934 transitions. [2021-03-25 08:07:54,569 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 934 transitions. [2021-03-25 08:07:54,569 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:07:54,569 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 934 transitions. [2021-03-25 08:07:54,570 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 93.4) internal successors, (934), 10 states have internal predecessors, (934), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:07:54,570 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 107.0) internal successors, (1177), 11 states have internal predecessors, (1177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:07:54,570 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 107.0) internal successors, (1177), 11 states have internal predecessors, (1177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:07:54,570 INFO L185 Difference]: Start difference. First operand has 295 places, 672 transitions, 21669 flow. Second operand 10 states and 934 transitions. [2021-03-25 08:07:54,570 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 304 places, 785 transitions, 26401 flow [2021-03-25 08:08:03,802 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 299 places, 785 transitions, 25419 flow, removed 134 selfloop flow, removed 5 redundant places. [2021-03-25 08:08:03,816 INFO L241 Difference]: Finished difference. Result has 306 places, 692 transitions, 22994 flow [2021-03-25 08:08:03,816 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=20761, PETRI_DIFFERENCE_MINUEND_PLACES=290, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=672, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=466, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=186, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=22994, PETRI_PLACES=306, PETRI_TRANSITIONS=692} [2021-03-25 08:08:03,816 INFO L343 CegarLoopForPetriNet]: 50 programPoint places, 256 predicate places. [2021-03-25 08:08:03,817 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:08:03,817 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 306 places, 692 transitions, 22994 flow [2021-03-25 08:08:03,817 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 306 places, 692 transitions, 22994 flow [2021-03-25 08:08:03,823 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 305 places, 692 transitions, 22994 flow [2021-03-25 08:08:08,088 INFO L129 PetriNetUnfolder]: 0/16265 cut-off events. [2021-03-25 08:08:08,089 INFO L130 PetriNetUnfolder]: For 526213/538821 co-relation queries the response was YES. [2021-03-25 08:08:08,089 INFO L84 FinitePrefix]: Finished finitePrefix Result has 82667 conditions, 16265 events. 0/16265 cut-off events. For 526213/538821 co-relation queries the response was YES. Maximal size of possible extension queue 2121. Compared 329302 event pairs, 0 based on Foata normal form. 269/15609 useless extension candidates. Maximal degree in co-relation 0. Up to 1727 conditions per place. [2021-03-25 08:08:08,363 INFO L142 LiptonReduction]: Number of co-enabled transitions 5260 [2021-03-25 08:08:08,423 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:08:08,423 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:08:08,423 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 4606 [2021-03-25 08:08:08,423 INFO L480 AbstractCegarLoop]: Abstraction has has 305 places, 692 transitions, 22994 flow [2021-03-25 08:08:08,424 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 89.9) internal successors, (899), 10 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:08:08,424 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:08:08,424 INFO L263 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] [2021-03-25 08:08:08,424 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-03-25 08:08:08,424 INFO L428 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr3INUSE_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]=== [2021-03-25 08:08:08,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:08:08,424 INFO L82 PathProgramCache]: Analyzing trace with hash 50421295, now seen corresponding path program 21 times [2021-03-25 08:08:08,424 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:08:08,424 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546450251] [2021-03-25 08:08:08,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:08:08,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:08:08,436 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:08:08,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:08:08,436 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:08:08,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:08:08,440 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-25 08:08:08,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 08:08:08,446 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-25 08:08:08,447 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 08:08:08,456 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-25 08:08:08,456 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 08:08:08,469 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-25 08:08:08,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-25 08:08:08,498 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-25 08:08:08,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-25 08:08:08,534 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-25 08:08:08,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-25 08:08:08,571 INFO L142 QuantifierPusher]: treesize reduction 63, result has 47.5 percent of original size [2021-03-25 08:08:08,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-25 08:08:08,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:08:08,597 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546450251] [2021-03-25 08:08:08,598 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:08:08,598 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 08:08:08,598 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552700599] [2021-03-25 08:08:08,598 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 08:08:08,598 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:08:08,598 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 08:08:08,598 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-03-25 08:08:08,599 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 107 [2021-03-25 08:08:08,599 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 305 places, 692 transitions, 22994 flow. Second operand has 10 states, 10 states have (on average 89.9) internal successors, (899), 10 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:08:08,599 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:08:08,599 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 107 [2021-03-25 08:08:08,599 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:08:19,316 INFO L129 PetriNetUnfolder]: 4029/27567 cut-off events. [2021-03-25 08:08:19,317 INFO L130 PetriNetUnfolder]: For 1195065/1205648 co-relation queries the response was YES. [2021-03-25 08:08:19,559 INFO L84 FinitePrefix]: Finished finitePrefix Result has 207737 conditions, 27567 events. 4029/27567 cut-off events. For 1195065/1205648 co-relation queries the response was YES. Maximal size of possible extension queue 3477. Compared 508053 event pairs, 2166 based on Foata normal form. 45/26532 useless extension candidates. Maximal degree in co-relation 207601. Up to 5064 conditions per place. [2021-03-25 08:08:19,644 INFO L132 encePairwiseOnDemand]: 98/107 looper letters, 385 selfloop transitions, 414 changer transitions 1/816 dead transitions. [2021-03-25 08:08:19,645 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 314 places, 816 transitions, 28132 flow [2021-03-25 08:08:19,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 08:08:19,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 08:08:19,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 934 transitions. [2021-03-25 08:08:19,647 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8728971962616823 [2021-03-25 08:08:19,647 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 934 transitions. [2021-03-25 08:08:19,647 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 934 transitions. [2021-03-25 08:08:19,647 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:08:19,647 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 934 transitions. [2021-03-25 08:08:19,648 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 93.4) internal successors, (934), 10 states have internal predecessors, (934), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:08:19,649 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 107.0) internal successors, (1177), 11 states have internal predecessors, (1177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:08:19,649 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 107.0) internal successors, (1177), 11 states have internal predecessors, (1177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:08:19,649 INFO L185 Difference]: Start difference. First operand has 305 places, 692 transitions, 22994 flow. Second operand 10 states and 934 transitions. [2021-03-25 08:08:19,649 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 314 places, 816 transitions, 28132 flow [2021-03-25 08:08:31,077 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 310 places, 816 transitions, 27330 flow, removed 185 selfloop flow, removed 4 redundant places. [2021-03-25 08:08:31,091 INFO L241 Difference]: Finished difference. Result has 316 places, 734 transitions, 24793 flow [2021-03-25 08:08:31,092 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=22394, PETRI_DIFFERENCE_MINUEND_PLACES=301, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=692, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=372, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=278, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=24793, PETRI_PLACES=316, PETRI_TRANSITIONS=734} [2021-03-25 08:08:31,092 INFO L343 CegarLoopForPetriNet]: 50 programPoint places, 266 predicate places. [2021-03-25 08:08:31,092 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:08:31,092 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 316 places, 734 transitions, 24793 flow [2021-03-25 08:08:31,092 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 316 places, 734 transitions, 24793 flow [2021-03-25 08:08:31,099 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 315 places, 734 transitions, 24793 flow [2021-03-25 08:08:35,431 INFO L129 PetriNetUnfolder]: 0/16825 cut-off events. [2021-03-25 08:08:35,431 INFO L130 PetriNetUnfolder]: For 548261/561049 co-relation queries the response was YES. [2021-03-25 08:08:35,431 INFO L84 FinitePrefix]: Finished finitePrefix Result has 86861 conditions, 16825 events. 0/16825 cut-off events. For 548261/561049 co-relation queries the response was YES. Maximal size of possible extension queue 2226. Compared 342304 event pairs, 0 based on Foata normal form. 283/16133 useless extension candidates. Maximal degree in co-relation 0. Up to 1788 conditions per place. [2021-03-25 08:08:35,595 INFO L142 LiptonReduction]: Number of co-enabled transitions 5542 [2021-03-25 08:08:35,665 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:08:35,665 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:08:35,665 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 4573 [2021-03-25 08:08:35,665 INFO L480 AbstractCegarLoop]: Abstraction has has 315 places, 734 transitions, 24793 flow [2021-03-25 08:08:35,666 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 89.9) internal successors, (899), 10 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:08:35,666 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:08:35,666 INFO L263 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] [2021-03-25 08:08:35,666 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-03-25 08:08:35,666 INFO L428 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr3INUSE_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]=== [2021-03-25 08:08:35,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:08:35,666 INFO L82 PathProgramCache]: Analyzing trace with hash -1820257003, now seen corresponding path program 22 times [2021-03-25 08:08:35,666 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:08:35,666 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937548034] [2021-03-25 08:08:35,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:08:35,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:08:35,685 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:08:35,686 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:08:35,686 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:08:35,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:08:35,691 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-25 08:08:35,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 08:08:35,698 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-25 08:08:35,698 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 08:08:35,708 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-25 08:08:35,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 08:08:35,722 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-25 08:08:35,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 08:08:35,740 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-25 08:08:35,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-25 08:08:35,783 INFO L142 QuantifierPusher]: treesize reduction 54, result has 50.5 percent of original size [2021-03-25 08:08:35,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-25 08:08:35,813 INFO L142 QuantifierPusher]: treesize reduction 63, result has 47.5 percent of original size [2021-03-25 08:08:35,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-25 08:08:35,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:08:35,840 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937548034] [2021-03-25 08:08:35,840 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:08:35,840 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 08:08:35,840 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903696226] [2021-03-25 08:08:35,840 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 08:08:35,840 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:08:35,841 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 08:08:35,841 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-03-25 08:08:35,841 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 107 [2021-03-25 08:08:35,841 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 315 places, 734 transitions, 24793 flow. Second operand has 10 states, 10 states have (on average 89.9) internal successors, (899), 10 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:08:35,841 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:08:35,842 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 107 [2021-03-25 08:08:35,842 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:08:46,488 INFO L129 PetriNetUnfolder]: 3997/27776 cut-off events. [2021-03-25 08:08:46,489 INFO L130 PetriNetUnfolder]: For 1201483/1212061 co-relation queries the response was YES. [2021-03-25 08:08:46,738 INFO L84 FinitePrefix]: Finished finitePrefix Result has 209620 conditions, 27776 events. 