/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-RepeatedSemanticLbeWithPredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/mcr/example_9.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-6f4246e9f5583d222ebb38ff8175c901f3a528f0-6f4246e [2021-04-29 04:09:42,517 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-29 04:09:42,520 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-29 04:09:42,569 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-04-29 04:09:42,570 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-04-29 04:09:42,573 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-04-29 04:09:42,577 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-04-29 04:09:42,585 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-04-29 04:09:42,589 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-04-29 04:09:42,595 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-04-29 04:09:42,597 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-04-29 04:09:42,599 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-04-29 04:09:42,600 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-04-29 04:09:42,603 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-04-29 04:09:42,606 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-04-29 04:09:42,608 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-04-29 04:09:42,611 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-04-29 04:09:42,613 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-04-29 04:09:42,620 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-04-29 04:09:42,628 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-04-29 04:09:42,630 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-04-29 04:09:42,632 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-04-29 04:09:42,633 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-04-29 04:09:42,635 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-04-29 04:09:42,644 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-04-29 04:09:42,649 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-04-29 04:09:42,650 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-04-29 04:09:42,652 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-04-29 04:09:42,652 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-04-29 04:09:42,653 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-04-29 04:09:42,654 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-04-29 04:09:42,654 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-04-29 04:09:42,655 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-04-29 04:09:42,655 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-04-29 04:09:42,656 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-04-29 04:09:42,657 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-04-29 04:09:42,658 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-RepeatedSemanticLbeWithPredicates.epf [2021-04-29 04:09:42,714 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-29 04:09:42,715 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-29 04:09:42,719 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-04-29 04:09:42,719 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-04-29 04:09:42,719 INFO L138 SettingsManager]: * Use SBE=true [2021-04-29 04:09:42,720 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-29 04:09:42,720 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-29 04:09:42,720 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-29 04:09:42,720 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-29 04:09:42,721 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-29 04:09:42,722 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-29 04:09:42,722 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-29 04:09:42,722 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-29 04:09:42,722 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-29 04:09:42,723 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-29 04:09:42,723 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-29 04:09:42,723 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-29 04:09:42,723 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-29 04:09:42,723 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-29 04:09:42,724 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-04-29 04:09:42,727 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-29 04:09:42,727 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-29 04:09:42,727 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-29 04:09:42,728 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-04-29 04:09:42,728 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-04-29 04:09:42,728 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-04-29 04:09:42,728 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-04-29 04:09:42,728 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-04-29 04:09:42,728 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-04-29 04:09:42,728 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-04-29 04:09:42,729 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-29 04:09:43,128 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-29 04:09:43,155 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-29 04:09:43,158 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-29 04:09:43,160 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-04-29 04:09:43,161 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-04-29 04:09:43,162 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/mcr/example_9.bpl [2021-04-29 04:09:43,162 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/mcr/example_9.bpl' [2021-04-29 04:09:43,201 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-29 04:09:43,258 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-04-29 04:09:43,261 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-04-29 04:09:43,261 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-04-29 04:09:43,261 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-04-29 04:09:43,280 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "example_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 04:09:43" (1/1) ... [2021-04-29 04:09:43,288 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "example_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 04:09:43" (1/1) ... [2021-04-29 04:09:43,295 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-04-29 04:09:43,297 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-29 04:09:43,297 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-29 04:09:43,297 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-29 04:09:43,307 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "example_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 04:09:43" (1/1) ... [2021-04-29 04:09:43,307 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "example_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 04:09:43" (1/1) ... [2021-04-29 04:09:43,308 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "example_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 04:09:43" (1/1) ... [2021-04-29 04:09:43,308 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "example_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 04:09:43" (1/1) ... [2021-04-29 04:09:43,312 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "example_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 04:09:43" (1/1) ... [2021-04-29 04:09:43,313 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "example_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 04:09:43" (1/1) ... [2021-04-29 04:09:43,314 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "example_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 04:09:43" (1/1) ... [2021-04-29 04:09:43,315 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-29 04:09:43,316 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-29 04:09:43,316 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-29 04:09:43,316 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-29 04:09:43,318 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "example_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 04:09:43" (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 [2021-04-29 04:09:43,444 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_1 given in one single declaration [2021-04-29 04:09:43,446 INFO L130 BoogieDeclarations]: Found specification of procedure set_1 [2021-04-29 04:09:43,447 INFO L138 BoogieDeclarations]: Found implementation of procedure set_1 [2021-04-29 04:09:43,448 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_2 given in one single declaration [2021-04-29 04:09:43,448 INFO L130 BoogieDeclarations]: Found specification of procedure set_2 [2021-04-29 04:09:43,448 INFO L138 BoogieDeclarations]: Found implementation of procedure set_2 [2021-04-29 04:09:43,448 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_3 given in one single declaration [2021-04-29 04:09:43,448 INFO L130 BoogieDeclarations]: Found specification of procedure set_3 [2021-04-29 04:09:43,448 INFO L138 BoogieDeclarations]: Found implementation of procedure set_3 [2021-04-29 04:09:43,449 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_4 given in one single declaration [2021-04-29 04:09:43,449 INFO L130 BoogieDeclarations]: Found specification of procedure set_4 [2021-04-29 04:09:43,449 INFO L138 BoogieDeclarations]: Found implementation of procedure set_4 [2021-04-29 04:09:43,459 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_0 given in one single declaration [2021-04-29 04:09:43,459 INFO L130 BoogieDeclarations]: Found specification of procedure set_0 [2021-04-29 04:09:43,459 INFO L138 BoogieDeclarations]: Found implementation of procedure set_0 [2021-04-29 04:09:43,459 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-04-29 04:09:43,464 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-29 04:09:43,464 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-29 04:09:43,465 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_5 given in one single declaration [2021-04-29 04:09:43,466 INFO L130 BoogieDeclarations]: Found specification of procedure set_5 [2021-04-29 04:09:43,466 INFO L138 BoogieDeclarations]: Found implementation of procedure set_5 [2021-04-29 04:09:43,467 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_6 given in one single declaration [2021-04-29 04:09:43,468 INFO L130 BoogieDeclarations]: Found specification of procedure set_6 [2021-04-29 04:09:43,468 INFO L138 BoogieDeclarations]: Found implementation of procedure set_6 [2021-04-29 04:09:43,470 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_7 given in one single declaration [2021-04-29 04:09:43,471 INFO L130 BoogieDeclarations]: Found specification of procedure set_7 [2021-04-29 04:09:43,473 INFO L138 BoogieDeclarations]: Found implementation of procedure set_7 [2021-04-29 04:09:43,473 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_8 given in one single declaration [2021-04-29 04:09:43,474 INFO L130 BoogieDeclarations]: Found specification of procedure set_8 [2021-04-29 04:09:43,474 INFO L138 BoogieDeclarations]: Found implementation of procedure set_8 [2021-04-29 04:09:43,475 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-04-29 04:09:43,659 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-29 04:09:43,660 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-04-29 04:09:43,662 INFO L202 PluginConnector]: Adding new model example_9.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 04:09:43 BoogieIcfgContainer [2021-04-29 04:09:43,662 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-29 04:09:43,663 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-29 04:09:43,664 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-29 04:09:43,667 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-29 04:09:43,667 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 04:09:43" (1/2) ... [2021-04-29 04:09:43,668 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@520bc879 and model type example_9.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 04:09:43, skipping insertion in model container [2021-04-29 04:09:43,668 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example_9.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 04:09:43" (2/2) ... [2021-04-29 04:09:43,670 INFO L111 eAbstractionObserver]: Analyzing ICFG example_9.bpl [2021-04-29 04:09:43,677 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-04-29 04:09:43,682 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-04-29 04:09:43,683 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-04-29 04:09:43,939 INFO L149 ThreadInstanceAdder]: Constructed 81 joinOtherThreadTransitions. [2021-04-29 04:09:43,962 INFO L253 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2021-04-29 04:09:43,989 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-29 04:09:43,990 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-29 04:09:43,990 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-29 04:09:43,990 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-29 04:09:43,990 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-29 04:09:43,990 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-29 04:09:43,990 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-29 04:09:43,991 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-29 04:09:44,008 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 76 places, 120 transitions, 528 flow [2021-04-29 04:09:44,419 INFO L129 PetriNetUnfolder]: 1793/2334 cut-off events. [2021-04-29 04:09:44,419 INFO L130 PetriNetUnfolder]: For 2304/2304 co-relation queries the response was YES. [2021-04-29 04:09:44,434 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4666 conditions, 2334 events. 