/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-RepeatedSemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/mcr/example_10.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-0e22065b97d0a1f8b3904e080cebe0f05e88d2b7-0e22065 [2021-06-11 09:27:39,100 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-11 09:27:39,102 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-11 09:27:39,128 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-11 09:27:39,128 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-11 09:27:39,129 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-11 09:27:39,130 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-11 09:27:39,131 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-11 09:27:39,133 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-11 09:27:39,133 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-11 09:27:39,134 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-11 09:27:39,135 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-11 09:27:39,135 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-11 09:27:39,136 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-11 09:27:39,137 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-11 09:27:39,138 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-11 09:27:39,139 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-11 09:27:39,139 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-11 09:27:39,141 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-11 09:27:39,142 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-11 09:27:39,144 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-11 09:27:39,145 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-11 09:27:39,146 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-11 09:27:39,146 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-11 09:27:39,149 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-06-11 09:27:39,149 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-06-11 09:27:39,149 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-06-11 09:27:39,150 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-06-11 09:27:39,150 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-06-11 09:27:39,151 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-06-11 09:27:39,151 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-06-11 09:27:39,152 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-06-11 09:27:39,152 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-06-11 09:27:39,153 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-06-11 09:27:39,154 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-06-11 09:27:39,154 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-06-11 09:27:39,154 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-06-11 09:27:39,155 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-06-11 09:27:39,155 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-11 09:27:39,156 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-11 09:27:39,156 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-11 09:27:39,162 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-RepeatedSemanticLbe.epf [2021-06-11 09:27:39,194 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-11 09:27:39,195 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-11 09:27:39,195 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-11 09:27:39,196 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-11 09:27:39,196 INFO L138 SettingsManager]: * Use SBE=true [2021-06-11 09:27:39,196 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-11 09:27:39,196 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-11 09:27:39,196 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-11 09:27:39,196 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-11 09:27:39,196 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-11 09:27:39,196 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-11 09:27:39,196 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-11 09:27:39,196 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-11 09:27:39,197 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-11 09:27:39,197 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-11 09:27:39,197 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-11 09:27:39,197 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-11 09:27:39,197 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-11 09:27:39,197 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-11 09:27:39,197 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-11 09:27:39,197 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-11 09:27:39,198 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-11 09:27:39,198 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-11 09:27:39,198 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-11 09:27:39,198 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-11 09:27:39,198 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-11 09:27:39,198 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-11 09:27:39,198 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-06-11 09:27:39,199 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-06-11 09:27:39,199 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-11 09:27:39,480 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-11 09:27:39,500 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-11 09:27:39,502 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-11 09:27:39,503 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-11 09:27:39,504 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-11 09:27:39,505 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/mcr/example_10.bpl [2021-06-11 09:27:39,514 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/mcr/example_10.bpl' [2021-06-11 09:27:39,549 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-11 09:27:39,551 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-11 09:27:39,551 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-11 09:27:39,552 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-11 09:27:39,552 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-11 09:27:39,561 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "example_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.06 09:27:39" (1/1) ... [2021-06-11 09:27:39,568 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "example_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.06 09:27:39" (1/1) ... [2021-06-11 09:27:39,574 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-11 09:27:39,576 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-11 09:27:39,576 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-11 09:27:39,576 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-11 09:27:39,581 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "example_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.06 09:27:39" (1/1) ... [2021-06-11 09:27:39,581 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "example_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.06 09:27:39" (1/1) ... [2021-06-11 09:27:39,582 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "example_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.06 09:27:39" (1/1) ... [2021-06-11 09:27:39,582 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "example_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.06 09:27:39" (1/1) ... [2021-06-11 09:27:39,584 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "example_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.06 09:27:39" (1/1) ... [2021-06-11 09:27:39,585 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "example_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.06 09:27:39" (1/1) ... [2021-06-11 09:27:39,586 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "example_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.06 09:27:39" (1/1) ... [2021-06-11 09:27:39,587 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-11 09:27:39,587 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-11 09:27:39,588 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-11 09:27:39,588 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-11 09:27:39,589 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "example_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.06 09:27:39" (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 [2021-06-11 09:27:39,662 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_1 given in one single declaration [2021-06-11 09:27:39,662 INFO L130 BoogieDeclarations]: Found specification of procedure set_1 [2021-06-11 09:27:39,664 INFO L138 BoogieDeclarations]: Found implementation of procedure set_1 [2021-06-11 09:27:39,664 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_2 given in one single declaration [2021-06-11 09:27:39,664 INFO L130 BoogieDeclarations]: Found specification of procedure set_2 [2021-06-11 09:27:39,664 INFO L138 BoogieDeclarations]: Found implementation of procedure set_2 [2021-06-11 09:27:39,665 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_3 given in one single declaration [2021-06-11 09:27:39,665 INFO L130 BoogieDeclarations]: Found specification of procedure set_3 [2021-06-11 09:27:39,665 INFO L138 BoogieDeclarations]: Found implementation of procedure set_3 [2021-06-11 09:27:39,665 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_4 given in one single declaration [2021-06-11 09:27:39,666 INFO L130 BoogieDeclarations]: Found specification of procedure set_4 [2021-06-11 09:27:39,666 INFO L138 BoogieDeclarations]: Found implementation of procedure set_4 [2021-06-11 09:27:39,667 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_0 given in one single declaration [2021-06-11 09:27:39,667 INFO L130 BoogieDeclarations]: Found specification of procedure set_0 [2021-06-11 09:27:39,667 INFO L138 BoogieDeclarations]: Found implementation of procedure set_0 [2021-06-11 09:27:39,667 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_9 given in one single declaration [2021-06-11 09:27:39,667 INFO L130 BoogieDeclarations]: Found specification of procedure set_9 [2021-06-11 09:27:39,667 INFO L138 BoogieDeclarations]: Found implementation of procedure set_9 [2021-06-11 09:27:39,667 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-11 09:27:39,669 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-11 09:27:39,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-11 09:27:39,669 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_5 given in one single declaration [2021-06-11 09:27:39,669 INFO L130 BoogieDeclarations]: Found specification of procedure set_5 [2021-06-11 09:27:39,670 INFO L138 BoogieDeclarations]: Found implementation of procedure set_5 [2021-06-11 09:27:39,670 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_6 given in one single declaration [2021-06-11 09:27:39,671 INFO L130 BoogieDeclarations]: Found specification of procedure set_6 [2021-06-11 09:27:39,671 INFO L138 BoogieDeclarations]: Found implementation of procedure set_6 [2021-06-11 09:27:39,672 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_7 given in one single declaration [2021-06-11 09:27:39,672 INFO L130 BoogieDeclarations]: Found specification of procedure set_7 [2021-06-11 09:27:39,672 INFO L138 BoogieDeclarations]: Found implementation of procedure set_7 [2021-06-11 09:27:39,673 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_8 given in one single declaration [2021-06-11 09:27:39,674 INFO L130 BoogieDeclarations]: Found specification of procedure set_8 [2021-06-11 09:27:39,674 INFO L138 BoogieDeclarations]: Found implementation of procedure set_8 [2021-06-11 09:27:39,675 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-11 09:27:39,809 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-11 09:27:39,809 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-06-11 09:27:39,811 INFO L202 PluginConnector]: Adding new model example_10.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.06 09:27:39 BoogieIcfgContainer [2021-06-11 09:27:39,811 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-11 09:27:39,812 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-11 09:27:39,812 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-11 09:27:39,814 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-11 09:27:39,815 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.06 09:27:39" (1/2) ... [2021-06-11 09:27:39,815 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d102752 and model type example_10.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.06 09:27:39, skipping insertion in model container [2021-06-11 09:27:39,816 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example_10.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.06 09:27:39" (2/2) ... [2021-06-11 09:27:39,817 INFO L111 eAbstractionObserver]: Analyzing ICFG example_10.bpl [2021-06-11 09:27:39,822 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-11 09:27:39,825 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-06-11 09:27:39,825 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-11 09:27:39,959 INFO L149 ThreadInstanceAdder]: Constructed 100 joinOtherThreadTransitions. [2021-06-11 09:27:39,975 INFO L253 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2021-06-11 09:27:40,009 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-06-11 09:27:40,010 INFO L377 AbstractCegarLoop]: Hoare is false [2021-06-11 09:27:40,010 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-11 09:27:40,010 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-11 09:27:40,010 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-11 09:27:40,010 INFO L381 AbstractCegarLoop]: Difference is false [2021-06-11 09:27:40,010 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-11 09:27:40,010 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-11 09:27:40,024 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 84 places, 143 transitions, 636 flow [2021-06-11 09:27:40,609 INFO L129 PetriNetUnfolder]: 4097/5153 cut-off events. [2021-06-11 09:27:40,610 INFO L130 PetriNetUnfolder]: For 5120/5120 co-relation queries the response was YES. [2021-06-11 09:27:40,637 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10304 conditions, 5153 events. 4097/5153 cut-off events. For 5120/5120 co-relation queries the response was YES. Maximal size of possible extension queue 274. Compared 20936 event pairs, 0 based on Foata normal form. 0/5152 useless extension candidates. Maximal degree in co-relation 4655. Up to 1260 conditions per place. [2021-06-11 09:27:40,637 INFO L82 GeneralOperation]: Start removeDead. Operand has 84 places, 143 transitions, 636 flow [2021-06-11 09:27:40,697 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 72 places, 131 transitions, 592 flow [2021-06-11 09:27:40,699 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 09:27:40,717 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 72 places, 131 transitions, 592 flow [2021-06-11 09:27:40,724 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 72 places, 131 transitions, 592 flow [2021-06-11 09:27:40,729 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 72 places, 131 transitions, 592 flow [2021-06-11 09:27:41,093 INFO L129 PetriNetUnfolder]: 4097/5151 cut-off events. [2021-06-11 09:27:41,094 INFO L130 PetriNetUnfolder]: For 5120/5120 co-relation queries the response was YES. [2021-06-11 09:27:41,112 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10302 conditions, 5151 events. 4097/5151 cut-off events. For 5120/5120 co-relation queries the response was YES. Maximal size of possible extension queue 274. Compared 20104 event pairs, 0 based on Foata normal form. 0/5151 useless extension candidates. Maximal degree in co-relation 4655. Up to 1260 conditions per place. [2021-06-11 09:27:41,188 INFO L151 LiptonReduction]: Number of co-enabled transitions 3780 [2021-06-11 09:27:41,379 INFO L163 LiptonReduction]: Checked pairs total: 1035 [2021-06-11 09:27:41,379 INFO L165 LiptonReduction]: Total number of compositions: 10 [2021-06-11 09:27:41,382 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 685 [2021-06-11 09:27:41,730 INFO L129 PetriNetUnfolder]: 4097/5140 cut-off events. [2021-06-11 09:27:41,730 INFO L130 PetriNetUnfolder]: For 5120/5120 co-relation queries the response was YES. [2021-06-11 09:27:41,731 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 09:27:41,732 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, 1, 1, 1, 1, 1, 1] [2021-06-11 09:27:41,732 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-11 09:27:41,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 09:27:41,737 INFO L82 PathProgramCache]: Analyzing trace with hash -1999905854, now seen corresponding path program 1 times [2021-06-11 09:27:41,744 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 09:27:41,746 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775480313] [2021-06-11 09:27:41,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 09:27:41,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 09:27:41,890 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 09:27:41,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 09:27:41,906 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 09:27:41,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 09:27:41,912 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 09:27:41,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 09:27:41,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 09:27:41,915 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775480313] [2021-06-11 09:27:41,916 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 09:27:41,916 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-11 09:27:41,916 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290967690] [2021-06-11 09:27:41,931 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-11 09:27:41,931 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 09:27:41,941 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-11 09:27:41,945 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-11 09:27:41,947 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 153 [2021-06-11 09:27:41,952 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 121 transitions, 572 flow. Second operand has 3 states, 3 states have (on average 142.66666666666666) internal successors, (428), 3 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) [2021-06-11 09:27:41,952 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 09:27:41,952 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 153 [2021-06-11 09:27:41,953 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 09:27:42,382 INFO L129 PetriNetUnfolder]: 3764/4762 cut-off events. [2021-06-11 09:27:42,383 INFO L130 PetriNetUnfolder]: For 5812/5812 co-relation queries the response was YES. [2021-06-11 09:27:42,394 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10002 conditions, 4762 events. 3764/4762 cut-off events. For 5812/5812 co-relation queries the response was YES. Maximal size of possible extension queue 274. Compared 21506 event pairs, 0 based on Foata normal form. 46/4808 useless extension candidates. Maximal degree in co-relation 4719. Up to 1260 conditions per place. [2021-06-11 09:27:42,423 INFO L132 encePairwiseOnDemand]: 149/153 looper letters, 7 selfloop transitions, 1 changer transitions 0/118 dead transitions. [2021-06-11 09:27:42,423 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 118 transitions, 573 flow [2021-06-11 09:27:42,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-11 09:27:42,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-06-11 09:27:42,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 437 transitions. [2021-06-11 09:27:42,440 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9520697167755992 [2021-06-11 09:27:42,441 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 437 transitions. [2021-06-11 09:27:42,441 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 437 transitions. [2021-06-11 09:27:42,444 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 09:27:42,446 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 437 transitions. [2021-06-11 09:27:42,450 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 145.66666666666666) internal successors, (437), 3 states have internal predecessors, (437), 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) [2021-06-11 09:27:42,458 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 153.0) internal successors, (612), 4 states have internal predecessors, (612), 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) [2021-06-11 09:27:42,459 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 153.0) internal successors, (612), 4 states have internal predecessors, (612), 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) [2021-06-11 09:27:42,460 INFO L185 Difference]: Start difference. First operand has 62 places, 121 transitions, 572 flow. Second operand 3 states and 437 transitions. [2021-06-11 09:27:42,462 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 118 transitions, 573 flow [2021-06-11 09:27:42,509 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 118 transitions, 359 flow, removed 0 selfloop flow, removed 20 redundant places. [2021-06-11 09:27:42,513 INFO L241 Difference]: Finished difference. Result has 44 places, 118 transitions, 345 flow [2021-06-11 09:27:42,515 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=153, PETRI_DIFFERENCE_MINUEND_FLOW=343, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=118, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=345, PETRI_PLACES=44, PETRI_TRANSITIONS=118} [2021-06-11 09:27:42,516 INFO L343 CegarLoopForPetriNet]: 62 programPoint places, -18 predicate places. [2021-06-11 09:27:42,516 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 09:27:42,517 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 44 places, 118 transitions, 345 flow [2021-06-11 09:27:42,518 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 44 places, 118 transitions, 345 flow [2021-06-11 09:27:42,518 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 44 places, 118 transitions, 345 flow [2021-06-11 09:27:42,711 INFO L129 PetriNetUnfolder]: 3764/4762 cut-off events. [2021-06-11 09:27:42,711 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 09:27:42,718 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4775 conditions, 4762 events. 3764/4762 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 275. Compared 19058 event pairs, 0 based on Foata normal form. 0/4762 useless extension candidates. Maximal degree in co-relation 4764. Up to 1260 conditions per place. [2021-06-11 09:27:42,745 INFO L151 LiptonReduction]: Number of co-enabled transitions 1746 [2021-06-11 09:27:42,768 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 09:27:42,768 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 09:27:42,769 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 253 [2021-06-11 09:27:42,771 INFO L480 AbstractCegarLoop]: Abstraction has has 44 places, 118 transitions, 345 flow [2021-06-11 09:27:42,772 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 142.66666666666666) internal successors, (428), 3 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) [2021-06-11 09:27:42,772 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 09:27:42,772 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, 1, 1, 1, 1, 1, 1] [2021-06-11 09:27:42,772 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-11 09:27:42,772 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-11 09:27:42,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 09:27:42,773 INFO L82 PathProgramCache]: Analyzing trace with hash 229487364, now seen corresponding path program 1 times [2021-06-11 09:27:42,774 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 09:27:42,774 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332227488] [2021-06-11 09:27:42,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 09:27:42,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 09:27:42,826 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 09:27:42,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 09:27:42,829 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 09:27:42,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 09:27:42,834 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 09:27:42,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 09:27:42,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 09:27:42,835 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332227488] [2021-06-11 09:27:42,835 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 09:27:42,835 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-11 09:27:42,835 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624232766] [2021-06-11 09:27:42,836 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-11 09:27:42,836 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 09:27:42,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-11 09:27:42,837 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-11 09:27:42,838 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 153 [2021-06-11 09:27:42,838 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 118 transitions, 345 flow. Second operand has 3 states, 3 states have (on average 142.66666666666666) internal successors, (428), 3 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) [2021-06-11 09:27:42,838 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 09:27:42,838 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 153 [2021-06-11 09:27:42,838 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 09:27:43,032 INFO L129 PetriNetUnfolder]: 3028/3905 cut-off events. [2021-06-11 09:27:43,032 INFO L130 PetriNetUnfolder]: For 475/475 co-relation queries the response was YES. [2021-06-11 09:27:43,037 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4302 conditions, 3905 events. 