3997/27776 cut-off events. For 1201483/1212061 co-relation queries the response was YES. Maximal size of possible extension queue 3514. Compared 513570 event pairs, 2334 based on Foata normal form. 55/26759 useless extension candidates. Maximal degree in co-relation 209480. Up to 5075 conditions per place. [2021-03-25 08:08:46,823 INFO L132 encePairwiseOnDemand]: 98/107 looper letters, 264 selfloop transitions, 546 changer transitions 2/828 dead transitions. [2021-03-25 08:08:46,824 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 324 places, 828 transitions, 29083 flow [2021-03-25 08:08:46,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 08:08:46,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 08:08:46,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 934 transitions. [2021-03-25 08:08:46,825 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8728971962616823 [2021-03-25 08:08:46,825 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 934 transitions. [2021-03-25 08:08:46,825 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 934 transitions. [2021-03-25 08:08:46,825 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:08:46,825 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 934 transitions. [2021-03-25 08:08:46,826 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 93.4) internal successors, (934), 10 states have internal predecessors, (934), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:08:46,826 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 107.0) internal successors, (1177), 11 states have internal predecessors, (1177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:08:46,827 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 107.0) internal successors, (1177), 11 states have internal predecessors, (1177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:08:46,827 INFO L185 Difference]: Start difference. First operand has 315 places, 734 transitions, 24793 flow. Second operand 10 states and 934 transitions. [2021-03-25 08:08:46,827 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 324 places, 828 transitions, 29083 flow [2021-03-25 08:08:57,130 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 320 places, 828 transitions, 28208 flow, removed 109 selfloop flow, removed 4 redundant places. [2021-03-25 08:08:57,146 INFO L241 Difference]: Finished difference. Result has 326 places, 756 transitions, 26138 flow [2021-03-25 08:08:57,147 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=23996, PETRI_DIFFERENCE_MINUEND_PLACES=311, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=734, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=524, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=188, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=26138, PETRI_PLACES=326, PETRI_TRANSITIONS=756} [2021-03-25 08:08:57,147 INFO L343 CegarLoopForPetriNet]: 50 programPoint places, 276 predicate places. [2021-03-25 08:08:57,147 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:08:57,147 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 326 places, 756 transitions, 26138 flow [2021-03-25 08:08:57,147 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 326 places, 756 transitions, 26138 flow [2021-03-25 08:08:57,155 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 325 places, 756 transitions, 26138 flow [2021-03-25 08:09:01,403 INFO L129 PetriNetUnfolder]: 0/17181 cut-off events. [2021-03-25 08:09:01,404 INFO L130 PetriNetUnfolder]: For 583923/597878 co-relation queries the response was YES. [2021-03-25 08:09:01,404 INFO L84 FinitePrefix]: Finished finitePrefix Result has 89882 conditions, 17181 events. 0/17181 cut-off events. For 583923/597878 co-relation queries the response was YES. Maximal size of possible extension queue 2270. Compared 350615 event pairs, 0 based on Foata normal form. 291/16467 useless extension candidates. Maximal degree in co-relation 0. Up to 1830 conditions per place. [2021-03-25 08:09:01,556 INFO L142 LiptonReduction]: Number of co-enabled transitions 5752 [2021-03-25 08:09:01,629 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:09:01,630 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:09:01,630 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 4483 [2021-03-25 08:09:01,630 INFO L480 AbstractCegarLoop]: Abstraction has has 325 places, 756 transitions, 26138 flow [2021-03-25 08:09:01,630 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 89.9) internal successors, (899), 10 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:09:01,630 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:09:01,630 INFO L263 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] [2021-03-25 08:09:01,630 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-03-25 08:09:01,630 INFO L428 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr3INUSE_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]=== [2021-03-25 08:09:01,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:09:01,631 INFO L82 PathProgramCache]: Analyzing trace with hash -362432279, now seen corresponding path program 23 times [2021-03-25 08:09:01,631 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:09:01,631 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586015143] [2021-03-25 08:09:01,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:09:01,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:09:01,642 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:09:01,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:09:01,642 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:09:01,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:09:01,646 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-25 08:09:01,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 08:09:01,652 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-25 08:09:01,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 08:09:01,661 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-25 08:09:01,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 08:09:01,676 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-25 08:09:01,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-25 08:09:01,696 INFO L142 QuantifierPusher]: treesize reduction 45, result has 51.1 percent of original size [2021-03-25 08:09:01,697 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-25 08:09:01,722 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-25 08:09:01,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-25 08:09:01,749 INFO L142 QuantifierPusher]: treesize reduction 63, result has 47.5 percent of original size [2021-03-25 08:09:01,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-25 08:09:01,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:09:01,774 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586015143] [2021-03-25 08:09:01,774 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:09:01,774 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 08:09:01,774 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003705239] [2021-03-25 08:09:01,774 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 08:09:01,774 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:09:01,776 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 08:09:01,776 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-03-25 08:09:01,776 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 107 [2021-03-25 08:09:01,776 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 325 places, 756 transitions, 26138 flow. Second operand has 10 states, 10 states have (on average 89.9) internal successors, (899), 10 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:09:01,776 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:09:01,777 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 107 [2021-03-25 08:09:01,777 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:09:12,935 INFO L129 PetriNetUnfolder]: 3991/27841 cut-off events. [2021-03-25 08:09:12,935 INFO L130 PetriNetUnfolder]: For 1216017/1226777 co-relation queries the response was YES. [2021-03-25 08:09:13,191 INFO L84 FinitePrefix]: Finished finitePrefix Result has 210875 conditions, 27841 events. 3991/27841 cut-off events. For 1216017/1226777 co-relation queries the response was YES. Maximal size of possible extension queue 3522. Compared 515320 event pairs, 2312 based on Foata normal form. 60/26813 useless extension candidates. Maximal degree in co-relation 210730. Up to 5075 conditions per place. [2021-03-25 08:09:13,276 INFO L132 encePairwiseOnDemand]: 98/107 looper letters, 234 selfloop transitions, 575 changer transitions 1/826 dead transitions. [2021-03-25 08:09:13,276 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 334 places, 826 transitions, 29776 flow [2021-03-25 08:09:13,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 08:09:13,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 08:09:13,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 934 transitions. [2021-03-25 08:09:13,277 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8728971962616823 [2021-03-25 08:09:13,277 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 934 transitions. [2021-03-25 08:09:13,277 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 934 transitions. [2021-03-25 08:09:13,278 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:09:13,278 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 934 transitions. [2021-03-25 08:09:13,278 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 93.4) internal successors, (934), 10 states have internal predecessors, (934), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:09:13,279 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 107.0) internal successors, (1177), 11 states have internal predecessors, (1177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:09:13,279 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 107.0) internal successors, (1177), 11 states have internal predecessors, (1177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:09:13,279 INFO L185 Difference]: Start difference. First operand has 325 places, 756 transitions, 26138 flow. Second operand 10 states and 934 transitions. [2021-03-25 08:09:13,279 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 334 places, 826 transitions, 29776 flow [2021-03-25 08:09:23,985 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 329 places, 826 transitions, 28701 flow, removed 140 selfloop flow, removed 5 redundant places. [2021-03-25 08:09:24,001 INFO L241 Difference]: Finished difference. Result has 335 places, 781 transitions, 27549 flow [2021-03-25 08:09:24,002 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=25163, PETRI_DIFFERENCE_MINUEND_PLACES=320, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=756, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=550, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=181, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=27549, PETRI_PLACES=335, PETRI_TRANSITIONS=781} [2021-03-25 08:09:24,002 INFO L343 CegarLoopForPetriNet]: 50 programPoint places, 285 predicate places. [2021-03-25 08:09:24,002 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:09:24,002 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 335 places, 781 transitions, 27549 flow [2021-03-25 08:09:24,002 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 335 places, 781 transitions, 27549 flow [2021-03-25 08:09:24,010 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 334 places, 781 transitions, 27549 flow [2021-03-25 08:09:28,394 INFO L129 PetriNetUnfolder]: 0/17229 cut-off events. [2021-03-25 08:09:28,395 INFO L130 PetriNetUnfolder]: For 584596/600436 co-relation queries the response was YES. [2021-03-25 08:09:28,395 INFO L84 FinitePrefix]: Finished finitePrefix Result has 90241 conditions, 17229 events. 0/17229 cut-off events. For 584596/600436 co-relation queries the response was YES. Maximal size of possible extension queue 2213. Compared 351324 event pairs, 0 based on Foata normal form. 288/16381 useless extension candidates. Maximal degree in co-relation 0. Up to 1836 conditions per place. [2021-03-25 08:09:28,595 INFO L142 LiptonReduction]: Number of co-enabled transitions 6006 [2021-03-25 08:09:28,676 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:09:28,676 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:09:28,676 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 4674 [2021-03-25 08:09:28,677 INFO L480 AbstractCegarLoop]: Abstraction has has 334 places, 781 transitions, 27549 flow [2021-03-25 08:09:28,677 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 89.9) internal successors, (899), 10 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:09:28,677 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:09:28,677 INFO L263 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] [2021-03-25 08:09:28,677 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-03-25 08:09:28,677 INFO L428 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr3INUSE_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]=== [2021-03-25 08:09:28,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:09:28,677 INFO L82 PathProgramCache]: Analyzing trace with hash 1730551183, now seen corresponding path program 24 times [2021-03-25 08:09:28,677 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:09:28,677 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135011235] [2021-03-25 08:09:28,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:09:28,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:09:28,690 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:09:28,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:09:28,691 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:09:28,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:09:28,695 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-25 08:09:28,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 08:09:28,702 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-25 08:09:28,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 08:09:28,712 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-25 08:09:28,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 08:09:28,744 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-25 08:09:28,745 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-25 08:09:28,773 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-25 08:09:28,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-25 08:09:28,812 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-25 08:09:28,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-25 08:09:28,840 INFO L142 QuantifierPusher]: treesize reduction 63, result has 47.5 percent of original size [2021-03-25 08:09:28,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-25 08:09:28,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:09:28,874 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135011235] [2021-03-25 08:09:28,874 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:09:28,874 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 08:09:28,874 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959527915] [2021-03-25 08:09:28,874 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 08:09:28,874 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:09:28,875 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 08:09:28,875 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-03-25 08:09:28,875 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 107 [2021-03-25 08:09:28,875 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 334 places, 781 transitions, 27549 flow. Second operand has 10 states, 10 states have (on average 89.9) internal successors, (899), 10 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:09:28,875 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:09:28,875 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 107 [2021-03-25 08:09:28,876 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:09:40,545 INFO L129 PetriNetUnfolder]: 3966/28053 cut-off events. [2021-03-25 08:09:40,545 INFO L130 PetriNetUnfolder]: For 1210800/1221560 co-relation queries the response was YES. [2021-03-25 08:09:40,927 INFO L84 FinitePrefix]: Finished finitePrefix Result has 211793 conditions, 28053 events. 