1793/2334 cut-off events. For 2304/2304 co-relation queries the response was YES. Maximal size of possible extension queue 148. Compared 8920 event pairs, 0 based on Foata normal form. 0/2333 useless extension candidates. Maximal degree in co-relation 2090. Up to 630 conditions per place. [2021-04-29 04:09:44,435 INFO L82 GeneralOperation]: Start removeDead. Operand has 76 places, 120 transitions, 528 flow [2021-04-29 04:09:44,470 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 65 places, 109 transitions, 488 flow [2021-04-29 04:09:44,472 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 04:09:44,490 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 65 places, 109 transitions, 488 flow [2021-04-29 04:09:44,495 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 65 places, 109 transitions, 488 flow [2021-04-29 04:09:44,497 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 65 places, 109 transitions, 488 flow [2021-04-29 04:09:44,769 INFO L129 PetriNetUnfolder]: 1793/2332 cut-off events. [2021-04-29 04:09:44,770 INFO L130 PetriNetUnfolder]: For 2304/2304 co-relation queries the response was YES. [2021-04-29 04:09:44,780 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4664 conditions, 2332 events. 1793/2332 cut-off events. For 2304/2304 co-relation queries the response was YES. Maximal size of possible extension queue 148. Compared 8412 event pairs, 0 based on Foata normal form. 0/2332 useless extension candidates. Maximal degree in co-relation 2090. Up to 630 conditions per place. [2021-04-29 04:09:44,837 INFO L146 LiptonReduction]: Number of co-enabled transitions 2736 [2021-04-29 04:09:45,044 INFO L158 LiptonReduction]: Checked pairs total: 756 [2021-04-29 04:09:45,044 INFO L160 LiptonReduction]: Total number of compositions: 9 [2021-04-29 04:09:45,047 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 576 [2021-04-29 04:09:45,289 INFO L129 PetriNetUnfolder]: 1793/2331 cut-off events. [2021-04-29 04:09:45,290 INFO L130 PetriNetUnfolder]: For 2304/2304 co-relation queries the response was YES. [2021-04-29 04:09:45,290 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 04:09:45,291 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] [2021-04-29 04:09:45,291 INFO L428 AbstractCegarLoop]: === Iteration 1 === [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]=== [2021-04-29 04:09:45,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 04:09:45,301 INFO L82 PathProgramCache]: Analyzing trace with hash 1106464093, now seen corresponding path program 1 times [2021-04-29 04:09:45,314 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 04:09:45,317 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326565974] [2021-04-29 04:09:45,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 04:09:45,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 04:09:45,551 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 04:09:45,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 04:09:45,570 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 04:09:45,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 04:09:45,583 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 04:09:45,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 04:09:45,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 04:09:45,588 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326565974] [2021-04-29 04:09:45,589 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 04:09:45,590 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-29 04:09:45,590 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750249741] [2021-04-29 04:09:45,613 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 04:09:45,613 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 04:09:45,628 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 04:09:45,631 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 04:09:45,635 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 129 [2021-04-29 04:09:45,642 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 109 transitions, 488 flow. Second operand has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 04:09:45,643 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 04:09:45,643 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 129 [2021-04-29 04:09:45,644 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 04:09:45,926 INFO L129 PetriNetUnfolder]: 1001/1377 cut-off events. [2021-04-29 04:09:45,926 INFO L130 PetriNetUnfolder]: For 2025/2025 co-relation queries the response was YES. [2021-04-29 04:09:45,931 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2849 conditions, 1377 events. 1001/1377 cut-off events. For 2025/2025 co-relation queries the response was YES. Maximal size of possible extension queue 87. Compared 5750 event pairs, 0 based on Foata normal form. 163/1531 useless extension candidates. Maximal degree in co-relation 2075. Up to 280 conditions per place. [2021-04-29 04:09:45,946 INFO L132 encePairwiseOnDemand]: 123/129 looper letters, 4 selfloop transitions, 1 changer transitions 0/104 dead transitions. [2021-04-29 04:09:45,947 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 104 transitions, 473 flow [2021-04-29 04:09:45,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 04:09:45,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 04:09:45,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 367 transitions. [2021-04-29 04:09:45,971 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9483204134366925 [2021-04-29 04:09:45,972 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 367 transitions. [2021-04-29 04:09:45,973 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 367 transitions. [2021-04-29 04:09:45,977 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 04:09:45,980 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 367 transitions. [2021-04-29 04:09:45,987 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 122.33333333333333) internal successors, (367), 3 states have internal predecessors, (367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 04:09:45,997 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 129.0) internal successors, (516), 4 states have internal predecessors, (516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 04:09:45,998 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 129.0) internal successors, (516), 4 states have internal predecessors, (516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 04:09:46,000 INFO L185 Difference]: Start difference. First operand has 65 places, 109 transitions, 488 flow. Second operand 3 states and 367 transitions. [2021-04-29 04:09:46,002 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 104 transitions, 473 flow [2021-04-29 04:09:46,030 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 104 transitions, 303 flow, removed 0 selfloop flow, removed 18 redundant places. [2021-04-29 04:09:46,036 INFO L241 Difference]: Finished difference. Result has 49 places, 104 transitions, 295 flow [2021-04-29 04:09:46,039 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=129, PETRI_DIFFERENCE_MINUEND_FLOW=293, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=295, PETRI_PLACES=49, PETRI_TRANSITIONS=104} [2021-04-29 04:09:46,040 INFO L343 CegarLoopForPetriNet]: 65 programPoint places, -16 predicate places. [2021-04-29 04:09:46,040 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 04:09:46,042 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 49 places, 104 transitions, 295 flow [2021-04-29 04:09:46,044 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 49 places, 104 transitions, 295 flow [2021-04-29 04:09:46,045 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 49 places, 104 transitions, 295 flow [2021-04-29 04:09:46,162 INFO L129 PetriNetUnfolder]: 1001/1377 cut-off events. [2021-04-29 04:09:46,163 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 04:09:46,166 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1389 conditions, 1377 events. 1001/1377 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 88. Compared 5177 event pairs, 0 based on Foata normal form. 0/1368 useless extension candidates. Maximal degree in co-relation 1374. Up to 280 conditions per place. [2021-04-29 04:09:46,192 INFO L146 LiptonReduction]: Number of co-enabled transitions 2576 [2021-04-29 04:09:46,221 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 04:09:46,222 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 04:09:46,222 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 182 [2021-04-29 04:09:46,227 INFO L480 AbstractCegarLoop]: Abstraction has has 49 places, 104 transitions, 295 flow [2021-04-29 04:09:46,228 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 04:09:46,228 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 04:09:46,229 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] [2021-04-29 04:09:46,229 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-29 04:09:46,229 INFO L428 AbstractCegarLoop]: === Iteration 2 === [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]=== [2021-04-29 04:09:46,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 04:09:46,232 INFO L82 PathProgramCache]: Analyzing trace with hash -1652837559, now seen corresponding path program 1 times [2021-04-29 04:09:46,232 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 04:09:46,232 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582637018] [2021-04-29 04:09:46,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 04:09:46,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 04:09:46,286 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 04:09:46,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 04:09:46,288 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 04:09:46,288 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 04:09:46,292 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 04:09:46,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 04:09:46,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 04:09:46,293 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1582637018] [2021-04-29 04:09:46,294 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 04:09:46,294 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-29 04:09:46,294 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832724005] [2021-04-29 04:09:46,295 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 04:09:46,296 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 04:09:46,296 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 04:09:46,297 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 04:09:46,298 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 129 [2021-04-29 04:09:46,299 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 104 transitions, 295 flow. Second operand has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 04:09:46,299 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 04:09:46,299 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 129 [2021-04-29 04:09:46,299 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 04:09:46,424 INFO L129 PetriNetUnfolder]: 994/1369 cut-off events. [2021-04-29 04:09:46,424 INFO L130 PetriNetUnfolder]: For 157/157 co-relation queries the response was YES. [2021-04-29 04:09:46,428 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1539 conditions, 1369 events. 994/1369 cut-off events. For 157/157 co-relation queries the response was YES. Maximal size of possible extension queue 87. Compared 6131 event pairs, 0 based on Foata normal form. 1/1361 useless extension candidates. Maximal degree in co-relation 1522. Up to 280 conditions per place. [2021-04-29 04:09:46,442 INFO L132 encePairwiseOnDemand]: 127/129 looper letters, 8 selfloop transitions, 1 changer transitions 0/103 dead transitions. [2021-04-29 04:09:46,442 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 103 transitions, 310 flow [2021-04-29 04:09:46,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 04:09:46,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 04:09:46,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 367 transitions. [2021-04-29 04:09:46,445 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9483204134366925 [2021-04-29 04:09:46,445 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 367 transitions. [2021-04-29 04:09:46,446 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 367 transitions. [2021-04-29 04:09:46,446 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 04:09:46,446 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 367 transitions. [2021-04-29 04:09:46,448 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 122.33333333333333) internal successors, (367), 3 states have internal predecessors, (367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 04:09:46,450 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 129.0) internal successors, (516), 4 states have internal predecessors, (516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 04:09:46,451 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 129.0) internal successors, (516), 4 states have internal predecessors, (516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 04:09:46,451 INFO L185 Difference]: Start difference. First operand has 49 places, 104 transitions, 295 flow. Second operand 3 states and 367 transitions. [2021-04-29 04:09:46,451 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 103 transitions, 310 flow [2021-04-29 04:09:46,454 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 103 transitions, 309 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-29 04:09:46,457 INFO L241 Difference]: Finished difference. Result has 50 places, 103 transitions, 293 flow [2021-04-29 04:09:46,457 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=129, PETRI_DIFFERENCE_MINUEND_FLOW=291, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=293, PETRI_PLACES=50, PETRI_TRANSITIONS=103} [2021-04-29 04:09:46,458 INFO L343 CegarLoopForPetriNet]: 65 programPoint places, -15 predicate places. [2021-04-29 04:09:46,458 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 04:09:46,459 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 50 places, 103 transitions, 293 flow [2021-04-29 04:09:46,459 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 50 places, 103 transitions, 293 flow [2021-04-29 04:09:46,460 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 50 places, 103 transitions, 293 flow [2021-04-29 04:09:46,554 INFO L129 PetriNetUnfolder]: 994/1369 cut-off events. [2021-04-29 04:09:46,554 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 04:09:46,557 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1382 conditions, 1369 events. 