3028/3905 cut-off events. For 475/475 co-relation queries the response was YES. Maximal size of possible extension queue 274. Compared 18284 event pairs, 0 based on Foata normal form. 93/3998 useless extension candidates. Maximal degree in co-relation 4290. Up to 1260 conditions per place. [2021-06-11 09:27:43,053 INFO L132 encePairwiseOnDemand]: 148/153 looper letters, 6 selfloop transitions, 1 changer transitions 0/114 dead transitions. [2021-06-11 09:27:43,053 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 114 transitions, 347 flow [2021-06-11 09:27:43,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-11 09:27:43,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-06-11 09:27:43,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 437 transitions. [2021-06-11 09:27:43,055 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9520697167755992 [2021-06-11 09:27:43,056 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 437 transitions. [2021-06-11 09:27:43,056 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 437 transitions. [2021-06-11 09:27:43,056 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 09:27:43,056 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 437 transitions. [2021-06-11 09:27:43,057 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 145.66666666666666) internal successors, (437), 3 states have internal predecessors, (437), 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) [2021-06-11 09:27:43,059 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 153.0) internal successors, (612), 4 states have internal predecessors, (612), 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) [2021-06-11 09:27:43,059 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 153.0) internal successors, (612), 4 states have internal predecessors, (612), 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) [2021-06-11 09:27:43,059 INFO L185 Difference]: Start difference. First operand has 44 places, 118 transitions, 345 flow. Second operand 3 states and 437 transitions. [2021-06-11 09:27:43,060 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 114 transitions, 347 flow [2021-06-11 09:27:43,061 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 114 transitions, 346 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-06-11 09:27:43,063 INFO L241 Difference]: Finished difference. Result has 45 places, 114 transitions, 334 flow [2021-06-11 09:27:43,065 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=153, PETRI_DIFFERENCE_MINUEND_FLOW=332, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=334, PETRI_PLACES=45, PETRI_TRANSITIONS=114} [2021-06-11 09:27:43,066 INFO L343 CegarLoopForPetriNet]: 62 programPoint places, -17 predicate places. [2021-06-11 09:27:43,066 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 09:27:43,066 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 45 places, 114 transitions, 334 flow [2021-06-11 09:27:43,067 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 45 places, 114 transitions, 334 flow [2021-06-11 09:27:43,067 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 45 places, 114 transitions, 334 flow [2021-06-11 09:27:43,201 INFO L129 PetriNetUnfolder]: 3028/3905 cut-off events. [2021-06-11 09:27:43,202 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 09:27:43,207 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3919 conditions, 3905 events. 3028/3905 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 281. Compared 15946 event pairs, 0 based on Foata normal form. 0/3905 useless extension candidates. Maximal degree in co-relation 3908. Up to 1260 conditions per place. [2021-06-11 09:27:43,228 INFO L151 LiptonReduction]: Number of co-enabled transitions 1674 [2021-06-11 09:27:43,246 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 09:27:43,247 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 09:27:43,247 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 181 [2021-06-11 09:27:43,248 INFO L480 AbstractCegarLoop]: Abstraction has has 45 places, 114 transitions, 334 flow [2021-06-11 09:27:43,249 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 142.66666666666666) internal successors, (428), 3 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) [2021-06-11 09:27:43,249 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 09:27:43,249 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, 1, 1, 1, 1, 1, 1] [2021-06-11 09:27:43,249 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-11 09:27:43,249 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-11 09:27:43,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 09:27:43,250 INFO L82 PathProgramCache]: Analyzing trace with hash -39454286, now seen corresponding path program 1 times [2021-06-11 09:27:43,250 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 09:27:43,250 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910140981] [2021-06-11 09:27:43,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 09:27:43,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 09:27:43,288 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 09:27:43,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 09:27:43,290 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 09:27:43,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 09:27:43,293 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 09:27:43,293 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 09:27:43,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 09:27:43,294 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910140981] [2021-06-11 09:27:43,294 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 09:27:43,294 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-11 09:27:43,295 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655062108] [2021-06-11 09:27:43,295 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-11 09:27:43,295 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 09:27:43,296 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-11 09:27:43,296 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-11 09:27:43,297 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 153 [2021-06-11 09:27:43,298 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 114 transitions, 334 flow. Second operand has 3 states, 3 states have (on average 142.66666666666666) internal successors, (428), 3 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) [2021-06-11 09:27:43,298 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 09:27:43,298 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 153 [2021-06-11 09:27:43,298 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 09:27:43,386 INFO L129 PetriNetUnfolder]: 1208/1664 cut-off events. [2021-06-11 09:27:43,387 INFO L130 PetriNetUnfolder]: For 390/390 co-relation queries the response was YES. [2021-06-11 09:27:43,389 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1726 conditions, 1664 events. 1208/1664 cut-off events. For 390/390 co-relation queries the response was YES. Maximal size of possible extension queue 134. Compared 7599 event pairs, 0 based on Foata normal form. 344/2008 useless extension candidates. Maximal degree in co-relation 1714. Up to 504 conditions per place. [2021-06-11 09:27:43,400 INFO L132 encePairwiseOnDemand]: 145/153 looper letters, 3 selfloop transitions, 1 changer transitions 0/107 dead transitions. [2021-06-11 09:27:43,400 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 107 transitions, 321 flow [2021-06-11 09:27:43,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-11 09:27:43,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-06-11 09:27:43,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 437 transitions. [2021-06-11 09:27:43,401 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9520697167755992 [2021-06-11 09:27:43,402 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 437 transitions. [2021-06-11 09:27:43,402 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 437 transitions. [2021-06-11 09:27:43,402 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 09:27:43,402 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 437 transitions. [2021-06-11 09:27:43,403 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 145.66666666666666) internal successors, (437), 3 states have internal predecessors, (437), 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) [2021-06-11 09:27:43,404 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 153.0) internal successors, (612), 4 states have internal predecessors, (612), 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) [2021-06-11 09:27:43,404 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 153.0) internal successors, (612), 4 states have internal predecessors, (612), 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) [2021-06-11 09:27:43,404 INFO L185 Difference]: Start difference. First operand has 45 places, 114 transitions, 334 flow. Second operand 3 states and 437 transitions. [2021-06-11 09:27:43,404 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 107 transitions, 321 flow [2021-06-11 09:27:43,406 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 107 transitions, 320 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-06-11 09:27:43,409 INFO L241 Difference]: Finished difference. Result has 46 places, 107 transitions, 314 flow [2021-06-11 09:27:43,409 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=153, PETRI_DIFFERENCE_MINUEND_FLOW=312, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=314, PETRI_PLACES=46, PETRI_TRANSITIONS=107} [2021-06-11 09:27:43,410 INFO L343 CegarLoopForPetriNet]: 62 programPoint places, -16 predicate places. [2021-06-11 09:27:43,410 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 09:27:43,410 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 46 places, 107 transitions, 314 flow [2021-06-11 09:27:43,411 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 46 places, 107 transitions, 314 flow [2021-06-11 09:27:43,411 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 46 places, 107 transitions, 314 flow [2021-06-11 09:27:43,474 INFO L129 PetriNetUnfolder]: 1208/1664 cut-off events. [2021-06-11 09:27:43,474 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 09:27:43,477 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1679 conditions, 1664 events. 1208/1664 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 136. Compared 6518 event pairs, 0 based on Foata normal form. 0/1664 useless extension candidates. Maximal degree in co-relation 1668. Up to 504 conditions per place. [2021-06-11 09:27:43,486 INFO L151 LiptonReduction]: Number of co-enabled transitions 1548 [2021-06-11 09:27:43,504 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 09:27:43,504 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 09:27:43,504 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 94 [2021-06-11 09:27:43,509 INFO L480 AbstractCegarLoop]: Abstraction has has 46 places, 107 transitions, 314 flow [2021-06-11 09:27:43,509 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 142.66666666666666) internal successors, (428), 3 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) [2021-06-11 09:27:43,509 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 09:27:43,510 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, 1, 1, 1, 1, 1, 1] [2021-06-11 09:27:43,510 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-11 09:27:43,510 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-11 09:27:43,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 09:27:43,510 INFO L82 PathProgramCache]: Analyzing trace with hash -1212135468, now seen corresponding path program 1 times [2021-06-11 09:27:43,510 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 09:27:43,511 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356030928] [2021-06-11 09:27:43,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 09:27:43,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 09:27:43,539 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 09:27:43,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 09:27:43,544 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 09:27:43,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 09:27:43,548 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 09:27:43,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 09:27:43,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 09:27:43,550 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356030928] [2021-06-11 09:27:43,550 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 09:27:43,550 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-11 09:27:43,550 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359407816] [2021-06-11 09:27:43,551 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-11 09:27:43,551 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 09:27:43,551 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-11 09:27:43,551 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-11 09:27:43,552 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 153 [2021-06-11 09:27:43,552 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 107 transitions, 314 flow. Second operand has 3 states, 3 states have (on average 142.66666666666666) internal successors, (428), 3 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) [2021-06-11 09:27:43,552 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 09:27:43,553 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 153 [2021-06-11 09:27:43,553 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 09:27:43,605 INFO L129 PetriNetUnfolder]: 524/797 cut-off events. [2021-06-11 09:27:43,605 INFO L130 PetriNetUnfolder]: For 179/179 co-relation queries the response was YES. [2021-06-11 09:27:43,606 INFO L84 FinitePrefix]: Finished finitePrefix Result has 860 conditions, 797 events. 524/797 cut-off events. For 179/179 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 3373 event pairs, 0 based on Foata normal form. 133/930 useless extension candidates. Maximal degree in co-relation 848. Up to 168 conditions per place. [2021-06-11 09:27:43,609 INFO L132 encePairwiseOnDemand]: 146/153 looper letters, 4 selfloop transitions, 1 changer transitions 0/101 dead transitions. [2021-06-11 09:27:43,609 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 101 transitions, 306 flow [2021-06-11 09:27:43,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-11 09:27:43,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-06-11 09:27:43,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 437 transitions. [2021-06-11 09:27:43,612 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9520697167755992 [2021-06-11 09:27:43,612 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 437 transitions. [2021-06-11 09:27:43,612 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 437 transitions. [2021-06-11 09:27:43,612 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 09:27:43,612 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 437 transitions. [2021-06-11 09:27:43,613 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 145.66666666666666) internal successors, (437), 3 states have internal predecessors, (437), 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) [2021-06-11 09:27:43,614 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 153.0) internal successors, (612), 4 states have internal predecessors, (612), 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) [2021-06-11 09:27:43,614 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 153.0) internal successors, (612), 4 states have internal predecessors, (612), 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) [2021-06-11 09:27:43,615 INFO L185 Difference]: Start difference. First operand has 46 places, 107 transitions, 314 flow. Second operand 3 states and 437 transitions. [2021-06-11 09:27:43,615 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 101 transitions, 306 flow [2021-06-11 09:27:43,616 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 101 transitions, 305 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-06-11 09:27:43,618 INFO L241 Difference]: Finished difference. Result has 47 places, 101 transitions, 297 flow [2021-06-11 09:27:43,619 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=153, PETRI_DIFFERENCE_MINUEND_FLOW=295, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=297, PETRI_PLACES=47, PETRI_TRANSITIONS=101} [2021-06-11 09:27:43,619 INFO L343 CegarLoopForPetriNet]: 62 programPoint places, -15 predicate places. [2021-06-11 09:27:43,619 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 09:27:43,619 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 47 places, 101 transitions, 297 flow [2021-06-11 09:27:43,619 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 47 places, 101 transitions, 297 flow [2021-06-11 09:27:43,620 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 47 places, 101 transitions, 297 flow [2021-06-11 09:27:43,648 INFO L129 PetriNetUnfolder]: 524/797 cut-off events. [2021-06-11 09:27:43,648 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 09:27:43,649 INFO L84 FinitePrefix]: Finished finitePrefix Result has 813 conditions, 797 events. 524/797 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 3038 event pairs, 0 based on Foata normal form. 0/797 useless extension candidates. Maximal degree in co-relation 802. Up to 168 conditions per place. [2021-06-11 09:27:43,653 INFO L151 LiptonReduction]: Number of co-enabled transitions 1440 [2021-06-11 09:27:43,660 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 09:27:43,660 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 09:27:43,660 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 41 [2021-06-11 09:27:43,661 INFO L480 AbstractCegarLoop]: Abstraction has has 47 places, 101 transitions, 297 flow [2021-06-11 09:27:43,661 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 142.66666666666666) internal successors, (428), 3 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) [2021-06-11 09:27:43,662 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 09:27:43,662 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, 1, 1, 1, 1, 1, 1] [2021-06-11 09:27:43,662 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-11 09:27:43,662 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-11 09:27:43,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 09:27:43,662 INFO L82 PathProgramCache]: Analyzing trace with hash 318375666, now seen corresponding path program 1 times [2021-06-11 09:27:43,662 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 09:27:43,662 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360568990] [2021-06-11 09:27:43,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 09:27:43,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 09:27:43,698 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 09:27:43,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 09:27:43,700 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 09:27:43,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 09:27:43,721 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 09:27:43,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 09:27:43,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 09:27:43,725 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360568990] [2021-06-11 09:27:43,725 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 09:27:43,725 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-11 09:27:43,725 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183951213] [2021-06-11 09:27:43,725 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-11 09:27:43,725 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 09:27:43,726 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-11 09:27:43,726 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-11 09:27:43,726 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 153 [2021-06-11 09:27:43,727 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 101 transitions, 297 flow. Second operand has 3 states, 3 states have (on average 142.66666666666666) internal successors, (428), 3 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) [2021-06-11 09:27:43,727 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 09:27:43,727 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 153 [2021-06-11 09:27:43,727 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 09:27:43,779 INFO L129 PetriNetUnfolder]: 499/766 cut-off events. [2021-06-11 09:27:43,779 INFO L130 PetriNetUnfolder]: For 87/87 co-relation queries the response was YES. [2021-06-11 09:27:43,781 INFO L84 FinitePrefix]: Finished finitePrefix Result has 865 conditions, 766 events. 499/766 cut-off events. For 87/87 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 3367 event pairs, 0 based on Foata normal form. 6/772 useless extension candidates. Maximal degree in co-relation 852. Up to 168 conditions per place. [2021-06-11 09:27:43,783 INFO L132 encePairwiseOnDemand]: 150/153 looper letters, 8 selfloop transitions, 1 changer transitions 0/99 dead transitions. [2021-06-11 09:27:43,783 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 99 transitions, 309 flow [2021-06-11 09:27:43,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-11 09:27:43,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-06-11 09:27:43,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 437 transitions. [2021-06-11 09:27:43,785 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9520697167755992 [2021-06-11 09:27:43,785 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 437 transitions. [2021-06-11 09:27:43,785 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 437 transitions. [2021-06-11 09:27:43,785 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 09:27:43,785 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 437 transitions. [2021-06-11 09:27:43,786 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 145.66666666666666) internal successors, (437), 3 states have internal predecessors, (437), 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) [2021-06-11 09:27:43,787 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 153.0) internal successors, (612), 4 states have internal predecessors, (612), 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) [2021-06-11 09:27:43,787 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 153.0) internal successors, (612), 4 states have internal predecessors, (612), 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) [2021-06-11 09:27:43,788 INFO L185 Difference]: Start difference. First operand has 47 places, 101 transitions, 297 flow. Second operand 3 states and 437 transitions. [2021-06-11 09:27:43,788 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 99 transitions, 309 flow [2021-06-11 09:27:43,789 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 99 transitions, 308 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-06-11 09:27:43,790 INFO L241 Difference]: Finished difference. Result has 48 places, 99 transitions, 292 flow [2021-06-11 09:27:43,790 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=153, PETRI_DIFFERENCE_MINUEND_FLOW=290, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=292, PETRI_PLACES=48, PETRI_TRANSITIONS=99} [2021-06-11 09:27:43,791 INFO L343 CegarLoopForPetriNet]: 62 programPoint places, -14 predicate places. [2021-06-11 09:27:43,791 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 09:27:43,791 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 48 places, 99 transitions, 292 flow [2021-06-11 09:27:43,791 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 48 places, 99 transitions, 292 flow [2021-06-11 09:27:43,792 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 48 places, 99 transitions, 292 flow [2021-06-11 09:27:43,819 INFO L129 PetriNetUnfolder]: 499/766 cut-off events. [2021-06-11 09:27:43,819 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 09:27:43,820 INFO L84 FinitePrefix]: Finished finitePrefix Result has 783 conditions, 766 events. 499/766 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 2936 event pairs, 0 based on Foata normal form. 0/766 useless extension candidates. Maximal degree in co-relation 774. Up to 168 conditions per place. [2021-06-11 09:27:43,824 INFO L151 LiptonReduction]: Number of co-enabled transitions 1404 [2021-06-11 09:27:43,831 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 09:27:43,832 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 09:27:43,832 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 41 [2021-06-11 09:27:43,835 INFO L480 AbstractCegarLoop]: Abstraction has has 48 places, 99 transitions, 292 flow [2021-06-11 09:27:43,835 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 142.66666666666666) internal successors, (428), 3 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) [2021-06-11 09:27:43,836 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 09:27:43,836 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, 1, 1, 1, 1, 1, 1] [2021-06-11 09:27:43,836 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-11 09:27:43,836 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-11 09:27:43,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 09:27:43,839 INFO L82 PathProgramCache]: Analyzing trace with hash -1259935062, now seen corresponding path program 1 times [2021-06-11 09:27:43,839 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 09:27:43,839 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529872770] [2021-06-11 09:27:43,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 09:27:43,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 09:27:43,868 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 09:27:43,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 09:27:43,870 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 09:27:43,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 09:27:43,873 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 09:27:43,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 09:27:43,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 09:27:43,875 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529872770] [2021-06-11 09:27:43,875 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 09:27:43,875 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-11 09:27:43,875 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294227697] [2021-06-11 09:27:43,876 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-11 09:27:43,876 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 09:27:43,876 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-11 09:27:43,876 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-11 09:27:43,877 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 153 [2021-06-11 09:27:43,877 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 99 transitions, 292 flow. Second operand has 3 states, 3 states have (on average 142.66666666666666) internal successors, (428), 3 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) [2021-06-11 09:27:43,877 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 09:27:43,877 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 153 [2021-06-11 09:27:43,878 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 09:27:43,904 INFO L129 PetriNetUnfolder]: 109/212 cut-off events. [2021-06-11 09:27:43,905 INFO L130 PetriNetUnfolder]: For 82/82 co-relation queries the response was YES. [2021-06-11 09:27:43,905 INFO L84 FinitePrefix]: Finished finitePrefix Result has 232 conditions, 212 events. 