3966/28053 cut-off events. For 1210800/1221560 co-relation queries the response was YES. Maximal size of possible extension queue 3560. Compared 521213 event pairs, 2351 based on Foata normal form. 57/27005 useless extension candidates. Maximal degree in co-relation 211644. Up to 5075 conditions per place. [2021-03-25 08:09:41,024 INFO L132 encePairwiseOnDemand]: 98/107 looper letters, 279 selfloop transitions, 546 changer transitions 1/842 dead transitions. [2021-03-25 08:09:41,024 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 343 places, 842 transitions, 30893 flow [2021-03-25 08:09:41,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 08:09:41,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 08:09:41,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 934 transitions. [2021-03-25 08:09:41,026 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8728971962616823 [2021-03-25 08:09:41,026 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 934 transitions. [2021-03-25 08:09:41,026 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 934 transitions. [2021-03-25 08:09:41,026 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:09:41,026 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 934 transitions. [2021-03-25 08:09:41,027 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 93.4) internal successors, (934), 10 states have internal predecessors, (934), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:09:41,027 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 107.0) internal successors, (1177), 11 states have internal predecessors, (1177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:09:41,028 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 107.0) internal successors, (1177), 11 states have internal predecessors, (1177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:09:41,028 INFO L185 Difference]: Start difference. First operand has 334 places, 781 transitions, 27549 flow. Second operand 10 states and 934 transitions. [2021-03-25 08:09:41,028 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 343 places, 842 transitions, 30893 flow [2021-03-25 08:09:52,865 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 339 places, 842 transitions, 29929 flow, removed 85 selfloop flow, removed 4 redundant places. [2021-03-25 08:09:52,882 INFO L241 Difference]: Finished difference. Result has 344 places, 796 transitions, 28339 flow [2021-03-25 08:09:52,883 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=26625, PETRI_DIFFERENCE_MINUEND_PLACES=330, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=781, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=531, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=235, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=28339, PETRI_PLACES=344, PETRI_TRANSITIONS=796} [2021-03-25 08:09:52,883 INFO L343 CegarLoopForPetriNet]: 50 programPoint places, 294 predicate places. [2021-03-25 08:09:52,883 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:09:52,883 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 344 places, 796 transitions, 28339 flow [2021-03-25 08:09:52,883 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 344 places, 796 transitions, 28339 flow [2021-03-25 08:09:52,892 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 343 places, 796 transitions, 28339 flow [2021-03-25 08:09:57,469 INFO L129 PetriNetUnfolder]: 0/17516 cut-off events. [2021-03-25 08:09:57,470 INFO L130 PetriNetUnfolder]: For 623572/640288 co-relation queries the response was YES. [2021-03-25 08:09:57,470 INFO L84 FinitePrefix]: Finished finitePrefix Result has 93579 conditions, 17516 events. 0/17516 cut-off events. For 623572/640288 co-relation queries the response was YES. Maximal size of possible extension queue 2261. Compared 357980 event pairs, 0 based on Foata normal form. 298/16626 useless extension candidates. Maximal degree in co-relation 0. Up to 1871 conditions per place. [2021-03-25 08:09:57,646 INFO L142 LiptonReduction]: Number of co-enabled transitions 6150 [2021-03-25 08:09:57,735 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:09:57,735 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:09:57,735 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 4852 [2021-03-25 08:09:57,735 INFO L480 AbstractCegarLoop]: Abstraction has has 343 places, 796 transitions, 28339 flow [2021-03-25 08:09:57,735 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 89.9) internal successors, (899), 10 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:09:57,736 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:09:57,736 INFO L263 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] [2021-03-25 08:09:57,736 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-03-25 08:09:57,736 INFO L428 AbstractCegarLoop]: === Iteration 32 === [ULTIMATE.startErr3INUSE_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]=== [2021-03-25 08:09:57,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:09:57,736 INFO L82 PathProgramCache]: Analyzing trace with hash 1421970767, now seen corresponding path program 25 times [2021-03-25 08:09:57,736 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:09:57,736 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521466893] [2021-03-25 08:09:57,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:09:57,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:09:57,748 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:09:57,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:09:57,749 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:09:57,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:09:57,753 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-25 08:09:57,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 08:09:57,759 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-25 08:09:57,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 08:09:57,768 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-25 08:09:57,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 08:09:57,780 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-25 08:09:57,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-25 08:09:57,797 INFO L142 QuantifierPusher]: treesize reduction 45, result has 51.1 percent of original size [2021-03-25 08:09:57,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-25 08:09:57,819 INFO L142 QuantifierPusher]: treesize reduction 54, result has 50.5 percent of original size [2021-03-25 08:09:57,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-25 08:09:57,845 INFO L142 QuantifierPusher]: treesize reduction 63, result has 47.5 percent of original size [2021-03-25 08:09:57,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-25 08:09:57,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:09:57,872 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521466893] [2021-03-25 08:09:57,872 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:09:57,872 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 08:09:57,872 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538529418] [2021-03-25 08:09:57,873 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 08:09:57,873 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:09:57,873 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 08:09:57,873 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-03-25 08:09:57,873 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 107 [2021-03-25 08:09:57,874 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 343 places, 796 transitions, 28339 flow. Second operand has 10 states, 10 states have (on average 89.9) internal successors, (899), 10 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:09:57,874 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:09:57,874 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 107 [2021-03-25 08:09:57,874 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:10:09,818 INFO L129 PetriNetUnfolder]: 3965/26556 cut-off events. [2021-03-25 08:10:09,818 INFO L130 PetriNetUnfolder]: For 1261554/1272161 co-relation queries the response was YES. [2021-03-25 08:10:10,088 INFO L84 FinitePrefix]: Finished finitePrefix Result has 212621 conditions, 26556 events. 3965/26556 cut-off events. For 1261554/1272161 co-relation queries the response was YES. Maximal size of possible extension queue 3396. Compared 484142 event pairs, 2849 based on Foata normal form. 57/25367 useless extension candidates. Maximal degree in co-relation 212468. Up to 5075 conditions per place. [2021-03-25 08:10:10,175 INFO L132 encePairwiseOnDemand]: 98/107 looper letters, 311 selfloop transitions, 549 changer transitions 1/877 dead transitions. [2021-03-25 08:10:10,175 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 352 places, 877 transitions, 32483 flow [2021-03-25 08:10:10,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 08:10:10,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 08:10:10,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 934 transitions. [2021-03-25 08:10:10,176 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8728971962616823 [2021-03-25 08:10:10,176 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 934 transitions. [2021-03-25 08:10:10,176 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 934 transitions. [2021-03-25 08:10:10,176 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:10:10,176 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 934 transitions. [2021-03-25 08:10:10,177 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 93.4) internal successors, (934), 10 states have internal predecessors, (934), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:10:10,178 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 107.0) internal successors, (1177), 11 states have internal predecessors, (1177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:10:10,178 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 107.0) internal successors, (1177), 11 states have internal predecessors, (1177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:10:10,178 INFO L185 Difference]: Start difference. First operand has 343 places, 796 transitions, 28339 flow. Second operand 10 states and 934 transitions. [2021-03-25 08:10:10,178 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 352 places, 877 transitions, 32483 flow [2021-03-25 08:10:22,700 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 347 places, 877 transitions, 31335 flow, removed 60 selfloop flow, removed 5 redundant places. [2021-03-25 08:10:22,717 INFO L241 Difference]: Finished difference. Result has 353 places, 833 transitions, 30037 flow [2021-03-25 08:10:22,717 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=27241, PETRI_DIFFERENCE_MINUEND_PLACES=338, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=796, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=512, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=247, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=30037, PETRI_PLACES=353, PETRI_TRANSITIONS=833} [2021-03-25 08:10:22,718 INFO L343 CegarLoopForPetriNet]: 50 programPoint places, 303 predicate places. [2021-03-25 08:10:22,718 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:10:22,718 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 353 places, 833 transitions, 30037 flow [2021-03-25 08:10:22,718 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 353 places, 833 transitions, 30037 flow [2021-03-25 08:10:22,726 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 352 places, 833 transitions, 30037 flow [2021-03-25 08:10:27,433 INFO L129 PetriNetUnfolder]: 0/17518 cut-off events. [2021-03-25 08:10:27,434 INFO L130 PetriNetUnfolder]: For 644571/661222 co-relation queries the response was YES. [2021-03-25 08:10:27,434 INFO L84 FinitePrefix]: Finished finitePrefix Result has 94637 conditions, 17518 events. 0/17518 cut-off events. For 644571/661222 co-relation queries the response was YES. Maximal size of possible extension queue 2269. Compared 358009 event pairs, 0 based on Foata normal form. 261/16609 useless extension candidates. Maximal degree in co-relation 0. Up to 1872 conditions per place. [2021-03-25 08:10:27,597 INFO L142 LiptonReduction]: Number of co-enabled transitions 6494 [2021-03-25 08:10:27,685 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:10:27,685 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:10:27,685 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 4967 [2021-03-25 08:10:27,686 INFO L480 AbstractCegarLoop]: Abstraction has has 352 places, 833 transitions, 30037 flow [2021-03-25 08:10:27,686 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 89.9) internal successors, (899), 10 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:10:27,686 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:10:27,686 INFO L263 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] [2021-03-25 08:10:27,686 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-03-25 08:10:27,686 INFO L428 AbstractCegarLoop]: === Iteration 33 === [ULTIMATE.startErr3INUSE_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]=== [2021-03-25 08:10:27,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:10:27,686 INFO L82 PathProgramCache]: Analyzing trace with hash 796277687, now seen corresponding path program 26 times [2021-03-25 08:10:27,686 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:10:27,686 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125819083] [2021-03-25 08:10:27,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:10:27,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:10:27,699 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:10:27,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:10:27,699 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:10:27,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:10:27,703 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-25 08:10:27,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 08:10:27,709 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-25 08:10:27,710 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 08:10:27,719 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-25 08:10:27,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 08:10:27,732 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-25 08:10:27,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 08:10:27,749 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-25 08:10:27,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-25 08:10:27,771 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-25 08:10:27,771 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-25 08:10:27,800 INFO L142 QuantifierPusher]: treesize reduction 63, result has 47.5 percent of original size [2021-03-25 08:10:27,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-25 08:10:27,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:10:27,829 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125819083] [2021-03-25 08:10:27,829 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:10:27,829 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 08:10:27,829 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141494142] [2021-03-25 08:10:27,829 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 08:10:27,829 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:10:27,829 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 08:10:27,829 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-03-25 08:10:27,830 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 107 [2021-03-25 08:10:27,830 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 352 places, 833 transitions, 30037 flow. Second operand has 10 states, 10 states have (on average 89.9) internal successors, (899), 10 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:10:27,830 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:10:27,830 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 107 [2021-03-25 08:10:27,830 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:10:43,534 INFO L129 PetriNetUnfolder]: 3760/33349 cut-off events. [2021-03-25 08:10:43,543 INFO L130 PetriNetUnfolder]: For 1529539/1540150 co-relation queries the response was YES. [2021-03-25 08:10:44,406 INFO L84 FinitePrefix]: Finished finitePrefix Result has 255500 conditions, 33349 events. 