994/1369 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 88. Compared 5165 event pairs, 0 based on Foata normal form. 0/1360 useless extension candidates. Maximal degree in co-relation 1375. Up to 280 conditions per place. [2021-04-29 04:09:46,570 INFO L146 LiptonReduction]: Number of co-enabled transitions 2544 [2021-04-29 04:09:46,597 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 04:09:46,597 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 04:09:46,597 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 139 [2021-04-29 04:09:46,600 INFO L480 AbstractCegarLoop]: Abstraction has has 50 places, 103 transitions, 293 flow [2021-04-29 04:09:46,600 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 04:09:46,600 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 04:09:46,601 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] [2021-04-29 04:09:46,601 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-04-29 04:09:46,601 INFO L428 AbstractCegarLoop]: === Iteration 3 === [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]=== [2021-04-29 04:09:46,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 04:09:46,602 INFO L82 PathProgramCache]: Analyzing trace with hash 423043027, now seen corresponding path program 1 times [2021-04-29 04:09:46,602 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 04:09:46,602 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [396492822] [2021-04-29 04:09:46,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 04:09:46,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 04:09:46,628 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 04:09:46,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 04:09:46,629 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 04:09:46,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 04:09:46,633 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 04:09:46,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 04:09:46,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 04:09:46,634 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [396492822] [2021-04-29 04:09:46,635 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 04:09:46,635 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-29 04:09:46,635 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135603546] [2021-04-29 04:09:46,636 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 04:09:46,636 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 04:09:46,636 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 04:09:46,637 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 04:09:46,638 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 129 [2021-04-29 04:09:46,639 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 103 transitions, 293 flow. Second operand has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 04:09:46,639 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 04:09:46,639 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 129 [2021-04-29 04:09:46,639 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 04:09:46,774 INFO L129 PetriNetUnfolder]: 946/1313 cut-off events. [2021-04-29 04:09:46,774 INFO L130 PetriNetUnfolder]: For 156/156 co-relation queries the response was YES. [2021-04-29 04:09:46,778 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1477 conditions, 1313 events. 946/1313 cut-off events. For 156/156 co-relation queries the response was YES. Maximal size of possible extension queue 87. Compared 5844 event pairs, 0 based on Foata normal form. 7/1311 useless extension candidates. Maximal degree in co-relation 1469. Up to 280 conditions per place. [2021-04-29 04:09:46,790 INFO L132 encePairwiseOnDemand]: 126/129 looper letters, 7 selfloop transitions, 1 changer transitions 0/101 dead transitions. [2021-04-29 04:09:46,790 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 101 transitions, 303 flow [2021-04-29 04:09:46,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 04:09:46,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 04:09:46,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 367 transitions. [2021-04-29 04:09:46,793 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9483204134366925 [2021-04-29 04:09:46,793 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 367 transitions. [2021-04-29 04:09:46,794 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 367 transitions. [2021-04-29 04:09:46,794 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 04:09:46,794 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 367 transitions. [2021-04-29 04:09:46,796 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 122.33333333333333) internal successors, (367), 3 states have internal predecessors, (367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 04:09:46,797 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 129.0) internal successors, (516), 4 states have internal predecessors, (516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 04:09:46,798 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 129.0) internal successors, (516), 4 states have internal predecessors, (516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 04:09:46,798 INFO L185 Difference]: Start difference. First operand has 50 places, 103 transitions, 293 flow. Second operand 3 states and 367 transitions. [2021-04-29 04:09:46,798 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 101 transitions, 303 flow [2021-04-29 04:09:46,800 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 101 transitions, 302 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-29 04:09:46,802 INFO L241 Difference]: Finished difference. Result has 51 places, 101 transitions, 288 flow [2021-04-29 04:09:46,803 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=129, PETRI_DIFFERENCE_MINUEND_FLOW=286, PETRI_DIFFERENCE_MINUEND_PLACES=49, 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=288, PETRI_PLACES=51, PETRI_TRANSITIONS=101} [2021-04-29 04:09:46,803 INFO L343 CegarLoopForPetriNet]: 65 programPoint places, -14 predicate places. [2021-04-29 04:09:46,803 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 04:09:46,803 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 51 places, 101 transitions, 288 flow [2021-04-29 04:09:46,804 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 51 places, 101 transitions, 288 flow [2021-04-29 04:09:46,805 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 51 places, 101 transitions, 288 flow [2021-04-29 04:09:46,931 INFO L129 PetriNetUnfolder]: 946/1313 cut-off events. [2021-04-29 04:09:46,931 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 04:09:46,933 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1327 conditions, 1313 events. 946/1313 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 88. Compared 5068 event pairs, 0 based on Foata normal form. 0/1304 useless extension candidates. Maximal degree in co-relation 1320. Up to 280 conditions per place. [2021-04-29 04:09:46,946 INFO L146 LiptonReduction]: Number of co-enabled transitions 2480 [2021-04-29 04:09:46,972 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 04:09:46,972 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 04:09:46,972 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 169 [2021-04-29 04:09:46,979 INFO L480 AbstractCegarLoop]: Abstraction has has 51 places, 101 transitions, 288 flow [2021-04-29 04:09:46,980 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 04:09:46,980 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 04:09:46,981 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] [2021-04-29 04:09:46,982 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-04-29 04:09:46,982 INFO L428 AbstractCegarLoop]: === Iteration 4 === [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]=== [2021-04-29 04:09:46,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 04:09:46,983 INFO L82 PathProgramCache]: Analyzing trace with hash 1227930555, now seen corresponding path program 1 times [2021-04-29 04:09:46,983 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 04:09:46,983 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105454496] [2021-04-29 04:09:46,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 04:09:47,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 04:09:47,042 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 04:09:47,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 04:09:47,046 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 04:09:47,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 04:09:47,055 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 04:09:47,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 04:09:47,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 04:09:47,056 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1105454496] [2021-04-29 04:09:47,057 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 04:09:47,057 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-29 04:09:47,057 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773472873] [2021-04-29 04:09:47,058 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 04:09:47,058 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 04:09:47,058 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 04:09:47,058 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 04:09:47,059 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 129 [2021-04-29 04:09:47,061 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 101 transitions, 288 flow. Second operand has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 04:09:47,061 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 04:09:47,061 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 129 [2021-04-29 04:09:47,062 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 04:09:47,156 INFO L129 PetriNetUnfolder]: 393/606 cut-off events. [2021-04-29 04:09:47,156 INFO L130 PetriNetUnfolder]: For 149/149 co-relation queries the response was YES. [2021-04-29 04:09:47,158 INFO L84 FinitePrefix]: Finished finitePrefix Result has 659 conditions, 606 events. 393/606 cut-off events. For 149/149 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 2535 event pairs, 0 based on Foata normal form. 112/709 useless extension candidates. Maximal degree in co-relation 651. Up to 140 conditions per place. [2021-04-29 04:09:47,166 INFO L132 encePairwiseOnDemand]: 122/129 looper letters, 3 selfloop transitions, 1 changer transitions 0/95 dead transitions. [2021-04-29 04:09:47,166 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 95 transitions, 278 flow [2021-04-29 04:09:47,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 04:09:47,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 04:09:47,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 367 transitions. [2021-04-29 04:09:47,170 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9483204134366925 [2021-04-29 04:09:47,170 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 367 transitions. [2021-04-29 04:09:47,170 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 367 transitions. [2021-04-29 04:09:47,171 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 04:09:47,171 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 367 transitions. [2021-04-29 04:09:47,172 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 122.33333333333333) internal successors, (367), 3 states have internal predecessors, (367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 04:09:47,174 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 129.0) internal successors, (516), 4 states have internal predecessors, (516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 04:09:47,174 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 129.0) internal successors, (516), 4 states have internal predecessors, (516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 04:09:47,174 INFO L185 Difference]: Start difference. First operand has 51 places, 101 transitions, 288 flow. Second operand 3 states and 367 transitions. [2021-04-29 04:09:47,175 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 95 transitions, 278 flow [2021-04-29 04:09:47,176 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 95 transitions, 277 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-29 04:09:47,178 INFO L241 Difference]: Finished difference. Result has 52 places, 95 transitions, 271 flow [2021-04-29 04:09:47,178 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=129, PETRI_DIFFERENCE_MINUEND_FLOW=269, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=271, PETRI_PLACES=52, PETRI_TRANSITIONS=95} [2021-04-29 04:09:47,179 INFO L343 CegarLoopForPetriNet]: 65 programPoint places, -13 predicate places. [2021-04-29 04:09:47,179 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 04:09:47,179 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 52 places, 95 transitions, 271 flow [2021-04-29 04:09:47,179 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 52 places, 95 transitions, 271 flow [2021-04-29 04:09:47,180 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 52 places, 95 transitions, 271 flow [2021-04-29 04:09:47,223 INFO L129 PetriNetUnfolder]: 393/606 cut-off events. [2021-04-29 04:09:47,224 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 04:09:47,225 INFO L84 FinitePrefix]: Finished finitePrefix Result has 621 conditions, 606 events. 