109/212 cut-off events. For 82/82 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 766 event pairs, 0 based on Foata normal form. 81/293 useless extension candidates. Maximal degree in co-relation 222. Up to 45 conditions per place. [2021-06-11 09:27:43,906 INFO L132 encePairwiseOnDemand]: 143/153 looper letters, 1 selfloop transitions, 1 changer transitions 0/81 dead transitions. [2021-06-11 09:27:43,906 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 81 transitions, 242 flow [2021-06-11 09:27:43,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-11 09:27:43,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-06-11 09:27:43,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 437 transitions. [2021-06-11 09:27:43,907 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9520697167755992 [2021-06-11 09:27:43,907 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 437 transitions. [2021-06-11 09:27:43,908 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 437 transitions. [2021-06-11 09:27:43,908 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 09:27:43,908 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 437 transitions. [2021-06-11 09:27:43,909 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 145.66666666666666) internal successors, (437), 3 states have internal predecessors, (437), 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) [2021-06-11 09:27:43,910 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 153.0) internal successors, (612), 4 states have internal predecessors, (612), 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) [2021-06-11 09:27:43,911 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 153.0) internal successors, (612), 4 states have internal predecessors, (612), 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) [2021-06-11 09:27:43,911 INFO L185 Difference]: Start difference. First operand has 48 places, 99 transitions, 292 flow. Second operand 3 states and 437 transitions. [2021-06-11 09:27:43,911 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 81 transitions, 242 flow [2021-06-11 09:27:43,912 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 81 transitions, 241 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-06-11 09:27:43,916 INFO L241 Difference]: Finished difference. Result has 49 places, 81 transitions, 239 flow [2021-06-11 09:27:43,916 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=153, PETRI_DIFFERENCE_MINUEND_FLOW=237, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=239, PETRI_PLACES=49, PETRI_TRANSITIONS=81} [2021-06-11 09:27:43,916 INFO L343 CegarLoopForPetriNet]: 62 programPoint places, -13 predicate places. [2021-06-11 09:27:43,916 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 09:27:43,917 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 49 places, 81 transitions, 239 flow [2021-06-11 09:27:43,917 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 49 places, 81 transitions, 239 flow [2021-06-11 09:27:43,917 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 49 places, 81 transitions, 239 flow [2021-06-11 09:27:43,926 INFO L129 PetriNetUnfolder]: 109/212 cut-off events. [2021-06-11 09:27:43,926 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 09:27:43,926 INFO L84 FinitePrefix]: Finished finitePrefix Result has 230 conditions, 212 events. 109/212 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 657 event pairs, 0 based on Foata normal form. 0/212 useless extension candidates. Maximal degree in co-relation 221. Up to 45 conditions per place. [2021-06-11 09:27:43,927 INFO L151 LiptonReduction]: Number of co-enabled transitions 902 [2021-06-11 09:27:43,931 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 09:27:43,931 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 09:27:43,931 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 15 [2021-06-11 09:27:43,932 INFO L480 AbstractCegarLoop]: Abstraction has has 49 places, 81 transitions, 239 flow [2021-06-11 09:27:43,933 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 142.66666666666666) internal successors, (428), 3 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) [2021-06-11 09:27:43,933 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 09:27:43,933 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, 1, 1, 1, 1, 1, 1] [2021-06-11 09:27:43,933 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-06-11 09:27:43,933 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-11 09:27:43,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 09:27:43,934 INFO L82 PathProgramCache]: Analyzing trace with hash 1291197958, now seen corresponding path program 1 times [2021-06-11 09:27:43,934 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 09:27:43,934 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650362016] [2021-06-11 09:27:43,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 09:27:43,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 09:27:43,954 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 09:27:43,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 09:27:43,955 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 09:27:43,955 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 09:27:43,958 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 09:27:43,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 09:27:43,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 09:27:43,959 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1650362016] [2021-06-11 09:27:43,959 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 09:27:43,959 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-11 09:27:43,959 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377755176] [2021-06-11 09:27:43,959 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-11 09:27:43,959 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 09:27:43,960 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-11 09:27:43,960 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-11 09:27:43,960 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 153 [2021-06-11 09:27:43,962 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 81 transitions, 239 flow. Second operand has 3 states, 3 states have (on average 142.66666666666666) internal successors, (428), 3 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) [2021-06-11 09:27:43,962 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 09:27:43,962 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 153 [2021-06-11 09:27:43,962 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 09:27:43,973 INFO L129 PetriNetUnfolder]: 17/64 cut-off events. [2021-06-11 09:27:43,973 INFO L130 PetriNetUnfolder]: For 25/25 co-relation queries the response was YES. [2021-06-11 09:27:43,974 INFO L84 FinitePrefix]: Finished finitePrefix Result has 85 conditions, 64 events. 17/64 cut-off events. For 25/25 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 119 event pairs, 0 based on Foata normal form. 24/88 useless extension candidates. Maximal degree in co-relation 75. Up to 10 conditions per place. [2021-06-11 09:27:43,974 INFO L132 encePairwiseOnDemand]: 144/153 looper letters, 1 selfloop transitions, 1 changer transitions 0/52 dead transitions. [2021-06-11 09:27:43,974 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 52 transitions, 156 flow [2021-06-11 09:27:43,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-11 09:27:43,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-06-11 09:27:43,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 436 transitions. [2021-06-11 09:27:43,976 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9498910675381264 [2021-06-11 09:27:43,976 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 436 transitions. [2021-06-11 09:27:43,976 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 436 transitions. [2021-06-11 09:27:43,976 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 09:27:43,976 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 436 transitions. [2021-06-11 09:27:43,977 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 145.33333333333334) internal successors, (436), 3 states have internal predecessors, (436), 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) [2021-06-11 09:27:43,979 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 153.0) internal successors, (612), 4 states have internal predecessors, (612), 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) [2021-06-11 09:27:43,979 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 153.0) internal successors, (612), 4 states have internal predecessors, (612), 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) [2021-06-11 09:27:43,979 INFO L185 Difference]: Start difference. First operand has 49 places, 81 transitions, 239 flow. Second operand 3 states and 436 transitions. [2021-06-11 09:27:43,980 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 52 transitions, 156 flow [2021-06-11 09:27:43,980 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 52 transitions, 155 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-06-11 09:27:43,981 INFO L241 Difference]: Finished difference. Result has 50 places, 52 transitions, 153 flow [2021-06-11 09:27:43,981 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=153, PETRI_DIFFERENCE_MINUEND_FLOW=151, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=153, PETRI_PLACES=50, PETRI_TRANSITIONS=52} [2021-06-11 09:27:43,981 INFO L343 CegarLoopForPetriNet]: 62 programPoint places, -12 predicate places. [2021-06-11 09:27:43,981 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 09:27:43,981 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 50 places, 52 transitions, 153 flow [2021-06-11 09:27:43,982 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 50 places, 52 transitions, 153 flow [2021-06-11 09:27:43,982 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 50 places, 52 transitions, 153 flow [2021-06-11 09:27:43,985 INFO L129 PetriNetUnfolder]: 17/64 cut-off events. [2021-06-11 09:27:43,985 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 09:27:43,986 INFO L84 FinitePrefix]: Finished finitePrefix Result has 83 conditions, 64 events. 17/64 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 116 event pairs, 0 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 74. Up to 10 conditions per place. [2021-06-11 09:27:43,986 INFO L151 LiptonReduction]: Number of co-enabled transitions 542 [2021-06-11 09:27:43,988 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 09:27:43,988 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 09:27:43,988 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 7 [2021-06-11 09:27:43,989 INFO L480 AbstractCegarLoop]: Abstraction has has 50 places, 52 transitions, 153 flow [2021-06-11 09:27:43,989 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 142.66666666666666) internal successors, (428), 3 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) [2021-06-11 09:27:43,989 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 09:27:43,989 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, 1, 1, 1, 1, 1, 1] [2021-06-11 09:27:43,989 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-06-11 09:27:43,989 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-11 09:27:43,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 09:27:43,990 INFO L82 PathProgramCache]: Analyzing trace with hash 937811846, now seen corresponding path program 1 times [2021-06-11 09:27:43,990 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 09:27:43,991 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791123847] [2021-06-11 09:27:43,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 09:27:43,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 09:27:44,018 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 09:27:44,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 09:27:44,019 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 09:27:44,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 09:27:44,022 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 09:27:44,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 09:27:44,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 09:27:44,023 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791123847] [2021-06-11 09:27:44,023 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 09:27:44,023 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-11 09:27:44,023 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520316667] [2021-06-11 09:27:44,024 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-11 09:27:44,024 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 09:27:44,024 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-11 09:27:44,024 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-11 09:27:44,025 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 153 [2021-06-11 09:27:44,026 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 52 transitions, 153 flow. Second operand has 3 states, 3 states have (on average 142.66666666666666) internal successors, (428), 3 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) [2021-06-11 09:27:44,026 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 09:27:44,026 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 153 [2021-06-11 09:27:44,026 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 09:27:44,035 INFO L129 PetriNetUnfolder]: 1/33 cut-off events. [2021-06-11 09:27:44,035 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2021-06-11 09:27:44,036 INFO L84 FinitePrefix]: Finished finitePrefix Result has 55 conditions, 33 events. 1/33 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 22 event pairs, 0 based on Foata normal form. 6/39 useless extension candidates. Maximal degree in co-relation 45. Up to 2 conditions per place. [2021-06-11 09:27:44,036 INFO L132 encePairwiseOnDemand]: 147/153 looper letters, 1 selfloop transitions, 1 changer transitions 0/33 dead transitions. [2021-06-11 09:27:44,036 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 33 transitions, 100 flow [2021-06-11 09:27:44,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-11 09:27:44,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-06-11 09:27:44,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 433 transitions. [2021-06-11 09:27:44,038 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9433551198257081 [2021-06-11 09:27:44,038 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 433 transitions. [2021-06-11 09:27:44,038 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 433 transitions. [2021-06-11 09:27:44,038 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 09:27:44,038 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 433 transitions. [2021-06-11 09:27:44,039 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 144.33333333333334) internal successors, (433), 3 states have internal predecessors, (433), 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) [2021-06-11 09:27:44,040 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 153.0) internal successors, (612), 4 states have internal predecessors, (612), 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) [2021-06-11 09:27:44,040 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 153.0) internal successors, (612), 4 states have internal predecessors, (612), 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) [2021-06-11 09:27:44,040 INFO L185 Difference]: Start difference. First operand has 50 places, 52 transitions, 153 flow. Second operand 3 states and 433 transitions. [2021-06-11 09:27:44,040 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 33 transitions, 100 flow [2021-06-11 09:27:44,041 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 33 transitions, 99 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-06-11 09:27:44,042 INFO L241 Difference]: Finished difference. Result has 51 places, 33 transitions, 97 flow [2021-06-11 09:27:44,042 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=153, PETRI_DIFFERENCE_MINUEND_FLOW=95, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=97, PETRI_PLACES=51, PETRI_TRANSITIONS=33} [2021-06-11 09:27:44,042 INFO L343 CegarLoopForPetriNet]: 62 programPoint places, -11 predicate places. [2021-06-11 09:27:44,042 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 09:27:44,042 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 51 places, 33 transitions, 97 flow [2021-06-11 09:27:44,043 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 51 places, 33 transitions, 97 flow [2021-06-11 09:27:44,043 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 51 places, 33 transitions, 97 flow [2021-06-11 09:27:44,046 INFO L129 PetriNetUnfolder]: 1/33 cut-off events. [2021-06-11 09:27:44,046 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 09:27:44,046 INFO L84 FinitePrefix]: Finished finitePrefix Result has 53 conditions, 33 events. 1/33 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 22 event pairs, 0 based on Foata normal form. 0/33 useless extension candidates. Maximal degree in co-relation 44. Up to 2 conditions per place. [2021-06-11 09:27:44,046 INFO L151 LiptonReduction]: Number of co-enabled transitions 304 [2021-06-11 09:27:44,047 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 09:27:44,047 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 09:27:44,048 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 6 [2021-06-11 09:27:44,051 INFO L480 AbstractCegarLoop]: Abstraction has has 51 places, 33 transitions, 97 flow [2021-06-11 09:27:44,051 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 142.66666666666666) internal successors, (428), 3 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) [2021-06-11 09:27:44,051 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 09:27:44,051 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, 1, 1, 1, 1, 1, 1] [2021-06-11 09:27:44,051 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-06-11 09:27:44,052 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-11 09:27:44,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 09:27:44,052 INFO L82 PathProgramCache]: Analyzing trace with hash -300766876, now seen corresponding path program 1 times [2021-06-11 09:27:44,052 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 09:27:44,052 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2116833470] [2021-06-11 09:27:44,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 09:27:44,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 09:27:44,168 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 09:27:44,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 09:27:44,174 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 09:27:44,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 09:27:44,189 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-06-11 09:27:44,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 09:27:44,211 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-06-11 09:27:44,213 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-06-11 09:27:44,248 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-06-11 09:27:44,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-06-11 09:27:44,300 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-06-11 09:27:44,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-06-11 09:27:44,357 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-06-11 09:27:44,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-06-11 09:27:44,414 INFO L142 QuantifierPusher]: treesize reduction 54, result has 50.5 percent of original size [2021-06-11 09:27:44,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-06-11 09:27:44,464 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-06-11 09:27:44,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-06-11 09:27:44,521 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-06-11 09:27:44,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-06-11 09:27:44,585 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-06-11 09:27:44,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-06-11 09:27:44,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 09:27:44,646 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2116833470] [2021-06-11 09:27:44,646 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 09:27:44,646 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-06-11 09:27:44,647 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117547291] [2021-06-11 09:27:44,648 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-06-11 09:27:44,648 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 09:27:44,648 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-06-11 09:27:44,648 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-06-11 09:27:44,650 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 153 [2021-06-11 09:27:44,652 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 33 transitions, 97 flow. Second operand has 12 states, 12 states have (on average 131.91666666666666) internal successors, (1583), 12 states have internal predecessors, (1583), 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) [2021-06-11 09:27:44,652 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 09:27:44,652 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 153 [2021-06-11 09:27:44,652 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 09:27:45,216 INFO L129 PetriNetUnfolder]: 5451/7502 cut-off events. [2021-06-11 09:27:45,216 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-11 09:27:45,243 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14445 conditions, 7502 events. 5451/7502 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 677. Compared 41588 event pairs, 1793 based on Foata normal form. 1/7250 useless extension candidates. Maximal degree in co-relation 14435. Up to 2561 conditions per place. [2021-06-11 09:27:45,276 INFO L132 encePairwiseOnDemand]: 142/153 looper letters, 54 selfloop transitions, 10 changer transitions 0/86 dead transitions. [2021-06-11 09:27:45,276 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 86 transitions, 331 flow [2021-06-11 09:27:45,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-11 09:27:45,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-06-11 09:27:45,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1637 transitions. [2021-06-11 09:27:45,279 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8916122004357299 [2021-06-11 09:27:45,279 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1637 transitions. [2021-06-11 09:27:45,280 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1637 transitions. [2021-06-11 09:27:45,280 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 09:27:45,280 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1637 transitions. [2021-06-11 09:27:45,283 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 136.41666666666666) internal successors, (1637), 12 states have internal predecessors, (1637), 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) [2021-06-11 09:27:45,286 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 153.0) internal successors, (1989), 13 states have internal predecessors, (1989), 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) [2021-06-11 09:27:45,286 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 153.0) internal successors, (1989), 13 states have internal predecessors, (1989), 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) [2021-06-11 09:27:45,287 INFO L185 Difference]: Start difference. First operand has 51 places, 33 transitions, 97 flow. Second operand 12 states and 1637 transitions. [2021-06-11 09:27:45,287 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 86 transitions, 331 flow [2021-06-11 09:27:45,288 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 86 transitions, 330 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-06-11 09:27:45,289 INFO L241 Difference]: Finished difference. Result has 71 places, 42 transitions, 173 flow [2021-06-11 09:27:45,289 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=153, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=173, PETRI_PLACES=71, PETRI_TRANSITIONS=42} [2021-06-11 09:27:45,290 INFO L343 CegarLoopForPetriNet]: 62 programPoint places, 9 predicate places. [2021-06-11 09:27:45,290 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 09:27:45,290 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 71 places, 42 transitions, 173 flow [2021-06-11 09:27:45,290 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 71 places, 42 transitions, 173 flow [2021-06-11 09:27:45,290 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 71 places, 42 transitions, 173 flow [2021-06-11 09:27:45,298 INFO L129 PetriNetUnfolder]: 4/124 cut-off events. [2021-06-11 09:27:45,299 INFO L130 PetriNetUnfolder]: For 19/19 co-relation queries the response was YES. [2021-06-11 09:27:45,299 INFO L84 FinitePrefix]: Finished finitePrefix Result has 208 conditions, 124 events. 4/124 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 573 event pairs, 0 based on Foata normal form. 0/109 useless extension candidates. Maximal degree in co-relation 189. Up to 10 conditions per place. [2021-06-11 09:27:45,300 INFO L151 LiptonReduction]: Number of co-enabled transitions 508 [2021-06-11 09:27:45,301 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 09:27:45,301 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 09:27:45,302 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 12 [2021-06-11 09:27:45,302 INFO L480 AbstractCegarLoop]: Abstraction has has 71 places, 42 transitions, 173 flow [2021-06-11 09:27:45,303 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 131.91666666666666) internal successors, (1583), 12 states have internal predecessors, (1583), 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) [2021-06-11 09:27:45,303 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 09:27:45,303 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, 1, 1, 1, 1, 1, 1] [2021-06-11 09:27:45,303 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-06-11 09:27:45,303 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-11 09:27:45,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 09:27:45,304 INFO L82 PathProgramCache]: Analyzing trace with hash -2005207858, now seen corresponding path program 2 times [2021-06-11 09:27:45,304 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 09:27:45,304 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348218049] [2021-06-11 09:27:45,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 09:27:45,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 09:27:45,341 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 09:27:45,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 09:27:45,342 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 09:27:45,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 09:27:45,347 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 09:27:45,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 09:27:45,355 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-06-11 09:27:45,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 09:27:45,377 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-06-11 09:27:45,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-06-11 09:27:45,403 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-06-11 09:27:45,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-06-11 09:27:45,431 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-06-11 09:27:45,432 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-06-11 09:27:45,468 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-06-11 09:27:45,470 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-06-11 09:27:45,520 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-06-11 09:27:45,521 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-06-11 09:27:45,573 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-06-11 09:27:45,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-06-11 09:27:45,633 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-06-11 09:27:45,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-06-11 09:27:45,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 09:27:45,688 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348218049] [2021-06-11 09:27:45,688 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 09:27:45,688 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-06-11 09:27:45,688 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845946178] [2021-06-11 09:27:45,688 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-06-11 09:27:45,688 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 09:27:45,689 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-06-11 09:27:45,689 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-06-11 09:27:45,691 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 153 [2021-06-11 09:27:45,698 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 42 transitions, 173 flow. Second operand has 12 states, 12 states have (on average 131.91666666666666) internal successors, (1583), 12 states have internal predecessors, (1583), 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) [2021-06-11 09:27:45,698 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 09:27:45,699 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 153 [2021-06-11 09:27:45,699 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 09:27:46,845 INFO L129 PetriNetUnfolder]: 7397/11813 cut-off events. [2021-06-11 09:27:46,846 INFO L130 PetriNetUnfolder]: For 11652/11673 co-relation queries the response was YES. [2021-06-11 09:27:46,897 INFO L84 FinitePrefix]: Finished finitePrefix Result has 31216 conditions, 11813 events. 7397/11813 cut-off events. For 11652/11673 co-relation queries the response was YES. Maximal size of possible extension queue 813. Compared 83482 event pairs, 2307 based on Foata normal form. 1/11559 useless extension candidates. Maximal degree in co-relation 31196. Up to 3497 conditions per place. [2021-06-11 09:27:46,954 INFO L132 encePairwiseOnDemand]: 142/153 looper letters, 78 selfloop transitions, 17 changer transitions 0/117 dead transitions. [2021-06-11 09:27:46,954 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 117 transitions, 716 flow [2021-06-11 09:27:46,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-11 09:27:46,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-06-11 09:27:46,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1637 transitions. [2021-06-11 09:27:46,958 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8916122004357299 [2021-06-11 09:27:46,958 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1637 transitions. [2021-06-11 09:27:46,959 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1637 transitions. [2021-06-11 09:27:46,959 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 09:27:46,959 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1637 transitions. [2021-06-11 09:27:46,962 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 136.41666666666666) internal successors, (1637), 12 states have internal predecessors, (1637), 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) [2021-06-11 09:27:46,966 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 153.0) internal successors, (1989), 13 states have internal predecessors, (1989), 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) [2021-06-11 09:27:46,967 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 153.0) internal successors, (1989), 13 states have internal predecessors, (1989), 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) [2021-06-11 09:27:46,967 INFO L185 Difference]: Start difference. First operand has 71 places, 42 transitions, 173 flow. Second operand 12 states and 1637 transitions. [2021-06-11 09:27:46,967 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 117 transitions, 716 flow [2021-06-11 09:27:46,972 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 117 transitions, 706 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-06-11 09:27:46,973 INFO L241 Difference]: Finished difference. Result has 91 places, 57 transitions, 342 flow [2021-06-11 09:27:46,974 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=153, PETRI_DIFFERENCE_MINUEND_FLOW=172, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=342, PETRI_PLACES=91, PETRI_TRANSITIONS=57} [2021-06-11 09:27:46,975 INFO L343 CegarLoopForPetriNet]: 62 programPoint places, 29 predicate places. [2021-06-11 09:27:46,975 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 09:27:46,975 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 91 places, 57 transitions, 342 flow [2021-06-11 09:27:46,975 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 91 places, 57 transitions, 342 flow [2021-06-11 09:27:46,976 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 91 places, 57 transitions, 342 flow [2021-06-11 09:27:47,006 INFO L129 PetriNetUnfolder]: 10/375 cut-off events. [2021-06-11 09:27:47,006 INFO L130 PetriNetUnfolder]: For 212/226 co-relation queries the response was YES. [2021-06-11 09:27:47,008 INFO L84 FinitePrefix]: Finished finitePrefix Result has 683 conditions, 375 events. 10/375 cut-off events. For 212/226 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 3093 event pairs, 0 based on Foata normal form. 0/325 useless extension candidates. Maximal degree in co-relation 654. Up to 37 conditions per place. [2021-06-11 09:27:47,011 INFO L151 LiptonReduction]: Number of co-enabled transitions 746 [2021-06-11 09:27:47,013 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 09:27:47,014 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 09:27:47,014 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 39 [2021-06-11 09:27:47,014 INFO L480 AbstractCegarLoop]: Abstraction has has 91 places, 57 transitions, 342 flow [2021-06-11 09:27:47,015 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 131.91666666666666) internal successors, (1583), 12 states have internal predecessors, (1583), 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) [2021-06-11 09:27:47,015 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 09:27:47,015 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, 1, 1, 1, 1, 1, 1] [2021-06-11 09:27:47,015 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-06-11 09:27:47,016 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-11 09:27:47,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 09:27:47,016 INFO L82 PathProgramCache]: Analyzing trace with hash -629502388, now seen corresponding path program 3 times [2021-06-11 09:27:47,016 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 09:27:47,016 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021907005] [2021-06-11 09:27:47,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 09:27:47,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 09:27:47,164 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 09:27:47,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 09:27:47,165 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 09:27:47,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 09:27:47,170 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 09:27:47,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 09:27:47,179 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-06-11 09:27:47,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 09:27:47,192 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-06-11 09:27:47,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-06-11 09:27:47,212 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-06-11 09:27:47,213 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-06-11 09:27:47,248 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-06-11 09:27:47,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-06-11 09:27:47,279 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-06-11 09:27:47,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-06-11 09:27:47,319 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-06-11 09:27:47,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-06-11 09:27:47,370 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-06-11 09:27:47,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-06-11 09:27:47,426 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-06-11 09:27:47,427 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-06-11 09:27:47,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 09:27:47,475 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021907005] [2021-06-11 09:27:47,475 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 09:27:47,475 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-06-11 09:27:47,475 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659697349] [2021-06-11 09:27:47,476 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-06-11 09:27:47,476 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 09:27:47,477 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-06-11 09:27:47,477 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-06-11 09:27:47,478 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 153 [2021-06-11 09:27:47,479 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 57 transitions, 342 flow. Second operand has 12 states, 12 states have (on average 131.91666666666666) internal successors, (1583), 12 states have internal predecessors, (1583), 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) [2021-06-11 09:27:47,479 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 09:27:47,480 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 153 [2021-06-11 09:27:47,480 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 09:27:49,111 INFO L129 PetriNetUnfolder]: 9902/16979 cut-off events. [2021-06-11 09:27:49,112 INFO L130 PetriNetUnfolder]: For 44887/45655 co-relation queries the response was YES. [2021-06-11 09:27:49,314 INFO L84 FinitePrefix]: Finished finitePrefix Result has 57174 conditions, 16979 events. 9902/16979 cut-off events. For 44887/45655 co-relation queries the response was YES. Maximal size of possible extension queue 1442. Compared 140887 event pairs, 2941 based on Foata normal form. 1/16716 useless extension candidates. Maximal degree in co-relation 57144. Up to 4901 conditions per place. [2021-06-11 09:27:49,409 INFO L132 encePairwiseOnDemand]: 142/153 looper letters, 102 selfloop transitions, 31 changer transitions 0/155 dead transitions. [2021-06-11 09:27:49,409 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 155 transitions, 1313 flow [2021-06-11 09:27:49,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-11 09:27:49,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-06-11 09:27:49,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1637 transitions. [2021-06-11 09:27:49,413 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8916122004357299 [2021-06-11 09:27:49,413 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1637 transitions. [2021-06-11 09:27:49,413 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1637 transitions. [2021-06-11 09:27:49,414 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 09:27:49,414 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1637 transitions. [2021-06-11 09:27:49,417 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 136.41666666666666) internal successors, (1637), 12 states have internal predecessors, (1637), 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) [2021-06-11 09:27:49,420 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 153.0) internal successors, (1989), 13 states have internal predecessors, (1989), 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) [2021-06-11 09:27:49,420 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 153.0) internal successors, (1989), 13 states have internal predecessors, (1989), 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) [2021-06-11 09:27:49,420 INFO L185 Difference]: Start difference. First operand has 91 places, 57 transitions, 342 flow. Second operand 12 states and 1637 transitions. [2021-06-11 09:27:49,421 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 155 transitions, 1313 flow [2021-06-11 09:27:49,489 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 155 transitions, 1292 flow, removed 5 selfloop flow, removed 1 redundant places. [2021-06-11 09:27:49,492 INFO L241 Difference]: Finished difference. Result has 111 places, 85 transitions, 731 flow [2021-06-11 09:27:49,493 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=153, PETRI_DIFFERENCE_MINUEND_FLOW=336, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=731, PETRI_PLACES=111, PETRI_TRANSITIONS=85} [2021-06-11 09:27:49,493 INFO L343 CegarLoopForPetriNet]: 62 programPoint places, 49 predicate places. [2021-06-11 09:27:49,493 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 09:27:49,493 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 111 places, 85 transitions, 731 flow [2021-06-11 09:27:49,493 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 111 places, 85 transitions, 731 flow [2021-06-11 09:27:49,494 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 111 places, 85 transitions, 731 flow [2021-06-11 09:27:49,585 INFO L129 PetriNetUnfolder]: 22/836 cut-off events. [2021-06-11 09:27:49,585 INFO L130 PetriNetUnfolder]: For 1038/1128 co-relation queries the response was YES. [2021-06-11 09:27:49,590 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1708 conditions, 836 events. 22/836 cut-off events. For 1038/1128 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 8964 event pairs, 0 based on Foata normal form. 2/731 useless extension candidates. Maximal degree in co-relation 1669. Up to 84 conditions per place. [2021-06-11 09:27:49,599 INFO L151 LiptonReduction]: Number of co-enabled transitions 1190 [2021-06-11 09:27:49,603 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 09:27:49,603 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 09:27:49,603 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 110 [2021-06-11 09:27:49,604 INFO L480 AbstractCegarLoop]: Abstraction has has 111 places, 85 transitions, 731 flow [2021-06-11 09:27:49,605 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 131.91666666666666) internal successors, (1583), 12 states have internal predecessors, (1583), 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) [2021-06-11 09:27:49,605 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 09:27:49,605 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, 1, 1, 1, 1, 1, 1] [2021-06-11 09:27:49,605 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-06-11 09:27:49,605 INFO L428 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-11 09:27:49,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 09:27:49,605 INFO L82 PathProgramCache]: Analyzing trace with hash -263008046, now seen corresponding path program 4 times [2021-06-11 09:27:49,606 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 09:27:49,606 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226390278] [2021-06-11 09:27:49,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 09:27:49,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 09:27:49,691 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 09:27:49,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 09:27:49,692 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 09:27:49,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 09:27:49,697 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 09:27:49,697 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 09:27:49,705 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-06-11 09:27:49,705 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 09:27:49,719 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-06-11 09:27:49,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-06-11 09:27:49,743 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-06-11 09:27:49,743 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-06-11 09:27:49,769 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-06-11 09:27:49,771 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-06-11 09:27:49,803 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-06-11 09:27:49,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-06-11 09:27:49,841 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-06-11 09:27:49,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-06-11 09:27:49,890 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-06-11 09:27:49,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-06-11 09:27:49,945 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-06-11 09:27:49,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-06-11 09:27:49,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 09:27:49,995 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226390278] [2021-06-11 09:27:49,995 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 09:27:49,995 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-06-11 09:27:49,995 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814109452] [2021-06-11 09:27:49,996 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-06-11 09:27:49,996 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 09:27:49,996 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-06-11 09:27:49,996 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-06-11 09:27:49,997 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 153 [2021-06-11 09:27:49,998 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 85 transitions, 731 flow. Second operand has 12 states, 12 states have (on average 131.91666666666666) internal successors, (1583), 12 states have internal predecessors, (1583), 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) [2021-06-11 09:27:49,998 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 09:27:49,998 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 153 [2021-06-11 09:27:49,999 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 09:27:52,591 INFO L129 PetriNetUnfolder]: 13302/24253 cut-off events. [2021-06-11 09:27:52,592 INFO L130 PetriNetUnfolder]: For 120897/122063 co-relation queries the response was YES. [2021-06-11 09:27:52,766 INFO L84 FinitePrefix]: Finished finitePrefix Result has 98494 conditions, 24253 events. 13302/24253 cut-off events. For 120897/122063 co-relation queries the response was YES. Maximal size of possible extension queue 2266. Compared 229626 event pairs, 3901 based on Foata normal form. 1/23944 useless extension candidates. Maximal degree in co-relation 98454. Up to 6916 conditions per place. [2021-06-11 09:27:52,893 INFO L132 encePairwiseOnDemand]: 142/153 looper letters, 145 selfloop transitions, 57 changer transitions 0/224 dead transitions. [2021-06-11 09:27:52,893 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 224 transitions, 2538 flow [2021-06-11 09:27:52,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-11 09:27:52,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-06-11 09:27:52,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1637 transitions. [2021-06-11 09:27:52,897 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8916122004357299 [2021-06-11 09:27:52,897 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1637 transitions. [2021-06-11 09:27:52,897 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1637 transitions. [2021-06-11 09:27:52,898 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 09:27:52,898 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1637 transitions. [2021-06-11 09:27:52,901 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 136.41666666666666) internal successors, (1637), 12 states have internal predecessors, (1637), 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) [2021-06-11 09:27:52,903 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 153.0) internal successors, (1989), 13 states have internal predecessors, (1989), 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) [2021-06-11 09:27:52,904 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 153.0) internal successors, (1989), 13 states have internal predecessors, (1989), 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) [2021-06-11 09:27:52,904 INFO L185 Difference]: Start difference. First operand has 111 places, 85 transitions, 731 flow. Second operand 12 states and 1637 transitions. [2021-06-11 09:27:52,904 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 224 transitions, 2538 flow [2021-06-11 09:27:53,115 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 224 transitions, 2516 flow, removed 5 selfloop flow, removed 1 redundant places. [2021-06-11 09:27:53,118 INFO L241 Difference]: Finished difference. Result has 131 places, 137 transitions, 1611 flow [2021-06-11 09:27:53,119 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=153, PETRI_DIFFERENCE_MINUEND_FLOW=722, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1611, PETRI_PLACES=131, PETRI_TRANSITIONS=137} [2021-06-11 09:27:53,119 INFO L343 CegarLoopForPetriNet]: 62 programPoint places, 69 predicate places. [2021-06-11 09:27:53,119 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 09:27:53,119 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 131 places, 137 transitions, 1611 flow [2021-06-11 09:27:53,119 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 131 places, 137 transitions, 1611 flow [2021-06-11 09:27:53,120 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 131 places, 137 transitions, 1611 flow [2021-06-11 09:27:53,378 INFO L129 PetriNetUnfolder]: 46/1673 cut-off events. [2021-06-11 09:27:53,379 INFO L130 PetriNetUnfolder]: For 3717/4010 co-relation queries the response was YES. [2021-06-11 09:27:53,391 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3845 conditions, 1673 events. 46/1673 cut-off events. For 3717/4010 co-relation queries the response was YES. Maximal size of possible extension queue 167. Compared 21345 event pairs, 0 based on Foata normal form. 12/1485 useless extension candidates. Maximal degree in co-relation 3796. Up to 167 conditions per place. [2021-06-11 09:27:53,410 INFO L151 LiptonReduction]: Number of co-enabled transitions 1984 [2021-06-11 09:27:53,420 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 09:27:53,420 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 09:27:53,420 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 301 [2021-06-11 09:27:53,422 INFO L480 AbstractCegarLoop]: Abstraction has has 131 places, 137 transitions, 1611 flow [2021-06-11 09:27:53,423 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 131.91666666666666) internal successors, (1583), 12 states have internal predecessors, (1583), 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) [2021-06-11 09:27:53,423 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 09:27:53,423 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, 1, 1, 1, 1, 1, 1] [2021-06-11 09:27:53,423 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-06-11 09:27:53,423 INFO L428 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-11 09:27:53,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 09:27:53,424 INFO L82 PathProgramCache]: Analyzing trace with hash -277337024, now seen corresponding path program 5 times [2021-06-11 09:27:53,424 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 09:27:53,424 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10742558] [2021-06-11 09:27:53,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 09:27:53,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 09:27:53,473 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 09:27:53,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 09:27:53,474 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 09:27:53,475 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 09:27:53,479 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 09:27:53,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 09:27:53,488 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 09:27:53,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 09:27:53,500 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-06-11 09:27:53,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-11 09:27:53,518 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-06-11 09:27:53,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-06-11 09:27:53,541 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-06-11 09:27:53,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-06-11 09:27:53,572 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-06-11 09:27:53,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-06-11 09:27:53,612 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-06-11 09:27:53,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-06-11 09:27:53,654 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-06-11 09:27:53,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-06-11 09:27:53,717 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-06-11 09:27:53,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-06-11 09:27:53,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 09:27:53,757 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [10742558] [2021-06-11 09:27:53,757 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 09:27:53,757 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-06-11 09:27:53,757 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164690238] [2021-06-11 09:27:53,758 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-06-11 09:27:53,758 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 09:27:53,758 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-06-11 09:27:53,758 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-06-11 09:27:53,759 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 153 [2021-06-11 09:27:53,760 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 137 transitions, 1611 flow. Second operand has 12 states, 12 states have (on average 131.91666666666666) internal successors, (1583), 12 states have internal predecessors, (1583), 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) [2021-06-11 09:27:53,761 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 09:27:53,761 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 153 [2021-06-11 09:27:53,761 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 09:27:58,644 INFO L129 PetriNetUnfolder]: 18649/35955 cut-off events. [2021-06-11 09:27:58,644 INFO L130 PetriNetUnfolder]: For 286452/289473 co-relation queries the response was YES. [2021-06-11 09:27:59,052 INFO L84 FinitePrefix]: Finished finitePrefix Result has 171957 conditions, 35955 events. 18649/35955 cut-off events. For 286452/289473 co-relation queries the response was YES. Maximal size of possible extension queue 3379. Compared 379596 event pairs, 4803 based on Foata normal form. 1/35424 useless extension candidates. Maximal degree in co-relation 171907. Up to 10541 conditions per place. [2021-06-11 09:27:59,234 INFO L132 encePairwiseOnDemand]: 142/153 looper letters, 225 selfloop transitions, 69 changer transitions 0/316 dead transitions. [2021-06-11 09:27:59,234 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 316 transitions, 4420 flow [2021-06-11 09:27:59,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-11 09:27:59,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-06-11 09:27:59,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1637 transitions. [2021-06-11 09:27:59,239 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8916122004357299 [2021-06-11 09:27:59,239 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1637 transitions. [2021-06-11 09:27:59,240 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1637 transitions. [2021-06-11 09:27:59,240 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 09:27:59,241 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1637 transitions. [2021-06-11 09:27:59,244 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 136.41666666666666) internal successors, (1637), 12 states have internal predecessors, (1637), 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) [2021-06-11 09:27:59,247 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 153.0) internal successors, (1989), 13 states have internal predecessors, (1989), 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) [2021-06-11 09:27:59,247 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 153.0) internal successors, (1989), 13 states have internal predecessors, (1989), 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) [2021-06-11 09:27:59,247 INFO L185 Difference]: Start difference. First operand has 131 places, 137 transitions, 1611 flow. Second operand 12 states and 1637 transitions. [2021-06-11 09:27:59,247 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 316 transitions, 4420 flow [2021-06-11 09:27:59,830 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 316 transitions, 4394 flow, removed 5 selfloop flow, removed 1 redundant places. [2021-06-11 09:27:59,834 INFO L241 Difference]: Finished difference. Result has 151 places, 181 transitions, 2506 flow [2021-06-11 09:27:59,834 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=153, PETRI_DIFFERENCE_MINUEND_FLOW=1596, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=2506, PETRI_PLACES=151, PETRI_TRANSITIONS=181} [2021-06-11 09:27:59,835 INFO L343 CegarLoopForPetriNet]: 62 programPoint places, 89 predicate places. [2021-06-11 09:27:59,835 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 09:27:59,835 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 151 places, 181 transitions, 2506 flow [2021-06-11 09:27:59,835 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 151 places, 181 transitions, 2506 flow [2021-06-11 09:27:59,836 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 151 places, 181 transitions, 2506 flow [2021-06-11 09:28:00,354 INFO L129 PetriNetUnfolder]: 144/3901 cut-off events. [2021-06-11 09:28:00,354 INFO L130 PetriNetUnfolder]: For 13849/14325 co-relation queries the response was YES. [2021-06-11 09:28:00,388 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10174 conditions, 3901 events. 144/3901 cut-off events. For 13849/14325 co-relation queries the response was YES. Maximal size of possible extension queue 349. Compared 58194 event pairs, 0 based on Foata normal form. 12/3487 useless extension candidates. Maximal degree in co-relation 10115. Up to 334 conditions per place. [2021-06-11 09:28:00,434 INFO L151 LiptonReduction]: Number of co-enabled transitions 2546 [2021-06-11 09:28:00,447 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 09:28:00,447 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 09:28:00,447 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 612 [2021-06-11 09:28:00,448 INFO L480 AbstractCegarLoop]: Abstraction has has 151 places, 181 transitions, 2506 flow [2021-06-11 09:28:00,449 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 131.91666666666666) internal successors, (1583), 12 states have internal predecessors, (1583), 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) [2021-06-11 09:28:00,449 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 09:28:00,449 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, 1, 1, 1, 1, 1, 1] [2021-06-11 09:28:00,449 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-06-11 09:28:00,449 INFO L428 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-11 09:28:00,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 09:28:00,450 INFO L82 PathProgramCache]: Analyzing trace with hash -192685538, now seen corresponding path program 6 times [2021-06-11 09:28:00,450 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 09:28:00,450 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174813618] [2021-06-11 09:28:00,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 09:28:00,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 09:28:00,524 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 09:28:00,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 09:28:00,526 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 09:28:00,526 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 09:28:00,532 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 09:28:00,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 09:28:00,540 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 09:28:00,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 09:28:00,553 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-06-11 09:28:00,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-11 09:28:00,570 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-06-11 09:28:00,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-06-11 09:28:00,594 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-06-11 09:28:00,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-06-11 09:28:00,629 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-06-11 09:28:00,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-06-11 09:28:00,670 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-06-11 09:28:00,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-06-11 09:28:00,720 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-06-11 09:28:00,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-06-11 09:28:00,780 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-06-11 09:28:00,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-06-11 09:28:00,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 09:28:00,822 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174813618] [2021-06-11 09:28:00,823 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 09:28:00,823 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-06-11 09:28:00,823 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140168278] [2021-06-11 09:28:00,823 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-06-11 09:28:00,823 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 09:28:00,823 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-06-11 09:28:00,824 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-06-11 09:28:00,825 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 153 [2021-06-11 09:28:00,826 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 151 places, 181 transitions, 2506 flow. Second operand has 12 states, 12 states have (on average 131.91666666666666) internal successors, (1583), 12 states have internal predecessors, (1583), 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) [2021-06-11 09:28:00,826 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 09:28:00,826 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 153 [2021-06-11 09:28:00,826 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 09:28:08,689 INFO L129 PetriNetUnfolder]: 24049/48586 cut-off events. [2021-06-11 09:28:08,689 INFO L130 PetriNetUnfolder]: For 547455/554333 co-relation queries the response was YES. [2021-06-11 09:28:09,353 INFO L84 FinitePrefix]: Finished finitePrefix Result has 260790 conditions, 48586 events. 24049/48586 cut-off events. For 547455/554333 co-relation queries the response was YES. Maximal size of possible extension queue 4572. Compared 558582 event pairs, 7450 based on Foata normal form. 1/47711 useless extension candidates. Maximal degree in co-relation 260730. Up to 13995 conditions per place. [2021-06-11 09:28:09,595 INFO L132 encePairwiseOnDemand]: 142/153 looper letters, 236 selfloop transitions, 94 changer transitions 0/352 dead transitions. [2021-06-11 09:28:09,596 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 162 places, 352 transitions, 5566 flow [2021-06-11 09:28:09,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-11 09:28:09,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-06-11 09:28:09,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1637 transitions. [2021-06-11 09:28:09,599 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8916122004357299 [2021-06-11 09:28:09,599 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1637 transitions. [2021-06-11 09:28:09,599 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1637 transitions. [2021-06-11 09:28:09,600 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 09:28:09,600 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1637 transitions. [2021-06-11 09:28:09,603 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 136.41666666666666) internal successors, (1637), 12 states have internal predecessors, (1637), 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) [2021-06-11 09:28:09,606 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 153.0) internal successors, (1989), 13 states have internal predecessors, (1989), 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) [2021-06-11 09:28:09,606 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 153.0) internal successors, (1989), 13 states have internal predecessors, (1989), 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) [2021-06-11 09:28:09,606 INFO L185 Difference]: Start difference. First operand has 151 places, 181 transitions, 2506 flow. Second operand 12 states and 1637 transitions. [2021-06-11 09:28:09,606 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 162 places, 352 transitions, 5566 flow [2021-06-11 09:28:11,096 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 161 places, 352 transitions, 5392 flow, removed 71 selfloop flow, removed 1 redundant places. [2021-06-11 09:28:11,100 INFO L241 Difference]: Finished difference. Result has 171 places, 230 transitions, 3548 flow [2021-06-11 09:28:11,100 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=153, PETRI_DIFFERENCE_MINUEND_FLOW=2404, PETRI_DIFFERENCE_MINUEND_PLACES=150, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=181, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=45, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=3548, PETRI_PLACES=171, PETRI_TRANSITIONS=230} [2021-06-11 09:28:11,100 INFO L343 CegarLoopForPetriNet]: 62 programPoint places, 109 predicate places. [2021-06-11 09:28:11,100 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 09:28:11,100 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 171 places, 230 transitions, 3548 flow [2021-06-11 09:28:11,100 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 171 places, 230 transitions, 3548 flow [2021-06-11 09:28:11,102 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 171 places, 230 transitions, 3548 flow [2021-06-11 09:28:11,842 INFO L129 PetriNetUnfolder]: 204/5460 cut-off events. [2021-06-11 09:28:11,842 INFO L130 PetriNetUnfolder]: For 25023/25759 co-relation queries the response was YES. [2021-06-11 09:28:11,888 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15322 conditions, 5460 events. 204/5460 cut-off events. For 25023/25759 co-relation queries the response was YES. Maximal size of possible extension queue 487. Compared 86333 event pairs, 0 based on Foata normal form. 12/4915 useless extension candidates. Maximal degree in co-relation 15253. Up to 471 conditions per place. [2021-06-11 09:28:11,959 INFO L151 LiptonReduction]: Number of co-enabled transitions 3212 [2021-06-11 09:28:11,978 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 09:28:11,978 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 09:28:11,979 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 879 [2021-06-11 09:28:11,979 INFO L480 AbstractCegarLoop]: Abstraction has has 171 places, 230 transitions, 3548 flow [2021-06-11 09:28:11,979 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 131.91666666666666) internal successors, (1583), 12 states have internal predecessors, (1583), 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) [2021-06-11 09:28:11,980 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 09:28:11,980 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, 1, 1, 1, 1, 1, 1] [2021-06-11 09:28:11,980 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-06-11 09:28:11,980 INFO L428 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-11 09:28:11,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 09:28:11,980 INFO L82 PathProgramCache]: Analyzing trace with hash 1030058894, now seen corresponding path program 7 times [2021-06-11 09:28:11,980 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 09:28:11,980 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825593911] [2021-06-11 09:28:11,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 09:28:11,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 09:28:12,009 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 09:28:12,009 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 09:28:12,010 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 09:28:12,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 09:28:12,015 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 09:28:12,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 09:28:12,024 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 09:28:12,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 09:28:12,038 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-06-11 09:28:12,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-11 09:28:12,057 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-06-11 09:28:12,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-06-11 09:28:12,082 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-06-11 09:28:12,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-06-11 09:28:12,112 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-06-11 09:28:12,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-06-11 09:28:12,202 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-06-11 09:28:12,214 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-06-11 09:28:12,282 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-06-11 09:28:12,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-06-11 09:28:12,334 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-06-11 09:28:12,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-06-11 09:28:12,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 09:28:12,375 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825593911] [2021-06-11 09:28:12,375 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 09:28:12,375 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-06-11 09:28:12,375 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710528084] [2021-06-11 09:28:12,375 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-06-11 09:28:12,375 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 09:28:12,376 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-06-11 09:28:12,376 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-06-11 09:28:12,377 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 153 [2021-06-11 09:28:12,378 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 171 places, 230 transitions, 3548 flow. Second operand has 12 states, 12 states have (on average 131.91666666666666) internal successors, (1583), 12 states have internal predecessors, (1583), 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) [2021-06-11 09:28:12,378 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 09:28:12,378 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 153 [2021-06-11 09:28:12,378 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 09:28:26,239 INFO L129 PetriNetUnfolder]: 32623/69447 cut-off events. [2021-06-11 09:28:26,239 INFO L130 PetriNetUnfolder]: For 1024256/1037782 co-relation queries the response was YES. [2021-06-11 09:28:27,416 INFO L84 FinitePrefix]: Finished finitePrefix Result has 405011 conditions, 69447 events. 32623/69447 cut-off events. For 1024256/1037782 co-relation queries the response was YES. Maximal size of possible extension queue 7000. Compared 868704 event pairs, 16526 based on Foata normal form. 1/68369 useless extension candidates. Maximal degree in co-relation 404941. Up to 20004 conditions per place. [2021-06-11 09:28:27,839 INFO L132 encePairwiseOnDemand]: 142/153 looper letters, 332 selfloop transitions, 122 changer transitions 0/476 dead transitions. [2021-06-11 09:28:27,839 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 182 places, 476 transitions, 8553 flow [2021-06-11 09:28:27,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-11 09:28:27,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-06-11 09:28:27,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1637 transitions. [2021-06-11 09:28:27,845 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8916122004357299 [2021-06-11 09:28:27,845 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1637 transitions. [2021-06-11 09:28:27,845 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1637 transitions. [2021-06-11 09:28:27,846 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 09:28:27,846 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1637 transitions. [2021-06-11 09:28:27,849 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 136.41666666666666) internal successors, (1637), 12 states have internal predecessors, (1637), 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) [2021-06-11 09:28:27,852 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 153.0) internal successors, (1989), 13 states have internal predecessors, (1989), 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) [2021-06-11 09:28:27,852 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 153.0) internal successors, (1989), 13 states have internal predecessors, (1989), 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) [2021-06-11 09:28:27,852 INFO L185 Difference]: Start difference. First operand has 171 places, 230 transitions, 3548 flow. Second operand 12 states and 1637 transitions. [2021-06-11 09:28:27,852 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 182 places, 476 transitions, 8553 flow [2021-06-11 09:28:31,941 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 181 places, 476 transitions, 8350 flow, removed 82 selfloop flow, removed 1 redundant places. [2021-06-11 09:28:31,967 INFO L241 Difference]: Finished difference. Result has 191 places, 320 transitions, 5656 flow [2021-06-11 09:28:31,967 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=153, PETRI_DIFFERENCE_MINUEND_FLOW=3432, PETRI_DIFFERENCE_MINUEND_PLACES=170, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=230, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=108, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=5656, PETRI_PLACES=191, PETRI_TRANSITIONS=320} [2021-06-11 09:28:31,967 INFO L343 CegarLoopForPetriNet]: 62 programPoint places, 129 predicate places. [2021-06-11 09:28:31,968 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 09:28:31,968 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 191 places, 320 transitions, 5656 flow [2021-06-11 09:28:31,968 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 191 places, 320 transitions, 5656 flow [2021-06-11 09:28:31,971 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 191 places, 320 transitions, 5656 flow [2021-06-11 09:28:33,942 INFO L129 PetriNetUnfolder]: 416/9715 cut-off events. [2021-06-11 09:28:33,942 INFO L130 PetriNetUnfolder]: For 60495/62418 co-relation queries the response was YES. [2021-06-11 09:28:34,035 INFO L84 FinitePrefix]: Finished finitePrefix Result has 29873 conditions, 9715 events. 416/9715 cut-off events. For 60495/62418 co-relation queries the response was YES. Maximal size of possible extension queue 928. Compared 168919 event pairs, 0 based on Foata normal form. 122/9027 useless extension candidates. Maximal degree in co-relation 29794. Up to 832 conditions per place. [2021-06-11 09:28:34,306 INFO L151 LiptonReduction]: Number of co-enabled transitions 4166 [2021-06-11 09:28:34,329 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 09:28:34,329 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 09:28:34,329 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2361 [2021-06-11 09:28:34,330 INFO L480 AbstractCegarLoop]: Abstraction has has 191 places, 320 transitions, 5656 flow [2021-06-11 09:28:34,330 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 131.91666666666666) internal successors, (1583), 12 states have internal predecessors, (1583), 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) [2021-06-11 09:28:34,330 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 09:28:34,330 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, 1, 1, 1, 1, 1, 1] [2021-06-11 09:28:34,330 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-06-11 09:28:34,330 INFO L428 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-11 09:28:34,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 09:28:34,331 INFO L82 PathProgramCache]: Analyzing trace with hash -1542497040, now seen corresponding path program 8 times [2021-06-11 09:28:34,331 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 09:28:34,331 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935522691] [2021-06-11 09:28:34,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 09:28:34,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 09:28:34,360 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 09:28:34,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 09:28:34,361 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 09:28:34,361 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 09:28:34,366 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 09:28:34,366 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 09:28:34,374 INFO L142 QuantifierPusher]: treesize reduction 18, result has 56.1 percent of original size [2021-06-11 09:28:34,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-06-11 09:28:34,388 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-06-11 09:28:34,388 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-06-11 09:28:34,406 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-06-11 09:28:34,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-06-11 09:28:34,430 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-06-11 09:28:34,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-06-11 09:28:34,459 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-06-11 09:28:34,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-06-11 09:28:34,490 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-06-11 09:28:34,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-06-11 09:28:34,529 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-06-11 09:28:34,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-06-11 09:28:34,577 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-06-11 09:28:34,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-06-11 09:28:34,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 09:28:34,626 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935522691] [2021-06-11 09:28:34,626 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 09:28:34,626 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-06-11 09:28:34,633 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490312717] [2021-06-11 09:28:34,634 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-06-11 09:28:34,634 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 09:28:34,634 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-06-11 09:28:34,634 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-06-11 09:28:34,635 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 153 [2021-06-11 09:28:34,636 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 191 places, 320 transitions, 5656 flow. Second operand has 12 states, 12 states have (on average 131.91666666666666) internal successors, (1583), 12 states have internal predecessors, (1583), 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) [2021-06-11 09:28:34,636 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 09:28:34,636 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 153 [2021-06-11 09:28:34,636 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 09:29:06,032 INFO L129 PetriNetUnfolder]: 46496/117392 cut-off events. [2021-06-11 09:29:06,032 INFO L130 PetriNetUnfolder]: For 1876882/1915504 co-relation queries the response was YES. [2021-06-11 09:29:08,579 INFO L84 FinitePrefix]: Finished finitePrefix Result has 653171 conditions, 117392 events. 46496/117392 cut-off events. For 1876882/1915504 co-relation queries the response was YES. Maximal size of possible extension queue 12713. Compared 1798544 event pairs, 14912 based on Foata normal form. 12/115339 useless extension candidates. Maximal degree in co-relation 653091. Up to 29364 conditions per place. [2021-06-11 09:29:09,184 INFO L132 encePairwiseOnDemand]: 142/153 looper letters, 371 selfloop transitions, 196 changer transitions 0/589 dead transitions. [2021-06-11 09:29:09,185 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 202 places, 589 transitions, 11905 flow [2021-06-11 09:29:09,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-11 09:29:09,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-06-11 09:29:09,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1637 transitions. [2021-06-11 09:29:09,189 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8916122004357299 [2021-06-11 09:29:09,189 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1637 transitions. [2021-06-11 09:29:09,189 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1637 transitions. [2021-06-11 09:29:09,190 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 09:29:09,190 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1637 transitions. [2021-06-11 09:29:09,193 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 136.41666666666666) internal successors, (1637), 12 states have internal predecessors, (1637), 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) [2021-06-11 09:29:09,196 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 153.0) internal successors, (1989), 13 states have internal predecessors, (1989), 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) [2021-06-11 09:29:09,196 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 153.0) internal successors, (1989), 13 states have internal predecessors, (1989), 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) [2021-06-11 09:29:09,196 INFO L185 Difference]: Start difference. First operand has 191 places, 320 transitions, 5656 flow. Second operand 12 states and 1637 transitions. [2021-06-11 09:29:09,196 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 202 places, 589 transitions, 11905 flow [2021-06-11 09:29:16,886 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 201 places, 589 transitions, 11734 flow, removed 68 selfloop flow, removed 1 redundant places. [2021-06-11 09:29:16,894 INFO L241 Difference]: Finished difference. Result has 211 places, 464 transitions, 9496 flow [2021-06-11 09:29:16,894 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=153, PETRI_DIFFERENCE_MINUEND_FLOW=5540, PETRI_DIFFERENCE_MINUEND_PLACES=190, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=320, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=52, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=9496, PETRI_PLACES=211, PETRI_TRANSITIONS=464} [2021-06-11 09:29:16,894 INFO L343 CegarLoopForPetriNet]: 62 programPoint places, 149 predicate places. [2021-06-11 09:29:16,894 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 09:29:16,894 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 211 places, 464 transitions, 9496 flow [2021-06-11 09:29:16,895 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 211 places, 464 transitions, 9496 flow [2021-06-11 09:29:16,898 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 211 places, 464 transitions, 9496 flow [2021-06-11 09:29:21,090 INFO L129 PetriNetUnfolder]: 772/17206 cut-off events. [2021-06-11 09:29:21,090 INFO L130 PetriNetUnfolder]: For 150847/153360 co-relation queries the response was YES. [2021-06-11 09:29:21,518 INFO L84 FinitePrefix]: Finished finitePrefix Result has 59165 conditions, 17206 events. 772/17206 cut-off events. For 150847/153360 co-relation queries the response was YES. Maximal size of possible extension queue 1732. Compared 325787 event pairs, 0 based on Foata normal form. 68/16101 useless extension candidates. Maximal degree in co-relation 59076. Up to 1544 conditions per place. [2021-06-11 09:29:21,697 INFO L151 LiptonReduction]: Number of co-enabled transitions 5230 [2021-06-11 09:29:21,731 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 09:29:21,731 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 09:29:21,731 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 4837 [2021-06-11 09:29:21,731 INFO L480 AbstractCegarLoop]: Abstraction has has 211 places, 464 transitions, 9496 flow [2021-06-11 09:29:21,732 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 131.91666666666666) internal successors, (1583), 12 states have internal predecessors, (1583), 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) [2021-06-11 09:29:21,732 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 09:29:21,732 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, 1, 1, 1, 1, 1, 1] [2021-06-11 09:29:21,732 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-06-11 09:29:21,732 INFO L428 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-11 09:29:21,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 09:29:21,733 INFO L82 PathProgramCache]: Analyzing trace with hash 1828638614, now seen corresponding path program 9 times [2021-06-11 09:29:21,733 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 09:29:21,733 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633147826] [2021-06-11 09:29:21,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 09:29:21,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 09:29:21,772 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 09:29:21,772 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 09:29:21,773 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 09:29:21,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 09:29:21,779 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-06-11 09:29:21,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-06-11 09:29:21,788 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-06-11 09:29:21,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 09:29:21,801 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-06-11 09:29:21,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-11 09:29:21,818 INFO L142 QuantifierPusher]: treesize reduction 18, result has 69.5 percent of original size [2021-06-11 09:29:21,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-06-11 09:29:21,855 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.5 percent of original size [2021-06-11 09:29:21,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-06-11 09:29:21,900 INFO L142 QuantifierPusher]: treesize reduction 36, result has 61.3 percent of original size [2021-06-11 09:29:21,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-06-11 09:29:21,969 INFO L142 QuantifierPusher]: treesize reduction 45, result has 59.1 percent of original size [2021-06-11 09:29:21,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-06-11 09:29:22,040 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-06-11 09:29:22,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-06-11 09:29:22,093 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-06-11 09:29:22,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-06-11 09:29:22,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 09:29:22,142 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633147826] [2021-06-11 09:29:22,142 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 09:29:22,142 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-06-11 09:29:22,142 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195847103] [2021-06-11 09:29:22,142 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-06-11 09:29:22,142 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 09:29:22,143 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-06-11 09:29:22,143 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-06-11 09:29:22,144 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 153 [2021-06-11 09:29:22,145 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 211 places, 464 transitions, 9496 flow. Second operand has 12 states, 12 states have (on average 131.91666666666666) internal successors, (1583), 12 states have internal predecessors, (1583), 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) [2021-06-11 09:29:22,145 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 09:29:22,145 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 153 [2021-06-11 09:29:22,145 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 09:30:05,468 INFO L129 PetriNetUnfolder]: 50796/124109 cut-off events. [2021-06-11 09:30:05,469 INFO L130 PetriNetUnfolder]: For 2577699/2678527 co-relation queries the response was YES. [2021-06-11 09:30:08,824 INFO L84 FinitePrefix]: Finished finitePrefix Result has 774305 conditions, 124109 events. 50796/124109 cut-off events. For 2577699/2678527 co-relation queries the response was YES. Maximal size of possible extension queue 13413. Compared 1873139 event pairs, 15999 based on Foata normal form. 13/122205 useless extension candidates. Maximal degree in co-relation 774215. Up to 35579 conditions per place. [2021-06-11 09:30:09,545 INFO L132 encePairwiseOnDemand]: 142/153 looper letters, 396 selfloop transitions, 281 changer transitions 0/699 dead transitions. [2021-06-11 09:30:09,545 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 222 places, 699 transitions, 16179 flow [2021-06-11 09:30:09,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-11 09:30:09,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-06-11 09:30:09,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1637 transitions. [2021-06-11 09:30:09,548 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8916122004357299 [2021-06-11 09:30:09,548 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1637 transitions. [2021-06-11 09:30:09,548 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1637 transitions. [2021-06-11 09:30:09,548 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 09:30:09,548 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1637 transitions. [2021-06-11 09:30:09,550 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 136.41666666666666) internal successors, (1637), 12 states have internal predecessors, (1637), 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) [2021-06-11 09:30:09,551 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 153.0) internal successors, (1989), 13 states have internal predecessors, (1989), 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) [2021-06-11 09:30:09,552 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 153.0) internal successors, (1989), 13 states have internal predecessors, (1989), 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) [2021-06-11 09:30:09,552 INFO L185 Difference]: Start difference. First operand has 211 places, 464 transitions, 9496 flow. Second operand 12 states and 1637 transitions. [2021-06-11 09:30:09,552 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 222 places, 699 transitions, 16179 flow [2021-06-11 09:30:32,649 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 221 places, 699 transitions, 16012 flow, removed 53 selfloop flow, removed 1 redundant places. [2021-06-11 09:30:32,661 INFO L241 Difference]: Finished difference. Result has 231 places, 641 transitions, 15002 flow [2021-06-11 09:30:32,662 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=153, PETRI_DIFFERENCE_MINUEND_FLOW=9338, PETRI_DIFFERENCE_MINUEND_PLACES=210, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=464, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=104, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=183, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=15002, PETRI_PLACES=231, PETRI_TRANSITIONS=641} [2021-06-11 09:30:32,662 INFO L343 CegarLoopForPetriNet]: 62 programPoint places, 169 predicate places. [2021-06-11 09:30:32,662 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 09:30:32,662 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 231 places, 641 transitions, 15002 flow [2021-06-11 09:30:32,662 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 231 places, 641 transitions, 15002 flow [2021-06-11 09:30:32,669 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 231 places, 641 transitions, 15002 flow [2021-06-11 09:30:38,456 INFO L129 PetriNetUnfolder]: 784/18718 cut-off events. [2021-06-11 09:30:38,456 INFO L130 PetriNetUnfolder]: For 212977/218675 co-relation queries the response was YES. [2021-06-11 09:30:38,643 INFO L84 FinitePrefix]: Finished finitePrefix Result has 68824 conditions, 18718 events. 784/18718 cut-off events. For 212977/218675 co-relation queries the response was YES. Maximal size of possible extension queue 1826. Compared 360016 event pairs, 0 based on Foata normal form. 22/17527 useless extension candidates. Maximal degree in co-relation 68725. Up to 1568 conditions per place. [2021-06-11 09:30:38,873 INFO L151 LiptonReduction]: Number of co-enabled transitions 6252 [2021-06-11 09:30:38,928 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 09:30:38,929 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 09:30:38,929 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 6267 [2021-06-11 09:30:38,929 INFO L480 AbstractCegarLoop]: Abstraction has has 231 places, 641 transitions, 15002 flow [2021-06-11 09:30:38,930 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 131.91666666666666) internal successors, (1583), 12 states have internal predecessors, (1583), 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) [2021-06-11 09:30:38,930 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 09:30:38,930 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, 1, 1, 1, 1, 1, 1] [2021-06-11 09:30:38,930 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-06-11 09:30:38,930 INFO L428 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-11 09:30:38,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 09:30:38,930 INFO L82 PathProgramCache]: Analyzing trace with hash 1753095926, now seen corresponding path program 1 times [2021-06-11 09:30:38,930 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 09:30:38,931 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022694272] [2021-06-11 09:30:38,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 09:30:38,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 09:30:38,937 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 09:30:38,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 09:30:38,938 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 09:30:38,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-06-11 09:30:38,941 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 09:30:38,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 09:30:38,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 09:30:38,942 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022694272] [2021-06-11 09:30:38,942 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 09:30:38,942 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-11 09:30:38,942 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010356680] [2021-06-11 09:30:38,942 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-11 09:30:38,942 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 09:30:38,942 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-11 09:30:38,943 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-11 09:30:38,943 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 153 [2021-06-11 09:30:38,943 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 231 places, 641 transitions, 15002 flow. Second operand has 3 states, 3 states have (on average 142.66666666666666) internal successors, (428), 3 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) [2021-06-11 09:30:38,943 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 09:30:38,943 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 153 [2021-06-11 09:30:38,944 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 09:30:45,327 INFO L129 PetriNetUnfolder]: 0/17373 cut-off events. [2021-06-11 09:30:45,328 INFO L130 PetriNetUnfolder]: For 217689/227657 co-relation queries the response was YES. [2021-06-11 09:30:45,328 INFO L84 FinitePrefix]: Finished finitePrefix Result has 68265 conditions, 17373 events. 0/17373 cut-off events. For 217689/227657 co-relation queries the response was YES. Maximal size of possible extension queue 1560. Compared 344209 event pairs, 0 based on Foata normal form. 562/16615 useless extension candidates. Maximal degree in co-relation 0. Up to 1516 conditions per place. [2021-06-11 09:30:45,357 INFO L132 encePairwiseOnDemand]: 151/153 looper letters, 1 selfloop transitions, 1 changer transitions 10/639 dead transitions. [2021-06-11 09:30:45,357 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 233 places, 639 transitions, 15000 flow [2021-06-11 09:30:45,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-11 09:30:45,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-06-11 09:30:45,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 429 transitions. [2021-06-11 09:30:45,358 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.934640522875817 [2021-06-11 09:30:45,358 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 429 transitions. [2021-06-11 09:30:45,358 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 429 transitions. [2021-06-11 09:30:45,359 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 09:30:45,359 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 429 transitions. [2021-06-11 09:30:45,359 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 143.0) internal successors, (429), 3 states have internal predecessors, (429), 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) [2021-06-11 09:30:45,360 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 153.0) internal successors, (612), 4 states have internal predecessors, (612), 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) [2021-06-11 09:30:45,360 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 153.0) internal successors, (612), 4 states have internal predecessors, (612), 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) [2021-06-11 09:30:45,360 INFO L185 Difference]: Start difference. First operand has 231 places, 641 transitions, 15002 flow. Second operand 3 states and 429 transitions. [2021-06-11 09:30:45,360 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 233 places, 639 transitions, 15000 flow [2021-06-11 09:30:47,919 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 232 places, 639 transitions, 14760 flow, removed 68 selfloop flow, removed 1 redundant places. [2021-06-11 09:30:47,930 INFO L241 Difference]: Finished difference. Result has 232 places, 629 transitions, 14668 flow [2021-06-11 09:30:47,930 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=153, PETRI_DIFFERENCE_MINUEND_FLOW=14756, PETRI_DIFFERENCE_MINUEND_PLACES=230, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=639, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=638, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=14668, PETRI_PLACES=232, PETRI_TRANSITIONS=629} [2021-06-11 09:30:47,930 INFO L343 CegarLoopForPetriNet]: 62 programPoint places, 170 predicate places. [2021-06-11 09:30:47,930 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 09:30:47,931 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 232 places, 629 transitions, 14668 flow [2021-06-11 09:30:47,931 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 232 places, 629 transitions, 14668 flow [2021-06-11 09:30:47,936 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 223 places, 629 transitions, 14668 flow [2021-06-11 09:30:53,413 INFO L129 PetriNetUnfolder]: 0/17331 cut-off events. [2021-06-11 09:30:53,413 INFO L130 PetriNetUnfolder]: For 199972/205594 co-relation queries the response was YES. [2021-06-11 09:30:53,414 INFO L84 FinitePrefix]: Finished finitePrefix Result has 66057 conditions, 17331 events. 0/17331 cut-off events. For 199972/205594 co-relation queries the response was YES. Maximal size of possible extension queue 1579. Compared 344348 event pairs, 0 based on Foata normal form. 19/16168 useless extension candidates. Maximal degree in co-relation 0. Up to 1509 conditions per place. [2021-06-11 09:30:53,605 INFO L151 LiptonReduction]: Number of co-enabled transitions 5028 [2021-06-11 09:30:53,654 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 09:30:53,654 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 09:30:53,654 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 5724 [2021-06-11 09:30:53,655 INFO L480 AbstractCegarLoop]: Abstraction has has 223 places, 629 transitions, 14668 flow [2021-06-11 09:30:53,655 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 142.66666666666666) internal successors, (428), 3 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) [2021-06-11 09:30:53,655 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 09:30:53,655 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, 1, 1, 1, 1, 1, 1] [2021-06-11 09:30:53,656 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-06-11 09:30:53,656 INFO L428 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-11 09:30:53,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 09:30:53,656 INFO L82 PathProgramCache]: Analyzing trace with hash -1412473266, now seen corresponding path program 10 times [2021-06-11 09:30:53,656 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 09:30:53,656 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443916966] [2021-06-11 09:30:53,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 09:30:53,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 09:30:53,679 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 09:30:53,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 09:30:53,680 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 09:30:53,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 09:30:53,692 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 09:30:53,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 09:30:53,700 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 09:30:53,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 09:30:53,712 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-06-11 09:30:53,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-11 09:30:53,728 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-06-11 09:30:53,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-06-11 09:30:53,751 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-06-11 09:30:53,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-06-11 09:30:53,780 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-06-11 09:30:53,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-06-11 09:30:53,817 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-06-11 09:30:53,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-06-11 09:30:53,874 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-06-11 09:30:53,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-06-11 09:30:53,921 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-06-11 09:30:53,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-06-11 09:30:53,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 09:30:53,975 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443916966] [2021-06-11 09:30:53,975 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 09:30:53,975 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-06-11 09:30:53,975 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087402004] [2021-06-11 09:30:53,976 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-06-11 09:30:53,976 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 09:30:53,978 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-06-11 09:30:53,978 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-06-11 09:30:53,979 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 153 [2021-06-11 09:30:53,980 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 223 places, 629 transitions, 14668 flow. Second operand has 12 states, 12 states have (on average 131.91666666666666) internal successors, (1583), 12 states have internal predecessors, (1583), 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) [2021-06-11 09:30:53,980 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 09:30:53,980 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 153 [2021-06-11 09:30:53,980 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 09:31:43,388 INFO L129 PetriNetUnfolder]: 48319/116405 cut-off events. [2021-06-11 09:31:43,388 INFO L130 PetriNetUnfolder]: For 3432735/3563929 co-relation queries the response was YES. [2021-06-11 09:31:46,293 INFO L84 FinitePrefix]: Finished finitePrefix Result has 911471 conditions, 116405 events. 48319/116405 cut-off events. For 3432735/3563929 co-relation queries the response was YES. Maximal size of possible extension queue 11691. Compared 1707441 event pairs, 21030 based on Foata normal form. 23/114365 useless extension candidates. Maximal degree in co-relation 911373. Up to 40765 conditions per place. [2021-06-11 09:31:46,959 INFO L132 encePairwiseOnDemand]: 142/153 looper letters, 528 selfloop transitions, 389 changer transitions 1/938 dead transitions. [2021-06-11 09:31:46,960 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 234 places, 938 transitions, 22046 flow [2021-06-11 09:31:46,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-11 09:31:46,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-06-11 09:31:46,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1637 transitions. [2021-06-11 09:31:46,962 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8916122004357299 [2021-06-11 09:31:46,962 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1637 transitions. [2021-06-11 09:31:46,962 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1637 transitions. [2021-06-11 09:31:46,963 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 09:31:46,963 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1637 transitions. [2021-06-11 09:31:46,964 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 136.41666666666666) internal successors, (1637), 12 states have internal predecessors, (1637), 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) [2021-06-11 09:31:46,966 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 153.0) internal successors, (1989), 13 states have internal predecessors, (1989), 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) [2021-06-11 09:31:46,966 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 153.0) internal successors, (1989), 13 states have internal predecessors, (1989), 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) [2021-06-11 09:31:46,966 INFO L185 Difference]: Start difference. First operand has 223 places, 629 transitions, 14668 flow. Second operand 12 states and 1637 transitions. [2021-06-11 09:31:46,966 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 234 places, 938 transitions, 22046 flow [2021-06-11 09:32:19,268 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 223 places, 938 transitions, 21866 flow, removed 89 selfloop flow, removed 11 redundant places. [2021-06-11 09:32:19,285 INFO L241 Difference]: Finished difference. Result has 233 places, 690 transitions, 17128 flow [2021-06-11 09:32:19,285 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=153, PETRI_DIFFERENCE_MINUEND_FLOW=14646, PETRI_DIFFERENCE_MINUEND_PLACES=212, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=629, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=328, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=240, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=17128, PETRI_PLACES=233, PETRI_TRANSITIONS=690} [2021-06-11 09:32:19,285 INFO L343 CegarLoopForPetriNet]: 62 programPoint places, 171 predicate places. [2021-06-11 09:32:19,286 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 09:32:19,286 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 233 places, 690 transitions, 17128 flow [2021-06-11 09:32:19,286 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 233 places, 690 transitions, 17128 flow [2021-06-11 09:32:19,294 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 232 places, 690 transitions, 17128 flow [2021-06-11 09:32:28,221 INFO L129 PetriNetUnfolder]: 0/23151 cut-off events. [2021-06-11 09:32:28,221 INFO L130 PetriNetUnfolder]: For 247462/255788 co-relation queries the response was YES. [2021-06-11 09:32:28,221 INFO L84 FinitePrefix]: Finished finitePrefix Result has 75340 conditions, 23151 events. 0/23151 cut-off events. For 247462/255788 co-relation queries the response was YES. Maximal size of possible extension queue 2120. Compared 478445 event pairs, 0 based on Foata normal form. 85/21470 useless extension candidates. Maximal degree in co-relation 0. Up to 2111 conditions per place. [2021-06-11 09:32:28,506 INFO L151 LiptonReduction]: Number of co-enabled transitions 5772 [2021-06-11 09:32:28,569 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 09:32:28,569 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 09:32:28,569 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 9283 [2021-06-11 09:32:28,570 INFO L480 AbstractCegarLoop]: Abstraction has has 232 places, 690 transitions, 17128 flow [2021-06-11 09:32:28,570 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 131.91666666666666) internal successors, (1583), 12 states have internal predecessors, (1583), 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) [2021-06-11 09:32:28,570 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 09:32:28,570 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, 1, 1, 1, 1, 1, 1] [2021-06-11 09:32:28,570 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-06-11 09:32:28,571 INFO L428 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-11 09:32:28,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 09:32:28,571 INFO L82 PathProgramCache]: Analyzing trace with hash -1274311896, now seen corresponding path program 11 times [2021-06-11 09:32:28,571 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 09:32:28,571 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776287092] [2021-06-11 09:32:28,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 09:32:28,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 09:32:28,601 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 09:32:28,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 09:32:28,602 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 09:32:28,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 09:32:28,606 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 09:32:28,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 09:32:28,615 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-06-11 09:32:28,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 09:32:28,628 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-06-11 09:32:28,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-06-11 09:32:28,646 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-06-11 09:32:28,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-06-11 09:32:28,670 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-06-11 09:32:28,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-06-11 09:32:28,695 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-06-11 09:32:28,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-06-11 09:32:28,725 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-06-11 09:32:28,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-06-11 09:32:28,761 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-06-11 09:32:28,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-06-11 09:32:28,827 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-06-11 09:32:28,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-06-11 09:32:28,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 09:32:28,871 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776287092] [2021-06-11 09:32:28,871 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 09:32:28,871 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-06-11 09:32:28,871 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467573596] [2021-06-11 09:32:28,871 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-06-11 09:32:28,871 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 09:32:28,871 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-06-11 09:32:28,872 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-06-11 09:32:28,873 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 153 [2021-06-11 09:32:28,874 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 232 places, 690 transitions, 17128 flow. Second operand has 12 states, 12 states have (on average 131.91666666666666) internal successors, (1583), 12 states have internal predecessors, (1583), 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) [2021-06-11 09:32:28,874 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 09:32:28,874 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 153 [2021-06-11 09:32:28,874 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 09:33:28,131 INFO L129 PetriNetUnfolder]: 50030/128572 cut-off events. [2021-06-11 09:33:28,131 INFO L130 PetriNetUnfolder]: For 4150888/4282403 co-relation queries the response was YES. [2021-06-11 09:33:31,065 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1008886 conditions, 128572 events. 50030/128572 cut-off events. For 4150888/4282403 co-relation queries the response was YES. Maximal size of possible extension queue 12890. Compared 1973305 event pairs, 22371 based on Foata normal form. 25/126745 useless extension candidates. Maximal degree in co-relation 1008788. Up to 41680 conditions per place. [2021-06-11 09:33:31,815 INFO L132 encePairwiseOnDemand]: 142/153 looper letters, 285 selfloop transitions, 547 changer transitions 2/854 dead transitions. [2021-06-11 09:33:31,815 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 243 places, 854 transitions, 22040 flow [2021-06-11 09:33:31,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-11 09:33:31,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-06-11 09:33:31,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1637 transitions. [2021-06-11 09:33:31,817 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8916122004357299 [2021-06-11 09:33:31,817 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1637 transitions. [2021-06-11 09:33:31,817 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1637 transitions. [2021-06-11 09:33:31,817 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 09:33:31,817 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1637 transitions. [2021-06-11 09:33:31,818 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 136.41666666666666) internal successors, (1637), 12 states have internal predecessors, (1637), 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) [2021-06-11 09:33:31,820 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 153.0) internal successors, (1989), 13 states have internal predecessors, (1989), 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) [2021-06-11 09:33:31,820 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 153.0) internal successors, (1989), 13 states have internal predecessors, (1989), 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) [2021-06-11 09:33:31,820 INFO L185 Difference]: Start difference. First operand has 232 places, 690 transitions, 17128 flow. Second operand 12 states and 1637 transitions. [2021-06-11 09:33:31,820 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 243 places, 854 transitions, 22040 flow [2021-06-11 09:34:10,935 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 241 places, 854 transitions, 21164 flow, removed 278 selfloop flow, removed 2 redundant places. [2021-06-11 09:34:10,954 INFO L241 Difference]: Finished difference. Result has 251 places, 745 transitions, 19544 flow [2021-06-11 09:34:10,955 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=153, PETRI_DIFFERENCE_MINUEND_FLOW=16516, PETRI_DIFFERENCE_MINUEND_PLACES=230, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=690, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=492, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=143, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=19544, PETRI_PLACES=251, PETRI_TRANSITIONS=745} [2021-06-11 09:34:10,955 INFO L343 CegarLoopForPetriNet]: 62 programPoint places, 189 predicate places. [2021-06-11 09:34:10,955 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 09:34:10,956 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 251 places, 745 transitions, 19544 flow [2021-06-11 09:34:10,956 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 251 places, 745 transitions, 19544 flow [2021-06-11 09:34:10,964 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 250 places, 745 transitions, 19544 flow [2021-06-11 09:34:20,890 INFO L129 PetriNetUnfolder]: 0/24556 cut-off events. [2021-06-11 09:34:20,890 INFO L130 PetriNetUnfolder]: For 287676/300941 co-relation queries the response was YES. [2021-06-11 09:34:20,890 INFO L84 FinitePrefix]: Finished finitePrefix Result has 82861 conditions, 24556 events. 0/24556 cut-off events. For 287676/300941 co-relation queries the response was YES. Maximal size of possible extension queue 2267. Compared 512625 event pairs, 0 based on Foata normal form. 57/22674 useless extension candidates. Maximal degree in co-relation 0. Up to 2266 conditions per place. [2021-06-11 09:34:21,202 INFO L151 LiptonReduction]: Number of co-enabled transitions 6438 [2021-06-11 09:34:21,272 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 09:34:21,272 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 09:34:21,272 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 10317 [2021-06-11 09:34:21,272 INFO L480 AbstractCegarLoop]: Abstraction has has 250 places, 745 transitions, 19544 flow [2021-06-11 09:34:21,273 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 131.91666666666666) internal successors, (1583), 12 states have internal predecessors, (1583), 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) [2021-06-11 09:34:21,273 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 09:34:21,273 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, 1, 1, 1, 1, 1, 1] [2021-06-11 09:34:21,273 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-06-11 09:34:21,273 INFO L428 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-11 09:34:21,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 09:34:21,273 INFO L82 PathProgramCache]: Analyzing trace with hash 1855664006, now seen corresponding path program 12 times [2021-06-11 09:34:21,273 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 09:34:21,273 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210193478] [2021-06-11 09:34:21,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 09:34:21,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 09:34:21,300 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 09:34:21,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 09:34:21,301 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 09:34:21,301 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 09:34:21,305 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 09:34:21,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 09:34:21,313 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-06-11 09:34:21,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-06-11 09:34:21,325 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-06-11 09:34:21,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-06-11 09:34:21,350 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-06-11 09:34:21,351 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-06-11 09:34:21,375 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-06-11 09:34:21,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-06-11 09:34:21,401 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-06-11 09:34:21,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-06-11 09:34:21,431 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-06-11 09:34:21,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-06-11 09:34:21,474 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-06-11 09:34:21,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-06-11 09:34:21,516 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-06-11 09:34:21,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-06-11 09:34:21,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 09:34:21,554 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [210193478] [2021-06-11 09:34:21,554 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 09:34:21,554 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-06-11 09:34:21,554 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808244892] [2021-06-11 09:34:21,554 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-06-11 09:34:21,554 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 09:34:21,554 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-06-11 09:34:21,555 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-06-11 09:34:21,555 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 153 [2021-06-11 09:34:21,556 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 250 places, 745 transitions, 19544 flow. Second operand has 12 states, 12 states have (on average 131.91666666666666) internal successors, (1583), 12 states have internal predecessors, (1583), 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) [2021-06-11 09:34:21,556 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 09:34:21,556 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 153 [2021-06-11 09:34:21,556 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 09:34:49,287 WARN L205 SmtUtils]: Spent 381.00 ms on a formula simplification that was a NOOP. DAG size: 41 [2021-06-11 09:35:35,438 INFO L129 PetriNetUnfolder]: 54635/147389 cut-off events. [2021-06-11 09:35:35,438 INFO L130 PetriNetUnfolder]: For 5584120/5769330 co-relation queries the response was YES. [2021-06-11 09:35:38,607 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1224867 conditions, 147389 events. 54635/147389 cut-off events. For 5584120/5769330 co-relation queries the response was YES. Maximal size of possible extension queue 15247. Compared 2388902 event pairs, 27475 based on Foata normal form. 47/145021 useless extension candidates. Maximal degree in co-relation 1224760. Up to 47894 conditions per place. [2021-06-11 09:35:39,542 INFO L132 encePairwiseOnDemand]: 142/153 looper letters, 624 selfloop transitions, 502 changer transitions 1/1147 dead transitions. [2021-06-11 09:35:39,543 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 261 places, 1147 transitions, 30156 flow [2021-06-11 09:35:39,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-11 09:35:39,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-06-11 09:35:39,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1637 transitions. [2021-06-11 09:35:39,544 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8916122004357299 [2021-06-11 09:35:39,544 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1637 transitions. [2021-06-11 09:35:39,544 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1637 transitions. [2021-06-11 09:35:39,545 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 09:35:39,545 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1637 transitions. [2021-06-11 09:35:39,546 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 136.41666666666666) internal successors, (1637), 12 states have internal predecessors, (1637), 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) [2021-06-11 09:35:39,548 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 153.0) internal successors, (1989), 13 states have internal predecessors, (1989), 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) [2021-06-11 09:35:39,548 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 153.0) internal successors, (1989), 13 states have internal predecessors, (1989), 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) [2021-06-11 09:35:39,548 INFO L185 Difference]: Start difference. First operand has 250 places, 745 transitions, 19544 flow. Second operand 12 states and 1637 transitions. [2021-06-11 09:35:39,548 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 261 places, 1147 transitions, 30156 flow [2021-06-11 09:36:28,090 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 259 places, 1147 transitions, 29244 flow, removed 296 selfloop flow, removed 2 redundant places. [2021-06-11 09:36:28,108 INFO L241 Difference]: Finished difference. Result has 269 places, 915 transitions, 24698 flow [2021-06-11 09:36:28,109 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=153, PETRI_DIFFERENCE_MINUEND_FLOW=18944, PETRI_DIFFERENCE_MINUEND_PLACES=248, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=745, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=332, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=243, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=24698, PETRI_PLACES=269, PETRI_TRANSITIONS=915} [2021-06-11 09:36:28,109 INFO L343 CegarLoopForPetriNet]: 62 programPoint places, 207 predicate places. [2021-06-11 09:36:28,109 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 09:36:28,109 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 269 places, 915 transitions, 24698 flow [2021-06-11 09:36:28,110 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 269 places, 915 transitions, 24698 flow [2021-06-11 09:36:28,118 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 268 places, 915 transitions, 24698 flow [2021-06-11 09:36:51,007 INFO L129 PetriNetUnfolder]: 0/33265 cut-off events. [2021-06-11 09:36:51,007 INFO L130 PetriNetUnfolder]: For 472521/489980 co-relation queries the response was YES. [2021-06-11 09:36:51,008 INFO L84 FinitePrefix]: Finished finitePrefix Result has 112193 conditions, 33265 events. 