3760/33349 cut-off events. For 1529539/1540150 co-relation queries the response was YES. Maximal size of possible extension queue 4392. Compared 653873 event pairs, 2185 based on Foata normal form. 44/31950 useless extension candidates. Maximal degree in co-relation 255342. Up to 5712 conditions per place. [2021-03-25 08:10:44,516 INFO L132 encePairwiseOnDemand]: 98/107 looper letters, 709 selfloop transitions, 534 changer transitions 1/1260 dead transitions. [2021-03-25 08:10:44,516 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 361 places, 1260 transitions, 47915 flow [2021-03-25 08:10:44,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 08:10:44,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 08:10:44,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 934 transitions. [2021-03-25 08:10:44,518 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8728971962616823 [2021-03-25 08:10:44,518 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 934 transitions. [2021-03-25 08:10:44,518 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 934 transitions. [2021-03-25 08:10:44,518 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:10:44,518 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 934 transitions. [2021-03-25 08:10:44,519 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 93.4) internal successors, (934), 10 states have internal predecessors, (934), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:10:44,519 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 107.0) internal successors, (1177), 11 states have internal predecessors, (1177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:10:44,520 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 107.0) internal successors, (1177), 11 states have internal predecessors, (1177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:10:44,520 INFO L185 Difference]: Start difference. First operand has 352 places, 833 transitions, 30037 flow. Second operand 10 states and 934 transitions. [2021-03-25 08:10:44,520 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 361 places, 1260 transitions, 47915 flow [2021-03-25 08:11:01,407 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 357 places, 1260 transitions, 46694 flow, removed 149 selfloop flow, removed 4 redundant places. [2021-03-25 08:11:01,430 INFO L241 Difference]: Finished difference. Result has 364 places, 1039 transitions, 39188 flow [2021-03-25 08:11:01,430 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=29111, PETRI_DIFFERENCE_MINUEND_PLACES=348, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=833, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=328, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=299, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=39188, PETRI_PLACES=364, PETRI_TRANSITIONS=1039} [2021-03-25 08:11:01,431 INFO L343 CegarLoopForPetriNet]: 50 programPoint places, 314 predicate places. [2021-03-25 08:11:01,431 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:11:01,431 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 364 places, 1039 transitions, 39188 flow [2021-03-25 08:11:01,431 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 364 places, 1039 transitions, 39188 flow [2021-03-25 08:11:01,442 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 363 places, 1039 transitions, 39188 flow [2021-03-25 08:11:09,126 INFO L129 PetriNetUnfolder]: 0/25085 cut-off events. [2021-03-25 08:11:09,126 INFO L130 PetriNetUnfolder]: For 961147/981240 co-relation queries the response was YES. [2021-03-25 08:11:09,126 INFO L84 FinitePrefix]: Finished finitePrefix Result has 140918 conditions, 25085 events. 0/25085 cut-off events. For 961147/981240 co-relation queries the response was YES. Maximal size of possible extension queue 3490. Compared 540415 event pairs, 0 based on Foata normal form. 300/23760 useless extension candidates. Maximal degree in co-relation 0. Up to 2656 conditions per place. [2021-03-25 08:11:09,369 INFO L142 LiptonReduction]: Number of co-enabled transitions 7036 [2021-03-25 08:11:09,504 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:11:09,504 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:11:09,504 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 8073 [2021-03-25 08:11:09,504 INFO L480 AbstractCegarLoop]: Abstraction has has 363 places, 1039 transitions, 39188 flow [2021-03-25 08:11:09,504 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 89.9) internal successors, (899), 10 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:11:09,504 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:11:09,504 INFO L263 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] [2021-03-25 08:11:09,504 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-03-25 08:11:09,504 INFO L428 AbstractCegarLoop]: === Iteration 34 === [ULTIMATE.startErr3INUSE_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]=== [2021-03-25 08:11:09,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:11:09,505 INFO L82 PathProgramCache]: Analyzing trace with hash 2033985517, now seen corresponding path program 27 times [2021-03-25 08:11:09,505 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:11:09,505 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274949506] [2021-03-25 08:11:09,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:11:09,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:11:09,521 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:11:09,521 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:11:09,521 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:11:09,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:11:09,525 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-25 08:11:09,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 08:11:09,531 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-25 08:11:09,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 08:11:09,541 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-25 08:11:09,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 08:11:09,554 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-25 08:11:09,555 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 08:11:09,571 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-25 08:11:09,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-25 08:11:09,608 INFO L142 QuantifierPusher]: treesize reduction 54, result has 50.5 percent of original size [2021-03-25 08:11:09,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-25 08:11:09,636 INFO L142 QuantifierPusher]: treesize reduction 63, result has 47.5 percent of original size [2021-03-25 08:11:09,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-25 08:11:09,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:11:09,662 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274949506] [2021-03-25 08:11:09,662 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:11:09,662 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 08:11:09,662 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968549798] [2021-03-25 08:11:09,662 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 08:11:09,662 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:11:09,662 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 08:11:09,662 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-03-25 08:11:09,663 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 107 [2021-03-25 08:11:09,663 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 363 places, 1039 transitions, 39188 flow. Second operand has 10 states, 10 states have (on average 89.9) internal successors, (899), 10 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:11:09,663 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:11:09,663 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 107 [2021-03-25 08:11:09,663 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:11:27,332 INFO L129 PetriNetUnfolder]: 3760/33861 cut-off events. [2021-03-25 08:11:27,332 INFO L130 PetriNetUnfolder]: For 1596220/1611186 co-relation queries the response was YES. [2021-03-25 08:11:27,699 INFO L84 FinitePrefix]: Finished finitePrefix Result has 260994 conditions, 33861 events. 3760/33861 cut-off events. For 1596220/1611186 co-relation queries the response was YES. Maximal size of possible extension queue 4426. Compared 667709 event pairs, 2742 based on Foata normal form. 77/32359 useless extension candidates. Maximal degree in co-relation 260830. Up to 6174 conditions per place. [2021-03-25 08:11:27,798 INFO L132 encePairwiseOnDemand]: 98/107 looper letters, 258 selfloop transitions, 816 changer transitions 2/1092 dead transitions. [2021-03-25 08:11:27,798 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 372 places, 1092 transitions, 42806 flow [2021-03-25 08:11:27,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 08:11:27,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 08:11:27,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 934 transitions. [2021-03-25 08:11:27,799 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8728971962616823 [2021-03-25 08:11:27,799 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 934 transitions. [2021-03-25 08:11:27,799 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 934 transitions. [2021-03-25 08:11:27,799 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:11:27,799 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 934 transitions. [2021-03-25 08:11:27,800 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 93.4) internal successors, (934), 10 states have internal predecessors, (934), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:11:27,801 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 107.0) internal successors, (1177), 11 states have internal predecessors, (1177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:11:27,801 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 107.0) internal successors, (1177), 11 states have internal predecessors, (1177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:11:27,801 INFO L185 Difference]: Start difference. First operand has 363 places, 1039 transitions, 39188 flow. Second operand 10 states and 934 transitions. [2021-03-25 08:11:27,801 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 372 places, 1092 transitions, 42806 flow [2021-03-25 08:11:46,392 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 369 places, 1092 transitions, 42129 flow, removed 123 selfloop flow, removed 3 redundant places. [2021-03-25 08:11:46,416 INFO L241 Difference]: Finished difference. Result has 374 places, 1051 transitions, 40926 flow [2021-03-25 08:11:46,416 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=38549, PETRI_DIFFERENCE_MINUEND_PLACES=360, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1039, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=804, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=223, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=40926, PETRI_PLACES=374, PETRI_TRANSITIONS=1051} [2021-03-25 08:11:46,416 INFO L343 CegarLoopForPetriNet]: 50 programPoint places, 324 predicate places. [2021-03-25 08:11:46,416 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:11:46,416 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 374 places, 1051 transitions, 40926 flow [2021-03-25 08:11:46,417 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 374 places, 1051 transitions, 40926 flow [2021-03-25 08:11:46,428 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 373 places, 1051 transitions, 40926 flow [2021-03-25 08:11:54,215 INFO L129 PetriNetUnfolder]: 0/25078 cut-off events. [2021-03-25 08:11:54,215 INFO L130 PetriNetUnfolder]: For 1003105/1024953 co-relation queries the response was YES. [2021-03-25 08:11:54,215 INFO L84 FinitePrefix]: Finished finitePrefix Result has 143108 conditions, 25078 events. 0/25078 cut-off events. For 1003105/1024953 co-relation queries the response was YES. Maximal size of possible extension queue 3494. Compared 540438 event pairs, 0 based on Foata normal form. 327/23804 useless extension candidates. Maximal degree in co-relation 0. Up to 2655 conditions per place. [2021-03-25 08:11:54,477 INFO L142 LiptonReduction]: Number of co-enabled transitions 7186 [2021-03-25 08:11:54,768 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:11:54,769 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:11:54,769 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 8353 [2021-03-25 08:11:54,769 INFO L480 AbstractCegarLoop]: Abstraction has has 373 places, 1051 transitions, 40926 flow [2021-03-25 08:11:54,769 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 89.9) internal successors, (899), 10 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:11:54,769 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:11:54,769 INFO L263 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] [2021-03-25 08:11:54,769 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-03-25 08:11:54,769 INFO L428 AbstractCegarLoop]: === Iteration 35 === [ULTIMATE.startErr3INUSE_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]=== [2021-03-25 08:11:54,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:11:54,770 INFO L82 PathProgramCache]: Analyzing trace with hash 2026903529, now seen corresponding path program 28 times [2021-03-25 08:11:54,770 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:11:54,770 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547693472] [2021-03-25 08:11:54,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:11:54,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:11:54,783 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:11:54,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:11:54,784 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:11:54,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:11:54,788 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-25 08:11:54,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 08:11:54,794 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-25 08:11:54,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 08:11:54,804 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-25 08:11:54,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 08:11:54,817 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-25 08:11:54,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-25 08:11:54,845 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-03-25 08:11:54,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-25 08:11:54,882 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-25 08:11:54,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-25 08:11:54,910 INFO L142 QuantifierPusher]: treesize reduction 63, result has 47.5 percent of original size [2021-03-25 08:11:54,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-25 08:11:54,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:11:54,935 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1547693472] [2021-03-25 08:11:54,935 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:11:54,935 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 08:11:54,935 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373282595] [2021-03-25 08:11:54,935 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 08:11:54,935 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:11:54,936 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 08:11:54,936 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-03-25 08:11:54,936 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 107 [2021-03-25 08:11:54,936 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 373 places, 1051 transitions, 40926 flow. Second operand has 10 states, 10 states have (on average 89.9) internal successors, (899), 10 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:11:54,937 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:11:54,937 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 107 [2021-03-25 08:11:54,937 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:12:13,464 INFO L129 PetriNetUnfolder]: 3755/33840 cut-off events. [2021-03-25 08:12:13,464 INFO L130 PetriNetUnfolder]: For 1620582/1635554 co-relation queries the response was YES. [2021-03-25 08:12:13,953 INFO L84 FinitePrefix]: Finished finitePrefix Result has 263386 conditions, 33840 events. 