393/606 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 2152 event pairs, 0 based on Foata normal form. 0/597 useless extension candidates. Maximal degree in co-relation 614. Up to 140 conditions per place. [2021-04-29 04:09:47,231 INFO L146 LiptonReduction]: Number of co-enabled transitions 2288 [2021-04-29 04:09:47,256 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 04:09:47,257 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 04:09:47,257 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 78 [2021-04-29 04:09:47,260 INFO L480 AbstractCegarLoop]: Abstraction has has 52 places, 95 transitions, 271 flow [2021-04-29 04:09:47,260 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 04:09:47,260 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 04:09:47,261 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] [2021-04-29 04:09:47,261 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-04-29 04:09:47,261 INFO L428 AbstractCegarLoop]: === Iteration 5 === [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]=== [2021-04-29 04:09:47,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 04:09:47,262 INFO L82 PathProgramCache]: Analyzing trace with hash 1488044789, now seen corresponding path program 1 times [2021-04-29 04:09:47,262 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 04:09:47,262 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292429688] [2021-04-29 04:09:47,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 04:09:47,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 04:09:47,316 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 04:09:47,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 04:09:47,321 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 04:09:47,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 04:09:47,328 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 04:09:47,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 04:09:47,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 04:09:47,329 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [292429688] [2021-04-29 04:09:47,329 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 04:09:47,330 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-29 04:09:47,330 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328642848] [2021-04-29 04:09:47,332 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 04:09:47,332 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 04:09:47,333 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 04:09:47,333 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 04:09:47,334 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 129 [2021-04-29 04:09:47,335 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 95 transitions, 271 flow. Second operand has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 04:09:47,335 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 04:09:47,335 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 129 [2021-04-29 04:09:47,335 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 04:09:47,394 INFO L129 PetriNetUnfolder]: 309/501 cut-off events. [2021-04-29 04:09:47,394 INFO L130 PetriNetUnfolder]: For 72/72 co-relation queries the response was YES. [2021-04-29 04:09:47,396 INFO L84 FinitePrefix]: Finished finitePrefix Result has 575 conditions, 501 events. 309/501 cut-off events. For 72/72 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 2054 event pairs, 0 based on Foata normal form. 15/507 useless extension candidates. Maximal degree in co-relation 567. Up to 105 conditions per place. [2021-04-29 04:09:47,399 INFO L132 encePairwiseOnDemand]: 125/129 looper letters, 6 selfloop transitions, 1 changer transitions 0/92 dead transitions. [2021-04-29 04:09:47,399 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 92 transitions, 276 flow [2021-04-29 04:09:47,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 04:09:47,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 04:09:47,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 367 transitions. [2021-04-29 04:09:47,401 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9483204134366925 [2021-04-29 04:09:47,401 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 367 transitions. [2021-04-29 04:09:47,401 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 367 transitions. [2021-04-29 04:09:47,402 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 04:09:47,402 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 367 transitions. [2021-04-29 04:09:47,403 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 122.33333333333333) internal successors, (367), 3 states have internal predecessors, (367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 04:09:47,405 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 129.0) internal successors, (516), 4 states have internal predecessors, (516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 04:09:47,405 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 129.0) internal successors, (516), 4 states have internal predecessors, (516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 04:09:47,405 INFO L185 Difference]: Start difference. First operand has 52 places, 95 transitions, 271 flow. Second operand 3 states and 367 transitions. [2021-04-29 04:09:47,406 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 92 transitions, 276 flow [2021-04-29 04:09:47,407 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 92 transitions, 275 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-29 04:09:47,410 INFO L241 Difference]: Finished difference. Result has 53 places, 92 transitions, 263 flow [2021-04-29 04:09:47,410 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=129, PETRI_DIFFERENCE_MINUEND_FLOW=261, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=263, PETRI_PLACES=53, PETRI_TRANSITIONS=92} [2021-04-29 04:09:47,411 INFO L343 CegarLoopForPetriNet]: 65 programPoint places, -12 predicate places. [2021-04-29 04:09:47,411 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 04:09:47,411 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 53 places, 92 transitions, 263 flow [2021-04-29 04:09:47,411 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 53 places, 92 transitions, 263 flow [2021-04-29 04:09:47,412 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 53 places, 92 transitions, 263 flow [2021-04-29 04:09:47,449 INFO L129 PetriNetUnfolder]: 309/501 cut-off events. [2021-04-29 04:09:47,449 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 04:09:47,451 INFO L84 FinitePrefix]: Finished finitePrefix Result has 517 conditions, 501 events. 309/501 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 1811 event pairs, 0 based on Foata normal form. 0/492 useless extension candidates. Maximal degree in co-relation 510. Up to 105 conditions per place. [2021-04-29 04:09:47,455 INFO L146 LiptonReduction]: Number of co-enabled transitions 2192 [2021-04-29 04:09:47,464 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 04:09:47,465 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 04:09:47,465 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 54 [2021-04-29 04:09:47,472 INFO L480 AbstractCegarLoop]: Abstraction has has 53 places, 92 transitions, 263 flow [2021-04-29 04:09:47,472 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 04:09:47,472 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 04:09:47,473 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] [2021-04-29 04:09:47,473 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-04-29 04:09:47,473 INFO L428 AbstractCegarLoop]: === Iteration 6 === [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]=== [2021-04-29 04:09:47,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 04:09:47,474 INFO L82 PathProgramCache]: Analyzing trace with hash -701484911, now seen corresponding path program 1 times [2021-04-29 04:09:47,475 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 04:09:47,475 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328042978] [2021-04-29 04:09:47,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 04:09:47,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 04:09:47,509 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 04:09:47,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 04:09:47,516 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 04:09:47,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 04:09:47,522 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 04:09:47,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 04:09:47,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 04:09:47,525 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328042978] [2021-04-29 04:09:47,525 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 04:09:47,525 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-29 04:09:47,525 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474531140] [2021-04-29 04:09:47,526 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 04:09:47,526 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 04:09:47,527 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 04:09:47,527 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 04:09:47,528 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 129 [2021-04-29 04:09:47,529 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 92 transitions, 263 flow. Second operand has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 04:09:47,529 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 04:09:47,529 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 129 [2021-04-29 04:09:47,529 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 04:09:47,562 INFO L129 PetriNetUnfolder]: 76/169 cut-off events. [2021-04-29 04:09:47,562 INFO L130 PetriNetUnfolder]: For 57/57 co-relation queries the response was YES. [2021-04-29 04:09:47,563 INFO L84 FinitePrefix]: Finished finitePrefix Result has 196 conditions, 169 events. 76/169 cut-off events. For 57/57 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 518 event pairs, 0 based on Foata normal form. 48/208 useless extension candidates. Maximal degree in co-relation 188. Up to 30 conditions per place. [2021-04-29 04:09:47,564 INFO L132 encePairwiseOnDemand]: 121/129 looper letters, 2 selfloop transitions, 1 changer transitions 0/85 dead transitions. [2021-04-29 04:09:47,564 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 85 transitions, 248 flow [2021-04-29 04:09:47,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 04:09:47,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 04:09:47,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 367 transitions. [2021-04-29 04:09:47,566 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9483204134366925 [2021-04-29 04:09:47,567 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 367 transitions. [2021-04-29 04:09:47,567 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 367 transitions. [2021-04-29 04:09:47,567 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 04:09:47,567 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 367 transitions. [2021-04-29 04:09:47,568 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 122.33333333333333) internal successors, (367), 3 states have internal predecessors, (367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 04:09:47,570 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 129.0) internal successors, (516), 4 states have internal predecessors, (516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 04:09:47,570 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 129.0) internal successors, (516), 4 states have internal predecessors, (516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 04:09:47,571 INFO L185 Difference]: Start difference. First operand has 53 places, 92 transitions, 263 flow. Second operand 3 states and 367 transitions. [2021-04-29 04:09:47,571 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 85 transitions, 248 flow [2021-04-29 04:09:47,572 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 85 transitions, 247 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-29 04:09:47,574 INFO L241 Difference]: Finished difference. Result has 54 places, 85 transitions, 243 flow [2021-04-29 04:09:47,574 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=129, PETRI_DIFFERENCE_MINUEND_FLOW=241, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=243, PETRI_PLACES=54, PETRI_TRANSITIONS=85} [2021-04-29 04:09:47,574 INFO L343 CegarLoopForPetriNet]: 65 programPoint places, -11 predicate places. [2021-04-29 04:09:47,574 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 04:09:47,574 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 54 places, 85 transitions, 243 flow [2021-04-29 04:09:47,575 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 54 places, 85 transitions, 243 flow [2021-04-29 04:09:47,575 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 54 places, 85 transitions, 243 flow [2021-04-29 04:09:47,588 INFO L129 PetriNetUnfolder]: 76/169 cut-off events. [2021-04-29 04:09:47,588 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 04:09:47,589 INFO L84 FinitePrefix]: Finished finitePrefix Result has 186 conditions, 169 events. 76/169 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 484 event pairs, 0 based on Foata normal form. 0/160 useless extension candidates. Maximal degree in co-relation 179. Up to 30 conditions per place. [2021-04-29 04:09:47,590 INFO L146 LiptonReduction]: Number of co-enabled transitions 1456 [2021-04-29 04:09:47,598 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 04:09:47,598 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 04:09:47,598 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 24 [2021-04-29 04:09:47,603 INFO L480 AbstractCegarLoop]: Abstraction has has 54 places, 85 transitions, 243 flow [2021-04-29 04:09:47,603 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 04:09:47,604 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 04:09:47,604 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] [2021-04-29 04:09:47,604 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-04-29 04:09:47,604 INFO L428 AbstractCegarLoop]: === Iteration 7 === [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]=== [2021-04-29 04:09:47,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 04:09:47,605 INFO L82 PathProgramCache]: Analyzing trace with hash 747877293, now seen corresponding path program 1 times [2021-04-29 04:09:47,605 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 04:09:47,605 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007614034] [2021-04-29 04:09:47,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 04:09:47,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 04:09:47,644 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 04:09:47,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 04:09:47,646 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 04:09:47,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 04:09:47,651 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 04:09:47,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 04:09:47,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 04:09:47,654 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2007614034] [2021-04-29 04:09:47,654 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 04:09:47,654 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-29 04:09:47,654 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246842725] [2021-04-29 04:09:47,655 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 04:09:47,655 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 04:09:47,656 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 04:09:47,656 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 04:09:47,657 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 129 [2021-04-29 04:09:47,658 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 85 transitions, 243 flow. Second operand has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 04:09:47,658 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 04:09:47,658 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 129 [2021-04-29 04:09:47,658 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 04:09:47,675 INFO L129 PetriNetUnfolder]: 10/57 cut-off events. [2021-04-29 04:09:47,676 INFO L130 PetriNetUnfolder]: For 19/19 co-relation queries the response was YES. [2021-04-29 04:09:47,676 INFO L84 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 57 events. 10/57 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 96 event pairs, 0 based on Foata normal form. 18/66 useless extension candidates. Maximal degree in co-relation 69. Up to 8 conditions per place. [2021-04-29 04:09:47,676 INFO L132 encePairwiseOnDemand]: 120/129 looper letters, 1 selfloop transitions, 1 changer transitions 2/51 dead transitions. [2021-04-29 04:09:47,677 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 51 transitions, 145 flow [2021-04-29 04:09:47,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 04:09:47,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 04:09:47,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 367 transitions. [2021-04-29 04:09:47,679 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9483204134366925 [2021-04-29 04:09:47,679 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 367 transitions. [2021-04-29 04:09:47,679 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 367 transitions. [2021-04-29 04:09:47,679 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 04:09:47,679 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 367 transitions. [2021-04-29 04:09:47,682 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 122.33333333333333) internal successors, (367), 3 states have internal predecessors, (367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 04:09:47,683 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 129.0) internal successors, (516), 4 states have internal predecessors, (516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 04:09:47,683 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 129.0) internal successors, (516), 4 states have internal predecessors, (516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 04:09:47,683 INFO L185 Difference]: Start difference. First operand has 54 places, 85 transitions, 243 flow. Second operand 3 states and 367 transitions. [2021-04-29 04:09:47,683 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 51 transitions, 145 flow [2021-04-29 04:09:47,685 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 51 transitions, 144 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-29 04:09:47,686 INFO L241 Difference]: Finished difference. Result has 55 places, 49 transitions, 138 flow [2021-04-29 04:09:47,686 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=129, PETRI_DIFFERENCE_MINUEND_FLOW=140, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=138, PETRI_PLACES=55, PETRI_TRANSITIONS=49} [2021-04-29 04:09:47,686 INFO L343 CegarLoopForPetriNet]: 65 programPoint places, -10 predicate places. [2021-04-29 04:09:47,686 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 04:09:47,687 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 55 places, 49 transitions, 138 flow [2021-04-29 04:09:47,687 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 55 places, 49 transitions, 138 flow [2021-04-29 04:09:47,688 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 53 places, 49 transitions, 138 flow [2021-04-29 04:09:47,693 INFO L129 PetriNetUnfolder]: 10/55 cut-off events. [2021-04-29 04:09:47,693 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 04:09:47,694 INFO L84 FinitePrefix]: Finished finitePrefix Result has 73 conditions, 55 events. 10/55 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 98 event pairs, 0 based on Foata normal form. 0/48 useless extension candidates. Maximal degree in co-relation 66. Up to 8 conditions per place. [2021-04-29 04:09:47,695 INFO L146 LiptonReduction]: Number of co-enabled transitions 802 [2021-04-29 04:09:47,698 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 04:09:47,698 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 04:09:47,699 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 13 [2021-04-29 04:09:47,701 INFO L480 AbstractCegarLoop]: Abstraction has has 53 places, 49 transitions, 138 flow [2021-04-29 04:09:47,702 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 04:09:47,702 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 04:09:47,702 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] [2021-04-29 04:09:47,702 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-04-29 04:09:47,702 INFO L428 AbstractCegarLoop]: === Iteration 8 === [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]=== [2021-04-29 04:09:47,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 04:09:47,703 INFO L82 PathProgramCache]: Analyzing trace with hash -335430047, now seen corresponding path program 1 times [2021-04-29 04:09:47,703 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 04:09:47,703 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368658148] [2021-04-29 04:09:47,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 04:09:47,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 04:09:47,858 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 04:09:47,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 04:09:47,869 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 04:09:47,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 04:09:47,885 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-04-29 04:09:47,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-29 04:09:47,919 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-04-29 04:09:47,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-04-29 04:09:47,966 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-04-29 04:09:47,969 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-04-29 04:09:48,038 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-04-29 04:09:48,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-04-29 04:09:48,118 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-04-29 04:09:48,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-04-29 04:09:48,209 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.7 percent of original size [2021-04-29 04:09:48,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-04-29 04:09:48,304 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-04-29 04:09:48,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-04-29 04:09:48,371 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-04-29 04:09:48,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-04-29 04:09:48,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 04:09:48,428 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368658148] [2021-04-29 04:09:48,428 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 04:09:48,428 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-04-29 04:09:48,429 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729796167] [2021-04-29 04:09:48,429 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-04-29 04:09:48,429 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 04:09:48,430 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-04-29 04:09:48,432 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-04-29 04:09:48,434 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 129 [2021-04-29 04:09:48,436 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 49 transitions, 138 flow. Second operand has 11 states, 11 states have (on average 109.9090909090909) internal successors, (1209), 11 states have internal predecessors, (1209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 04:09:48,436 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 04:09:48,436 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 129 [2021-04-29 04:09:48,437 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 04:09:58,488 INFO L129 PetriNetUnfolder]: 68891/97220 cut-off events. [2021-04-29 04:09:58,489 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 04:09:58,947 INFO L84 FinitePrefix]: Finished finitePrefix Result has 178951 conditions, 97220 events. 68891/97220 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8362. Compared 774814 event pairs, 11665 based on Foata normal form. 1/62824 useless extension candidates. Maximal degree in co-relation 178943. Up to 31105 conditions per place. [2021-04-29 04:09:59,223 INFO L132 encePairwiseOnDemand]: 112/129 looper letters, 72 selfloop transitions, 16 changer transitions 0/120 dead transitions. [2021-04-29 04:09:59,223 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 120 transitions, 456 flow [2021-04-29 04:09:59,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-04-29 04:09:59,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-04-29 04:09:59,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1288 transitions. [2021-04-29 04:09:59,228 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9076814658210007 [2021-04-29 04:09:59,228 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1288 transitions. [2021-04-29 04:09:59,228 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1288 transitions. [2021-04-29 04:09:59,229 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 04:09:59,230 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1288 transitions. [2021-04-29 04:09:59,233 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 117.0909090909091) internal successors, (1288), 11 states have internal predecessors, (1288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 04:09:59,237 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 129.0) internal successors, (1548), 12 states have internal predecessors, (1548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 04:09:59,238 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 129.0) internal successors, (1548), 12 states have internal predecessors, (1548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 04:09:59,238 INFO L185 Difference]: Start difference. First operand has 53 places, 49 transitions, 138 flow. Second operand 11 states and 1288 transitions. [2021-04-29 04:09:59,238 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 120 transitions, 456 flow [2021-04-29 04:09:59,242 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 120 transitions, 455 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-29 04:09:59,244 INFO L241 Difference]: Finished difference. Result has 71 places, 63 transitions, 257 flow [2021-04-29 04:09:59,244 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=129, PETRI_DIFFERENCE_MINUEND_FLOW=137, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=257, PETRI_PLACES=71, PETRI_TRANSITIONS=63} [2021-04-29 04:09:59,244 INFO L343 CegarLoopForPetriNet]: 65 programPoint places, 6 predicate places. [2021-04-29 04:09:59,245 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 04:09:59,245 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 71 places, 63 transitions, 257 flow [2021-04-29 04:09:59,245 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 71 places, 63 transitions, 257 flow [2021-04-29 04:09:59,246 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 71 places, 63 transitions, 257 flow [2021-04-29 04:09:59,396 INFO L129 PetriNetUnfolder]: 490/1901 cut-off events. [2021-04-29 04:09:59,396 INFO L130 PetriNetUnfolder]: For 343/343 co-relation queries the response was YES. [2021-04-29 04:09:59,406 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3100 conditions, 1901 events. 490/1901 cut-off events. For 343/343 co-relation queries the response was YES. Maximal size of possible extension queue 645. Compared 21410 event pairs, 0 based on Foata normal form. 0/1350 useless extension candidates. Maximal degree in co-relation 3084. Up to 342 conditions per place. [2021-04-29 04:09:59,441 INFO L146 LiptonReduction]: Number of co-enabled transitions 1320 [2021-04-29 04:09:59,446 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 04:09:59,446 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 04:09:59,446 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 201 [2021-04-29 04:09:59,448 INFO L480 AbstractCegarLoop]: Abstraction has has 71 places, 63 transitions, 257 flow [2021-04-29 04:09:59,449 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 109.9090909090909) internal successors, (1209), 11 states have internal predecessors, (1209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 04:09:59,449 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 04:09:59,449 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] [2021-04-29 04:09:59,449 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-04-29 04:09:59,449 INFO L428 AbstractCegarLoop]: === Iteration 9 === [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]=== [2021-04-29 04:09:59,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 04:09:59,450 INFO L82 PathProgramCache]: Analyzing trace with hash -278384093, now seen corresponding path program 2 times [2021-04-29 04:09:59,450 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 04:09:59,450 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426127826] [2021-04-29 04:09:59,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 04:09:59,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 04:09:59,548 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 04:09:59,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 04:09:59,549 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 04:09:59,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 04:09:59,556 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 04:09:59,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-29 04:09:59,570 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-04-29 04:09:59,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-29 04:09:59,596 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-04-29 04:09:59,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-04-29 04:09:59,629 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-04-29 04:09:59,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-04-29 04:09:59,667 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-04-29 04:09:59,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-04-29 04:09:59,707 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-04-29 04:09:59,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-29 04:09:59,761 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-04-29 04:09:59,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-29 04:09:59,832 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-04-29 04:09:59,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-04-29 04:09:59,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 04:09:59,885 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426127826] [2021-04-29 04:09:59,885 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 04:09:59,885 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-04-29 04:09:59,886 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003287268] [2021-04-29 04:09:59,886 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-04-29 04:09:59,886 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 04:09:59,887 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-04-29 04:09:59,887 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-04-29 04:09:59,890 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 129 [2021-04-29 04:09:59,891 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 63 transitions, 257 flow. Second operand has 11 states, 11 states have (on average 109.9090909090909) internal successors, (1209), 11 states have internal predecessors, (1209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 04:09:59,891 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 04:09:59,891 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 129 [2021-04-29 04:09:59,892 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 04:10:19,383 INFO L129 PetriNetUnfolder]: 106861/167455 cut-off events. [2021-04-29 04:10:19,383 INFO L130 PetriNetUnfolder]: For 95502/95702 co-relation queries the response was YES. [2021-04-29 04:10:20,261 INFO L84 FinitePrefix]: Finished finitePrefix Result has 433717 conditions, 167455 events. 106861/167455 cut-off events. For 95502/95702 co-relation queries the response was YES. Maximal size of possible extension queue 14539. Compared 1659871 event pairs, 17349 based on Foata normal form. 1/113129 useless extension candidates. Maximal degree in co-relation 433700. Up to 54220 conditions per place. [2021-04-29 04:10:20,460 INFO L132 encePairwiseOnDemand]: 112/129 looper letters, 107 selfloop transitions, 30 changer transitions 0/169 dead transitions. [2021-04-29 04:10:20,461 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 169 transitions, 1037 flow [2021-04-29 04:10:20,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-04-29 04:10:20,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-04-29 04:10:20,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1290 transitions. [2021-04-29 04:10:20,466 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9090909090909091 [2021-04-29 04:10:20,466 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1290 transitions. [2021-04-29 04:10:20,466 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1290 transitions. [2021-04-29 04:10:20,467 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 04:10:20,467 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1290 transitions. [2021-04-29 04:10:20,470 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 117.27272727272727) internal successors, (1290), 11 states have internal predecessors, (1290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 04:10:20,474 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 129.0) internal successors, (1548), 12 states have internal predecessors, (1548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 04:10:20,475 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 129.0) internal successors, (1548), 12 states have internal predecessors, (1548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 04:10:20,476 INFO L185 Difference]: Start difference. First operand has 71 places, 63 transitions, 257 flow. Second operand 11 states and 1290 transitions. [2021-04-29 04:10:20,476 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 169 transitions, 1037 flow [2021-04-29 04:10:20,585 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 169 transitions, 1019 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-29 04:10:20,592 INFO L241 Difference]: Finished difference. Result has 89 places, 89 transitions, 553 flow [2021-04-29 04:10:20,593 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=129, PETRI_DIFFERENCE_MINUEND_FLOW=255, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=553, PETRI_PLACES=89, PETRI_TRANSITIONS=89} [2021-04-29 04:10:20,593 INFO L343 CegarLoopForPetriNet]: 65 programPoint places, 24 predicate places. [2021-04-29 04:10:20,593 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 04:10:20,594 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 89 places, 89 transitions, 553 flow [2021-04-29 04:10:20,594 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 89 places, 89 transitions, 553 flow [2021-04-29 04:10:20,595 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 89 places, 89 transitions, 553 flow [2021-04-29 04:10:21,529 INFO L129 PetriNetUnfolder]: 1690/6440 cut-off events. [2021-04-29 04:10:21,530 INFO L130 PetriNetUnfolder]: For 3874/4802 co-relation queries the response was YES. [2021-04-29 04:10:21,562 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13000 conditions, 6440 events. 1690/6440 cut-off events. For 3874/4802 co-relation queries the response was YES. Maximal size of possible extension queue 1822. Compared 88900 event pairs, 0 based on Foata normal form. 0/4612 useless extension candidates. Maximal degree in co-relation 12975. Up to 1182 conditions per place. [2021-04-29 04:10:21,675 INFO L146 LiptonReduction]: Number of co-enabled transitions 2172 [2021-04-29 04:10:21,685 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 04:10:21,685 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 04:10:21,685 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1092 [2021-04-29 04:10:21,687 INFO L480 AbstractCegarLoop]: Abstraction has has 89 places, 89 transitions, 553 flow [2021-04-29 04:10:21,688 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 109.9090909090909) internal successors, (1209), 11 states have internal predecessors, (1209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 04:10:21,688 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 04:10:21,688 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] [2021-04-29 04:10:21,688 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-04-29 04:10:21,689 INFO L428 AbstractCegarLoop]: === Iteration 10 === [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]=== [2021-04-29 04:10:21,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 04:10:21,689 INFO L82 PathProgramCache]: Analyzing trace with hash 779726127, now seen corresponding path program 3 times [2021-04-29 04:10:21,689 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 04:10:21,690 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15174503] [2021-04-29 04:10:21,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 04:10:21,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 04:10:21,746 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 04:10:21,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 04:10:21,747 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 04:10:21,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 04:10:21,753 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 04:10:21,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-29 04:10:21,763 INFO L142 QuantifierPusher]: treesize reduction 9, result has 70.0 percent of original size [2021-04-29 04:10:21,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-29 04:10:21,779 INFO L142 QuantifierPusher]: treesize reduction 18, result has 61.7 percent of original size [2021-04-29 04:10:21,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-04-29 04:10:21,802 INFO L142 QuantifierPusher]: treesize reduction 27, result has 57.8 percent of original size [2021-04-29 04:10:21,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-04-29 04:10:21,831 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-04-29 04:10:21,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-04-29 04:10:21,872 INFO L142 QuantifierPusher]: treesize reduction 54, result has 50.5 percent of original size [2021-04-29 04:10:21,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-04-29 04:10:21,921 INFO L142 QuantifierPusher]: treesize reduction 63, result has 50.0 percent of original size [2021-04-29 04:10:21,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-04-29 04:10:21,981 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-04-29 04:10:21,983 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-04-29 04:10:22,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 04:10:22,035 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15174503] [2021-04-29 04:10:22,035 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 04:10:22,036 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-04-29 04:10:22,036 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963981131] [2021-04-29 04:10:22,036 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-04-29 04:10:22,036 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 04:10:22,037 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-04-29 04:10:22,037 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-04-29 04:10:22,039 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 129 [2021-04-29 04:10:22,041 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 89 transitions, 553 flow. Second operand has 11 states, 11 states have (on average 109.9090909090909) internal successors, (1209), 11 states have internal predecessors, (1209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 04:10:22,041 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 04:10:22,041 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 129 [2021-04-29 04:10:22,041 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 04:10:58,216 INFO L129 PetriNetUnfolder]: 142185/225821 cut-off events. [2021-04-29 04:10:58,216 INFO L130 PetriNetUnfolder]: For 338144/340672 co-relation queries the response was YES. [2021-04-29 04:10:59,797 INFO L84 FinitePrefix]: Finished finitePrefix Result has 765225 conditions, 225821 events. 142185/225821 cut-off events. For 338144/340672 co-relation queries the response was YES. Maximal size of possible extension queue 21501. Compared 2419215 event pairs, 16855 based on Foata normal form. 1/151184 useless extension candidates. Maximal degree in co-relation 765199. Up to 75463 conditions per place. [2021-04-29 04:11:00,534 INFO L132 encePairwiseOnDemand]: 112/129 looper letters, 97 selfloop transitions, 52 changer transitions 0/181 dead transitions. [2021-04-29 04:11:00,534 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 181 transitions, 1457 flow [2021-04-29 04:11:00,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-04-29 04:11:00,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-04-29 04:11:00,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1290 transitions. [2021-04-29 04:11:00,548 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9090909090909091 [2021-04-29 04:11:00,548 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1290 transitions. [2021-04-29 04:11:00,559 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1290 transitions. [2021-04-29 04:11:00,561 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 04:11:00,561 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1290 transitions. [2021-04-29 04:11:00,570 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 117.27272727272727) internal successors, (1290), 11 states have internal predecessors, (1290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 04:11:00,579 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 129.0) internal successors, (1548), 12 states have internal predecessors, (1548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 04:11:00,581 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 129.0) internal successors, (1548), 12 states have internal predecessors, (1548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 04:11:00,581 INFO L185 Difference]: Start difference. First operand has 89 places, 89 transitions, 553 flow. Second operand 11 states and 1290 transitions. [2021-04-29 04:11:00,582 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 181 transitions, 1457 flow [2021-04-29 04:11:26,229 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 181 transitions, 1437 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-29 04:11:26,233 INFO L241 Difference]: Finished difference. Result has 107 places, 113 transitions, 963 flow [2021-04-29 04:11:26,233 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=129, PETRI_DIFFERENCE_MINUEND_FLOW=549, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=963, PETRI_PLACES=107, PETRI_TRANSITIONS=113} [2021-04-29 04:11:26,233 INFO L343 CegarLoopForPetriNet]: 65 programPoint places, 42 predicate places. [2021-04-29 04:11:26,233 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 04:11:26,234 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 107 places, 113 transitions, 963 flow [2021-04-29 04:11:26,234 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 107 places, 113 transitions, 963 flow [2021-04-29 04:11:26,235 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 107 places, 113 transitions, 963 flow [2021-04-29 04:11:26,948 INFO L129 PetriNetUnfolder]: 2410/9514 cut-off events. [2021-04-29 04:11:26,948 INFO L130 PetriNetUnfolder]: For 11557/13693 co-relation queries the response was YES. [2021-04-29 04:11:27,037 INFO L84 FinitePrefix]: Finished finitePrefix Result has 23878 conditions, 9514 events. 2410/9514 cut-off events. For 11557/13693 co-relation queries the response was YES. Maximal size of possible extension queue 2865. Compared 142779 event pairs, 0 based on Foata normal form. 0/6675 useless extension candidates. Maximal degree in co-relation 23844. Up to 1686 conditions per place. [2021-04-29 04:11:27,190 INFO L146 LiptonReduction]: Number of co-enabled transitions 2996 [2021-04-29 04:11:27,201 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 04:11:27,201 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 04:11:27,201 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 968 [2021-04-29 04:11:27,204 INFO L480 AbstractCegarLoop]: Abstraction has has 107 places, 113 transitions, 963 flow [2021-04-29 04:11:27,205 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 109.9090909090909) internal successors, (1209), 11 states have internal predecessors, (1209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 04:11:27,205 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 04:11:27,205 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] [2021-04-29 04:11:27,205 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-04-29 04:11:27,205 INFO L428 AbstractCegarLoop]: === Iteration 11 === [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]=== [2021-04-29 04:11:27,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 04:11:27,206 INFO L82 PathProgramCache]: Analyzing trace with hash 576512525, now seen corresponding path program 4 times [2021-04-29 04:11:27,206 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 04:11:27,206 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462506778] [2021-04-29 04:11:27,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 04:11:27,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 04:11:27,306 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 04:11:27,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 04:11:27,307 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 04:11:27,310 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 04:11:27,317 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 04:11:27,317 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-29 04:11:27,325 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 04:11:27,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-29 04:11:27,338 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-04-29 04:11:27,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-04-29 04:11:27,356 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-04-29 04:11:27,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-04-29 04:11:27,385 INFO L142 QuantifierPusher]: treesize reduction 27, result has 61.4 percent of original size [2021-04-29 04:11:27,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-04-29 04:11:27,420 INFO L142 QuantifierPusher]: treesize reduction 45, result has 54.1 percent of original size [2021-04-29 04:11:27,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-29 04:11:27,477 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-04-29 04:11:27,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-29 04:11:27,534 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-04-29 04:11:27,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-04-29 04:11:27,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 04:11:27,587 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1462506778] [2021-04-29 04:11:27,587 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 04:11:27,588 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-04-29 04:11:27,588 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573853582] [2021-04-29 04:11:27,588 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-04-29 04:11:27,588 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 04:11:27,589 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-04-29 04:11:27,589 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-04-29 04:11:27,590 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 129 [2021-04-29 04:11:27,592 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 113 transitions, 963 flow. Second operand has 11 states, 11 states have (on average 109.9090909090909) internal successors, (1209), 11 states have internal predecessors, (1209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 04:11:27,592 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 04:11:27,592 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 129 [2021-04-29 04:11:27,592 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 04:12:38,820 INFO L129 PetriNetUnfolder]: 206991/344913 cut-off events. [2021-04-29 04:12:38,821 INFO L130 PetriNetUnfolder]: For 1039306/1044730 co-relation queries the response was YES. [2021-04-29 04:12:42,356 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1442455 conditions, 344913 events. 206991/344913 cut-off events. For 1039306/1044730 co-relation queries the response was YES. Maximal size of possible extension queue 36171. Compared 4152667 event pairs, 34837 based on Foata normal form. 1/232463 useless extension candidates. Maximal degree in co-relation 1442420. Up to 118861 conditions per place. [2021-04-29 04:12:42,861 INFO L132 encePairwiseOnDemand]: 112/129 looper letters, 219 selfloop transitions, 47 changer transitions 0/298 dead transitions. [2021-04-29 04:12:42,861 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 298 transitions, 3373 flow [2021-04-29 04:12:42,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-04-29 04:12:42,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-04-29 04:12:42,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1289 transitions. [2021-04-29 04:12:42,865 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9083861874559549 [2021-04-29 04:12:42,865 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1289 transitions. [2021-04-29 04:12:42,865 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1289 transitions. [2021-04-29 04:12:42,866 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 04:12:42,866 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1289 transitions. [2021-04-29 04:12:42,869 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 117.18181818181819) internal successors, (1289), 11 states have internal predecessors, (1289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 04:12:42,873 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 129.0) internal successors, (1548), 12 states have internal predecessors, (1548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 04:12:42,874 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 129.0) internal successors, (1548), 12 states have internal predecessors, (1548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 04:12:42,874 INFO L185 Difference]: Start difference. First operand has 107 places, 113 transitions, 963 flow. Second operand 11 states and 1289 transitions. [2021-04-29 04:12:42,874 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 298 transitions, 3373 flow [2021-04-29 04:13:24,759 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 298 transitions, 3197 flow, removed 70 selfloop flow, removed 1 redundant places. [2021-04-29 04:13:24,765 INFO L241 Difference]: Finished difference. Result has 125 places, 148 transitions, 1481 flow [2021-04-29 04:13:24,766 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=129, PETRI_DIFFERENCE_MINUEND_FLOW=907, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1481, PETRI_PLACES=125, PETRI_TRANSITIONS=148} [2021-04-29 04:13:24,766 INFO L343 CegarLoopForPetriNet]: 65 programPoint places, 60 predicate places. [2021-04-29 04:13:24,766 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 04:13:24,766 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 125 places, 148 transitions, 1481 flow [2021-04-29 04:13:24,767 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 125 places, 148 transitions, 1481 flow [2021-04-29 04:13:24,768 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 125 places, 148 transitions, 1481 flow [2021-04-29 04:13:27,859 INFO L129 PetriNetUnfolder]: 7342/26320 cut-off events. [2021-04-29 04:13:27,859 INFO L130 PetriNetUnfolder]: For 35619/38511 co-relation queries the response was YES. [2021-04-29 04:13:28,087 INFO L84 FinitePrefix]: Finished finitePrefix Result has 63440 conditions, 26320 events. 7342/26320 cut-off events. For 35619/38511 co-relation queries the response was YES. Maximal size of possible extension queue 6253. Compared 436352 event pairs, 0 based on Foata normal form. 0/19276 useless extension candidates. Maximal degree in co-relation 63397. Up to 5354 conditions per place. [2021-04-29 04:13:28,379 INFO L146 LiptonReduction]: Number of co-enabled transitions 4040 [2021-04-29 04:13:28,393 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 04:13:28,393 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 04:13:28,394 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 3628 [2021-04-29 04:13:28,395 INFO L480 AbstractCegarLoop]: Abstraction has has 125 places, 148 transitions, 1481 flow [2021-04-29 04:13:28,396 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 109.9090909090909) internal successors, (1209), 11 states have internal predecessors, (1209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 04:13:28,396 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 04:13:28,396 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] [2021-04-29 04:13:28,396 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-04-29 04:13:28,396 INFO L428 AbstractCegarLoop]: === Iteration 12 === [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]=== [2021-04-29 04:13:28,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 04:13:28,397 INFO L82 PathProgramCache]: Analyzing trace with hash -1710840015, now seen corresponding path program 5 times [2021-04-29 04:13:28,397 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 04:13:28,397 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070476177] [2021-04-29 04:13:28,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 04:13:28,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 04:13:28,437 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 04:13:28,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 04:13:28,438 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 04:13:28,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 04:13:28,443 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 04:13:28,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-29 04:13:28,457 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 04:13:28,457 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-29 04:13:28,473 INFO L142 QuantifierPusher]: treesize reduction 9, result has 75.0 percent of original size [2021-04-29 04:13:28,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-04-29 04:13:28,492 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-04-29 04:13:28,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-04-29 04:13:28,518 INFO L142 QuantifierPusher]: treesize reduction 36, result has 55.6 percent of original size [2021-04-29 04:13:28,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-04-29 04:13:28,555 INFO L142 QuantifierPusher]: treesize reduction 36, result has 58.6 percent of original size [2021-04-29 04:13:28,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-04-29 04:13:28,600 INFO L142 QuantifierPusher]: treesize reduction 54, result has 53.0 percent of original size [2021-04-29 04:13:28,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-04-29 04:13:28,653 INFO L142 QuantifierPusher]: treesize reduction 72, result has 47.4 percent of original size [2021-04-29 04:13:28,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-04-29 04:13:28,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 04:13:28,701 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070476177] [2021-04-29 04:13:28,701 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 04:13:28,701 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-04-29 04:13:28,701 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826363137] [2021-04-29 04:13:28,702 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-04-29 04:13:28,702 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 04:13:28,702 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-04-29 04:13:28,703 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-04-29 04:13:28,704 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 129 [2021-04-29 04:13:28,706 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 148 transitions, 1481 flow. Second operand has 11 states, 11 states have (on average 109.9090909090909) internal successors, (1209), 11 states have internal predecessors, (1209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 04:13:28,706 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 04:13:28,706 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 129 [2021-04-29 04:13:28,706 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 04:17:20,956 INFO L129 PetriNetUnfolder]: 357240/679056 cut-off events. [2021-04-29 04:17:20,957 INFO L130 PetriNetUnfolder]: For 1751551/1771612 co-relation queries the response was YES. [2021-04-29 04:17:32,685 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2367507 conditions, 679056 events. 