0/33265 cut-off events. For 472521/489980 co-relation queries the response was YES. Maximal size of possible extension queue 3114. Compared 726672 event pairs, 0 based on Foata normal form. 177/30800 useless extension candidates. Maximal degree in co-relation 0. Up to 3112 conditions per place. [2021-06-11 09:36:51,760 INFO L151 LiptonReduction]: Number of co-enabled transitions 8096 [2021-06-11 09:36:51,864 INFO L163 LiptonReduction]: Checked pairs total: 0 [2021-06-11 09:36:51,864 INFO L165 LiptonReduction]: Total number of compositions: 0 [2021-06-11 09:36:51,864 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 23755 [2021-06-11 09:36:51,864 INFO L480 AbstractCegarLoop]: Abstraction has has 268 places, 915 transitions, 24698 flow [2021-06-11 09:36:51,865 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 131.91666666666666) internal successors, (1583), 12 states have internal predecessors, (1583), 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) [2021-06-11 09:36:51,865 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-06-11 09:36:51,865 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, 1, 1, 1, 1, 1, 1] [2021-06-11 09:36:51,865 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-06-11 09:36:51,865 INFO L428 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]=== [2021-06-11 09:36:51,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-11 09:36:51,866 INFO L82 PathProgramCache]: Analyzing trace with hash -1254125054, now seen corresponding path program 13 times [2021-06-11 09:36:51,866 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-11 09:36:51,866 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393322772] [2021-06-11 09:36:51,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-11 09:36:51,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-11 09:36:51,890 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 09:36:51,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-06-11 09:36:51,891 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 09:36:51,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-06-11 09:36:51,896 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 09:36:51,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-06-11 09:36:51,904 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-06-11 09:36:51,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-06-11 09:36:51,917 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-06-11 09:36:51,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-06-11 09:36:51,933 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-06-11 09:36:51,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-06-11 09:36:51,954 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-06-11 09:36:51,955 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-06-11 09:36:51,978 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-06-11 09:36:51,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-06-11 09:36:52,019 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-06-11 09:36:52,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-06-11 09:36:52,065 INFO L142 QuantifierPusher]: treesize reduction 63, result has 52.3 percent of original size [2021-06-11 09:36:52,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-06-11 09:36:52,118 INFO L142 QuantifierPusher]: treesize reduction 81, result has 47.4 percent of original size [2021-06-11 09:36:52,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-06-11 09:36:52,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-11 09:36:52,164 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393322772] [2021-06-11 09:36:52,164 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-11 09:36:52,164 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-06-11 09:36:52,164 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379510130] [2021-06-11 09:36:52,165 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-06-11 09:36:52,165 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-11 09:36:52,165 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-06-11 09:36:52,165 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-06-11 09:36:52,166 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 153 [2021-06-11 09:36:52,166 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 268 places, 915 transitions, 24698 flow. Second operand has 12 states, 12 states have (on average 131.91666666666666) internal successors, (1583), 12 states have internal predecessors, (1583), 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) [2021-06-11 09:36:52,166 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-06-11 09:36:52,166 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 153 [2021-06-11 09:36:52,166 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-06-11 09:38:20,440 INFO L129 PetriNetUnfolder]: 55946/152164 cut-off events. [2021-06-11 09:38:20,440 INFO L130 PetriNetUnfolder]: For 6324263/6481339 co-relation queries the response was YES. [2021-06-11 09:38:24,069 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1322792 conditions, 152164 events. 55946/152164 cut-off events. For 6324263/6481339 co-relation queries the response was YES. Maximal size of possible extension queue 15554. Compared 2491202 event pairs, 22537 based on Foata normal form. 45/148697 useless extension candidates. Maximal degree in co-relation 1322676. Up to 45926 conditions per place. [2021-06-11 09:38:25,019 INFO L132 encePairwiseOnDemand]: 142/153 looper letters, 812 selfloop transitions, 479 changer transitions 1/1312 dead transitions. [2021-06-11 09:38:25,020 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 279 places, 1312 transitions, 36296 flow [2021-06-11 09:38:25,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-11 09:38:25,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-06-11 09:38:25,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1637 transitions. [2021-06-11 09:38:25,021 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8916122004357299 [2021-06-11 09:38:25,021 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1637 transitions. [2021-06-11 09:38:25,021 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1637 transitions. [2021-06-11 09:38:25,021 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-06-11 09:38:25,021 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1637 transitions. [2021-06-11 09:38:25,022 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 136.41666666666666) internal successors, (1637), 12 states have internal predecessors, (1637), 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) [2021-06-11 09:38:25,023 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 153.0) internal successors, (1989), 13 states have internal predecessors, (1989), 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) [2021-06-11 09:38:25,024 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 153.0) internal successors, (1989), 13 states have internal predecessors, (1989), 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) [2021-06-11 09:38:25,024 INFO L185 Difference]: Start difference. First operand has 268 places, 915 transitions, 24698 flow. Second operand 12 states and 1637 transitions. [2021-06-11 09:38:25,024 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 279 places, 1312 transitions, 36296 flow [2021-06-11 09:39:51,722 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 277 places, 1312 transitions, 35288 flow, removed 344 selfloop flow, removed 2 redundant places. [2021-06-11 09:39:51,742 INFO L241 Difference]: Finished difference. Result has 287 places, 1005 transitions, 27898 flow [2021-06-11 09:39:51,743 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=153, PETRI_DIFFERENCE_MINUEND_FLOW=23966, PETRI_DIFFERENCE_MINUEND_PLACES=266, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=915, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=389, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=436, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=27898, PETRI_PLACES=287, PETRI_TRANSITIONS=1005} [2021-06-11 09:39:51,743 INFO L343 CegarLoopForPetriNet]: 62 programPoint places, 225 predicate places. [2021-06-11 09:39:51,743 INFO L168 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-06-11 09:39:51,743 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 287 places, 1005 transitions, 27898 flow [2021-06-11 09:39:51,743 INFO L138 LiptonReduction]: Starting Lipton reduction on Petri net that has 287 places, 1005 transitions, 27898 flow [2021-06-11 09:39:51,752 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 286 places, 1005 transitions, 27898 flow Received shutdown request... [2021-06-11 09:40:02,369 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-06-11 09:40:02,369 WARN L545 AbstractCegarLoop]: Verification canceled [2021-06-11 09:40:02,371 WARN L224 ceAbstractionStarter]: Timeout [2021-06-11 09:40:02,372 INFO L202 PluginConnector]: Adding new model example_10.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.06 09:40:02 BasicIcfg [2021-06-11 09:40:02,372 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-11 09:40:02,372 INFO L168 Benchmark]: Toolchain (without parser) took 742821.68 ms. Allocated memory was 331.4 MB in the beginning and 16.0 GB in the end (delta: 15.6 GB). Free memory was 311.0 MB in the beginning and 8.1 GB in the end (delta: -7.8 GB). Peak memory consumption was 7.8 GB. Max. memory is 16.0 GB. [2021-06-11 09:40:02,372 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.14 ms. Allocated memory is still 331.4 MB. Free memory was 312.1 MB in the beginning and 312.0 MB in the end (delta: 70.3 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-11 09:40:02,372 INFO L168 Benchmark]: Boogie Procedure Inliner took 23.42 ms. Allocated memory is still 331.4 MB. Free memory was 311.0 MB in the beginning and 309.5 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-11 09:40:02,373 INFO L168 Benchmark]: Boogie Preprocessor took 11.25 ms. Allocated memory is still 331.4 MB. Free memory was 309.5 MB in the beginning and 308.5 MB in the end (delta: 950.7 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-11 09:40:02,373 INFO L168 Benchmark]: RCFGBuilder took 223.29 ms. Allocated memory is still 331.4 MB. Free memory was 308.5 MB in the beginning and 295.9 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.0 GB. [2021-06-11 09:40:02,373 INFO L168 Benchmark]: TraceAbstraction took 742559.49 ms. Allocated memory was 331.4 MB in the beginning and 16.0 GB in the end (delta: 15.6 GB). Free memory was 295.4 MB in the beginning and 8.1 GB in the end (delta: -7.8 GB). Peak memory consumption was 7.8 GB. Max. memory is 16.0 GB. [2021-06-11 09:40:02,373 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 0.14 ms. Allocated memory is still 331.4 MB. Free memory was 312.1 MB in the beginning and 312.0 MB in the end (delta: 70.3 kB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 23.42 ms. Allocated memory is still 331.4 MB. Free memory was 311.0 MB in the beginning and 309.5 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 11.25 ms. Allocated memory is still 331.4 MB. Free memory was 309.5 MB in the beginning and 308.5 MB in the end (delta: 950.7 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 223.29 ms. Allocated memory is still 331.4 MB. Free memory was 308.5 MB in the beginning and 295.9 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.0 GB. * TraceAbstraction took 742559.49 ms. Allocated memory was 331.4 MB in the beginning and 16.0 GB in the end (delta: 15.6 GB). Free memory was 295.4 MB in the beginning and 8.1 GB in the end (delta: -7.8 GB). Peak memory consumption was 7.8 GB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 655.4ms, 72 PlacesBefore, 62 PlacesAfterwards, 131 TransitionsBefore, 121 TransitionsAfterwards, 3780 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 10 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 10 TotalNumberOfCompositions, 1035 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1035, positive: 1035, positive conditional: 0, positive unconditional: 1035, 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: 1035, positive: 1035, positive conditional: 0, positive unconditional: 1035, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1035, positive: 1035, positive conditional: 0, positive unconditional: 1035, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1035, positive: 1035, positive conditional: 0, positive unconditional: 1035, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1035, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 1035, unknown conditional: 0, unknown unconditional: 1035] , Statistics on independence cache: Total cache size (in pairs): 1125, Positive cache size: 1125, Positive conditional cache size: 0, Positive unconditional cache size: 1125, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 250.9ms, 44 PlacesBefore, 44 PlacesAfterwards, 118 TransitionsBefore, 118 TransitionsAfterwards, 1746 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: UnionIndependenceRelation.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] , UnionIndependenceRelation.Statistics on underlying relations: [ 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] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 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): 1125, Positive cache size: 1125, Positive conditional cache size: 0, Positive unconditional cache size: 1125, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 179.9ms, 45 PlacesBefore, 45 PlacesAfterwards, 114 TransitionsBefore, 114 TransitionsAfterwards, 1674 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: UnionIndependenceRelation.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] , UnionIndependenceRelation.Statistics on underlying relations: [ 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] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 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): 1125, Positive cache size: 1125, Positive conditional cache size: 0, Positive unconditional cache size: 1125, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 93.6ms, 46 PlacesBefore, 46 PlacesAfterwards, 107 TransitionsBefore, 107 TransitionsAfterwards, 1548 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: UnionIndependenceRelation.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] , UnionIndependenceRelation.Statistics on underlying relations: [ 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] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 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): 1125, Positive cache size: 1125, Positive conditional cache size: 0, Positive unconditional cache size: 1125, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 40.7ms, 47 PlacesBefore, 47 PlacesAfterwards, 101 TransitionsBefore, 101 TransitionsAfterwards, 1440 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: UnionIndependenceRelation.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] , UnionIndependenceRelation.Statistics on underlying relations: [ 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] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 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): 1125, Positive cache size: 1125, Positive conditional cache size: 0, Positive unconditional cache size: 1125, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 40.7ms, 48 PlacesBefore, 48 PlacesAfterwards, 99 TransitionsBefore, 99 TransitionsAfterwards, 1404 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: UnionIndependenceRelation.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] , UnionIndependenceRelation.Statistics on underlying relations: [ 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] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 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): 1125, Positive cache size: 1125, Positive conditional cache size: 0, Positive unconditional cache size: 1125, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 14.3ms, 49 PlacesBefore, 49 PlacesAfterwards, 81 TransitionsBefore, 81 TransitionsAfterwards, 902 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: UnionIndependenceRelation.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] , UnionIndependenceRelation.Statistics on underlying relations: [ 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] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 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): 1125, Positive cache size: 1125, Positive conditional cache size: 0, Positive unconditional cache size: 1125, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6.3ms, 50 PlacesBefore, 50 PlacesAfterwards, 52 TransitionsBefore, 52 TransitionsAfterwards, 542 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: UnionIndependenceRelation.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] , UnionIndependenceRelation.Statistics on underlying relations: [ 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] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 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): 1125, Positive cache size: 1125, Positive conditional cache size: 0, Positive unconditional cache size: 1125, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.6ms, 51 PlacesBefore, 51 PlacesAfterwards, 33 TransitionsBefore, 33 TransitionsAfterwards, 304 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: UnionIndependenceRelation.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] , UnionIndependenceRelation.Statistics on underlying relations: [ 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] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 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): 1125, Positive cache size: 1125, Positive conditional cache size: 0, Positive unconditional cache size: 1125, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 11.5ms, 71 PlacesBefore, 71 PlacesAfterwards, 42 TransitionsBefore, 42 TransitionsAfterwards, 508 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: UnionIndependenceRelation.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] , UnionIndependenceRelation.Statistics on underlying relations: [ 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] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 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): 1125, Positive cache size: 1125, Positive conditional cache size: 0, Positive unconditional cache size: 1125, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 38.4ms, 91 PlacesBefore, 91 PlacesAfterwards, 57 TransitionsBefore, 57 TransitionsAfterwards, 746 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: UnionIndependenceRelation.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] , UnionIndependenceRelation.Statistics on underlying relations: [ 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] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 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): 1125, Positive cache size: 1125, Positive conditional cache size: 0, Positive unconditional cache size: 1125, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 109.7ms, 111 PlacesBefore, 111 PlacesAfterwards, 85 TransitionsBefore, 85 TransitionsAfterwards, 1190 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: UnionIndependenceRelation.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] , UnionIndependenceRelation.Statistics on underlying relations: [ 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] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 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): 1125, Positive cache size: 1125, Positive conditional cache size: 0, Positive unconditional cache size: 1125, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 300.6ms, 131 PlacesBefore, 131 PlacesAfterwards, 137 TransitionsBefore, 137 TransitionsAfterwards, 1984 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: UnionIndependenceRelation.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] , UnionIndependenceRelation.Statistics on underlying relations: [ 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] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 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): 1125, Positive cache size: 1125, Positive conditional cache size: 0, Positive unconditional cache size: 1125, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 612.2ms, 151 PlacesBefore, 151 PlacesAfterwards, 181 TransitionsBefore, 181 TransitionsAfterwards, 2546 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: UnionIndependenceRelation.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] , UnionIndependenceRelation.Statistics on underlying relations: [ 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] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 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): 1125, Positive cache size: 1125, Positive conditional cache size: 0, Positive unconditional cache size: 1125, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 878.0ms, 171 PlacesBefore, 171 PlacesAfterwards, 230 TransitionsBefore, 230 TransitionsAfterwards, 3212 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: UnionIndependenceRelation.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] , UnionIndependenceRelation.Statistics on underlying relations: [ 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] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 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): 1125, Positive cache size: 1125, Positive conditional cache size: 0, Positive unconditional cache size: 1125, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2360.9ms, 191 PlacesBefore, 191 PlacesAfterwards, 320 TransitionsBefore, 320 TransitionsAfterwards, 4166 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: UnionIndependenceRelation.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] , UnionIndependenceRelation.Statistics on underlying relations: [ 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] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 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): 1125, Positive cache size: 1125, Positive conditional cache size: 0, Positive unconditional cache size: 1125, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4836.2ms, 211 PlacesBefore, 211 PlacesAfterwards, 464 TransitionsBefore, 464 TransitionsAfterwards, 5230 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: UnionIndependenceRelation.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] , UnionIndependenceRelation.Statistics on underlying relations: [ 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] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 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): 1125, Positive cache size: 1125, Positive conditional cache size: 0, Positive unconditional cache size: 1125, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6266.4ms, 231 PlacesBefore, 231 PlacesAfterwards, 641 TransitionsBefore, 641 TransitionsAfterwards, 6252 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: UnionIndependenceRelation.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] , UnionIndependenceRelation.Statistics on underlying relations: [ 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] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 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): 1125, Positive cache size: 1125, Positive conditional cache size: 0, Positive unconditional cache size: 1125, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5723.2ms, 232 PlacesBefore, 223 PlacesAfterwards, 629 TransitionsBefore, 629 TransitionsAfterwards, 5028 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: UnionIndependenceRelation.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] , UnionIndependenceRelation.Statistics on underlying relations: [ 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] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 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): 1125, Positive cache size: 1125, Positive conditional cache size: 0, Positive unconditional cache size: 1125, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 9283.2ms, 233 PlacesBefore, 232 PlacesAfterwards, 690 TransitionsBefore, 690 TransitionsAfterwards, 5772 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: UnionIndependenceRelation.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] , UnionIndependenceRelation.Statistics on underlying relations: [ 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] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 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): 1125, Positive cache size: 1125, Positive conditional cache size: 0, Positive unconditional cache size: 1125, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 10316.2ms, 251 PlacesBefore, 250 PlacesAfterwards, 745 TransitionsBefore, 745 TransitionsAfterwards, 6438 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: UnionIndependenceRelation.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] , UnionIndependenceRelation.Statistics on underlying relations: [ 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] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 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): 1125, Positive cache size: 1125, Positive conditional cache size: 0, Positive unconditional cache size: 1125, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 23754.3ms, 269 PlacesBefore, 268 PlacesAfterwards, 915 TransitionsBefore, 915 TransitionsAfterwards, 8096 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: UnionIndependenceRelation.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] , UnionIndependenceRelation.Statistics on underlying relations: [ 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] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 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): 1125, Positive cache size: 1125, Positive conditional cache size: 0, Positive unconditional cache size: 1125, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - TimeoutResultAtElement [Line: 33]: Timeout (TraceAbstraction) Unable to prove that assertion always holds (line 33). Cancelled while PetriNetLargeBlockEncoding was applying PetriNetLargeBlockEncoding to Petri net that has 287 places, 1005 transitions, 27898 flow,while LiptonReduction was applying LiptonReduction to Petri net that has 287 places, 1005 transitions, 27898 flow,while PetriNetUnfolder was constructing finite prefix that currently has 121467 conditions, 26730 events (0/26729 cut-off events. For 657593/686531 co-relation queries the response was YES. Maximal size of possible extension queue 3690. Compared 602808 event pairs, 0 based on Foata normal form. 231/27287 useless extension candidates. Maximal degree in co-relation 0. Up to 3508 conditions per place.). - StatisticsResult: Ultimate Automizer benchmark data CFG has 11 procedures, 54 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 334.0ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: TIMEOUT, OverallTime: 742363.7ms, OverallIterations: 22, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 659436.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1386.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 707 SDtfs, 742 SDslu, 683 SDs, 0 SdLazy, 1311 SolverSat, 36 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1580.6ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 183 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 152 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 4772.3ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=27898occurred in iteration=22, InterpolantAutomatonStates: 183, 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: 37.5ms SsaConstructionTime, 98.9ms SatisfiabilityAnalysisTime, 5043.2ms InterpolantComputationTime, 682 NumberOfCodeBlocks, 682 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 660 ConstructedInterpolants, 0 QuantifiedInterpolants, 15398 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 22 InterpolantComputations, 22 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