3755/33840 cut-off events. For 1620582/1635554 co-relation queries the response was YES. Maximal size of possible extension queue 4419. Compared 667423 event pairs, 2826 based on Foata normal form. 69/32360 useless extension candidates. Maximal degree in co-relation 263218. Up to 6174 conditions per place. [2021-03-25 08:12:14,052 INFO L132 encePairwiseOnDemand]: 98/107 looper letters, 410 selfloop transitions, 686 changer transitions 1/1113 dead transitions. [2021-03-25 08:12:14,052 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 382 places, 1113 transitions, 45051 flow [2021-03-25 08:12:14,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 08:12:14,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 08:12:14,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 934 transitions. [2021-03-25 08:12:14,053 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8728971962616823 [2021-03-25 08:12:14,053 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 934 transitions. [2021-03-25 08:12:14,053 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 934 transitions. [2021-03-25 08:12:14,053 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:12:14,053 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 934 transitions. [2021-03-25 08:12:14,054 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 93.4) internal successors, (934), 10 states have internal predecessors, (934), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:12:14,055 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 107.0) internal successors, (1177), 11 states have internal predecessors, (1177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:12:14,055 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 107.0) internal successors, (1177), 11 states have internal predecessors, (1177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:12:14,055 INFO L185 Difference]: Start difference. First operand has 373 places, 1051 transitions, 40926 flow. Second operand 10 states and 934 transitions. [2021-03-25 08:12:14,055 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 382 places, 1113 transitions, 45051 flow [2021-03-25 08:12:34,649 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 376 places, 1113 transitions, 43470 flow, removed 92 selfloop flow, removed 6 redundant places. [2021-03-25 08:12:34,673 INFO L241 Difference]: Finished difference. Result has 381 places, 1067 transitions, 41462 flow [2021-03-25 08:12:34,673 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=39422, PETRI_DIFFERENCE_MINUEND_PLACES=367, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1051, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=670, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=365, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=41462, PETRI_PLACES=381, PETRI_TRANSITIONS=1067} [2021-03-25 08:12:34,673 INFO L343 CegarLoopForPetriNet]: 50 programPoint places, 331 predicate places. [2021-03-25 08:12:34,674 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:12:34,674 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 381 places, 1067 transitions, 41462 flow [2021-03-25 08:12:34,674 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 381 places, 1067 transitions, 41462 flow [2021-03-25 08:12:34,686 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 380 places, 1067 transitions, 41462 flow [2021-03-25 08:12:42,725 INFO L129 PetriNetUnfolder]: 0/25100 cut-off events. [2021-03-25 08:12:42,725 INFO L130 PetriNetUnfolder]: For 1000758/1021530 co-relation queries the response was YES. [2021-03-25 08:12:42,725 INFO L84 FinitePrefix]: Finished finitePrefix Result has 143253 conditions, 25100 events. 0/25100 cut-off events. For 1000758/1021530 co-relation queries the response was YES. Maximal size of possible extension queue 3497. Compared 540563 event pairs, 0 based on Foata normal form. 319/23800 useless extension candidates. Maximal degree in co-relation 0. Up to 2659 conditions per place. [2021-03-25 08:12:42,969 INFO L142 LiptonReduction]: Number of co-enabled transitions 7382 [2021-03-25 08:12:43,117 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:12:43,117 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:12:43,117 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 8444 [2021-03-25 08:12:43,117 INFO L480 AbstractCegarLoop]: Abstraction has has 380 places, 1067 transitions, 41462 flow [2021-03-25 08:12:43,118 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 89.9) internal successors, (899), 10 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:12:43,118 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:12:43,118 INFO L263 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] [2021-03-25 08:12:43,118 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-03-25 08:12:43,118 INFO L428 AbstractCegarLoop]: === Iteration 36 === [ULTIMATE.startErr3INUSE_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]=== [2021-03-25 08:12:43,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:12:43,118 INFO L82 PathProgramCache]: Analyzing trace with hash 321088207, now seen corresponding path program 29 times [2021-03-25 08:12:43,118 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:12:43,118 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013321250] [2021-03-25 08:12:43,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:12:43,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:12:43,129 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:12:43,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:12:43,129 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:12:43,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:12:43,133 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-25 08:12:43,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 08:12:43,139 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-25 08:12:43,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 08:12:43,147 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-25 08:12:43,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 08:12:43,159 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-25 08:12:43,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-25 08:12:43,174 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-25 08:12:43,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-25 08:12:43,194 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-25 08:12:43,194 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-25 08:12:43,221 INFO L142 QuantifierPusher]: treesize reduction 63, result has 47.5 percent of original size [2021-03-25 08:12:43,221 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-25 08:12:43,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:12:43,245 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013321250] [2021-03-25 08:12:43,246 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:12:43,246 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 08:12:43,246 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763648879] [2021-03-25 08:12:43,246 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 08:12:43,246 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:12:43,246 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 08:12:43,246 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-03-25 08:12:43,246 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 107 [2021-03-25 08:12:43,247 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 380 places, 1067 transitions, 41462 flow. Second operand has 10 states, 10 states have (on average 89.9) internal successors, (899), 10 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:12:43,247 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:12:43,247 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 107 [2021-03-25 08:12:43,247 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:13:03,114 INFO L129 PetriNetUnfolder]: 3705/34128 cut-off events. [2021-03-25 08:13:03,114 INFO L130 PetriNetUnfolder]: For 1623367/1638339 co-relation queries the response was YES. [2021-03-25 08:13:03,576 INFO L84 FinitePrefix]: Finished finitePrefix Result has 264932 conditions, 34128 events. 3705/34128 cut-off events. For 1623367/1638339 co-relation queries the response was YES. Maximal size of possible extension queue 4469. Compared 675959 event pairs, 2678 based on Foata normal form. 69/32605 useless extension candidates. Maximal degree in co-relation 264761. Up to 6174 conditions per place. [2021-03-25 08:13:03,695 INFO L132 encePairwiseOnDemand]: 98/107 looper letters, 492 selfloop transitions, 683 changer transitions 2/1193 dead transitions. [2021-03-25 08:13:03,695 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 389 places, 1193 transitions, 48336 flow [2021-03-25 08:13:03,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 08:13:03,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 08:13:03,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 934 transitions. [2021-03-25 08:13:03,696 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8728971962616823 [2021-03-25 08:13:03,696 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 934 transitions. [2021-03-25 08:13:03,696 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 934 transitions. [2021-03-25 08:13:03,697 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:13:03,697 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 934 transitions. [2021-03-25 08:13:03,697 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 93.4) internal successors, (934), 10 states have internal predecessors, (934), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:13:03,698 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 107.0) internal successors, (1177), 11 states have internal predecessors, (1177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:13:03,698 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 107.0) internal successors, (1177), 11 states have internal predecessors, (1177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:13:03,698 INFO L185 Difference]: Start difference. First operand has 380 places, 1067 transitions, 41462 flow. Second operand 10 states and 934 transitions. [2021-03-25 08:13:03,698 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 389 places, 1193 transitions, 48336 flow [2021-03-25 08:13:23,286 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 384 places, 1193 transitions, 46914 flow, removed 70 selfloop flow, removed 5 redundant places. [2021-03-25 08:13:23,311 INFO L241 Difference]: Finished difference. Result has 389 places, 1104 transitions, 43212 flow [2021-03-25 08:13:23,312 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=40124, PETRI_DIFFERENCE_MINUEND_PLACES=375, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1067, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=646, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=384, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=43212, PETRI_PLACES=389, PETRI_TRANSITIONS=1104} [2021-03-25 08:13:23,312 INFO L343 CegarLoopForPetriNet]: 50 programPoint places, 339 predicate places. [2021-03-25 08:13:23,312 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:13:23,312 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 389 places, 1104 transitions, 43212 flow [2021-03-25 08:13:23,312 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 389 places, 1104 transitions, 43212 flow [2021-03-25 08:13:23,324 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 388 places, 1104 transitions, 43212 flow [2021-03-25 08:13:31,808 INFO L129 PetriNetUnfolder]: 0/25597 cut-off events. [2021-03-25 08:13:31,808 INFO L130 PetriNetUnfolder]: For 1057919/1082488 co-relation queries the response was YES. [2021-03-25 08:13:31,808 INFO L84 FinitePrefix]: Finished finitePrefix Result has 148076 conditions, 25597 events. 