357240/679056 cut-off events. For 1751551/1771612 co-relation queries the response was YES. Maximal size of possible extension queue 89787. Compared 10330743 event pairs, 79404 based on Foata normal form. 1/504097 useless extension candidates. Maximal degree in co-relation 2367463. Up to 145594 conditions per place. [2021-04-29 04:17:33,608 INFO L132 encePairwiseOnDemand]: 112/129 looper letters, 254 selfloop transitions, 69 changer transitions 14/369 dead transitions. [2021-04-29 04:17:33,609 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 369 transitions, 4673 flow [2021-04-29 04:17:33,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-04-29 04:17:33,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-04-29 04:17:33,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1295 transitions. [2021-04-29 04:17:33,632 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9126145172656801 [2021-04-29 04:17:33,632 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1295 transitions. [2021-04-29 04:17:33,632 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1295 transitions. [2021-04-29 04:17:33,633 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 04:17:33,633 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1295 transitions. [2021-04-29 04:17:33,643 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 117.72727272727273) internal successors, (1295), 11 states have internal predecessors, (1295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 04:17:33,651 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 129.0) internal successors, (1548), 12 states have internal predecessors, (1548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 04:17:33,654 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 129.0) internal successors, (1548), 12 states have internal predecessors, (1548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 04:17:33,654 INFO L185 Difference]: Start difference. First operand has 125 places, 148 transitions, 1481 flow. Second operand 11 states and 1295 transitions. [2021-04-29 04:17:33,654 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 369 transitions, 4673 flow Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown [2021-04-29 04:19:34,055 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-04-29 04:19:34,056 WARN L545 AbstractCegarLoop]: Verification canceled [2021-04-29 04:19:34,059 WARN L224 ceAbstractionStarter]: Timeout [2021-04-29 04:19:34,061 INFO L202 PluginConnector]: Adding new model example_9.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.04 04:19:34 BasicIcfg [2021-04-29 04:19:34,061 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-04-29 04:19:34,064 INFO L168 Benchmark]: Toolchain (without parser) took 590858.47 ms. Allocated memory was 302.0 MB in the beginning and 15.9 GB in the end (delta: 15.6 GB). Free memory was 271.1 MB in the beginning and 7.9 GB in the end (delta: -7.6 GB). Peak memory consumption was 8.6 GB. Max. memory is 16.0 GB. [2021-04-29 04:19:34,064 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.25 ms. Allocated memory is still 302.0 MB. Free memory is still 272.1 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-04-29 04:19:34,065 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.76 ms. Allocated memory is still 302.0 MB. Free memory was 285.3 MB in the beginning and 283.8 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-04-29 04:19:34,065 INFO L168 Benchmark]: Boogie Preprocessor took 18.77 ms. Allocated memory is still 302.0 MB. Free memory was 283.8 MB in the beginning and 282.9 MB in the end (delta: 918.2 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-04-29 04:19:34,068 INFO L168 Benchmark]: RCFGBuilder took 345.80 ms. Allocated memory is still 302.0 MB. Free memory was 282.7 MB in the beginning and 275.6 MB in the end (delta: 7.1 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.0 GB. [2021-04-29 04:19:34,070 INFO L168 Benchmark]: TraceAbstraction took 590397.74 ms. Allocated memory was 302.0 MB in the beginning and 15.9 GB in the end (delta: 15.6 GB). Free memory was 275.1 MB in the beginning and 7.9 GB in the end (delta: -7.6 GB). Peak memory consumption was 8.6 GB. Max. memory is 16.0 GB. [2021-04-29 04:19:34,072 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 0.25 ms. Allocated memory is still 302.0 MB. Free memory is still 272.1 MB. There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 34.76 ms. Allocated memory is still 302.0 MB. Free memory was 285.3 MB in the beginning and 283.8 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 18.77 ms. Allocated memory is still 302.0 MB. Free memory was 283.8 MB in the beginning and 282.9 MB in the end (delta: 918.2 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 345.80 ms. Allocated memory is still 302.0 MB. Free memory was 282.7 MB in the beginning and 275.6 MB in the end (delta: 7.1 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.0 GB. * TraceAbstraction took 590397.74 ms. Allocated memory was 302.0 MB in the beginning and 15.9 GB in the end (delta: 15.6 GB). Free memory was 275.1 MB in the beginning and 7.9 GB in the end (delta: -7.6 GB). Peak memory consumption was 8.6 GB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 549.5ms, 65 PlacesBefore, 65 PlacesAfterwards, 109 TransitionsBefore, 109 TransitionsAfterwards, 2736 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 9 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 9 TotalNumberOfCompositions, 756 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 756, positive: 756, positive conditional: 756, 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: 756, positive: 756, positive conditional: 0, positive unconditional: 756, 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: 756, positive: 756, positive conditional: 0, positive unconditional: 756, 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: 756, positive: 756, positive conditional: 0, positive unconditional: 756, 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: 756, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 756, unknown conditional: 756, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 756, Positive cache size: 756, Positive conditional cache size: 756, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 178.3ms, 49 PlacesBefore, 49 PlacesAfterwards, 104 TransitionsBefore, 104 TransitionsAfterwards, 2576 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): 756, Positive cache size: 756, Positive conditional cache size: 756, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 138.2ms, 50 PlacesBefore, 50 PlacesAfterwards, 103 TransitionsBefore, 103 TransitionsAfterwards, 2544 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): 756, Positive cache size: 756, Positive conditional cache size: 756, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 168.1ms, 51 PlacesBefore, 51 PlacesAfterwards, 101 TransitionsBefore, 101 TransitionsAfterwards, 2480 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): 756, Positive cache size: 756, Positive conditional cache size: 756, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 77.5ms, 52 PlacesBefore, 52 PlacesAfterwards, 95 TransitionsBefore, 95 TransitionsAfterwards, 2288 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): 756, Positive cache size: 756, Positive conditional cache size: 756, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 53.3ms, 53 PlacesBefore, 53 PlacesAfterwards, 92 TransitionsBefore, 92 TransitionsAfterwards, 2192 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): 756, Positive cache size: 756, Positive conditional cache size: 756, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 23.2ms, 54 PlacesBefore, 54 PlacesAfterwards, 85 TransitionsBefore, 85 TransitionsAfterwards, 1456 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): 756, Positive cache size: 756, Positive conditional cache size: 756, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 11.0ms, 55 PlacesBefore, 53 PlacesAfterwards, 49 TransitionsBefore, 49 TransitionsAfterwards, 802 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): 756, Positive cache size: 756, Positive conditional cache size: 756, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 200.9ms, 71 PlacesBefore, 71 PlacesAfterwards, 63 TransitionsBefore, 63 TransitionsAfterwards, 1320 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): 756, Positive cache size: 756, Positive conditional cache size: 756, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1091.5ms, 89 PlacesBefore, 89 PlacesAfterwards, 89 TransitionsBefore, 89 TransitionsAfterwards, 2172 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): 756, Positive cache size: 756, Positive conditional cache size: 756, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 967.4ms, 107 PlacesBefore, 107 PlacesAfterwards, 113 TransitionsBefore, 113 TransitionsAfterwards, 2996 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): 756, Positive cache size: 756, Positive conditional cache size: 756, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3626.8ms, 125 PlacesBefore, 125 PlacesAfterwards, 148 TransitionsBefore, 148 TransitionsAfterwards, 4040 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): 756, Positive cache size: 756, Positive conditional cache size: 756, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - TimeoutResultAtElement [Line: 31]: Timeout (TraceAbstraction) Unable to prove that assertion always holds (line 31). Cancelled while executing RemoveRedundantFlow. - StatisticsResult: Ultimate Automizer benchmark data CFG has 10 procedures, 49 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 231.3ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: TIMEOUT, OverallTime: 590072.6ms, OverallIterations: 12, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 579266.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1067.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 419 SDtfs, 403 SDslu, 382 SDs, 0 SdLazy, 638 SolverSat, 60 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1361.9ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 76 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 1775.2ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=1481occurred in iteration=11, InterpolantAutomatonStates: 65, 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: 42.4ms SsaConstructionTime, 171.8ms SatisfiabilityAnalysisTime, 2437.5ms InterpolantComputationTime, 336 NumberOfCodeBlocks, 336 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 324 ConstructedInterpolants, 0 QuantifiedInterpolants, 4776 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 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 !SESSION 2021-04-29 04:09:40.739 ----------------------------------------------- eclipse.buildId=unknown java.version=11.0.10 java.vendor=AdoptOpenJDK BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_GB Framework arguments: -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithPredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/mcr/example_9.bpl Command-line arguments: -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithPredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/mcr/example_9.bpl !ENTRY org.eclipse.osgi 4 0 2021-04-29 04:19:34.369 !MESSAGE Application error !STACK 1 org.eclipse.core.internal.resources.ResourceException(/)[568]: java.io.FileNotFoundException: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c3674247/.metadata/.plugins/org.eclipse.core.resources/.root/1.tree (No such file or directory) at java.base/java.io.FileOutputStream.open0(Native Method) at java.base/java.io.FileOutputStream.open(FileOutputStream.java:298) at java.base/java.io.FileOutputStream.(FileOutputStream.java:237) at java.base/java.io.FileOutputStream.(FileOutputStream.java:187) at org.eclipse.core.internal.localstore.SafeFileOutputStream.(SafeFileOutputStream.java:55) at org.eclipse.core.internal.resources.SaveManager.saveTree(SaveManager.java:1381) at org.eclipse.core.internal.resources.SaveManager.save(SaveManager.java:1168) at org.eclipse.core.internal.resources.Workspace.save(Workspace.java:2333) at org.eclipse.core.internal.resources.Workspace.save(Workspace.java:2322) at de.uni_freiburg.informatik.ultimate.core.coreplugin.UltimateCore.start(UltimateCore.java:191) at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:203) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:134) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:104) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:401) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:255) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.base/java.lang.reflect.Method.invoke(Method.java:566) at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:657) at org.eclipse.equinox.launcher.Main.basicRun(Main.java:594) at org.eclipse.equinox.launcher.Main.run(Main.java:1465) at org.eclipse.equinox.launcher.Main.main(Main.java:1438) An error has occurred. See the log file /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c3674247/.metadata/.log.