0/25597 cut-off events. For 1057919/1082488 co-relation queries the response was YES. Maximal size of possible extension queue 3587. Compared 553291 event pairs, 0 based on Foata normal form. 339/24294 useless extension candidates. Maximal degree in co-relation 0. Up to 2721 conditions per place. [2021-03-25 08:13:32,063 INFO L142 LiptonReduction]: Number of co-enabled transitions 7664 [2021-03-25 08:13:32,240 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:13:32,240 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:13:32,240 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 8928 [2021-03-25 08:13:32,240 INFO L480 AbstractCegarLoop]: Abstraction has has 388 places, 1104 transitions, 43212 flow [2021-03-25 08:13:32,241 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 89.9) internal successors, (899), 10 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:13:32,241 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:13:32,241 INFO L263 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] [2021-03-25 08:13:32,241 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-03-25 08:13:32,241 INFO L428 AbstractCegarLoop]: === Iteration 37 === [ULTIMATE.startErr3INUSE_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]=== [2021-03-25 08:13:32,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:13:32,241 INFO L82 PathProgramCache]: Analyzing trace with hash 198675545, now seen corresponding path program 30 times [2021-03-25 08:13:32,241 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:13:32,241 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777911407] [2021-03-25 08:13:32,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:13:32,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:13:32,252 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:13:32,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:13:32,253 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:13:32,253 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:13:32,256 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-25 08:13:32,256 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 08:13:32,263 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-25 08:13:32,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 08:13:32,272 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-25 08:13:32,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 08:13:32,285 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-25 08:13:32,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-25 08:13:32,316 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-25 08:13:32,316 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-25 08:13:32,338 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-25 08:13:32,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-25 08:13:32,364 INFO L142 QuantifierPusher]: treesize reduction 63, result has 47.5 percent of original size [2021-03-25 08:13:32,365 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-25 08:13:32,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:13:32,390 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777911407] [2021-03-25 08:13:32,390 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:13:32,390 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 08:13:32,390 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550971079] [2021-03-25 08:13:32,390 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 08:13:32,390 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:13:32,390 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 08:13:32,390 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-03-25 08:13:32,391 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 107 [2021-03-25 08:13:32,391 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 388 places, 1104 transitions, 43212 flow. Second operand has 10 states, 10 states have (on average 89.9) internal successors, (899), 10 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:13:32,391 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:13:32,391 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 107 [2021-03-25 08:13:32,391 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:13:52,461 INFO L129 PetriNetUnfolder]: 3685/34247 cut-off events. [2021-03-25 08:13:52,462 INFO L130 PetriNetUnfolder]: For 1649532/1664372 co-relation queries the response was YES. [2021-03-25 08:13:52,860 INFO L84 FinitePrefix]: Finished finitePrefix Result has 266860 conditions, 34247 events. 3685/34247 cut-off events. For 1649532/1664372 co-relation queries the response was YES. Maximal size of possible extension queue 4492. Compared 679147 event pairs, 2813 based on Foata normal form. 69/32744 useless extension candidates. Maximal degree in co-relation 266685. Up to 6174 conditions per place. [2021-03-25 08:13:53,044 INFO L132 encePairwiseOnDemand]: 98/107 looper letters, 456 selfloop transitions, 697 changer transitions 1/1170 dead transitions. [2021-03-25 08:13:53,044 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 397 places, 1170 transitions, 47542 flow [2021-03-25 08:13:53,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 08:13:53,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 08:13:53,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 934 transitions. [2021-03-25 08:13:53,045 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8728971962616823 [2021-03-25 08:13:53,045 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 934 transitions. [2021-03-25 08:13:53,046 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 934 transitions. [2021-03-25 08:13:53,046 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:13:53,046 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 934 transitions. [2021-03-25 08:13:53,046 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 93.4) internal successors, (934), 10 states have internal predecessors, (934), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:13:53,047 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 107.0) internal successors, (1177), 11 states have internal predecessors, (1177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:13:53,047 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 107.0) internal successors, (1177), 11 states have internal predecessors, (1177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:13:53,047 INFO L185 Difference]: Start difference. First operand has 388 places, 1104 transitions, 43212 flow. Second operand 10 states and 934 transitions. [2021-03-25 08:13:53,047 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 397 places, 1170 transitions, 47542 flow [2021-03-25 08:14:13,716 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 392 places, 1170 transitions, 46116 flow, removed 72 selfloop flow, removed 5 redundant places. [2021-03-25 08:14:13,742 INFO L241 Difference]: Finished difference. Result has 397 places, 1129 transitions, 44332 flow [2021-03-25 08:14:13,743 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=41842, PETRI_DIFFERENCE_MINUEND_PLACES=383, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=672, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=407, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=44332, PETRI_PLACES=397, PETRI_TRANSITIONS=1129} [2021-03-25 08:14:13,743 INFO L343 CegarLoopForPetriNet]: 50 programPoint places, 347 predicate places. [2021-03-25 08:14:13,743 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:14:13,743 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 397 places, 1129 transitions, 44332 flow [2021-03-25 08:14:13,743 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 397 places, 1129 transitions, 44332 flow [2021-03-25 08:14:13,755 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 396 places, 1129 transitions, 44332 flow [2021-03-25 08:14:22,126 INFO L129 PetriNetUnfolder]: 0/25765 cut-off events. [2021-03-25 08:14:22,126 INFO L130 PetriNetUnfolder]: For 1081869/1103308 co-relation queries the response was YES. [2021-03-25 08:14:22,127 INFO L84 FinitePrefix]: Finished finitePrefix Result has 150411 conditions, 25765 events. 0/25765 cut-off events. For 1081869/1103308 co-relation queries the response was YES. Maximal size of possible extension queue 3626. Compared 557655 event pairs, 0 based on Foata normal form. 317/24416 useless extension candidates. Maximal degree in co-relation 0. Up to 2741 conditions per place. [2021-03-25 08:14:22,385 INFO L142 LiptonReduction]: Number of co-enabled transitions 7832 [2021-03-25 08:14:22,548 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:14:22,548 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:14:22,548 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 8805 [2021-03-25 08:14:22,548 INFO L480 AbstractCegarLoop]: Abstraction has has 396 places, 1129 transitions, 44332 flow [2021-03-25 08:14:22,549 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 89.9) internal successors, (899), 10 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:14:22,549 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:14:22,549 INFO L263 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] [2021-03-25 08:14:22,549 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-03-25 08:14:22,549 INFO L428 AbstractCegarLoop]: === Iteration 38 === [ULTIMATE.startErr3INUSE_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]=== [2021-03-25 08:14:22,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:14:22,549 INFO L82 PathProgramCache]: Analyzing trace with hash -1102015703, now seen corresponding path program 31 times [2021-03-25 08:14:22,549 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:14:22,549 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398767113] [2021-03-25 08:14:22,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:14:22,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:14:22,558 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:14:22,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:14:22,559 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:14:22,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:14:22,562 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:14:22,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:14:22,569 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-25 08:14:22,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 08:14:22,578 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-25 08:14:22,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 08:14:22,591 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-25 08:14:22,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 08:14:22,608 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-25 08:14:22,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-25 08:14:22,630 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-25 08:14:22,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-25 08:14:22,656 INFO L142 QuantifierPusher]: treesize reduction 63, result has 47.5 percent of original size [2021-03-25 08:14:22,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-25 08:14:22,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:14:22,681 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398767113] [2021-03-25 08:14:22,681 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:14:22,681 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 08:14:22,682 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536305334] [2021-03-25 08:14:22,682 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 08:14:22,682 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:14:22,682 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 08:14:22,682 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-03-25 08:14:22,682 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 107 [2021-03-25 08:14:22,683 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 396 places, 1129 transitions, 44332 flow. Second operand has 10 states, 10 states have (on average 89.9) internal successors, (899), 10 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:14:22,683 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:14:22,683 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 107 [2021-03-25 08:14:22,683 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:14:45,505 INFO L129 PetriNetUnfolder]: 4141/39390 cut-off events. [2021-03-25 08:14:45,506 INFO L130 PetriNetUnfolder]: For 1978921/1993761 co-relation queries the response was YES. [2021-03-25 08:14:46,191 INFO L84 FinitePrefix]: Finished finitePrefix Result has 314448 conditions, 39390 events. 4141/39390 cut-off events. For 1978921/1993761 co-relation queries the response was YES. Maximal size of possible extension queue 5212. Compared 793996 event pairs, 1512 based on Foata normal form. 1/37924 useless extension candidates. Maximal degree in co-relation 314269. Up to 11044 conditions per place. [2021-03-25 08:14:46,310 INFO L132 encePairwiseOnDemand]: 98/107 looper letters, 1402 selfloop transitions, 553 changer transitions 7/1978 dead transitions. [2021-03-25 08:14:46,310 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 405 places, 1978 transitions, 81363 flow [2021-03-25 08:14:46,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 08:14:46,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 08:14:46,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 934 transitions. [2021-03-25 08:14:46,312 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8728971962616823 [2021-03-25 08:14:46,312 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 934 transitions. [2021-03-25 08:14:46,312 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 934 transitions. [2021-03-25 08:14:46,312 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:14:46,312 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 934 transitions. [2021-03-25 08:14:46,312 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 93.4) internal successors, (934), 10 states have internal predecessors, (934), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:14:46,313 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 107.0) internal successors, (1177), 11 states have internal predecessors, (1177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:14:46,313 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 107.0) internal successors, (1177), 11 states have internal predecessors, (1177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:14:46,313 INFO L185 Difference]: Start difference. First operand has 396 places, 1129 transitions, 44332 flow. Second operand 10 states and 934 transitions. [2021-03-25 08:14:46,313 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 405 places, 1978 transitions, 81363 flow [2021-03-25 08:15:15,624 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 401 places, 1978 transitions, 79608 flow, removed 38 selfloop flow, removed 4 redundant places. [2021-03-25 08:15:15,663 INFO L241 Difference]: Finished difference. Result has 409 places, 1481 transitions, 60396 flow [2021-03-25 08:15:15,663 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=43345, PETRI_DIFFERENCE_MINUEND_PLACES=392, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1129, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=201, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=576, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=60396, PETRI_PLACES=409, PETRI_TRANSITIONS=1481} [2021-03-25 08:15:15,664 INFO L343 CegarLoopForPetriNet]: 50 programPoint places, 359 predicate places. [2021-03-25 08:15:15,664 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:15:15,664 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 409 places, 1481 transitions, 60396 flow [2021-03-25 08:15:15,664 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 409 places, 1481 transitions, 60396 flow [2021-03-25 08:15:15,681 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 408 places, 1481 transitions, 60396 flow [2021-03-25 08:15:27,274 INFO L129 PetriNetUnfolder]: 0/30714 cut-off events. [2021-03-25 08:15:27,274 INFO L130 PetriNetUnfolder]: For 1324602/1342494 co-relation queries the response was YES. [2021-03-25 08:15:27,274 INFO L84 FinitePrefix]: Finished finitePrefix Result has 182760 conditions, 30714 events. 0/30714 cut-off events. For 1324602/1342494 co-relation queries the response was YES. Maximal size of possible extension queue 4332. Compared 679935 event pairs, 0 based on Foata normal form. 380/29253 useless extension candidates. Maximal degree in co-relation 0. Up to 3253 conditions per place. [2021-03-25 08:15:27,610 INFO L142 LiptonReduction]: Number of co-enabled transitions 8994 [2021-03-25 08:15:28,046 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:15:28,046 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:15:28,046 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 12382 [2021-03-25 08:15:28,047 INFO L480 AbstractCegarLoop]: Abstraction has has 408 places, 1481 transitions, 60396 flow [2021-03-25 08:15:28,047 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 89.9) internal successors, (899), 10 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:15:28,047 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:15:28,047 INFO L263 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] [2021-03-25 08:15:28,047 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-03-25 08:15:28,047 INFO L428 AbstractCegarLoop]: === Iteration 39 === [ULTIMATE.startErr3INUSE_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]=== [2021-03-25 08:15:28,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:15:28,047 INFO L82 PathProgramCache]: Analyzing trace with hash 289903549, now seen corresponding path program 32 times [2021-03-25 08:15:28,047 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:15:28,047 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107054715] [2021-03-25 08:15:28,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:15:28,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:15:28,064 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:15:28,064 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:15:28,065 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:15:28,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:15:28,068 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-25 08:15:28,069 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 08:15:28,075 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-25 08:15:28,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 08:15:28,085 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-25 08:15:28,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-25 08:15:28,098 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-25 08:15:28,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-25 08:15:28,117 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-25 08:15:28,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-25 08:15:28,138 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-25 08:15:28,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-25 08:15:28,167 INFO L142 QuantifierPusher]: treesize reduction 63, result has 47.5 percent of original size [2021-03-25 08:15:28,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-25 08:15:28,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:15:28,195 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107054715] [2021-03-25 08:15:28,195 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:15:28,195 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 08:15:28,195 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801599292] [2021-03-25 08:15:28,195 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 08:15:28,195 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:15:28,195 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 08:15:28,195 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-03-25 08:15:28,196 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 107 [2021-03-25 08:15:28,196 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 408 places, 1481 transitions, 60396 flow. Second operand has 10 states, 10 states have (on average 89.9) internal successors, (899), 10 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:15:28,196 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:15:28,196 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 107 [2021-03-25 08:15:28,196 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:15:57,218 INFO L129 PetriNetUnfolder]: 4139/40272 cut-off events. [2021-03-25 08:15:57,218 INFO L130 PetriNetUnfolder]: For 2063373/2083300 co-relation queries the response was YES. [2021-03-25 08:15:57,814 INFO L84 FinitePrefix]: Finished finitePrefix Result has 319928 conditions, 40272 events. 4139/40272 cut-off events. For 2063373/2083300 co-relation queries the response was YES. Maximal size of possible extension queue 5282. Compared 818521 event pairs, 3244 based on Foata normal form. 77/38544 useless extension candidates. Maximal degree in co-relation 319742. Up to 7347 conditions per place. [2021-03-25 08:15:57,930 INFO L132 encePairwiseOnDemand]: 98/107 looper letters, 336 selfloop transitions, 1174 changer transitions 1/1527 dead transitions. [2021-03-25 08:15:57,930 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 417 places, 1527 transitions, 64733 flow [2021-03-25 08:15:57,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 08:15:57,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 08:15:57,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 934 transitions. [2021-03-25 08:15:57,932 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8728971962616823 [2021-03-25 08:15:57,932 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 934 transitions. [2021-03-25 08:15:57,932 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 934 transitions. [2021-03-25 08:15:57,932 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:15:57,932 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 934 transitions. [2021-03-25 08:15:57,932 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 93.4) internal successors, (934), 10 states have internal predecessors, (934), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:15:57,933 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 107.0) internal successors, (1177), 11 states have internal predecessors, (1177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:15:57,933 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 107.0) internal successors, (1177), 11 states have internal predecessors, (1177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:15:57,933 INFO L185 Difference]: Start difference. First operand has 408 places, 1481 transitions, 60396 flow. Second operand 10 states and 934 transitions. [2021-03-25 08:15:57,933 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 417 places, 1527 transitions, 64733 flow [2021-03-25 08:16:28,466 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 415 places, 1527 transitions, 63838 flow, removed 430 selfloop flow, removed 2 redundant places. [2021-03-25 08:16:28,503 INFO L241 Difference]: Finished difference. Result has 419 places, 1494 transitions, 62405 flow [2021-03-25 08:16:28,504 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=59558, PETRI_DIFFERENCE_MINUEND_PLACES=406, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1481, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1161, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=307, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=62405, PETRI_PLACES=419, PETRI_TRANSITIONS=1494} [2021-03-25 08:16:28,504 INFO L343 CegarLoopForPetriNet]: 50 programPoint places, 369 predicate places. [2021-03-25 08:16:28,504 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:16:28,504 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 419 places, 1494 transitions, 62405 flow [2021-03-25 08:16:28,505 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 419 places, 1494 transitions, 62405 flow [2021-03-25 08:16:28,523 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 418 places, 1494 transitions, 62405 flow [2021-03-25 08:16:40,154 INFO L129 PetriNetUnfolder]: 0/30721 cut-off events. [2021-03-25 08:16:40,154 INFO L130 PetriNetUnfolder]: For 1363794/1381568 co-relation queries the response was YES. [2021-03-25 08:16:40,154 INFO L84 FinitePrefix]: Finished finitePrefix Result has 184894 conditions, 30721 events. 0/30721 cut-off events. For 1363794/1381568 co-relation queries the response was YES. Maximal size of possible extension queue 4330. Compared 679657 event pairs, 0 based on Foata normal form. 414/29305 useless extension candidates. Maximal degree in co-relation 0. Up to 3254 conditions per place. [2021-03-25 08:16:40,482 INFO L142 LiptonReduction]: Number of co-enabled transitions 9166 [2021-03-25 08:16:40,817 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:16:40,817 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:16:40,817 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 12313 [2021-03-25 08:16:40,818 INFO L480 AbstractCegarLoop]: Abstraction has has 418 places, 1494 transitions, 62405 flow [2021-03-25 08:16:40,818 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 89.9) internal successors, (899), 10 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:16:40,818 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:16:40,818 INFO L263 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] [2021-03-25 08:16:40,818 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-03-25 08:16:40,818 INFO L428 AbstractCegarLoop]: === Iteration 40 === [ULTIMATE.startErr3INUSE_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]=== [2021-03-25 08:16:40,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:16:40,818 INFO L82 PathProgramCache]: Analyzing trace with hash -1230854821, now seen corresponding path program 33 times [2021-03-25 08:16:40,818 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:16:40,818 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075984963] [2021-03-25 08:16:40,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:16:40,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:16:40,839 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:16:40,839 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:16:40,839 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:16:40,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:16:40,843 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-25 08:16:40,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-25 08:16:40,849 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-03-25 08:16:40,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-25 08:16:40,858 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-25 08:16:40,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 08:16:40,871 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-03-25 08:16:40,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-25 08:16:40,899 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-03-25 08:16:40,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-25 08:16:40,937 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-25 08:16:40,937 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-25 08:16:40,964 INFO L142 QuantifierPusher]: treesize reduction 63, result has 47.5 percent of original size [2021-03-25 08:16:40,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-25 08:16:40,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:16:40,989 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2075984963] [2021-03-25 08:16:40,989 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:16:40,989 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 08:16:40,989 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041587099] [2021-03-25 08:16:40,990 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 08:16:40,990 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:16:40,990 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 08:16:40,990 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-03-25 08:16:40,990 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 107 [2021-03-25 08:16:40,991 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 418 places, 1494 transitions, 62405 flow. Second operand has 10 states, 10 states have (on average 89.9) internal successors, (899), 10 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:16:40,991 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:16:40,991 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 107 [2021-03-25 08:16:40,991 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-25 08:17:10,996 INFO L129 PetriNetUnfolder]: 4139/40252 cut-off events. [2021-03-25 08:17:10,996 INFO L130 PetriNetUnfolder]: For 2066052/2083115 co-relation queries the response was YES. [2021-03-25 08:17:11,654 INFO L84 FinitePrefix]: Finished finitePrefix Result has 322235 conditions, 40252 events. 4139/40252 cut-off events. For 2066052/2083115 co-relation queries the response was YES. Maximal size of possible extension queue 5273. Compared 818230 event pairs, 3370 based on Foata normal form. 69/38468 useless extension candidates. Maximal degree in co-relation 322046. Up to 7347 conditions per place. [2021-03-25 08:17:11,771 INFO L132 encePairwiseOnDemand]: 98/107 looper letters, 528 selfloop transitions, 1006 changer transitions 1/1551 dead transitions. [2021-03-25 08:17:11,771 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 427 places, 1551 transitions, 67491 flow [2021-03-25 08:17:11,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 08:17:11,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-25 08:17:11,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 934 transitions. [2021-03-25 08:17:11,772 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8728971962616823 [2021-03-25 08:17:11,772 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 934 transitions. [2021-03-25 08:17:11,772 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 934 transitions. [2021-03-25 08:17:11,772 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-25 08:17:11,772 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 934 transitions. [2021-03-25 08:17:11,773 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 93.4) internal successors, (934), 10 states have internal predecessors, (934), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:17:11,774 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 107.0) internal successors, (1177), 11 states have internal predecessors, (1177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:17:11,774 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 107.0) internal successors, (1177), 11 states have internal predecessors, (1177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:17:11,774 INFO L185 Difference]: Start difference. First operand has 418 places, 1494 transitions, 62405 flow. Second operand 10 states and 934 transitions. [2021-03-25 08:17:11,774 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 427 places, 1551 transitions, 67491 flow [2021-03-25 08:17:42,335 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 421 places, 1551 transitions, 65082 flow, removed 31 selfloop flow, removed 6 redundant places. [2021-03-25 08:17:42,370 INFO L241 Difference]: Finished difference. Result has 425 places, 1501 transitions, 62407 flow [2021-03-25 08:17:42,370 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=60062, PETRI_DIFFERENCE_MINUEND_PLACES=412, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1494, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=999, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=488, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=62407, PETRI_PLACES=425, PETRI_TRANSITIONS=1501} [2021-03-25 08:17:42,371 INFO L343 CegarLoopForPetriNet]: 50 programPoint places, 375 predicate places. [2021-03-25 08:17:42,371 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 08:17:42,371 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 425 places, 1501 transitions, 62407 flow [2021-03-25 08:17:42,371 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 425 places, 1501 transitions, 62407 flow [2021-03-25 08:17:42,388 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 424 places, 1501 transitions, 62407 flow [2021-03-25 08:17:54,401 INFO L129 PetriNetUnfolder]: 0/30714 cut-off events. [2021-03-25 08:17:54,401 INFO L130 PetriNetUnfolder]: For 1365488/1383253 co-relation queries the response was YES. [2021-03-25 08:17:54,401 INFO L84 FinitePrefix]: Finished finitePrefix Result has 185493 conditions, 30714 events. 0/30714 cut-off events. For 1365488/1383253 co-relation queries the response was YES. Maximal size of possible extension queue 4329. Compared 679309 event pairs, 0 based on Foata normal form. 391/29263 useless extension candidates. Maximal degree in co-relation 0. Up to 3253 conditions per place. [2021-03-25 08:17:54,739 INFO L142 LiptonReduction]: Number of co-enabled transitions 9262 [2021-03-25 08:17:55,044 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 08:17:55,044 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 08:17:55,044 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 12673 [2021-03-25 08:17:55,044 INFO L480 AbstractCegarLoop]: Abstraction has has 424 places, 1501 transitions, 62407 flow [2021-03-25 08:17:55,044 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 89.9) internal successors, (899), 10 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:17:55,044 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 08:17:55,044 INFO L263 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] [2021-03-25 08:17:55,044 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2021-03-25 08:17:55,045 INFO L428 AbstractCegarLoop]: === Iteration 41 === [ULTIMATE.startErr3INUSE_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]=== [2021-03-25 08:17:55,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 08:17:55,045 INFO L82 PathProgramCache]: Analyzing trace with hash -307059901, now seen corresponding path program 34 times [2021-03-25 08:17:55,045 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 08:17:55,045 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889857521] [2021-03-25 08:17:55,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 08:17:55,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-25 08:17:55,059 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:17:55,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-25 08:17:55,059 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:17:55,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-25 08:17:55,063 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-25 08:17:55,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-25 08:17:55,069 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-03-25 08:17:55,069 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-03-25 08:17:55,078 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-03-25 08:17:55,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-25 08:17:55,091 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-03-25 08:17:55,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-25 08:17:55,109 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-03-25 08:17:55,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-25 08:17:55,132 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-03-25 08:17:55,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-25 08:17:55,159 INFO L142 QuantifierPusher]: treesize reduction 63, result has 47.5 percent of original size [2021-03-25 08:17:55,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-25 08:17:55,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-25 08:17:55,184 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889857521] [2021-03-25 08:17:55,184 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-25 08:17:55,184 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-03-25 08:17:55,184 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263269992] [2021-03-25 08:17:55,184 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-25 08:17:55,184 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-25 08:17:55,185 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-25 08:17:55,185 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-03-25 08:17:55,185 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 107 [2021-03-25 08:17:55,185 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 424 places, 1501 transitions, 62407 flow. Second operand has 10 states, 10 states have (on average 89.9) internal successors, (899), 10 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-25 08:17:55,185 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-25 08:17:55,186 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 107 [2021-03-25 08:17:55,186 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand Received shutdown request... [2021-03-25 08:18:20,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-25 08:18:20,556 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2021-03-25 08:18:20,556 WARN L545 AbstractCegarLoop]: Verification canceled [2021-03-25 08:18:20,559 WARN L224 ceAbstractionStarter]: Timeout [2021-03-25 08:18:20,559 INFO L202 PluginConnector]: Adding new model example_8.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.03 08:18:20 BasicIcfg [2021-03-25 08:18:20,559 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-25 08:18:20,559 INFO L168 Benchmark]: Toolchain (without parser) took 808181.33 ms. Allocated memory was 348.1 MB in the beginning and 13.8 GB in the end (delta: 13.5 GB). Free memory was 328.7 MB in the beginning and 7.0 GB in the end (delta: -6.7 GB). Peak memory consumption was 6.8 GB. Max. memory is 16.0 GB. [2021-03-25 08:18:20,560 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.35 ms. Allocated memory is still 348.1 MB. Free memory was 329.7 MB in the beginning and 329.6 MB in the end (delta: 84.3 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-25 08:18:20,560 INFO L168 Benchmark]: Boogie Procedure Inliner took 16.89 ms. Allocated memory is still 348.1 MB. Free memory was 328.6 MB in the beginning and 327.1 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-25 08:18:20,560 INFO L168 Benchmark]: Boogie Preprocessor took 9.39 ms. Allocated memory is still 348.1 MB. Free memory was 327.1 MB in the beginning and 326.2 MB in the end (delta: 931.3 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-25 08:18:20,560 INFO L168 Benchmark]: RCFGBuilder took 183.52 ms. Allocated memory is still 348.1 MB. Free memory was 326.1 MB in the beginning and 314.6 MB in the end (delta: 11.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.0 GB. [2021-03-25 08:18:20,560 INFO L168 Benchmark]: TraceAbstraction took 807967.94 ms. Allocated memory was 348.1 MB in the beginning and 13.8 GB in the end (delta: 13.5 GB). Free memory was 314.1 MB in the beginning and 7.0 GB in the end (delta: -6.7 GB). Peak memory consumption was 6.8 GB. Max. memory is 16.0 GB. [2021-03-25 08:18:20,560 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.35 ms. Allocated memory is still 348.1 MB. Free memory was 329.7 MB in the beginning and 329.6 MB in the end (delta: 84.3 kB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 16.89 ms. Allocated memory is still 348.1 MB. Free memory was 328.6 MB in the beginning and 327.1 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 9.39 ms. Allocated memory is still 348.1 MB. Free memory was 327.1 MB in the beginning and 326.2 MB in the end (delta: 931.3 kB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 183.52 ms. Allocated memory is still 348.1 MB. Free memory was 326.1 MB in the beginning and 314.6 MB in the end (delta: 11.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.0 GB. * TraceAbstraction took 807967.94 ms. Allocated memory was 348.1 MB in the beginning and 13.8 GB in the end (delta: 13.5 GB). Free memory was 314.1 MB in the beginning and 7.0 GB in the end (delta: -6.7 GB). Peak memory consumption was 6.8 GB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 162.7ms, 58 PlacesBefore, 50 PlacesAfterwards, 89 TransitionsBefore, 81 TransitionsAfterwards, 1904 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 8 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 8 TotalNumberOfCompositions, 532 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 532, positive: 532, positive conditional: 0, positive unconditional: 532, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 504, positive: 504, positive conditional: 0, positive unconditional: 504, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 504, positive: 504, positive conditional: 0, positive unconditional: 504, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 532, positive: 28, positive conditional: 0, positive unconditional: 28, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 504, unknown conditional: 0, unknown unconditional: 504] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 36.2ms, 36 PlacesBefore, 36 PlacesAfterwards, 77 TransitionsBefore, 77 TransitionsAfterwards, 840 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 23.8ms, 37 PlacesBefore, 37 PlacesAfterwards, 72 TransitionsBefore, 72 TransitionsAfterwards, 770 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 25.4ms, 38 PlacesBefore, 38 PlacesAfterwards, 71 TransitionsBefore, 71 TransitionsAfterwards, 756 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 19.8ms, 39 PlacesBefore, 39 PlacesAfterwards, 69 TransitionsBefore, 69 TransitionsAfterwards, 728 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 9.7ms, 40 PlacesBefore, 40 PlacesAfterwards, 63 TransitionsBefore, 63 TransitionsAfterwards, 460 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.7ms, 41 PlacesBefore, 41 PlacesAfterwards, 34 TransitionsBefore, 34 TransitionsAfterwards, 266 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 9.4ms, 57 PlacesBefore, 57 PlacesAfterwards, 41 TransitionsBefore, 41 TransitionsAfterwards, 416 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 29.2ms, 73 PlacesBefore, 73 PlacesAfterwards, 52 TransitionsBefore, 52 TransitionsAfterwards, 638 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 93.5ms, 89 PlacesBefore, 89 PlacesAfterwards, 72 TransitionsBefore, 72 TransitionsAfterwards, 1016 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 158.8ms, 105 PlacesBefore, 105 PlacesAfterwards, 91 TransitionsBefore, 91 TransitionsAfterwards, 1324 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 289.9ms, 121 PlacesBefore, 121 PlacesAfterwards, 124 TransitionsBefore, 124 TransitionsAfterwards, 1890 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 111.1ms, 122 PlacesBefore, 117 PlacesAfterwards, 110 TransitionsBefore, 110 TransitionsAfterwards, 910 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 304.3ms, 128 PlacesBefore, 127 PlacesAfterwards, 125 TransitionsBefore, 125 TransitionsAfterwards, 1044 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 533.8ms, 142 PlacesBefore, 141 PlacesAfterwards, 169 TransitionsBefore, 169 TransitionsAfterwards, 1274 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 963.6ms, 156 PlacesBefore, 155 PlacesAfterwards, 211 TransitionsBefore, 211 TransitionsAfterwards, 1476 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 865.8ms, 169 PlacesBefore, 168 PlacesAfterwards, 252 TransitionsBefore, 252 TransitionsAfterwards, 1650 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1421.9ms, 183 PlacesBefore, 182 PlacesAfterwards, 286 TransitionsBefore, 286 TransitionsAfterwards, 1940 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1836.0ms, 196 PlacesBefore, 195 PlacesAfterwards, 339 TransitionsBefore, 339 TransitionsAfterwards, 2272 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3132.6ms, 210 PlacesBefore, 209 PlacesAfterwards, 375 TransitionsBefore, 375 TransitionsAfterwards, 2634 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3479.8ms, 223 PlacesBefore, 222 PlacesAfterwards, 436 TransitionsBefore, 436 TransitionsAfterwards, 3078 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3959.6ms, 237 PlacesBefore, 236 PlacesAfterwards, 469 TransitionsBefore, 469 TransitionsAfterwards, 3334 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4200.6ms, 250 PlacesBefore, 249 PlacesAfterwards, 508 TransitionsBefore, 508 TransitionsAfterwards, 3718 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4555.1ms, 263 PlacesBefore, 262 PlacesAfterwards, 556 TransitionsBefore, 556 TransitionsAfterwards, 4060 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4328.2ms, 274 PlacesBefore, 273 PlacesAfterwards, 583 TransitionsBefore, 583 TransitionsAfterwards, 4360 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4768.4ms, 286 PlacesBefore, 285 PlacesAfterwards, 636 TransitionsBefore, 636 TransitionsAfterwards, 4742 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4216.9ms, 296 PlacesBefore, 295 PlacesAfterwards, 672 TransitionsBefore, 672 TransitionsAfterwards, 5040 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4606.3ms, 306 PlacesBefore, 305 PlacesAfterwards, 692 TransitionsBefore, 692 TransitionsAfterwards, 5260 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4573.0ms, 316 PlacesBefore, 315 PlacesAfterwards, 734 TransitionsBefore, 734 TransitionsAfterwards, 5542 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4482.3ms, 326 PlacesBefore, 325 PlacesAfterwards, 756 TransitionsBefore, 756 TransitionsAfterwards, 5752 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4673.9ms, 335 PlacesBefore, 334 PlacesAfterwards, 781 TransitionsBefore, 781 TransitionsAfterwards, 6006 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4851.8ms, 344 PlacesBefore, 343 PlacesAfterwards, 796 TransitionsBefore, 796 TransitionsAfterwards, 6150 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4967.5ms, 353 PlacesBefore, 352 PlacesAfterwards, 833 TransitionsBefore, 833 TransitionsAfterwards, 6494 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 8073.0ms, 364 PlacesBefore, 363 PlacesAfterwards, 1039 TransitionsBefore, 1039 TransitionsAfterwards, 7036 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 8352.0ms, 374 PlacesBefore, 373 PlacesAfterwards, 1051 TransitionsBefore, 1051 TransitionsAfterwards, 7186 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 8443.4ms, 381 PlacesBefore, 380 PlacesAfterwards, 1067 TransitionsBefore, 1067 TransitionsAfterwards, 7382 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 8927.8ms, 389 PlacesBefore, 388 PlacesAfterwards, 1104 TransitionsBefore, 1104 TransitionsAfterwards, 7664 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 8804.9ms, 397 PlacesBefore, 396 PlacesAfterwards, 1129 TransitionsBefore, 1129 TransitionsAfterwards, 7832 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 12382.3ms, 409 PlacesBefore, 408 PlacesAfterwards, 1481 TransitionsBefore, 1481 TransitionsAfterwards, 8994 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 12312.7ms, 419 PlacesBefore, 418 PlacesAfterwards, 1494 TransitionsBefore, 1494 TransitionsAfterwards, 9166 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 12673.0ms, 425 PlacesBefore, 424 PlacesAfterwards, 1501 TransitionsBefore, 1501 TransitionsAfterwards, 9262 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - TimeoutResultAtElement [Line: 29]: Timeout (TraceAbstraction) Unable to prove that assertion always holds (line 29). Cancelled while CegarLoopForPetriNetWithRepeatedLiptonReduction was enhancing Floyd-Hoare automaton (10states, 89/107 universal loopers) in iteration 41,while PetriNetUnfolder was constructing finite prefix that currently has 313609 conditions, 36616 events (4127/36615 cut-off events. For 2087267/2104542 co-relation queries the response was YES. Maximal size of possible extension queue 5207. Compared 745465 event pairs, 2021 based on Foata normal form. 28/37915 useless extension candidates. Maximal degree in co-relation 313417. Up to 6983 conditions per place.). - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 44 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 42.2ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: TIMEOUT, OverallTime: 807805.8ms, OverallIterations: 41, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 653674.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 317.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 1131 SDtfs, 1319 SDslu, 1049 SDs, 0 SdLazy, 2000 SolverSat, 21 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1367.7ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 361 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 313 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 204 ImplicationChecksByTransitivity, 5937.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=62407occurred in iteration=40, InterpolantAutomatonStates: 351, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 29.9ms SsaConstructionTime, 93.5ms SatisfiabilityAnalysisTime, 5911.7ms InterpolantComputationTime, 1025 NumberOfCodeBlocks, 1025 NumberOfCodeBlocksAsserted, 41 NumberOfCheckSat, 984 ConstructedInterpolants, 0 QuantifiedInterpolants, 27499 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 41 InterpolantComputations, 41 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown