/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-RepeatedSemanticLbeWithDisjunctivePredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-proofs/counter-add-4-semi-Q67.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-26 17:36:02,786 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-26 17:36:02,787 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-26 17:36:02,821 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-26 17:36:02,822 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-26 17:36:02,824 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-26 17:36:02,827 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-26 17:36:02,834 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-26 17:36:02,836 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-26 17:36:02,841 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-26 17:36:02,842 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-26 17:36:02,843 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-26 17:36:02,844 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-26 17:36:02,845 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-26 17:36:02,847 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-26 17:36:02,848 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-26 17:36:02,851 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-26 17:36:02,852 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-26 17:36:02,854 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-26 17:36:02,862 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-26 17:36:02,863 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-26 17:36:02,866 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-26 17:36:02,867 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-26 17:36:02,867 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-26 17:36:02,869 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-26 17:36:02,871 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-26 17:36:02,872 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-26 17:36:02,873 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-26 17:36:02,873 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-26 17:36:02,874 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-26 17:36:02,874 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-26 17:36:02,875 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-26 17:36:02,875 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-26 17:36:02,875 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-26 17:36:02,879 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-26 17:36:02,880 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-26 17:36:02,884 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-RepeatedSemanticLbeWithDisjunctivePredicates.epf [2021-03-26 17:36:02,926 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-26 17:36:02,926 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-26 17:36:02,930 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-26 17:36:02,930 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-26 17:36:02,930 INFO L138 SettingsManager]: * Use SBE=true [2021-03-26 17:36:02,930 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-26 17:36:02,931 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-26 17:36:02,931 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-26 17:36:02,931 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-26 17:36:02,931 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-26 17:36:02,932 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-26 17:36:02,932 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-26 17:36:02,932 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-26 17:36:02,932 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-26 17:36:02,932 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-26 17:36:02,933 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-26 17:36:02,933 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-26 17:36:02,933 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-26 17:36:02,933 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-26 17:36:02,933 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-26 17:36:02,933 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-26 17:36:02,933 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-26 17:36:02,934 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-26 17:36:02,934 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-26 17:36:02,934 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-26 17:36:02,934 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-26 17:36:02,934 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-26 17:36:02,934 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES_DISJUNCTIVE [2021-03-26 17:36:02,934 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-26 17:36:02,935 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-03-26 17:36:02,935 INFO L138 SettingsManager]: * Apply repeated Lipton Reduction=true WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-26 17:36:03,220 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-26 17:36:03,250 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-26 17:36:03,252 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-26 17:36:03,253 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-03-26 17:36:03,253 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-03-26 17:36:03,254 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-proofs/counter-add-4-semi-Q67.wvr.bpl [2021-03-26 17:36:03,268 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-proofs/counter-add-4-semi-Q67.wvr.bpl' [2021-03-26 17:36:03,306 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-26 17:36:03,308 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-03-26 17:36:03,308 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-26 17:36:03,309 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-26 17:36:03,309 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-26 17:36:03,319 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "counter-add-4-semi-Q67.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 05:36:03" (1/1) ... [2021-03-26 17:36:03,323 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "counter-add-4-semi-Q67.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 05:36:03" (1/1) ... [2021-03-26 17:36:03,329 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-26 17:36:03,330 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-26 17:36:03,330 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-26 17:36:03,330 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-26 17:36:03,336 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "counter-add-4-semi-Q67.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 05:36:03" (1/1) ... [2021-03-26 17:36:03,336 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "counter-add-4-semi-Q67.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 05:36:03" (1/1) ... [2021-03-26 17:36:03,337 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "counter-add-4-semi-Q67.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 05:36:03" (1/1) ... [2021-03-26 17:36:03,337 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "counter-add-4-semi-Q67.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 05:36:03" (1/1) ... [2021-03-26 17:36:03,339 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "counter-add-4-semi-Q67.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 05:36:03" (1/1) ... [2021-03-26 17:36:03,342 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "counter-add-4-semi-Q67.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 05:36:03" (1/1) ... [2021-03-26 17:36:03,342 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "counter-add-4-semi-Q67.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 05:36:03" (1/1) ... [2021-03-26 17:36:03,343 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-26 17:36:03,344 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-26 17:36:03,344 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-26 17:36:03,344 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-26 17:36:03,345 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "counter-add-4-semi-Q67.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 05:36:03" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-26 17:36:03,411 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-03-26 17:36:03,412 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-03-26 17:36:03,412 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-03-26 17:36:03,412 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-03-26 17:36:03,412 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-03-26 17:36:03,412 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-03-26 17:36:03,412 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-03-26 17:36:03,412 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-26 17:36:03,413 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-26 17:36:03,413 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-03-26 17:36:03,413 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-03-26 17:36:03,413 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-03-26 17:36:03,413 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2021-03-26 17:36:03,413 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2021-03-26 17:36:03,413 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2021-03-26 17:36:03,414 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-26 17:36:03,700 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-26 17:36:03,701 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-03-26 17:36:03,702 INFO L202 PluginConnector]: Adding new model counter-add-4-semi-Q67.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.03 05:36:03 BoogieIcfgContainer [2021-03-26 17:36:03,702 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-26 17:36:03,703 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-26 17:36:03,703 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-26 17:36:03,706 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-26 17:36:03,706 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "counter-add-4-semi-Q67.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 05:36:03" (1/2) ... [2021-03-26 17:36:03,707 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11a584d0 and model type counter-add-4-semi-Q67.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.03 05:36:03, skipping insertion in model container [2021-03-26 17:36:03,707 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "counter-add-4-semi-Q67.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.03 05:36:03" (2/2) ... [2021-03-26 17:36:03,708 INFO L111 eAbstractionObserver]: Analyzing ICFG counter-add-4-semi-Q67.wvr.bpl [2021-03-26 17:36:03,712 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-26 17:36:03,714 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-26 17:36:03,715 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-26 17:36:03,803 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-03-26 17:36:03,819 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-03-26 17:36:03,850 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 17:36:03,850 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 17:36:03,850 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 17:36:03,850 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 17:36:03,850 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 17:36:03,851 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 17:36:03,851 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 17:36:03,851 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 17:36:03,863 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 44 places, 35 transitions, 102 flow [2021-03-26 17:36:03,900 INFO L129 PetriNetUnfolder]: 4/31 cut-off events. [2021-03-26 17:36:03,901 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-03-26 17:36:03,904 INFO L84 FinitePrefix]: Finished finitePrefix Result has 48 conditions, 31 events. 4/31 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 50 event pairs, 0 based on Foata normal form. 0/26 useless extension candidates. Maximal degree in co-relation 25. Up to 2 conditions per place. [2021-03-26 17:36:03,904 INFO L82 GeneralOperation]: Start removeDead. Operand has 44 places, 35 transitions, 102 flow [2021-03-26 17:36:03,907 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 38 places, 29 transitions, 82 flow [2021-03-26 17:36:03,909 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 17:36:03,923 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 38 places, 29 transitions, 82 flow [2021-03-26 17:36:03,926 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 38 places, 29 transitions, 82 flow [2021-03-26 17:36:03,928 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 38 places, 29 transitions, 82 flow [2021-03-26 17:36:03,944 INFO L129 PetriNetUnfolder]: 4/29 cut-off events. [2021-03-26 17:36:03,945 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-03-26 17:36:03,946 INFO L84 FinitePrefix]: Finished finitePrefix Result has 46 conditions, 29 events. 4/29 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 41 event pairs, 0 based on Foata normal form. 0/25 useless extension candidates. Maximal degree in co-relation 25. Up to 2 conditions per place. [2021-03-26 17:36:03,949 INFO L142 LiptonReduction]: Number of co-enabled transitions 288 [2021-03-26 17:36:04,259 INFO L154 LiptonReduction]: Checked pairs total: 120 [2021-03-26 17:36:04,259 INFO L156 LiptonReduction]: Total number of compositions: 11 [2021-03-26 17:36:04,264 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 356 [2021-03-26 17:36:04,282 INFO L129 PetriNetUnfolder]: 4/17 cut-off events. [2021-03-26 17:36:04,282 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-03-26 17:36:04,282 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 17:36:04,283 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 17:36:04,283 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 17:36:04,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 17:36:04,289 INFO L82 PathProgramCache]: Analyzing trace with hash 1885452408, now seen corresponding path program 1 times [2021-03-26 17:36:04,297 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 17:36:04,298 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956299899] [2021-03-26 17:36:04,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 17:36:04,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 17:36:04,398 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:04,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:36:04,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 17:36:04,404 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956299899] [2021-03-26 17:36:04,405 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 17:36:04,405 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-03-26 17:36:04,406 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055009916] [2021-03-26 17:36:04,412 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-26 17:36:04,412 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 17:36:04,421 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-26 17:36:04,423 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-26 17:36:04,424 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 32 out of 46 [2021-03-26 17:36:04,425 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 18 transitions, 60 flow. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:36:04,425 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 17:36:04,426 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 32 of 46 [2021-03-26 17:36:04,426 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 17:36:04,449 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([122] L57-1-->L57-1: Formula: (and (< v_j2_17 v_M2_4) (= v_counter_53 (+ v_counter_54 (- 1))) (< 0 v_counter_54) (= v_j2_16 (+ v_j2_17 1))) InVars {counter=v_counter_54, j2=v_j2_17, M2=v_M2_4} OutVars{counter=v_counter_53, j2=v_j2_16, M2=v_M2_4} AuxVars[] AssignedVars[counter, j2][14], [48#true, 20#L46-1true, 38#L57-1true, 23#L34-1true, thread3Thread1of1ForFork2InUse, thread4Thread1of1ForFork3InUse, 28#L23-1true, thread2Thread1of1ForFork1InUse, 14#L74true, thread1Thread1of1ForFork0InUse]) [2021-03-26 17:36:04,449 INFO L384 tUnfolder$Statistics]: this new event has 8 ancestors and is cut-off event [2021-03-26 17:36:04,449 INFO L387 tUnfolder$Statistics]: existing Event has 8 ancestors and is cut-off event [2021-03-26 17:36:04,449 INFO L387 tUnfolder$Statistics]: existing Event has 7 ancestors and is cut-off event [2021-03-26 17:36:04,450 INFO L387 tUnfolder$Statistics]: existing Event has 7 ancestors and is cut-off event [2021-03-26 17:36:04,456 INFO L129 PetriNetUnfolder]: 17/43 cut-off events. [2021-03-26 17:36:04,456 INFO L130 PetriNetUnfolder]: For 11/11 co-relation queries the response was YES. [2021-03-26 17:36:04,457 INFO L84 FinitePrefix]: Finished finitePrefix Result has 88 conditions, 43 events. 17/43 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 76 event pairs, 0 based on Foata normal form. 3/40 useless extension candidates. Maximal degree in co-relation 60. Up to 20 conditions per place. [2021-03-26 17:36:04,458 INFO L132 encePairwiseOnDemand]: 40/46 looper letters, 5 selfloop transitions, 3 changer transitions 0/20 dead transitions. [2021-03-26 17:36:04,458 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 20 transitions, 80 flow [2021-03-26 17:36:04,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-26 17:36:04,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-26 17:36:04,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 107 transitions. [2021-03-26 17:36:04,467 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7753623188405797 [2021-03-26 17:36:04,468 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 107 transitions. [2021-03-26 17:36:04,468 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 107 transitions. [2021-03-26 17:36:04,469 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 17:36:04,471 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 107 transitions. [2021-03-26 17:36:04,472 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:36:04,476 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 46.0) internal successors, (184), 4 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:36:04,476 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 46.0) internal successors, (184), 4 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:36:04,478 INFO L185 Difference]: Start difference. First operand has 27 places, 18 transitions, 60 flow. Second operand 3 states and 107 transitions. [2021-03-26 17:36:04,479 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 20 transitions, 80 flow [2021-03-26 17:36:04,481 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 21 places, 20 transitions, 64 flow, removed 0 selfloop flow, removed 8 redundant places. [2021-03-26 17:36:04,482 INFO L241 Difference]: Finished difference. Result has 22 places, 20 transitions, 67 flow [2021-03-26 17:36:04,483 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=67, PETRI_PLACES=22, PETRI_TRANSITIONS=20} [2021-03-26 17:36:04,484 INFO L343 CegarLoopForPetriNet]: 27 programPoint places, -5 predicate places. [2021-03-26 17:36:04,484 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 17:36:04,485 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 22 places, 20 transitions, 67 flow [2021-03-26 17:36:04,485 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 22 places, 20 transitions, 67 flow [2021-03-26 17:36:04,485 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 22 places, 20 transitions, 67 flow [2021-03-26 17:36:04,489 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([122] L57-1-->L57-1: Formula: (and (< v_j2_17 v_M2_4) (= v_counter_53 (+ v_counter_54 (- 1))) (< 0 v_counter_54) (= v_j2_16 (+ v_j2_17 1))) InVars {counter=v_counter_54, j2=v_j2_17, M2=v_M2_4} OutVars{counter=v_counter_53, j2=v_j2_16, M2=v_M2_4} AuxVars[] AssignedVars[counter, j2][7], [48#true, 20#L46-1true, Black: 50#(= counter 0), 38#L57-1true, 23#L34-1true, 28#L23-1true, 14#L74true]) [2021-03-26 17:36:04,490 INFO L384 tUnfolder$Statistics]: this new event has 8 ancestors and is cut-off event [2021-03-26 17:36:04,490 INFO L387 tUnfolder$Statistics]: existing Event has 8 ancestors and is cut-off event [2021-03-26 17:36:04,490 INFO L387 tUnfolder$Statistics]: existing Event has 7 ancestors and is cut-off event [2021-03-26 17:36:04,490 INFO L387 tUnfolder$Statistics]: existing Event has 7 ancestors and is cut-off event [2021-03-26 17:36:04,493 INFO L129 PetriNetUnfolder]: 17/43 cut-off events. [2021-03-26 17:36:04,493 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 17:36:04,493 INFO L84 FinitePrefix]: Finished finitePrefix Result has 72 conditions, 43 events. 17/43 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 74 event pairs, 0 based on Foata normal form. 0/37 useless extension candidates. Maximal degree in co-relation 46. Up to 20 conditions per place. [2021-03-26 17:36:04,494 INFO L142 LiptonReduction]: Number of co-enabled transitions 108 [2021-03-26 17:36:04,496 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 17:36:04,496 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 17:36:04,496 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 12 [2021-03-26 17:36:04,497 INFO L480 AbstractCegarLoop]: Abstraction has has 22 places, 20 transitions, 67 flow [2021-03-26 17:36:04,497 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:36:04,498 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 17:36:04,498 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 17:36:04,498 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-26 17:36:04,498 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 17:36:04,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 17:36:04,499 INFO L82 PathProgramCache]: Analyzing trace with hash 841972005, now seen corresponding path program 1 times [2021-03-26 17:36:04,499 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 17:36:04,499 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208815011] [2021-03-26 17:36:04,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 17:36:04,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 17:36:04,534 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-26 17:36:04,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:04,540 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:04,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:36:04,544 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:04,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:36:04,546 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 17:36:04,546 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208815011] [2021-03-26 17:36:04,546 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 17:36:04,547 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 17:36:04,548 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613490818] [2021-03-26 17:36:04,551 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 17:36:04,551 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 17:36:04,552 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 17:36:04,552 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-26 17:36:04,559 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 31 out of 46 [2021-03-26 17:36:04,561 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 22 places, 20 transitions, 67 flow. Second operand has 4 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:36:04,562 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 17:36:04,562 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 31 of 46 [2021-03-26 17:36:04,562 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 17:36:04,594 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([122] L57-1-->L57-1: Formula: (and (< v_j2_17 v_M2_4) (= v_counter_53 (+ v_counter_54 (- 1))) (< 0 v_counter_54) (= v_j2_16 (+ v_j2_17 1))) InVars {counter=v_counter_54, j2=v_j2_17, M2=v_M2_4} OutVars{counter=v_counter_53, j2=v_j2_16, M2=v_M2_4} AuxVars[] AssignedVars[counter, j2][22], [48#true, 20#L46-1true, Black: 50#(= counter 0), 53#true, 38#L57-1true, 23#L34-1true, 28#L23-1true, 14#L74true]) [2021-03-26 17:36:04,595 INFO L384 tUnfolder$Statistics]: this new event has 8 ancestors and is cut-off event [2021-03-26 17:36:04,595 INFO L387 tUnfolder$Statistics]: existing Event has 8 ancestors and is cut-off event [2021-03-26 17:36:04,595 INFO L387 tUnfolder$Statistics]: existing Event has 7 ancestors and is cut-off event [2021-03-26 17:36:04,595 INFO L387 tUnfolder$Statistics]: existing Event has 8 ancestors and is cut-off event [2021-03-26 17:36:04,601 INFO L129 PetriNetUnfolder]: 47/90 cut-off events. [2021-03-26 17:36:04,601 INFO L130 PetriNetUnfolder]: For 21/35 co-relation queries the response was YES. [2021-03-26 17:36:04,602 INFO L84 FinitePrefix]: Finished finitePrefix Result has 188 conditions, 90 events. 47/90 cut-off events. For 21/35 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 208 event pairs, 0 based on Foata normal form. 7/88 useless extension candidates. Maximal degree in co-relation 152. Up to 48 conditions per place. [2021-03-26 17:36:04,602 INFO L132 encePairwiseOnDemand]: 41/46 looper letters, 7 selfloop transitions, 7 changer transitions 0/28 dead transitions. [2021-03-26 17:36:04,602 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 28 transitions, 117 flow [2021-03-26 17:36:04,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 17:36:04,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 17:36:04,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 170 transitions. [2021-03-26 17:36:04,605 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7391304347826086 [2021-03-26 17:36:04,605 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 170 transitions. [2021-03-26 17:36:04,605 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 170 transitions. [2021-03-26 17:36:04,605 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 17:36:04,606 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 170 transitions. [2021-03-26 17:36:04,606 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 34.0) internal successors, (170), 5 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:36:04,608 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 46.0) internal successors, (276), 6 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:36:04,608 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 46.0) internal successors, (276), 6 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:36:04,608 INFO L185 Difference]: Start difference. First operand has 22 places, 20 transitions, 67 flow. Second operand 5 states and 170 transitions. [2021-03-26 17:36:04,608 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 28 transitions, 117 flow [2021-03-26 17:36:04,609 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 28 transitions, 114 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-26 17:36:04,610 INFO L241 Difference]: Finished difference. Result has 27 places, 25 transitions, 112 flow [2021-03-26 17:36:04,610 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=112, PETRI_PLACES=27, PETRI_TRANSITIONS=25} [2021-03-26 17:36:04,611 INFO L343 CegarLoopForPetriNet]: 27 programPoint places, 0 predicate places. [2021-03-26 17:36:04,611 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 17:36:04,611 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 27 places, 25 transitions, 112 flow [2021-03-26 17:36:04,611 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 27 places, 25 transitions, 112 flow [2021-03-26 17:36:04,612 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 27 places, 25 transitions, 112 flow [2021-03-26 17:36:04,617 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([122] L57-1-->L57-1: Formula: (and (< v_j2_17 v_M2_4) (= v_counter_53 (+ v_counter_54 (- 1))) (< 0 v_counter_54) (= v_j2_16 (+ v_j2_17 1))) InVars {counter=v_counter_54, j2=v_j2_17, M2=v_M2_4} OutVars{counter=v_counter_53, j2=v_j2_16, M2=v_M2_4} AuxVars[] AssignedVars[counter, j2][16], [20#L46-1true, Black: 50#(= counter 0), 53#true, 38#L57-1true, 23#L34-1true, Black: 55#(and (= i2 i1) (= N2 N1)), 28#L23-1true, Black: 58#(and (<= N1 i1) (= i2 i1) (= N2 N1)), 14#L74true]) [2021-03-26 17:36:04,617 INFO L384 tUnfolder$Statistics]: this new event has 8 ancestors and is cut-off event [2021-03-26 17:36:04,617 INFO L387 tUnfolder$Statistics]: existing Event has 8 ancestors and is cut-off event [2021-03-26 17:36:04,617 INFO L387 tUnfolder$Statistics]: existing Event has 7 ancestors and is cut-off event [2021-03-26 17:36:04,617 INFO L387 tUnfolder$Statistics]: existing Event has 8 ancestors and is cut-off event [2021-03-26 17:36:04,621 INFO L129 PetriNetUnfolder]: 31/69 cut-off events. [2021-03-26 17:36:04,621 INFO L130 PetriNetUnfolder]: For 26/39 co-relation queries the response was YES. [2021-03-26 17:36:04,621 INFO L84 FinitePrefix]: Finished finitePrefix Result has 160 conditions, 69 events. 31/69 cut-off events. For 26/39 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 157 event pairs, 0 based on Foata normal form. 4/68 useless extension candidates. Maximal degree in co-relation 125. Up to 35 conditions per place. [2021-03-26 17:36:04,622 INFO L142 LiptonReduction]: Number of co-enabled transitions 158 [2021-03-26 17:36:04,624 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 17:36:04,624 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 17:36:04,624 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 13 [2021-03-26 17:36:04,625 INFO L480 AbstractCegarLoop]: Abstraction has has 27 places, 25 transitions, 112 flow [2021-03-26 17:36:04,625 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:36:04,625 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 17:36:04,626 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 17:36:04,626 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-26 17:36:04,626 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 17:36:04,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 17:36:04,626 INFO L82 PathProgramCache]: Analyzing trace with hash 1197046401, now seen corresponding path program 1 times [2021-03-26 17:36:04,626 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 17:36:04,627 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997836786] [2021-03-26 17:36:04,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 17:36:04,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 17:36:04,662 INFO L142 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-03-26 17:36:04,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 17:36:04,669 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:04,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:04,676 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:04,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:36:04,677 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 17:36:04,677 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997836786] [2021-03-26 17:36:04,677 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 17:36:04,677 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 17:36:04,678 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877090477] [2021-03-26 17:36:04,678 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 17:36:04,678 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 17:36:04,678 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 17:36:04,679 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-26 17:36:04,679 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 31 out of 46 [2021-03-26 17:36:04,679 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 25 transitions, 112 flow. Second operand has 4 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:36:04,680 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 17:36:04,680 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 31 of 46 [2021-03-26 17:36:04,680 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 17:36:04,733 INFO L129 PetriNetUnfolder]: 54/106 cut-off events. [2021-03-26 17:36:04,733 INFO L130 PetriNetUnfolder]: For 66/94 co-relation queries the response was YES. [2021-03-26 17:36:04,736 INFO L84 FinitePrefix]: Finished finitePrefix Result has 275 conditions, 106 events. 54/106 cut-off events. For 66/94 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 274 event pairs, 3 based on Foata normal form. 10/105 useless extension candidates. Maximal degree in co-relation 232. Up to 54 conditions per place. [2021-03-26 17:36:04,737 INFO L132 encePairwiseOnDemand]: 41/46 looper letters, 6 selfloop transitions, 6 changer transitions 0/31 dead transitions. [2021-03-26 17:36:04,737 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 31 transitions, 152 flow [2021-03-26 17:36:04,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 17:36:04,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 17:36:04,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 137 transitions. [2021-03-26 17:36:04,740 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7445652173913043 [2021-03-26 17:36:04,740 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 137 transitions. [2021-03-26 17:36:04,740 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 137 transitions. [2021-03-26 17:36:04,740 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 17:36:04,740 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 137 transitions. [2021-03-26 17:36:04,741 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 34.25) internal successors, (137), 4 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:36:04,743 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 46.0) internal successors, (230), 5 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:36:04,743 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 46.0) internal successors, (230), 5 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:36:04,744 INFO L185 Difference]: Start difference. First operand has 27 places, 25 transitions, 112 flow. Second operand 4 states and 137 transitions. [2021-03-26 17:36:04,744 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 31 transitions, 152 flow [2021-03-26 17:36:04,745 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 31 transitions, 152 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-03-26 17:36:04,746 INFO L241 Difference]: Finished difference. Result has 32 places, 29 transitions, 156 flow [2021-03-26 17:36:04,746 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=112, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=156, PETRI_PLACES=32, PETRI_TRANSITIONS=29} [2021-03-26 17:36:04,746 INFO L343 CegarLoopForPetriNet]: 27 programPoint places, 5 predicate places. [2021-03-26 17:36:04,746 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 17:36:04,746 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 32 places, 29 transitions, 156 flow [2021-03-26 17:36:04,747 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 32 places, 29 transitions, 156 flow [2021-03-26 17:36:04,747 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 32 places, 29 transitions, 156 flow [2021-03-26 17:36:04,757 INFO L129 PetriNetUnfolder]: 48/101 cut-off events. [2021-03-26 17:36:04,757 INFO L130 PetriNetUnfolder]: For 82/99 co-relation queries the response was YES. [2021-03-26 17:36:04,759 INFO L84 FinitePrefix]: Finished finitePrefix Result has 285 conditions, 101 events. 48/101 cut-off events. For 82/99 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 291 event pairs, 3 based on Foata normal form. 6/95 useless extension candidates. Maximal degree in co-relation 238. Up to 49 conditions per place. [2021-03-26 17:36:04,760 INFO L142 LiptonReduction]: Number of co-enabled transitions 210 [2021-03-26 17:36:04,764 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 17:36:04,764 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 17:36:04,764 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 18 [2021-03-26 17:36:04,769 INFO L480 AbstractCegarLoop]: Abstraction has has 32 places, 29 transitions, 156 flow [2021-03-26 17:36:04,770 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:36:04,770 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 17:36:04,770 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 17:36:04,770 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-26 17:36:04,770 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 17:36:04,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 17:36:04,771 INFO L82 PathProgramCache]: Analyzing trace with hash -1490891839, now seen corresponding path program 2 times [2021-03-26 17:36:04,771 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 17:36:04,772 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421007114] [2021-03-26 17:36:04,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 17:36:04,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 17:36:04,808 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-26 17:36:04,809 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:04,823 INFO L142 QuantifierPusher]: treesize reduction 4, result has 69.2 percent of original size [2021-03-26 17:36:04,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 17:36:04,833 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:04,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 17:36:04,838 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:04,839 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:36:04,840 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 17:36:04,840 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421007114] [2021-03-26 17:36:04,841 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [185241955] [2021-03-26 17:36:04,841 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 17:36:04,886 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-26 17:36:04,887 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-26 17:36:04,888 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 6 conjunts are in the unsatisfiable core [2021-03-26 17:36:04,898 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 17:36:04,904 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:04,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 17:36:04,910 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:04,940 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 17:36:04,942 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:04,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:04,945 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 17:36:04,949 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:04,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:04,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 17:36:04,956 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:04,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:04,968 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:04,968 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:04,976 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:04,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:04,977 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:04,977 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:04,978 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:04,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:04,979 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:04,979 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:04,979 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:04,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:04,980 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:04,981 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:04,981 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:04,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:04,982 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:04,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:04,983 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:04,983 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:04,984 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:04,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:04,985 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:04,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:04,986 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:04,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:04,987 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:04,988 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 17:36:04,988 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:04,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:04,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 17:36:04,990 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:04,992 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 17:36:04,992 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:04,993 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 17:36:04,993 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:04,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:04,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 17:36:04,995 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 17:36:04,996 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:04,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:36:04,998 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:04,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:36:05,003 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:05,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 17:36:05,003 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:05,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 17:36:05,004 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:05,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 17:36:05,005 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:05,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 17:36:05,005 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:05,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 17:36:05,006 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:05,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 17:36:05,006 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:05,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 17:36:05,007 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:05,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 17:36:05,008 INFO L142 QuantifierPusher]: treesize reduction 9, result has 10.0 percent of original size [2021-03-26 17:36:05,009 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:36:05,009 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:05,009 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:36:05,009 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:05,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:36:05,010 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:05,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:36:05,010 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:05,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:36:05,011 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:05,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:36:05,012 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:05,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:36:05,017 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:05,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:36:05,017 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:05,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:36:05,019 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:05,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:36:05,019 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:05,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:36:05,020 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:05,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:36:05,022 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:05,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:36:05,023 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:05,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:36:05,025 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:05,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:36:05,026 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:05,026 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:36:05,026 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:05,026 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:36:05,027 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:05,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:36:05,028 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:05,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:36:05,028 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:05,029 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:36:05,029 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:05,030 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:36:05,030 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:05,030 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:36:05,031 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 17:36:05,031 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 17:36:05,031 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3] total 5 [2021-03-26 17:36:05,031 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409399399] [2021-03-26 17:36:05,031 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-26 17:36:05,031 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 17:36:05,032 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-26 17:36:05,032 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-03-26 17:36:05,033 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 31 out of 46 [2021-03-26 17:36:05,033 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 29 transitions, 156 flow. Second operand has 6 states, 6 states have (on average 32.166666666666664) internal successors, (193), 6 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:36:05,033 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 17:36:05,033 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 31 of 46 [2021-03-26 17:36:05,033 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 17:36:05,088 INFO L129 PetriNetUnfolder]: 48/102 cut-off events. [2021-03-26 17:36:05,088 INFO L130 PetriNetUnfolder]: For 143/201 co-relation queries the response was YES. [2021-03-26 17:36:05,088 INFO L84 FinitePrefix]: Finished finitePrefix Result has 345 conditions, 102 events. 48/102 cut-off events. For 143/201 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 264 event pairs, 1 based on Foata normal form. 14/105 useless extension candidates. Maximal degree in co-relation 298. Up to 54 conditions per place. [2021-03-26 17:36:05,089 INFO L132 encePairwiseOnDemand]: 42/46 looper letters, 10 selfloop transitions, 5 changer transitions 0/34 dead transitions. [2021-03-26 17:36:05,090 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 34 transitions, 214 flow [2021-03-26 17:36:05,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 17:36:05,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 17:36:05,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 137 transitions. [2021-03-26 17:36:05,091 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7445652173913043 [2021-03-26 17:36:05,091 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 137 transitions. [2021-03-26 17:36:05,091 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 137 transitions. [2021-03-26 17:36:05,091 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 17:36:05,091 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 137 transitions. [2021-03-26 17:36:05,092 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 34.25) internal successors, (137), 4 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:36:05,093 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 46.0) internal successors, (230), 5 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:36:05,093 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 46.0) internal successors, (230), 5 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:36:05,093 INFO L185 Difference]: Start difference. First operand has 32 places, 29 transitions, 156 flow. Second operand 4 states and 137 transitions. [2021-03-26 17:36:05,093 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 34 transitions, 214 flow [2021-03-26 17:36:05,094 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 34 transitions, 210 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-26 17:36:05,095 INFO L241 Difference]: Finished difference. Result has 35 places, 30 transitions, 177 flow [2021-03-26 17:36:05,095 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=152, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=177, PETRI_PLACES=35, PETRI_TRANSITIONS=30} [2021-03-26 17:36:05,096 INFO L343 CegarLoopForPetriNet]: 27 programPoint places, 8 predicate places. [2021-03-26 17:36:05,096 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 17:36:05,096 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 35 places, 30 transitions, 177 flow [2021-03-26 17:36:05,096 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 35 places, 30 transitions, 177 flow [2021-03-26 17:36:05,096 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 35 places, 30 transitions, 177 flow [2021-03-26 17:36:05,104 INFO L129 PetriNetUnfolder]: 43/99 cut-off events. [2021-03-26 17:36:05,104 INFO L130 PetriNetUnfolder]: For 122/140 co-relation queries the response was YES. [2021-03-26 17:36:05,105 INFO L84 FinitePrefix]: Finished finitePrefix Result has 301 conditions, 99 events. 43/99 cut-off events. For 122/140 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 298 event pairs, 3 based on Foata normal form. 6/95 useless extension candidates. Maximal degree in co-relation 251. Up to 48 conditions per place. [2021-03-26 17:36:05,106 INFO L142 LiptonReduction]: Number of co-enabled transitions 226 [2021-03-26 17:36:05,108 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 17:36:05,108 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 17:36:05,108 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 12 [2021-03-26 17:36:05,109 INFO L480 AbstractCegarLoop]: Abstraction has has 35 places, 30 transitions, 177 flow [2021-03-26 17:36:05,109 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 32.166666666666664) internal successors, (193), 6 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:36:05,109 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 17:36:05,109 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 17:36:05,322 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 17:36:05,322 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 17:36:05,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 17:36:05,323 INFO L82 PathProgramCache]: Analyzing trace with hash 849657855, now seen corresponding path program 2 times [2021-03-26 17:36:05,323 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 17:36:05,324 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291103388] [2021-03-26 17:36:05,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 17:36:05,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 17:36:05,358 INFO L142 QuantifierPusher]: treesize reduction 12, result has 45.5 percent of original size [2021-03-26 17:36:05,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 17:36:05,371 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-26 17:36:05,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:05,378 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:05,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:36:05,384 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:05,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:36:05,385 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 17:36:05,385 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [291103388] [2021-03-26 17:36:05,385 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 17:36:05,385 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-26 17:36:05,386 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466100471] [2021-03-26 17:36:05,386 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-26 17:36:05,386 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 17:36:05,386 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-26 17:36:05,386 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-26 17:36:05,387 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 46 [2021-03-26 17:36:05,387 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 30 transitions, 177 flow. Second operand has 5 states, 5 states have (on average 28.0) internal successors, (140), 5 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:36:05,387 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 17:36:05,387 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 46 [2021-03-26 17:36:05,387 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 17:36:05,459 INFO L129 PetriNetUnfolder]: 140/278 cut-off events. [2021-03-26 17:36:05,459 INFO L130 PetriNetUnfolder]: For 685/764 co-relation queries the response was YES. [2021-03-26 17:36:05,460 INFO L84 FinitePrefix]: Finished finitePrefix Result has 955 conditions, 278 events. 140/278 cut-off events. For 685/764 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 1242 event pairs, 10 based on Foata normal form. 31/293 useless extension candidates. Maximal degree in co-relation 855. Up to 104 conditions per place. [2021-03-26 17:36:05,462 INFO L132 encePairwiseOnDemand]: 41/46 looper letters, 21 selfloop transitions, 6 changer transitions 10/50 dead transitions. [2021-03-26 17:36:05,462 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 50 transitions, 377 flow [2021-03-26 17:36:05,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 17:36:05,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 17:36:05,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 156 transitions. [2021-03-26 17:36:05,464 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6782608695652174 [2021-03-26 17:36:05,464 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 156 transitions. [2021-03-26 17:36:05,464 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 156 transitions. [2021-03-26 17:36:05,464 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 17:36:05,464 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 156 transitions. [2021-03-26 17:36:05,465 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 31.2) internal successors, (156), 5 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:36:05,466 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 46.0) internal successors, (276), 6 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:36:05,466 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 46.0) internal successors, (276), 6 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:36:05,467 INFO L185 Difference]: Start difference. First operand has 35 places, 30 transitions, 177 flow. Second operand 5 states and 156 transitions. [2021-03-26 17:36:05,467 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 50 transitions, 377 flow [2021-03-26 17:36:05,471 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 50 transitions, 366 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-26 17:36:05,472 INFO L241 Difference]: Finished difference. Result has 38 places, 30 transitions, 189 flow [2021-03-26 17:36:05,472 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=170, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=189, PETRI_PLACES=38, PETRI_TRANSITIONS=30} [2021-03-26 17:36:05,472 INFO L343 CegarLoopForPetriNet]: 27 programPoint places, 11 predicate places. [2021-03-26 17:36:05,472 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 17:36:05,472 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 38 places, 30 transitions, 189 flow [2021-03-26 17:36:05,473 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 38 places, 30 transitions, 189 flow [2021-03-26 17:36:05,473 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 37 places, 30 transitions, 189 flow [2021-03-26 17:36:05,481 INFO L129 PetriNetUnfolder]: 43/97 cut-off events. [2021-03-26 17:36:05,481 INFO L130 PetriNetUnfolder]: For 127/141 co-relation queries the response was YES. [2021-03-26 17:36:05,482 INFO L84 FinitePrefix]: Finished finitePrefix Result has 311 conditions, 97 events. 43/97 cut-off events. For 127/141 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 290 event pairs, 3 based on Foata normal form. 6/94 useless extension candidates. Maximal degree in co-relation 262. Up to 48 conditions per place. [2021-03-26 17:36:05,483 INFO L142 LiptonReduction]: Number of co-enabled transitions 194 [2021-03-26 17:36:05,485 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 17:36:05,485 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 17:36:05,485 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 13 [2021-03-26 17:36:05,487 INFO L480 AbstractCegarLoop]: Abstraction has has 37 places, 30 transitions, 189 flow [2021-03-26 17:36:05,487 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 28.0) internal successors, (140), 5 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:36:05,487 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 17:36:05,487 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 17:36:05,487 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-26 17:36:05,487 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 17:36:05,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 17:36:05,488 INFO L82 PathProgramCache]: Analyzing trace with hash 926599219, now seen corresponding path program 3 times [2021-03-26 17:36:05,488 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 17:36:05,488 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783169238] [2021-03-26 17:36:05,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 17:36:05,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 17:36:05,525 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-26 17:36:05,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:05,530 INFO L142 QuantifierPusher]: treesize reduction 4, result has 69.2 percent of original size [2021-03-26 17:36:05,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 17:36:05,539 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:05,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:36:05,540 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 17:36:05,540 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783169238] [2021-03-26 17:36:05,540 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-26 17:36:05,540 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-26 17:36:05,540 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779461352] [2021-03-26 17:36:05,541 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 17:36:05,541 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 17:36:05,541 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 17:36:05,541 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-26 17:36:05,542 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 31 out of 46 [2021-03-26 17:36:05,543 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 30 transitions, 189 flow. Second operand has 4 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:36:05,543 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 17:36:05,543 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 31 of 46 [2021-03-26 17:36:05,543 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 17:36:05,583 INFO L129 PetriNetUnfolder]: 98/170 cut-off events. [2021-03-26 17:36:05,583 INFO L130 PetriNetUnfolder]: For 451/485 co-relation queries the response was YES. [2021-03-26 17:36:05,584 INFO L84 FinitePrefix]: Finished finitePrefix Result has 683 conditions, 170 events. 98/170 cut-off events. For 451/485 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 501 event pairs, 18 based on Foata normal form. 18/172 useless extension candidates. Maximal degree in co-relation 634. Up to 96 conditions per place. [2021-03-26 17:36:05,585 INFO L132 encePairwiseOnDemand]: 42/46 looper letters, 9 selfloop transitions, 5 changer transitions 0/32 dead transitions. [2021-03-26 17:36:05,585 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 32 transitions, 231 flow [2021-03-26 17:36:05,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 17:36:05,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 17:36:05,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 135 transitions. [2021-03-26 17:36:05,587 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7336956521739131 [2021-03-26 17:36:05,587 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 135 transitions. [2021-03-26 17:36:05,587 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 135 transitions. [2021-03-26 17:36:05,587 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 17:36:05,587 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 135 transitions. [2021-03-26 17:36:05,587 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 33.75) internal successors, (135), 4 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:36:05,588 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 46.0) internal successors, (230), 5 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:36:05,588 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 46.0) internal successors, (230), 5 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:36:05,588 INFO L185 Difference]: Start difference. First operand has 37 places, 30 transitions, 189 flow. Second operand 4 states and 135 transitions. [2021-03-26 17:36:05,588 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 32 transitions, 231 flow [2021-03-26 17:36:05,589 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 32 transitions, 226 flow, removed 1 selfloop flow, removed 1 redundant places. [2021-03-26 17:36:05,591 INFO L241 Difference]: Finished difference. Result has 40 places, 30 transitions, 201 flow [2021-03-26 17:36:05,591 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=176, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=201, PETRI_PLACES=40, PETRI_TRANSITIONS=30} [2021-03-26 17:36:05,591 INFO L343 CegarLoopForPetriNet]: 27 programPoint places, 13 predicate places. [2021-03-26 17:36:05,591 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 17:36:05,591 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 40 places, 30 transitions, 201 flow [2021-03-26 17:36:05,591 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 40 places, 30 transitions, 201 flow [2021-03-26 17:36:05,592 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 40 places, 30 transitions, 201 flow [2021-03-26 17:36:05,599 INFO L129 PetriNetUnfolder]: 51/111 cut-off events. [2021-03-26 17:36:05,599 INFO L130 PetriNetUnfolder]: For 191/206 co-relation queries the response was YES. [2021-03-26 17:36:05,600 INFO L84 FinitePrefix]: Finished finitePrefix Result has 384 conditions, 111 events. 51/111 cut-off events. For 191/206 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 339 event pairs, 5 based on Foata normal form. 6/107 useless extension candidates. Maximal degree in co-relation 333. Up to 58 conditions per place. [2021-03-26 17:36:05,601 INFO L142 LiptonReduction]: Number of co-enabled transitions 188 [2021-03-26 17:36:05,603 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 17:36:05,603 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 17:36:05,604 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 13 [2021-03-26 17:36:05,604 INFO L480 AbstractCegarLoop]: Abstraction has has 40 places, 30 transitions, 201 flow [2021-03-26 17:36:05,605 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:36:05,605 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 17:36:05,605 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 17:36:05,605 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-26 17:36:05,605 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 17:36:05,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 17:36:05,606 INFO L82 PathProgramCache]: Analyzing trace with hash 1360638997, now seen corresponding path program 1 times [2021-03-26 17:36:05,606 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 17:36:05,606 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833604076] [2021-03-26 17:36:05,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 17:36:05,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 17:36:05,655 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-26 17:36:05,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:05,666 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:05,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:36:05,670 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:05,670 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:36:05,670 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 17:36:05,670 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833604076] [2021-03-26 17:36:05,671 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1817893630] [2021-03-26 17:36:05,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 17:36:05,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 17:36:05,704 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 4 conjunts are in the unsatisfiable core [2021-03-26 17:36:05,705 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 17:36:05,709 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:05,710 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:05,712 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:05,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:05,715 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:05,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:05,717 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:05,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:05,726 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:05,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:05,727 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:05,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:05,731 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:05,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:05,732 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:05,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:05,734 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:05,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:05,735 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:05,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:05,736 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:05,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:05,740 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:05,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:05,743 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:05,743 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:05,743 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:05,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:05,745 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:05,745 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:05,747 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:05,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:05,748 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:05,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:05,749 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:05,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:05,750 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:05,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:05,756 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:05,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:05,757 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:05,758 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 17:36:05,758 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:05,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:05,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 17:36:05,766 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:05,767 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 17:36:05,768 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:05,768 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 17:36:05,769 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:05,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:05,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 17:36:05,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 17:36:05,771 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:05,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:36:05,776 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:05,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:36:05,782 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:05,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:36:05,783 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:05,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:36:05,784 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:05,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:36:05,784 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:05,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:36:05,786 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:05,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:36:05,786 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:05,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:36:05,787 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:05,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:36:05,787 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:05,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:36:05,788 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:05,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:36:05,788 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:05,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:36:05,789 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:05,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:36:05,790 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:05,790 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:36:05,790 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:05,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:36:05,791 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:05,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:36:05,792 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:05,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:36:05,792 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:05,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:36:05,793 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:05,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:36:05,793 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:05,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:36:05,794 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:05,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:36:05,796 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:05,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:36:05,797 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:05,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:36:05,797 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:05,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:36:05,798 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:05,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:36:05,799 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:05,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:36:05,799 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:05,806 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:36:05,808 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:05,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:36:05,808 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:05,809 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:36:05,810 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:05,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:36:05,810 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-26 17:36:05,810 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-03-26 17:36:05,810 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2021-03-26 17:36:05,810 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371880153] [2021-03-26 17:36:05,811 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-26 17:36:05,811 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 17:36:05,811 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-26 17:36:05,812 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-26 17:36:05,812 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 31 out of 46 [2021-03-26 17:36:05,812 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 30 transitions, 201 flow. Second operand has 4 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:36:05,812 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 17:36:05,812 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 31 of 46 [2021-03-26 17:36:05,812 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 17:36:05,846 INFO L129 PetriNetUnfolder]: 107/168 cut-off events. [2021-03-26 17:36:05,847 INFO L130 PetriNetUnfolder]: For 666/701 co-relation queries the response was YES. [2021-03-26 17:36:05,848 INFO L84 FinitePrefix]: Finished finitePrefix Result has 786 conditions, 168 events. 107/168 cut-off events. For 666/701 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 437 event pairs, 24 based on Foata normal form. 19/164 useless extension candidates. Maximal degree in co-relation 748. Up to 106 conditions per place. [2021-03-26 17:36:05,849 INFO L132 encePairwiseOnDemand]: 42/46 looper letters, 8 selfloop transitions, 5 changer transitions 0/31 dead transitions. [2021-03-26 17:36:05,849 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 31 transitions, 239 flow [2021-03-26 17:36:05,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 17:36:05,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 17:36:05,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 135 transitions. [2021-03-26 17:36:05,850 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7336956521739131 [2021-03-26 17:36:05,850 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 135 transitions. [2021-03-26 17:36:05,850 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 135 transitions. [2021-03-26 17:36:05,850 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 17:36:05,851 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 135 transitions. [2021-03-26 17:36:05,851 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 33.75) internal successors, (135), 4 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:36:05,851 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 46.0) internal successors, (230), 5 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:36:05,851 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 46.0) internal successors, (230), 5 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:36:05,852 INFO L185 Difference]: Start difference. First operand has 40 places, 30 transitions, 201 flow. Second operand 4 states and 135 transitions. [2021-03-26 17:36:05,852 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 31 transitions, 239 flow [2021-03-26 17:36:05,853 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 31 transitions, 228 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-03-26 17:36:05,854 INFO L241 Difference]: Finished difference. Result has 41 places, 29 transitions, 201 flow [2021-03-26 17:36:05,854 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=176, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=201, PETRI_PLACES=41, PETRI_TRANSITIONS=29} [2021-03-26 17:36:05,854 INFO L343 CegarLoopForPetriNet]: 27 programPoint places, 14 predicate places. [2021-03-26 17:36:05,854 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 17:36:05,854 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 41 places, 29 transitions, 201 flow [2021-03-26 17:36:05,855 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 41 places, 29 transitions, 201 flow [2021-03-26 17:36:05,855 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 41 places, 29 transitions, 201 flow [2021-03-26 17:36:05,863 INFO L129 PetriNetUnfolder]: 71/125 cut-off events. [2021-03-26 17:36:05,863 INFO L130 PetriNetUnfolder]: For 345/385 co-relation queries the response was YES. [2021-03-26 17:36:05,864 INFO L84 FinitePrefix]: Finished finitePrefix Result has 517 conditions, 125 events. 71/125 cut-off events. For 345/385 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 323 event pairs, 7 based on Foata normal form. 6/116 useless extension candidates. Maximal degree in co-relation 476. Up to 80 conditions per place. [2021-03-26 17:36:05,865 INFO L142 LiptonReduction]: Number of co-enabled transitions 170 [2021-03-26 17:36:05,867 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 17:36:05,867 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 17:36:05,867 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 13 [2021-03-26 17:36:05,867 INFO L480 AbstractCegarLoop]: Abstraction has has 41 places, 29 transitions, 201 flow [2021-03-26 17:36:05,868 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:36:05,868 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 17:36:05,868 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 17:36:06,087 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 17:36:06,088 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 17:36:06,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 17:36:06,088 INFO L82 PathProgramCache]: Analyzing trace with hash 119423642, now seen corresponding path program 1 times [2021-03-26 17:36:06,088 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 17:36:06,088 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725961158] [2021-03-26 17:36:06,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 17:36:06,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 17:36:06,120 INFO L142 QuantifierPusher]: treesize reduction 12, result has 45.5 percent of original size [2021-03-26 17:36:06,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 17:36:06,130 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-26 17:36:06,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:06,139 INFO L142 QuantifierPusher]: treesize reduction 4, result has 69.2 percent of original size [2021-03-26 17:36:06,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 17:36:06,146 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:06,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 17:36:06,153 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:06,153 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:36:06,154 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-26 17:36:06,154 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725961158] [2021-03-26 17:36:06,154 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1242964516] [2021-03-26 17:36:06,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 17:36:06,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 17:36:06,191 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 4 conjunts are in the unsatisfiable core [2021-03-26 17:36:06,192 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 17:36:06,192 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:06,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:06,193 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:06,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:06,194 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:06,194 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:06,194 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:06,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:06,204 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:06,204 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:06,205 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:06,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:06,205 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:06,206 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:06,206 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:06,206 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:06,207 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:06,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:06,207 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:06,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:06,208 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:06,209 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:06,209 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:06,209 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:06,210 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:06,210 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:06,210 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:06,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:06,211 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:06,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:06,212 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:06,213 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:06,213 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:06,213 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:06,214 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:06,214 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:06,214 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:06,215 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:06,216 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:06,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:06,217 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:06,218 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 17:36:06,219 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:06,219 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:06,220 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 17:36:06,221 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:06,223 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 17:36:06,224 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:06,225 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 17:36:06,225 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:06,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:06,227 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 17:36:06,228 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 17:36:06,229 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:06,231 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:36:06,232 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:06,232 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:36:06,237 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:06,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 17:36:06,237 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:06,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 17:36:06,238 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:06,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 17:36:06,238 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:06,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 17:36:06,239 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:06,242 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 17:36:06,242 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:06,243 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 17:36:06,243 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:06,243 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 17:36:06,244 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:06,244 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 17:36:06,244 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:06,244 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 17:36:06,245 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:06,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 17:36:06,245 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:06,246 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 17:36:06,246 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:06,246 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 17:36:06,247 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:06,247 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 17:36:06,247 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:06,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 17:36:06,248 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:06,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 17:36:06,248 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:06,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 17:36:06,249 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:06,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 17:36:06,250 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:06,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 17:36:06,252 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:06,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 17:36:06,252 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:06,253 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 17:36:06,253 INFO L142 QuantifierPusher]: treesize reduction 9, result has 10.0 percent of original size [2021-03-26 17:36:06,253 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:36:06,254 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:06,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:36:06,254 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:06,255 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:36:06,255 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:06,255 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:36:06,256 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:06,256 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:36:06,256 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:06,257 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:36:06,257 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:06,257 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:36:06,258 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:06,258 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:36:06,263 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:06,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:36:06,264 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:06,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:36:06,265 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:06,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:36:06,266 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:06,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:36:06,266 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:06,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:36:06,267 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:06,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:36:06,267 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:06,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:36:06,268 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:06,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:36:06,269 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-03-26 17:36:06,269 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 17:36:06,269 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 3] total 6 [2021-03-26 17:36:06,269 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744418362] [2021-03-26 17:36:06,269 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-03-26 17:36:06,269 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 17:36:06,270 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-03-26 17:36:06,270 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-03-26 17:36:06,270 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 46 [2021-03-26 17:36:06,270 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 29 transitions, 201 flow. Second operand has 7 states, 7 states have (on average 27.571428571428573) internal successors, (193), 7 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:36:06,271 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 17:36:06,271 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 46 [2021-03-26 17:36:06,271 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 17:36:06,378 INFO L129 PetriNetUnfolder]: 195/295 cut-off events. [2021-03-26 17:36:06,378 INFO L130 PetriNetUnfolder]: For 1125/1171 co-relation queries the response was YES. [2021-03-26 17:36:06,380 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1415 conditions, 295 events. 195/295 cut-off events. For 1125/1171 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 965 event pairs, 29 based on Foata normal form. 31/313 useless extension candidates. Maximal degree in co-relation 1370. Up to 176 conditions per place. [2021-03-26 17:36:06,383 INFO L132 encePairwiseOnDemand]: 41/46 looper letters, 17 selfloop transitions, 7 changer transitions 3/41 dead transitions. [2021-03-26 17:36:06,383 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 41 transitions, 351 flow [2021-03-26 17:36:06,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-03-26 17:36:06,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-03-26 17:36:06,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 122 transitions. [2021-03-26 17:36:06,384 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6630434782608695 [2021-03-26 17:36:06,384 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 122 transitions. [2021-03-26 17:36:06,384 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 122 transitions. [2021-03-26 17:36:06,385 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 17:36:06,385 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 122 transitions. [2021-03-26 17:36:06,385 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 30.5) internal successors, (122), 4 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:36:06,385 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 46.0) internal successors, (230), 5 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:36:06,386 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 46.0) internal successors, (230), 5 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:36:06,386 INFO L185 Difference]: Start difference. First operand has 41 places, 29 transitions, 201 flow. Second operand 4 states and 122 transitions. [2021-03-26 17:36:06,386 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 41 transitions, 351 flow [2021-03-26 17:36:06,388 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 41 transitions, 337 flow, removed 3 selfloop flow, removed 2 redundant places. [2021-03-26 17:36:06,390 INFO L241 Difference]: Finished difference. Result has 44 places, 32 transitions, 250 flow [2021-03-26 17:36:06,391 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=190, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=250, PETRI_PLACES=44, PETRI_TRANSITIONS=32} [2021-03-26 17:36:06,391 INFO L343 CegarLoopForPetriNet]: 27 programPoint places, 17 predicate places. [2021-03-26 17:36:06,391 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 17:36:06,391 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 44 places, 32 transitions, 250 flow [2021-03-26 17:36:06,391 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 44 places, 32 transitions, 250 flow [2021-03-26 17:36:06,392 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 43 places, 32 transitions, 250 flow [2021-03-26 17:36:06,402 INFO L129 PetriNetUnfolder]: 78/139 cut-off events. [2021-03-26 17:36:06,403 INFO L130 PetriNetUnfolder]: For 450/501 co-relation queries the response was YES. [2021-03-26 17:36:06,403 INFO L84 FinitePrefix]: Finished finitePrefix Result has 605 conditions, 139 events. 78/139 cut-off events. For 450/501 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 377 event pairs, 12 based on Foata normal form. 9/136 useless extension candidates. Maximal degree in co-relation 562. Up to 89 conditions per place. [2021-03-26 17:36:06,404 INFO L142 LiptonReduction]: Number of co-enabled transitions 164 [2021-03-26 17:36:06,407 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 17:36:06,407 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 17:36:06,407 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 16 [2021-03-26 17:36:06,407 INFO L480 AbstractCegarLoop]: Abstraction has has 43 places, 32 transitions, 250 flow [2021-03-26 17:36:06,408 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 27.571428571428573) internal successors, (193), 7 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:36:06,408 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 17:36:06,408 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 17:36:06,628 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 17:36:06,628 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 17:36:06,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 17:36:06,629 INFO L82 PathProgramCache]: Analyzing trace with hash 980800168, now seen corresponding path program 1 times [2021-03-26 17:36:06,629 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 17:36:06,629 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628931103] [2021-03-26 17:36:06,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 17:36:06,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 17:36:06,662 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:06,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:06,667 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:06,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:06,673 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:06,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:06,680 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:06,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:06,683 INFO L142 QuantifierPusher]: treesize reduction 9, result has 50.0 percent of original size [2021-03-26 17:36:06,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 17:36:06,686 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 17:36:06,686 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [628931103] [2021-03-26 17:36:06,686 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [799372838] [2021-03-26 17:36:06,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 17:36:06,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 17:36:06,730 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 8 conjunts are in the unsatisfiable core [2021-03-26 17:36:06,731 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 17:36:06,731 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:06,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:36:06,732 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:06,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:36:06,733 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:06,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:36:06,733 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:06,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:36:06,739 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:06,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:36:06,739 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:06,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:36:06,740 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:06,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:36:06,740 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:06,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:36:06,741 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:06,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:36:06,742 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:06,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:36:06,742 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:06,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:36:06,743 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:06,743 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:36:06,743 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:06,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:36:06,744 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:06,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:36:06,744 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:06,745 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:36:06,745 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:06,745 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:36:06,745 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:06,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:36:06,746 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:06,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:36:06,747 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:06,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:36:06,747 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:06,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:36:06,748 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:06,749 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 17:36:06,749 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:06,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 17:36:06,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 17:36:06,750 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:06,751 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 17:36:06,751 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:06,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 17:36:06,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 17:36:06,752 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:06,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:36:06,754 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:06,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:36:06,760 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:06,761 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 17:36:06,761 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:06,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 17:36:06,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 17:36:06,762 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:06,763 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 17:36:06,763 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:06,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 17:36:06,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 17:36:06,765 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:06,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:36:06,766 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:06,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:36:06,773 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:06,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:36:06,774 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:06,774 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:36:06,774 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:06,774 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:36:06,775 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:06,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:36:06,776 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:06,776 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 17:36:06,777 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:06,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 17:36:06,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 17:36:06,778 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:06,778 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 17:36:06,779 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:06,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 17:36:06,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 17:36:06,780 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:06,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:36:06,781 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:06,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:36:06,781 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:06,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:36:06,782 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:06,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:36:06,782 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:06,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:36:06,783 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:06,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:36:06,784 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:06,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:36:06,784 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:06,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:36:06,785 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:06,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:36:06,785 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:06,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:36:06,786 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:06,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:36:06,786 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:06,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:36:06,787 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:06,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:36:06,787 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:06,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:36:06,788 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:06,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 17:36:06,790 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:06,790 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 17:36:06,790 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:06,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 17:36:06,791 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:06,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 17:36:06,794 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:06,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:06,795 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:06,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:06,795 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:06,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:06,796 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:06,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:06,797 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:06,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:06,798 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:06,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:06,798 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:06,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:06,799 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:06,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:06,800 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:06,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:06,800 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:06,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:06,801 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:06,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:06,802 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:06,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:06,802 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:06,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:06,803 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:06,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:06,804 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:06,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:06,804 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:06,805 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:06,805 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 17:36:06,805 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 17:36:06,805 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 4] total 6 [2021-03-26 17:36:06,805 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491730277] [2021-03-26 17:36:06,805 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-26 17:36:06,806 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 17:36:06,806 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-26 17:36:06,806 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-03-26 17:36:06,806 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 32 out of 46 [2021-03-26 17:36:06,807 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 32 transitions, 250 flow. Second operand has 8 states, 8 states have (on average 33.375) internal successors, (267), 8 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:36:06,807 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 17:36:06,807 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 32 of 46 [2021-03-26 17:36:06,807 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 17:36:06,886 INFO L129 PetriNetUnfolder]: 271/496 cut-off events. [2021-03-26 17:36:06,886 INFO L130 PetriNetUnfolder]: For 1906/2137 co-relation queries the response was YES. [2021-03-26 17:36:06,888 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2401 conditions, 496 events. 271/496 cut-off events. For 1906/2137 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 2233 event pairs, 42 based on Foata normal form. 58/523 useless extension candidates. Maximal degree in co-relation 2304. Up to 308 conditions per place. [2021-03-26 17:36:06,892 INFO L132 encePairwiseOnDemand]: 40/46 looper letters, 18 selfloop transitions, 39 changer transitions 0/70 dead transitions. [2021-03-26 17:36:06,892 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 70 transitions, 727 flow [2021-03-26 17:36:06,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-26 17:36:06,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-26 17:36:06,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 181 transitions. [2021-03-26 17:36:06,893 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7869565217391304 [2021-03-26 17:36:06,893 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 181 transitions. [2021-03-26 17:36:06,893 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 181 transitions. [2021-03-26 17:36:06,894 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 17:36:06,894 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 181 transitions. [2021-03-26 17:36:06,894 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 36.2) internal successors, (181), 5 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:36:06,895 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 46.0) internal successors, (276), 6 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:36:06,895 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 46.0) internal successors, (276), 6 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:36:06,895 INFO L185 Difference]: Start difference. First operand has 43 places, 32 transitions, 250 flow. Second operand 5 states and 181 transitions. [2021-03-26 17:36:06,895 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 70 transitions, 727 flow [2021-03-26 17:36:06,899 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 70 transitions, 678 flow, removed 18 selfloop flow, removed 3 redundant places. [2021-03-26 17:36:06,901 INFO L241 Difference]: Finished difference. Result has 45 places, 68 transitions, 687 flow [2021-03-26 17:36:06,901 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=231, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=687, PETRI_PLACES=45, PETRI_TRANSITIONS=68} [2021-03-26 17:36:06,901 INFO L343 CegarLoopForPetriNet]: 27 programPoint places, 18 predicate places. [2021-03-26 17:36:06,901 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 17:36:06,901 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 45 places, 68 transitions, 687 flow [2021-03-26 17:36:06,901 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 45 places, 68 transitions, 687 flow [2021-03-26 17:36:06,902 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 45 places, 68 transitions, 687 flow [2021-03-26 17:36:06,938 INFO L129 PetriNetUnfolder]: 288/510 cut-off events. [2021-03-26 17:36:06,938 INFO L130 PetriNetUnfolder]: For 1453/1631 co-relation queries the response was YES. [2021-03-26 17:36:06,940 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2275 conditions, 510 events. 288/510 cut-off events. For 1453/1631 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 2408 event pairs, 48 based on Foata normal form. 7/467 useless extension candidates. Maximal degree in co-relation 2183. Up to 317 conditions per place. [2021-03-26 17:36:06,945 INFO L142 LiptonReduction]: Number of co-enabled transitions 438 [2021-03-26 17:36:06,951 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 17:36:06,951 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 17:36:06,951 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 50 [2021-03-26 17:36:06,952 INFO L480 AbstractCegarLoop]: Abstraction has has 45 places, 68 transitions, 687 flow [2021-03-26 17:36:06,952 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 33.375) internal successors, (267), 8 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:36:06,952 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 17:36:06,952 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 17:36:07,174 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 17:36:07,174 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 17:36:07,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 17:36:07,174 INFO L82 PathProgramCache]: Analyzing trace with hash -1374283109, now seen corresponding path program 2 times [2021-03-26 17:36:07,175 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 17:36:07,175 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615369090] [2021-03-26 17:36:07,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 17:36:07,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 17:36:07,205 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-26 17:36:07,206 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:07,213 INFO L142 QuantifierPusher]: treesize reduction 4, result has 69.2 percent of original size [2021-03-26 17:36:07,213 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 17:36:07,219 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-26 17:36:07,219 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:07,226 INFO L142 QuantifierPusher]: treesize reduction 4, result has 69.2 percent of original size [2021-03-26 17:36:07,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 17:36:07,233 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:07,234 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:36:07,234 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 17:36:07,234 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [615369090] [2021-03-26 17:36:07,234 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [230613763] [2021-03-26 17:36:07,234 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 17:36:07,279 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-26 17:36:07,279 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-26 17:36:07,280 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 6 conjunts are in the unsatisfiable core [2021-03-26 17:36:07,280 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 17:36:07,282 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:07,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:07,282 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:07,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:07,283 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:07,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:07,284 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:07,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:07,292 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:07,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:07,293 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:07,293 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:07,293 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:07,294 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:07,294 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:07,294 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:07,297 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:07,298 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 17:36:07,299 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:07,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 17:36:07,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 17:36:07,301 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:07,301 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 17:36:07,301 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:07,302 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 17:36:07,302 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 17:36:07,303 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:07,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 17:36:07,304 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:07,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 17:36:07,313 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:07,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 17:36:07,314 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:07,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 17:36:07,314 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:07,315 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 17:36:07,315 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:07,315 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 17:36:07,316 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:07,317 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 17:36:07,317 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:07,317 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 17:36:07,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 17:36:07,318 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:07,319 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 17:36:07,319 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:07,319 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 17:36:07,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 17:36:07,320 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:07,322 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:07,322 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:07,322 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:07,323 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:07,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:07,323 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:07,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:07,324 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:07,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:07,325 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:07,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:07,325 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:07,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:07,326 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:07,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:07,326 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:07,327 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:07,327 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:07,327 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:07,328 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:07,329 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 17:36:07,329 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:07,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:07,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 17:36:07,330 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:07,331 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 17:36:07,332 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:07,332 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 17:36:07,332 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:07,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:07,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 17:36:07,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 17:36:07,335 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:07,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:36:07,337 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:07,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:36:07,344 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:07,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:36:07,344 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:07,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:36:07,345 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:07,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:36:07,345 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:07,346 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:36:07,346 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:07,346 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:36:07,346 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:07,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:36:07,347 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:07,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:36:07,347 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:07,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:36:07,348 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:07,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:36:07,348 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:07,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:36:07,350 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:07,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:36:07,350 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:07,351 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:36:07,351 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:07,351 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:36:07,351 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:07,352 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:36:07,352 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:07,352 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:36:07,352 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:07,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:36:07,353 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:07,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:36:07,353 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:07,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:36:07,354 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:07,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:36:07,354 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:07,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:36:07,355 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:07,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:36:07,355 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:07,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:36:07,356 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:07,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:36:07,356 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:07,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:36:07,357 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:07,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:36:07,357 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:07,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:36:07,358 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:07,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:36:07,358 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:07,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:36:07,359 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:07,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:36:07,359 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:07,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:36:07,360 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:07,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:36:07,360 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:07,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:36:07,361 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:07,361 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:36:07,361 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:07,361 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:36:07,362 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:07,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:36:07,362 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:07,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:36:07,363 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:07,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:36:07,363 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-03-26 17:36:07,363 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 17:36:07,363 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 8 [2021-03-26 17:36:07,363 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778693785] [2021-03-26 17:36:07,364 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-26 17:36:07,364 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 17:36:07,364 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-26 17:36:07,364 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-03-26 17:36:07,365 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 46 [2021-03-26 17:36:07,365 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 68 transitions, 687 flow. Second operand has 9 states, 9 states have (on average 27.77777777777778) internal successors, (250), 9 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:36:07,365 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 17:36:07,365 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 46 [2021-03-26 17:36:07,365 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 17:36:07,876 INFO L129 PetriNetUnfolder]: 2095/3383 cut-off events. [2021-03-26 17:36:07,876 INFO L130 PetriNetUnfolder]: For 15015/15431 co-relation queries the response was YES. [2021-03-26 17:36:07,889 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17315 conditions, 3383 events. 2095/3383 cut-off events. For 15015/15431 co-relation queries the response was YES. Maximal size of possible extension queue 301. Compared 20225 event pairs, 264 based on Foata normal form. 182/3337 useless extension candidates. Maximal degree in co-relation 16943. Up to 1904 conditions per place. [2021-03-26 17:36:07,918 INFO L132 encePairwiseOnDemand]: 40/46 looper letters, 67 selfloop transitions, 105 changer transitions 1/195 dead transitions. [2021-03-26 17:36:07,918 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 195 transitions, 2397 flow [2021-03-26 17:36:07,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-26 17:36:07,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-26 17:36:07,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 375 transitions. [2021-03-26 17:36:07,920 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6793478260869565 [2021-03-26 17:36:07,920 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 375 transitions. [2021-03-26 17:36:07,920 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 375 transitions. [2021-03-26 17:36:07,920 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 17:36:07,920 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 375 transitions. [2021-03-26 17:36:07,922 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 31.25) internal successors, (375), 12 states have internal predecessors, (375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:36:07,923 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 46.0) internal successors, (598), 13 states have internal predecessors, (598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:36:07,923 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 46.0) internal successors, (598), 13 states have internal predecessors, (598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:36:07,924 INFO L185 Difference]: Start difference. First operand has 45 places, 68 transitions, 687 flow. Second operand 12 states and 375 transitions. [2021-03-26 17:36:07,924 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 195 transitions, 2397 flow [2021-03-26 17:36:07,938 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 195 transitions, 2131 flow, removed 133 selfloop flow, removed 0 redundant places. [2021-03-26 17:36:07,942 INFO L241 Difference]: Finished difference. Result has 64 places, 172 transitions, 2108 flow [2021-03-26 17:36:07,943 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=597, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=37, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=2108, PETRI_PLACES=64, PETRI_TRANSITIONS=172} [2021-03-26 17:36:07,943 INFO L343 CegarLoopForPetriNet]: 27 programPoint places, 37 predicate places. [2021-03-26 17:36:07,943 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 17:36:07,943 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 64 places, 172 transitions, 2108 flow [2021-03-26 17:36:07,944 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 64 places, 172 transitions, 2108 flow [2021-03-26 17:36:07,945 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 63 places, 172 transitions, 2108 flow [2021-03-26 17:36:08,108 INFO L129 PetriNetUnfolder]: 946/1849 cut-off events. [2021-03-26 17:36:08,108 INFO L130 PetriNetUnfolder]: For 9121/9634 co-relation queries the response was YES. [2021-03-26 17:36:08,119 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9045 conditions, 1849 events. 946/1849 cut-off events. For 9121/9634 co-relation queries the response was YES. Maximal size of possible extension queue 199. Compared 12795 event pairs, 189 based on Foata normal form. 7/1710 useless extension candidates. Maximal degree in co-relation 8646. Up to 791 conditions per place. [2021-03-26 17:36:08,145 INFO L142 LiptonReduction]: Number of co-enabled transitions 1190 [2021-03-26 17:36:08,183 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 17:36:08,183 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 17:36:08,183 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 240 [2021-03-26 17:36:08,184 INFO L480 AbstractCegarLoop]: Abstraction has has 63 places, 172 transitions, 2108 flow [2021-03-26 17:36:08,184 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 27.77777777777778) internal successors, (250), 9 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:36:08,184 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 17:36:08,184 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 17:36:08,399 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-03-26 17:36:08,400 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 17:36:08,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 17:36:08,400 INFO L82 PathProgramCache]: Analyzing trace with hash 665674093, now seen corresponding path program 3 times [2021-03-26 17:36:08,400 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 17:36:08,400 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955855984] [2021-03-26 17:36:08,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 17:36:08,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 17:36:08,437 INFO L142 QuantifierPusher]: treesize reduction 12, result has 45.5 percent of original size [2021-03-26 17:36:08,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 17:36:08,444 INFO L142 QuantifierPusher]: treesize reduction 8, result has 60.0 percent of original size [2021-03-26 17:36:08,445 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 17:36:08,452 INFO L142 QuantifierPusher]: treesize reduction 8, result has 60.0 percent of original size [2021-03-26 17:36:08,453 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 17:36:08,462 INFO L142 QuantifierPusher]: treesize reduction 4, result has 69.2 percent of original size [2021-03-26 17:36:08,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 17:36:08,470 INFO L142 QuantifierPusher]: treesize reduction 4, result has 69.2 percent of original size [2021-03-26 17:36:08,471 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 17:36:08,480 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:08,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:36:08,481 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-26 17:36:08,481 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955855984] [2021-03-26 17:36:08,481 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2054721127] [2021-03-26 17:36:08,481 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 17:36:08,515 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-03-26 17:36:08,516 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-26 17:36:08,516 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 6 conjunts are in the unsatisfiable core [2021-03-26 17:36:08,518 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 17:36:08,518 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:08,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:08,520 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:08,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:08,520 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:08,521 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:08,521 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:08,521 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:08,530 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:08,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:08,531 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:08,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:08,531 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:08,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:08,532 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:08,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:08,533 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:08,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:08,533 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:08,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:08,534 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:08,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:08,535 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:08,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:08,535 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:08,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:08,536 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:08,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:08,536 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:08,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:08,537 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:08,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:08,538 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:08,539 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 17:36:08,539 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:08,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 17:36:08,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 17:36:08,540 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:08,542 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 17:36:08,542 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:08,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 17:36:08,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 17:36:08,544 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:08,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 17:36:08,545 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:08,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 17:36:08,555 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:08,557 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 17:36:08,558 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:08,558 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 17:36:08,560 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 17:36:08,560 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:08,567 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 17:36:08,568 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:08,568 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 17:36:08,569 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:08,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 17:36:08,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 17:36:08,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-26 17:36:08,571 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:08,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 17:36:08,572 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:08,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 17:36:08,580 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:08,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 17:36:08,581 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:08,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 17:36:08,582 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:08,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 17:36:08,582 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:08,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 17:36:08,583 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:08,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 17:36:08,583 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:08,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 17:36:08,584 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:08,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 17:36:08,584 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:08,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 17:36:08,589 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:08,590 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 17:36:08,590 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:08,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 17:36:08,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 17:36:08,591 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:08,592 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 17:36:08,592 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:08,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 17:36:08,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 17:36:08,594 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:08,595 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:36:08,595 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:08,595 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:36:08,604 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:08,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:36:08,605 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:08,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:36:08,605 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:08,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:36:08,606 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:08,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:36:08,606 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:08,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:36:08,607 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:08,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:36:08,607 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:08,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:36:08,608 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:08,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:36:08,608 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:08,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:36:08,609 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:08,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:36:08,609 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:08,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:36:08,610 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:08,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:36:08,610 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:08,611 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:36:08,611 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:08,611 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:36:08,611 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:08,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:36:08,612 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:08,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:36:08,613 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:08,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:36:08,613 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:08,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:36:08,614 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:08,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:36:08,614 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:08,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:36:08,615 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:08,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:36:08,615 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:08,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:36:08,616 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:08,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:36:08,616 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:08,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:36:08,617 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:08,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:36:08,617 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:08,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:36:08,618 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:08,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:36:08,618 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:08,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:36:08,619 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:08,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:36:08,619 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:08,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:36:08,620 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:08,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:36:08,620 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:08,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:36:08,622 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-03-26 17:36:08,622 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 17:36:08,622 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 10 [2021-03-26 17:36:08,625 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264384764] [2021-03-26 17:36:08,626 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-26 17:36:08,626 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 17:36:08,626 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-26 17:36:08,626 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2021-03-26 17:36:08,627 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 46 [2021-03-26 17:36:08,627 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 172 transitions, 2108 flow. Second operand has 11 states, 11 states have (on average 27.454545454545453) internal successors, (302), 11 states have internal predecessors, (302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:36:08,627 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 17:36:08,627 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 46 [2021-03-26 17:36:08,628 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 17:36:10,989 INFO L129 PetriNetUnfolder]: 8046/13281 cut-off events. [2021-03-26 17:36:10,990 INFO L130 PetriNetUnfolder]: For 88776/89975 co-relation queries the response was YES. [2021-03-26 17:36:11,134 INFO L84 FinitePrefix]: Finished finitePrefix Result has 76520 conditions, 13281 events. 8046/13281 cut-off events. For 88776/89975 co-relation queries the response was YES. Maximal size of possible extension queue 1031. Compared 100111 event pairs, 1023 based on Foata normal form. 1391/14134 useless extension candidates. Maximal degree in co-relation 75001. Up to 5457 conditions per place. [2021-03-26 17:36:11,253 INFO L132 encePairwiseOnDemand]: 39/46 looper letters, 277 selfloop transitions, 369 changer transitions 0/717 dead transitions. [2021-03-26 17:36:11,253 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 717 transitions, 10432 flow [2021-03-26 17:36:11,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-03-26 17:36:11,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2021-03-26 17:36:11,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 653 transitions. [2021-03-26 17:36:11,256 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6759834368530021 [2021-03-26 17:36:11,256 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 653 transitions. [2021-03-26 17:36:11,256 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 653 transitions. [2021-03-26 17:36:11,256 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 17:36:11,257 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 653 transitions. [2021-03-26 17:36:11,258 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 31.095238095238095) internal successors, (653), 21 states have internal predecessors, (653), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:36:11,260 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 46.0) internal successors, (1012), 22 states have internal predecessors, (1012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:36:11,260 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 46.0) internal successors, (1012), 22 states have internal predecessors, (1012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:36:11,260 INFO L185 Difference]: Start difference. First operand has 63 places, 172 transitions, 2108 flow. Second operand 21 states and 653 transitions. [2021-03-26 17:36:11,260 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 717 transitions, 10432 flow [2021-03-26 17:36:11,437 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 717 transitions, 9066 flow, removed 674 selfloop flow, removed 3 redundant places. [2021-03-26 17:36:11,451 INFO L241 Difference]: Finished difference. Result has 92 places, 587 transitions, 8119 flow [2021-03-26 17:36:11,451 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=1870, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=172, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=65, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=8119, PETRI_PLACES=92, PETRI_TRANSITIONS=587} [2021-03-26 17:36:11,451 INFO L343 CegarLoopForPetriNet]: 27 programPoint places, 65 predicate places. [2021-03-26 17:36:11,451 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 17:36:11,452 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 92 places, 587 transitions, 8119 flow [2021-03-26 17:36:11,452 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 92 places, 587 transitions, 8119 flow [2021-03-26 17:36:11,456 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 92 places, 587 transitions, 8119 flow [2021-03-26 17:36:12,818 INFO L129 PetriNetUnfolder]: 4753/9295 cut-off events. [2021-03-26 17:36:12,818 INFO L130 PetriNetUnfolder]: For 98720/101846 co-relation queries the response was YES. [2021-03-26 17:36:12,915 INFO L84 FinitePrefix]: Finished finitePrefix Result has 58649 conditions, 9295 events. 4753/9295 cut-off events. For 98720/101846 co-relation queries the response was YES. Maximal size of possible extension queue 960. Compared 84574 event pairs, 1088 based on Foata normal form. 401/8943 useless extension candidates. Maximal degree in co-relation 56822. Up to 3582 conditions per place. [2021-03-26 17:36:12,998 INFO L142 LiptonReduction]: Number of co-enabled transitions 2492 [2021-03-26 17:36:13,132 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 17:36:13,132 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 17:36:13,132 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1681 [2021-03-26 17:36:13,133 INFO L480 AbstractCegarLoop]: Abstraction has has 92 places, 587 transitions, 8119 flow [2021-03-26 17:36:13,133 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 27.454545454545453) internal successors, (302), 11 states have internal predecessors, (302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:36:13,133 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 17:36:13,133 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 17:36:13,355 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 17:36:13,356 INFO L428 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 17:36:13,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 17:36:13,357 INFO L82 PathProgramCache]: Analyzing trace with hash -900137069, now seen corresponding path program 4 times [2021-03-26 17:36:13,357 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 17:36:13,357 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814627843] [2021-03-26 17:36:13,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 17:36:13,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 17:36:13,387 INFO L142 QuantifierPusher]: treesize reduction 8, result has 46.7 percent of original size [2021-03-26 17:36:13,388 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:13,393 INFO L142 QuantifierPusher]: treesize reduction 4, result has 69.2 percent of original size [2021-03-26 17:36:13,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 17:36:13,399 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:13,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 17:36:13,404 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:13,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:36:13,409 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:13,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:36:13,409 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-26 17:36:13,409 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814627843] [2021-03-26 17:36:13,409 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [189530394] [2021-03-26 17:36:13,409 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 17:36:13,444 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-03-26 17:36:13,444 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-26 17:36:13,445 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 6 conjunts are in the unsatisfiable core [2021-03-26 17:36:13,447 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 17:36:13,447 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:13,448 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:13,448 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:13,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:13,449 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:13,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:13,450 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:13,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:13,459 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:13,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:13,460 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:13,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:13,461 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:13,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:13,462 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:13,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:13,463 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:13,465 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 17:36:13,466 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:13,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 17:36:13,467 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 17:36:13,467 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:13,468 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 17:36:13,468 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:13,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 17:36:13,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 17:36:13,469 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:13,472 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 17:36:13,473 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:13,473 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 17:36:13,483 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:13,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 17:36:13,484 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:13,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 17:36:13,485 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:13,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 17:36:13,485 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:13,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 17:36:13,486 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:13,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 17:36:13,487 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:13,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 17:36:13,488 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:13,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 17:36:13,488 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:13,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 17:36:13,489 INFO L142 QuantifierPusher]: treesize reduction 1, result has 92.3 percent of original size [2021-03-26 17:36:13,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 17:36:13,492 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:13,493 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 17:36:13,493 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:13,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 17:36:13,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 17:36:13,494 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:13,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 17:36:13,496 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:13,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 17:36:13,497 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:13,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 17:36:13,497 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:13,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 17:36:13,498 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:13,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 17:36:13,499 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:13,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-26 17:36:13,500 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:13,500 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 17:36:13,501 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:13,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 17:36:13,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 17:36:13,502 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:13,502 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 17:36:13,503 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:13,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 17:36:13,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 17:36:13,504 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:13,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:36:13,505 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:13,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:36:13,506 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:13,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:36:13,506 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:13,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:36:13,507 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:13,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:36:13,507 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:13,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:36:13,508 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:13,509 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:36:13,509 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:13,509 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:36:13,509 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:13,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:36:13,510 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:13,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:36:13,511 INFO L142 QuantifierPusher]: treesize reduction 7, result has 12.5 percent of original size [2021-03-26 17:36:13,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:36:13,511 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:13,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:36:13,512 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:13,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:36:13,513 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:13,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:36:13,513 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:13,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:36:13,514 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:13,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:36:13,514 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:13,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:36:13,515 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:13,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:36:13,516 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:13,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:36:13,516 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:13,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:36:13,517 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:13,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:36:13,517 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:13,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:36:13,518 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:13,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:36:13,518 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:13,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:36:13,519 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:13,519 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:36:13,519 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:13,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:36:13,520 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:13,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:36:13,522 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:13,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:36:13,522 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:13,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:36:13,524 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:13,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:36:13,524 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:13,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:36:13,525 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:13,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:36:13,525 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:13,526 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:36:13,526 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:13,526 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:36:13,527 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:13,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:36:13,527 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-26 17:36:13,527 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 17:36:13,527 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2021-03-26 17:36:13,528 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150843591] [2021-03-26 17:36:13,529 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-26 17:36:13,529 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 17:36:13,529 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-26 17:36:13,529 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-03-26 17:36:13,530 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 31 out of 46 [2021-03-26 17:36:13,530 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 587 transitions, 8119 flow. Second operand has 8 states, 8 states have (on average 32.125) internal successors, (257), 8 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:36:13,530 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 17:36:13,530 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 31 of 46 [2021-03-26 17:36:13,530 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 17:36:17,084 INFO L129 PetriNetUnfolder]: 12837/22486 cut-off events. [2021-03-26 17:36:17,084 INFO L130 PetriNetUnfolder]: For 261618/268800 co-relation queries the response was YES. [2021-03-26 17:36:17,340 INFO L84 FinitePrefix]: Finished finitePrefix Result has 155899 conditions, 22486 events. 12837/22486 cut-off events. For 261618/268800 co-relation queries the response was YES. Maximal size of possible extension queue 1981. Compared 202616 event pairs, 2590 based on Foata normal form. 1062/21820 useless extension candidates. Maximal degree in co-relation 152735. Up to 9959 conditions per place. [2021-03-26 17:36:17,511 INFO L132 encePairwiseOnDemand]: 41/46 looper letters, 843 selfloop transitions, 414 changer transitions 3/1498 dead transitions. [2021-03-26 17:36:17,512 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 1498 transitions, 23426 flow [2021-03-26 17:36:17,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-26 17:36:17,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-03-26 17:36:17,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 304 transitions. [2021-03-26 17:36:17,513 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7342995169082126 [2021-03-26 17:36:17,513 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 304 transitions. [2021-03-26 17:36:17,513 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 304 transitions. [2021-03-26 17:36:17,514 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 17:36:17,514 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 304 transitions. [2021-03-26 17:36:17,514 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 33.77777777777778) internal successors, (304), 9 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:36:17,515 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 46.0) internal successors, (460), 10 states have internal predecessors, (460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:36:17,515 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 46.0) internal successors, (460), 10 states have internal predecessors, (460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:36:17,516 INFO L185 Difference]: Start difference. First operand has 92 places, 587 transitions, 8119 flow. Second operand 9 states and 304 transitions. [2021-03-26 17:36:17,516 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 1498 transitions, 23426 flow [2021-03-26 17:36:18,370 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 1498 transitions, 22011 flow, removed 665 selfloop flow, removed 3 redundant places. [2021-03-26 17:36:18,391 INFO L241 Difference]: Finished difference. Result has 102 places, 996 transitions, 14980 flow [2021-03-26 17:36:18,392 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=7263, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=587, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=327, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=14980, PETRI_PLACES=102, PETRI_TRANSITIONS=996} [2021-03-26 17:36:18,392 INFO L343 CegarLoopForPetriNet]: 27 programPoint places, 75 predicate places. [2021-03-26 17:36:18,392 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 17:36:18,392 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 102 places, 996 transitions, 14980 flow [2021-03-26 17:36:18,392 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 102 places, 996 transitions, 14980 flow [2021-03-26 17:36:18,400 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 102 places, 996 transitions, 14980 flow [2021-03-26 17:36:21,371 INFO L129 PetriNetUnfolder]: 10910/20226 cut-off events. [2021-03-26 17:36:21,371 INFO L130 PetriNetUnfolder]: For 298381/308226 co-relation queries the response was YES. [2021-03-26 17:36:21,484 INFO L84 FinitePrefix]: Finished finitePrefix Result has 142029 conditions, 20226 events. 10910/20226 cut-off events. For 298381/308226 co-relation queries the response was YES. Maximal size of possible extension queue 1901. Compared 193336 event pairs, 2394 based on Foata normal form. 1341/20242 useless extension candidates. Maximal degree in co-relation 138547. Up to 8441 conditions per place. [2021-03-26 17:36:21,674 INFO L142 LiptonReduction]: Number of co-enabled transitions 3916 [2021-03-26 17:36:21,886 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 17:36:21,886 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 17:36:21,886 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 3494 [2021-03-26 17:36:21,887 INFO L480 AbstractCegarLoop]: Abstraction has has 102 places, 996 transitions, 14980 flow [2021-03-26 17:36:21,887 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 32.125) internal successors, (257), 8 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:36:21,887 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 17:36:21,887 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 17:36:22,089 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 17:36:22,089 INFO L428 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 17:36:22,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 17:36:22,090 INFO L82 PathProgramCache]: Analyzing trace with hash 1640175217, now seen corresponding path program 5 times [2021-03-26 17:36:22,090 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 17:36:22,090 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163491819] [2021-03-26 17:36:22,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 17:36:22,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 17:36:22,116 INFO L142 QuantifierPusher]: treesize reduction 16, result has 44.8 percent of original size [2021-03-26 17:36:22,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 17:36:22,124 INFO L142 QuantifierPusher]: treesize reduction 8, result has 55.6 percent of original size [2021-03-26 17:36:22,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 17:36:22,131 INFO L142 QuantifierPusher]: treesize reduction 8, result has 60.0 percent of original size [2021-03-26 17:36:22,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 17:36:22,140 INFO L142 QuantifierPusher]: treesize reduction 8, result has 55.6 percent of original size [2021-03-26 17:36:22,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 17:36:22,153 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-26 17:36:22,153 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:22,161 INFO L142 QuantifierPusher]: treesize reduction 12, result has 7.7 percent of original size [2021-03-26 17:36:22,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:36:22,162 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:22,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:36:22,164 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-26 17:36:22,164 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [163491819] [2021-03-26 17:36:22,164 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [919463263] [2021-03-26 17:36:22,164 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 17:36:22,195 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2021-03-26 17:36:22,195 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-26 17:36:22,196 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 8 conjunts are in the unsatisfiable core [2021-03-26 17:36:22,197 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 17:36:22,197 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:22,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 17:36:22,199 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:22,199 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 17:36:22,200 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:22,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:22,201 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 17:36:22,201 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:22,202 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:22,202 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-26 17:36:22,205 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:22,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:22,207 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:22,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:22,216 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:22,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:22,216 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:22,217 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:22,217 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:22,217 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:22,218 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:22,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:22,218 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:22,219 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:22,219 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:22,219 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:22,220 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:22,220 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:22,221 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:22,221 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:22,221 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:22,222 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:22,222 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:22,222 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:22,223 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:22,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:22,223 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:22,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:22,224 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:22,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:22,225 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:22,225 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:22,225 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:22,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:22,226 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:22,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:22,227 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:22,228 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 17:36:22,228 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:22,229 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 17:36:22,229 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 17:36:22,230 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:22,230 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 17:36:22,230 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:22,231 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 17:36:22,231 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 17:36:22,231 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:22,232 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 17:36:22,233 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:22,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 17:36:22,243 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:22,243 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 17:36:22,244 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:22,244 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 17:36:22,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 17:36:22,245 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:22,245 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 17:36:22,246 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:22,246 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 17:36:22,247 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 17:36:22,247 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:22,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:22,248 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:22,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:22,249 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:22,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:22,250 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:22,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:22,250 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:22,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:22,251 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:22,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:22,252 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:22,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:22,253 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:22,253 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:22,253 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:22,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:22,254 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:22,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:22,255 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:22,255 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:22,255 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:22,256 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:22,256 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:22,256 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:22,257 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:22,257 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:22,258 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:22,258 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 17:36:22,259 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:22,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:22,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 17:36:22,260 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:22,260 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 17:36:22,261 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:22,261 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 17:36:22,261 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:22,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:36:22,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 17:36:22,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 17:36:22,263 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:22,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:36:22,264 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:22,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:36:22,272 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:22,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:36:22,273 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:22,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:36:22,273 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:22,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:36:22,274 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:22,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:36:22,274 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:22,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:36:22,275 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:22,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:36:22,275 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:22,276 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:36:22,276 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:22,276 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:36:22,277 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:22,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:36:22,277 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:22,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:36:22,278 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:22,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:36:22,278 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:22,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:36:22,279 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:22,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:36:22,279 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:22,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:36:22,280 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:22,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:36:22,280 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:22,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:36:22,281 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:22,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:36:22,282 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:22,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:36:22,282 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:22,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:36:22,283 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:22,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:36:22,283 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:22,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:36:22,284 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:22,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:36:22,284 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:36:22,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:36:22,285 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-26 17:36:22,285 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 17:36:22,285 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 8 [2021-03-26 17:36:22,285 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623257066] [2021-03-26 17:36:22,286 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-03-26 17:36:22,286 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 17:36:22,286 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-03-26 17:36:22,286 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-03-26 17:36:22,287 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 46 [2021-03-26 17:36:22,287 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 996 transitions, 14980 flow. Second operand has 9 states, 9 states have (on average 23.11111111111111) internal successors, (208), 9 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:36:22,287 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 17:36:22,287 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 46 [2021-03-26 17:36:22,287 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 17:36:57,991 INFO L129 PetriNetUnfolder]: 91069/150206 cut-off events. [2021-03-26 17:36:57,991 INFO L130 PetriNetUnfolder]: For 2497128/2497235 co-relation queries the response was YES. [2021-03-26 17:36:59,111 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1206513 conditions, 150206 events. 91069/150206 cut-off events. For 2497128/2497235 co-relation queries the response was YES. Maximal size of possible extension queue 9538. Compared 1506755 event pairs, 5879 based on Foata normal form. 5710/155897 useless extension candidates. Maximal degree in co-relation 1187130. Up to 60423 conditions per place. [2021-03-26 17:37:00,108 INFO L132 encePairwiseOnDemand]: 38/46 looper letters, 5082 selfloop transitions, 1733 changer transitions 263/7087 dead transitions. [2021-03-26 17:37:00,108 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 7087 transitions, 125855 flow [2021-03-26 17:37:00,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-03-26 17:37:00,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2021-03-26 17:37:00,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 625 transitions. [2021-03-26 17:37:00,110 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6175889328063241 [2021-03-26 17:37:00,110 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 625 transitions. [2021-03-26 17:37:00,110 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 625 transitions. [2021-03-26 17:37:00,111 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 17:37:00,111 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 625 transitions. [2021-03-26 17:37:00,112 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 23 states, 22 states have (on average 28.40909090909091) internal successors, (625), 22 states have internal predecessors, (625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:37:00,114 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 23 states, 23 states have (on average 46.0) internal successors, (1058), 23 states have internal predecessors, (1058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:37:00,114 INFO L81 ComplementDD]: Finished complementDD. Result has 23 states, 23 states have (on average 46.0) internal successors, (1058), 23 states have internal predecessors, (1058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:37:00,114 INFO L185 Difference]: Start difference. First operand has 102 places, 996 transitions, 14980 flow. Second operand 22 states and 625 transitions. [2021-03-26 17:37:00,114 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 7087 transitions, 125855 flow [2021-03-26 17:37:44,929 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 7087 transitions, 119426 flow, removed 3213 selfloop flow, removed 1 redundant places. [2021-03-26 17:37:45,004 INFO L241 Difference]: Finished difference. Result has 141 places, 2896 transitions, 47027 flow [2021-03-26 17:37:45,005 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=14107, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=996, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=286, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=666, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=47027, PETRI_PLACES=141, PETRI_TRANSITIONS=2896} [2021-03-26 17:37:45,005 INFO L343 CegarLoopForPetriNet]: 27 programPoint places, 114 predicate places. [2021-03-26 17:37:45,005 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 17:37:45,005 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 141 places, 2896 transitions, 47027 flow [2021-03-26 17:37:45,006 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 141 places, 2896 transitions, 47027 flow [2021-03-26 17:37:45,031 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 141 places, 2896 transitions, 47027 flow [2021-03-26 17:38:06,004 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([119] L34-1-->thread2EXIT: Formula: (not (< v_i2_16 v_N2_6)) InVars {i2=v_i2_16, N2=v_N2_6} OutVars{i2=v_i2_16, N2=v_N2_6} AuxVars[] AssignedVars[][2174], [Black: 492#(and (= M2 N2) (= M2 N1) (<= (+ i2 1) M2) (<= (+ i2 1) i1)), Black: 478#(and (= M2 N2) (<= (+ i2 1) M2) (<= N1 M2) (< (+ j2 1) M2) (<= (+ j2 1) i1)), 257#(and (<= counter 0) (<= 0 counter)), Black: 135#(and (<= (+ j1 1) N1) (= M1 N1)), 11#thread2EXITtrue, Black: 320#(and (<= j1 i1) (= M1 N1)), Black: 384#(and (<= N1 N2) (<= (+ j1 1) N1) (<= (+ j1 1) i1) (<= i2 i1) (= M1 N1)), 14#L74true, Black: 386#(and (<= N1 N2) (< i2 N2) (<= j1 i1) (<= (+ i2 1) i1) (= M1 N1)), Black: 390#(and (<= N1 N2) (<= i2 i1) (<= j1 i1) (= M1 N1)), Black: 392#(and (<= N1 N2) (< i2 N2) (<= (+ i2 1) i1)), Black: 394#(and (<= (+ j1 1) N1) (<= (+ j1 1) i1) (= M1 N1)), Black: 382#(and (<= N1 N2) (<= (+ j1 1) N1) (< i2 N2) (<= (+ j1 1) i1) (<= (+ i2 1) i1) (= M1 N1)), 404#true, 25#thread3EXITtrue, 28#L23-1true, 31#thread4EXITtrue, Black: 672#(and (<= N1 j1) (<= j2 j1) (= M2 N1) (< i2 N2) (<= M1 N2) (<= i2 j1) (= M1 N1)), Black: 674#(and (<= N1 j1) (= M2 N1) (<= M1 N2) (<= (+ j2 1) j1) (<= i2 j1) (= M1 N1)), Black: 676#(and (<= j2 j1) (= M2 N1) (<= M1 N2) (<= i2 j1) (= M1 N1)), Black: 678#(and (<= N1 j1) (<= j2 j1) (= M2 N1) (<= M1 N2) (<= i2 j1) (= M1 N1)), Black: 680#(and (<= N1 j1) (= M2 N1) (<= (+ j2 1) j1) (= M1 N1)), Black: 682#(and (<= N1 j1) (<= j2 j1) (= M2 N1) (<= M1 N2) (<= i2 (+ j1 1)) (= M1 N1)), Black: 50#(= counter 0), 53#true, Black: 684#(and (<= N1 j1) (<= j2 j1) (= M2 N1) (= M1 N1)), Black: 656#(and (<= j2 j1) (= M2 N1) (< i2 N2) (<= M1 N2) (<= i2 j1) (= M1 N1)), Black: 593#(and (<= j2 j1) (= M2 N1) (= M1 N1)), Black: 594#(and (= M2 N1) (<= (+ j2 1) j1) (= M1 N1)), Black: 658#(and (<= j2 j1) (= M2 N1) (<= M1 N2) (<= i2 (+ j1 1)) (= M1 N1)), Black: 660#(and (= M2 N1) (< i2 N2) (<= M1 N2) (<= (+ j2 1) j1) (<= i2 j1) (= M1 N1)), Black: 662#(and (= M2 N1) (<= M1 N2) (<= (+ j2 1) j1) (<= i2 j1) (= M1 N1)), Black: 599#(and (<= M1 N2) (<= i2 j1)), Black: 55#(and (= i2 i1) (= N2 N1)), Black: 664#(and (= M2 N1) (<= M1 N2) (<= i2 (+ j1 1)) (<= (+ j2 1) j1) (= M1 N1)), Black: 666#(and (<= N1 j1) (= M2 N1) (< i2 N2) (<= M1 N2) (<= (+ j2 1) j1) (<= i2 j1) (= M1 N1)), Black: 668#(and (< i2 N2) (<= M1 N2) (<= i2 j1)), Black: 190#(and (< i1 N1) (<= i1 j1) (<= M1 N1)), Black: 670#(and (<= N1 j1) (= M2 N1) (<= M1 N2) (<= i2 (+ j1 1)) (<= (+ j2 1) j1) (= M1 N1)), 579#(and (<= M1 j1) (<= i1 j1) (= M1 N1)), Black: 64#(and (= M2 M1) (= j1 0) (= j2 0)), 325#(and (<= N1 N2) (<= i2 i1)), Black: 577#(and (<= M1 (+ j1 1)) (<= i1 (+ j1 1)) (= M1 N1)), Black: 517#(and (<= i1 (+ j1 1)) (= M1 N1)), Black: 581#(and (<= i1 j1) (= M1 N1)), Black: 583#(and (<= M1 j1) (<= i1 (+ j1 1)) (= M1 N1)), 615#(and (<= M1 N2) (<= i2 (+ j1 1))), Black: 480#(and (<= N1 M2) (< (+ j2 1) M2) (<= (+ j2 1) i1)), Black: 498#(and (= M2 N2) (< j2 M2) (<= (+ i2 1) M2) (<= N1 M2) (<= (+ j2 1) i1)), Black: 482#(and (<= j2 i1) (< j2 M2) (<= N1 M2)), Black: 500#(and (= M2 N2) (<= j2 i1) (<= (+ i2 1) M2) (<= N1 M2)), Black: 120#(and (<= j2 j1) (= M2 M1) (<= (+ j2 1) M1)), Black: 486#(and (= M2 N2) (<= j2 i1) (< j2 M2) (= M2 N1) (<= (+ i2 2) N1) (<= (+ i2 1) i1)), Black: 488#(and (= M2 N2) (<= j2 i1) (< j2 M2) (<= (+ i2 1) M2) (<= N1 M2)), Black: 490#(and (= M2 N2) (< j2 M2) (= M2 N1) (<= (+ i2 2) N1) (<= (+ j2 1) i1) (<= (+ i2 1) i1)), Black: 474#(and (= M2 N2) (= M2 N1) (< (+ j2 1) M2) (<= (+ i2 2) N1) (<= (+ j2 1) i1) (<= (+ i2 1) i1)), Black: 410#(and (= M2 N2) (<= (+ i2 1) M2)), Black: 251#(and (<= N1 N2) (= M2 N2) (<= i2 j2) (<= (+ i2 1) M2) (<= i2 i1)), Black: 476#(and (< j2 M2) (<= N1 M2) (<= (+ j2 1) i1))]) [2021-03-26 17:38:06,004 INFO L384 tUnfolder$Statistics]: this new event has 18 ancestors and is cut-off event [2021-03-26 17:38:06,004 INFO L387 tUnfolder$Statistics]: existing Event has 16 ancestors and is cut-off event [2021-03-26 17:38:06,004 INFO L387 tUnfolder$Statistics]: existing Event has 14 ancestors and is cut-off event [2021-03-26 17:38:06,004 INFO L387 tUnfolder$Statistics]: existing Event has 14 ancestors and is cut-off event [2021-03-26 17:38:13,027 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([123] L57-1-->thread4EXIT: Formula: (not (< v_j2_20 v_M2_6)) InVars {j2=v_j2_20, M2=v_M2_6} OutVars{j2=v_j2_20, M2=v_M2_6} AuxVars[] AssignedVars[][1948], [Black: 492#(and (= M2 N2) (= M2 N1) (<= (+ i2 1) M2) (<= (+ i2 1) i1)), Black: 478#(and (= M2 N2) (<= (+ i2 1) M2) (<= N1 M2) (< (+ j2 1) M2) (<= (+ j2 1) i1)), 519#(<= M1 j1), Black: 135#(and (<= (+ j1 1) N1) (= M1 N1)), 11#thread2EXITtrue, 12#thread1EXITtrue, Black: 384#(and (<= N1 N2) (<= (+ j1 1) N1) (<= (+ j1 1) i1) (<= i2 i1) (= M1 N1)), 14#L74true, Black: 386#(and (<= N1 N2) (< i2 N2) (<= j1 i1) (<= (+ i2 1) i1) (= M1 N1)), Black: 325#(and (<= N1 N2) (<= i2 i1)), Black: 390#(and (<= N1 N2) (<= i2 i1) (<= j1 i1) (= M1 N1)), Black: 392#(and (<= N1 N2) (< i2 N2) (<= (+ i2 1) i1)), Black: 394#(and (<= (+ j1 1) N1) (<= (+ j1 1) i1) (= M1 N1)), Black: 382#(and (<= N1 N2) (<= (+ j1 1) N1) (< i2 N2) (<= (+ j1 1) i1) (<= (+ i2 1) i1) (= M1 N1)), 404#true, 25#thread3EXITtrue, 31#thread4EXITtrue, 684#(and (<= N1 j1) (<= j2 j1) (= M2 N1) (= M1 N1)), Black: 672#(and (<= N1 j1) (<= j2 j1) (= M2 N1) (< i2 N2) (<= M1 N2) (<= i2 j1) (= M1 N1)), Black: 674#(and (<= N1 j1) (= M2 N1) (<= M1 N2) (<= (+ j2 1) j1) (<= i2 j1) (= M1 N1)), Black: 676#(and (<= j2 j1) (= M2 N1) (<= M1 N2) (<= i2 j1) (= M1 N1)), Black: 678#(and (<= N1 j1) (<= j2 j1) (= M2 N1) (<= M1 N2) (<= i2 j1) (= M1 N1)), Black: 615#(and (<= M1 N2) (<= i2 (+ j1 1))), Black: 680#(and (<= N1 j1) (= M2 N1) (<= (+ j2 1) j1) (= M1 N1)), Black: 682#(and (<= N1 j1) (<= j2 j1) (= M2 N1) (<= M1 N2) (<= i2 (+ j1 1)) (= M1 N1)), Black: 50#(= counter 0), Black: 656#(and (<= j2 j1) (= M2 N1) (< i2 N2) (<= M1 N2) (<= i2 j1) (= M1 N1)), Black: 593#(and (<= j2 j1) (= M2 N1) (= M1 N1)), Black: 594#(and (= M2 N1) (<= (+ j2 1) j1) (= M1 N1)), 56#(<= N1 i1), Black: 658#(and (<= j2 j1) (= M2 N1) (<= M1 N2) (<= i2 (+ j1 1)) (= M1 N1)), Black: 660#(and (= M2 N1) (< i2 N2) (<= M1 N2) (<= (+ j2 1) j1) (<= i2 j1) (= M1 N1)), Black: 257#(and (<= counter 0) (<= 0 counter)), Black: 662#(and (= M2 N1) (<= M1 N2) (<= (+ j2 1) j1) (<= i2 j1) (= M1 N1)), Black: 599#(and (<= M1 N2) (<= i2 j1)), Black: 55#(and (= i2 i1) (= N2 N1)), Black: 664#(and (= M2 N1) (<= M1 N2) (<= i2 (+ j1 1)) (<= (+ j2 1) j1) (= M1 N1)), Black: 666#(and (<= N1 j1) (= M2 N1) (< i2 N2) (<= M1 N2) (<= (+ j2 1) j1) (<= i2 j1) (= M1 N1)), Black: 668#(and (< i2 N2) (<= M1 N2) (<= i2 j1)), Black: 670#(and (<= N1 j1) (= M2 N1) (<= M1 N2) (<= i2 (+ j1 1)) (<= (+ j2 1) j1) (= M1 N1)), 320#(and (<= j1 i1) (= M1 N1)), Black: 190#(and (< i1 N1) (<= i1 j1) (<= M1 N1)), Black: 64#(and (= M2 M1) (= j1 0) (= j2 0)), Black: 577#(and (<= M1 (+ j1 1)) (<= i1 (+ j1 1)) (= M1 N1)), Black: 579#(and (<= M1 j1) (<= i1 j1) (= M1 N1)), Black: 517#(and (<= i1 (+ j1 1)) (= M1 N1)), Black: 581#(and (<= i1 j1) (= M1 N1)), Black: 583#(and (<= M1 j1) (<= i1 (+ j1 1)) (= M1 N1)), Black: 480#(and (<= N1 M2) (< (+ j2 1) M2) (<= (+ j2 1) i1)), Black: 498#(and (= M2 N2) (< j2 M2) (<= (+ i2 1) M2) (<= N1 M2) (<= (+ j2 1) i1)), Black: 482#(and (<= j2 i1) (< j2 M2) (<= N1 M2)), Black: 500#(and (= M2 N2) (<= j2 i1) (<= (+ i2 1) M2) (<= N1 M2)), Black: 120#(and (<= j2 j1) (= M2 M1) (<= (+ j2 1) M1)), Black: 486#(and (= M2 N2) (<= j2 i1) (< j2 M2) (= M2 N1) (<= (+ i2 2) N1) (<= (+ i2 1) i1)), Black: 488#(and (= M2 N2) (<= j2 i1) (< j2 M2) (<= (+ i2 1) M2) (<= N1 M2)), Black: 490#(and (= M2 N2) (< j2 M2) (= M2 N1) (<= (+ i2 2) N1) (<= (+ j2 1) i1) (<= (+ i2 1) i1)), Black: 474#(and (= M2 N2) (= M2 N1) (< (+ j2 1) M2) (<= (+ i2 2) N1) (<= (+ j2 1) i1) (<= (+ i2 1) i1)), Black: 410#(and (= M2 N2) (<= (+ i2 1) M2)), Black: 251#(and (<= N1 N2) (= M2 N2) (<= i2 j2) (<= (+ i2 1) M2) (<= i2 i1)), Black: 476#(and (< j2 M2) (<= N1 M2) (<= (+ j2 1) i1)), 255#true, 127#(<= N1 i1)]) [2021-03-26 17:38:13,027 INFO L384 tUnfolder$Statistics]: this new event has 18 ancestors and is cut-off event [2021-03-26 17:38:13,027 INFO L387 tUnfolder$Statistics]: existing Event has 16 ancestors and is cut-off event [2021-03-26 17:38:13,027 INFO L387 tUnfolder$Statistics]: existing Event has 16 ancestors and is cut-off event [2021-03-26 17:38:13,027 INFO L387 tUnfolder$Statistics]: existing Event has 16 ancestors and is cut-off event [2021-03-26 17:38:13,033 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([123] L57-1-->thread4EXIT: Formula: (not (< v_j2_20 v_M2_6)) InVars {j2=v_j2_20, M2=v_M2_6} OutVars{j2=v_j2_20, M2=v_M2_6} AuxVars[] AssignedVars[][1948], [Black: 492#(and (= M2 N2) (= M2 N1) (<= (+ i2 1) M2) (<= (+ i2 1) i1)), Black: 478#(and (= M2 N2) (<= (+ i2 1) M2) (<= N1 M2) (< (+ j2 1) M2) (<= (+ j2 1) i1)), 519#(<= M1 j1), Black: 135#(and (<= (+ j1 1) N1) (= M1 N1)), 11#thread2EXITtrue, 12#thread1EXITtrue, Black: 320#(and (<= j1 i1) (= M1 N1)), Black: 384#(and (<= N1 N2) (<= (+ j1 1) N1) (<= (+ j1 1) i1) (<= i2 i1) (= M1 N1)), Black: 386#(and (<= N1 N2) (< i2 N2) (<= j1 i1) (<= (+ i2 1) i1) (= M1 N1)), 14#L74true, Black: 390#(and (<= N1 N2) (<= i2 i1) (<= j1 i1) (= M1 N1)), Black: 392#(and (<= N1 N2) (< i2 N2) (<= (+ i2 1) i1)), Black: 394#(and (<= (+ j1 1) N1) (<= (+ j1 1) i1) (= M1 N1)), Black: 382#(and (<= N1 N2) (<= (+ j1 1) N1) (< i2 N2) (<= (+ j1 1) i1) (<= (+ i2 1) i1) (= M1 N1)), 25#thread3EXITtrue, 414#(and (<= j2 i1) (<= N1 M2)), 31#thread4EXITtrue, 684#(and (<= N1 j1) (<= j2 j1) (= M2 N1) (= M1 N1)), Black: 672#(and (<= N1 j1) (<= j2 j1) (= M2 N1) (< i2 N2) (<= M1 N2) (<= i2 j1) (= M1 N1)), Black: 674#(and (<= N1 j1) (= M2 N1) (<= M1 N2) (<= (+ j2 1) j1) (<= i2 j1) (= M1 N1)), Black: 676#(and (<= j2 j1) (= M2 N1) (<= M1 N2) (<= i2 j1) (= M1 N1)), Black: 678#(and (<= N1 j1) (<= j2 j1) (= M2 N1) (<= M1 N2) (<= i2 j1) (= M1 N1)), Black: 615#(and (<= M1 N2) (<= i2 (+ j1 1))), Black: 680#(and (<= N1 j1) (= M2 N1) (<= (+ j2 1) j1) (= M1 N1)), Black: 682#(and (<= N1 j1) (<= j2 j1) (= M2 N1) (<= M1 N2) (<= i2 (+ j1 1)) (= M1 N1)), Black: 50#(= counter 0), Black: 656#(and (<= j2 j1) (= M2 N1) (< i2 N2) (<= M1 N2) (<= i2 j1) (= M1 N1)), Black: 593#(and (<= j2 j1) (= M2 N1) (= M1 N1)), 56#(<= N1 i1), Black: 594#(and (= M2 N1) (<= (+ j2 1) j1) (= M1 N1)), Black: 658#(and (<= j2 j1) (= M2 N1) (<= M1 N2) (<= i2 (+ j1 1)) (= M1 N1)), Black: 660#(and (= M2 N1) (< i2 N2) (<= M1 N2) (<= (+ j2 1) j1) (<= i2 j1) (= M1 N1)), Black: 662#(and (= M2 N1) (<= M1 N2) (<= (+ j2 1) j1) (<= i2 j1) (= M1 N1)), Black: 257#(and (<= counter 0) (<= 0 counter)), Black: 55#(and (= i2 i1) (= N2 N1)), Black: 599#(and (<= M1 N2) (<= i2 j1)), Black: 664#(and (= M2 N1) (<= M1 N2) (<= i2 (+ j1 1)) (<= (+ j2 1) j1) (= M1 N1)), Black: 666#(and (<= N1 j1) (= M2 N1) (< i2 N2) (<= M1 N2) (<= (+ j2 1) j1) (<= i2 j1) (= M1 N1)), Black: 668#(and (< i2 N2) (<= M1 N2) (<= i2 j1)), Black: 190#(and (< i1 N1) (<= i1 j1) (<= M1 N1)), Black: 670#(and (<= N1 j1) (= M2 N1) (<= M1 N2) (<= i2 (+ j1 1)) (<= (+ j2 1) j1) (= M1 N1)), Black: 64#(and (= M2 M1) (= j1 0) (= j2 0)), 325#(and (<= N1 N2) (<= i2 i1)), Black: 577#(and (<= M1 (+ j1 1)) (<= i1 (+ j1 1)) (= M1 N1)), Black: 579#(and (<= M1 j1) (<= i1 j1) (= M1 N1)), Black: 517#(and (<= i1 (+ j1 1)) (= M1 N1)), Black: 581#(and (<= i1 j1) (= M1 N1)), Black: 583#(and (<= M1 j1) (<= i1 (+ j1 1)) (= M1 N1)), Black: 480#(and (<= N1 M2) (< (+ j2 1) M2) (<= (+ j2 1) i1)), Black: 498#(and (= M2 N2) (< j2 M2) (<= (+ i2 1) M2) (<= N1 M2) (<= (+ j2 1) i1)), Black: 482#(and (<= j2 i1) (< j2 M2) (<= N1 M2)), Black: 500#(and (= M2 N2) (<= j2 i1) (<= (+ i2 1) M2) (<= N1 M2)), Black: 120#(and (<= j2 j1) (= M2 M1) (<= (+ j2 1) M1)), Black: 486#(and (= M2 N2) (<= j2 i1) (< j2 M2) (= M2 N1) (<= (+ i2 2) N1) (<= (+ i2 1) i1)), Black: 488#(and (= M2 N2) (<= j2 i1) (< j2 M2) (<= (+ i2 1) M2) (<= N1 M2)), Black: 490#(and (= M2 N2) (< j2 M2) (= M2 N1) (<= (+ i2 2) N1) (<= (+ j2 1) i1) (<= (+ i2 1) i1)), Black: 474#(and (= M2 N2) (= M2 N1) (< (+ j2 1) M2) (<= (+ i2 2) N1) (<= (+ j2 1) i1) (<= (+ i2 1) i1)), Black: 251#(and (<= N1 N2) (= M2 N2) (<= i2 j2) (<= (+ i2 1) M2) (<= i2 i1)), Black: 410#(and (= M2 N2) (<= (+ i2 1) M2)), 127#(<= N1 i1), Black: 476#(and (< j2 M2) (<= N1 M2) (<= (+ j2 1) i1)), 255#true]) [2021-03-26 17:38:13,033 INFO L384 tUnfolder$Statistics]: this new event has 18 ancestors and is cut-off event [2021-03-26 17:38:13,033 INFO L387 tUnfolder$Statistics]: existing Event has 17 ancestors and is cut-off event [2021-03-26 17:38:13,033 INFO L387 tUnfolder$Statistics]: existing Event has 18 ancestors and is cut-off event [2021-03-26 17:38:13,033 INFO L387 tUnfolder$Statistics]: existing Event has 18 ancestors and is cut-off event [2021-03-26 17:38:14,529 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([117] L46-1-->L46-1: Formula: (and (= v_counter_41 (+ v_counter_42 1)) (= (+ v_j1_13 1) v_j1_12) (< v_j1_13 v_M1_4)) InVars {counter=v_counter_42, j1=v_j1_13, M1=v_M1_4} OutVars{counter=v_counter_41, j1=v_j1_12, M1=v_M1_4} AuxVars[] AssignedVars[counter, j1][228], [Black: 492#(and (= M2 N2) (= M2 N1) (<= (+ i2 1) M2) (<= (+ i2 1) i1)), Black: 478#(and (= M2 N2) (<= (+ i2 1) M2) (<= N1 M2) (< (+ j2 1) M2) (<= (+ j2 1) i1)), 514#true, Black: 135#(and (<= (+ j1 1) N1) (= M1 N1)), 11#thread2EXITtrue, 12#thread1EXITtrue, Black: 320#(and (<= j1 i1) (= M1 N1)), Black: 384#(and (<= N1 N2) (<= (+ j1 1) N1) (<= (+ j1 1) i1) (<= i2 i1) (= M1 N1)), Black: 386#(and (<= N1 N2) (< i2 N2) (<= j1 i1) (<= (+ i2 1) i1) (= M1 N1)), 14#L74true, Black: 390#(and (<= N1 N2) (<= i2 i1) (<= j1 i1) (= M1 N1)), Black: 392#(and (<= N1 N2) (< i2 N2) (<= (+ i2 1) i1)), Black: 394#(and (<= (+ j1 1) N1) (<= (+ j1 1) i1) (= M1 N1)), Black: 382#(and (<= N1 N2) (<= (+ j1 1) N1) (< i2 N2) (<= (+ j1 1) i1) (<= (+ i2 1) i1) (= M1 N1)), 404#true, 20#L46-1true, 668#(and (< i2 N2) (<= M1 N2) (<= i2 j1)), 38#L57-1true, Black: 672#(and (<= N1 j1) (<= j2 j1) (= M2 N1) (< i2 N2) (<= M1 N2) (<= i2 j1) (= M1 N1)), Black: 674#(and (<= N1 j1) (= M2 N1) (<= M1 N2) (<= (+ j2 1) j1) (<= i2 j1) (= M1 N1)), Black: 676#(and (<= j2 j1) (= M2 N1) (<= M1 N2) (<= i2 j1) (= M1 N1)), Black: 678#(and (<= N1 j1) (<= j2 j1) (= M2 N1) (<= M1 N2) (<= i2 j1) (= M1 N1)), Black: 615#(and (<= M1 N2) (<= i2 (+ j1 1))), Black: 680#(and (<= N1 j1) (= M2 N1) (<= (+ j2 1) j1) (= M1 N1)), Black: 682#(and (<= N1 j1) (<= j2 j1) (= M2 N1) (<= M1 N2) (<= i2 (+ j1 1)) (= M1 N1)), Black: 50#(= counter 0), Black: 684#(and (<= N1 j1) (<= j2 j1) (= M2 N1) (= M1 N1)), Black: 656#(and (<= j2 j1) (= M2 N1) (< i2 N2) (<= M1 N2) (<= i2 j1) (= M1 N1)), Black: 593#(and (<= j2 j1) (= M2 N1) (= M1 N1)), Black: 594#(and (= M2 N1) (<= (+ j2 1) j1) (= M1 N1)), 56#(<= N1 i1), Black: 658#(and (<= j2 j1) (= M2 N1) (<= M1 N2) (<= i2 (+ j1 1)) (= M1 N1)), Black: 660#(and (= M2 N1) (< i2 N2) (<= M1 N2) (<= (+ j2 1) j1) (<= i2 j1) (= M1 N1)), Black: 662#(and (= M2 N1) (<= M1 N2) (<= (+ j2 1) j1) (<= i2 j1) (= M1 N1)), Black: 257#(and (<= counter 0) (<= 0 counter)), Black: 55#(and (= i2 i1) (= N2 N1)), Black: 599#(and (<= M1 N2) (<= i2 j1)), Black: 664#(and (= M2 N1) (<= M1 N2) (<= i2 (+ j1 1)) (<= (+ j2 1) j1) (= M1 N1)), Black: 666#(and (<= N1 j1) (= M2 N1) (< i2 N2) (<= M1 N2) (<= (+ j2 1) j1) (<= i2 j1) (= M1 N1)), Black: 670#(and (<= N1 j1) (= M2 N1) (<= M1 N2) (<= i2 (+ j1 1)) (<= (+ j2 1) j1) (= M1 N1)), Black: 190#(and (< i1 N1) (<= i1 j1) (<= M1 N1)), Black: 64#(and (= M2 M1) (= j1 0) (= j2 0)), 325#(and (<= N1 N2) (<= i2 i1)), Black: 577#(and (<= M1 (+ j1 1)) (<= i1 (+ j1 1)) (= M1 N1)), Black: 579#(and (<= M1 j1) (<= i1 j1) (= M1 N1)), Black: 517#(and (<= i1 (+ j1 1)) (= M1 N1)), Black: 581#(and (<= i1 j1) (= M1 N1)), Black: 583#(and (<= M1 j1) (<= i1 (+ j1 1)) (= M1 N1)), Black: 480#(and (<= N1 M2) (< (+ j2 1) M2) (<= (+ j2 1) i1)), Black: 498#(and (= M2 N2) (< j2 M2) (<= (+ i2 1) M2) (<= N1 M2) (<= (+ j2 1) i1)), Black: 482#(and (<= j2 i1) (< j2 M2) (<= N1 M2)), Black: 500#(and (= M2 N2) (<= j2 i1) (<= (+ i2 1) M2) (<= N1 M2)), Black: 120#(and (<= j2 j1) (= M2 M1) (<= (+ j2 1) M1)), Black: 486#(and (= M2 N2) (<= j2 i1) (< j2 M2) (= M2 N1) (<= (+ i2 2) N1) (<= (+ i2 1) i1)), Black: 488#(and (= M2 N2) (<= j2 i1) (< j2 M2) (<= (+ i2 1) M2) (<= N1 M2)), Black: 490#(and (= M2 N2) (< j2 M2) (= M2 N1) (<= (+ i2 2) N1) (<= (+ j2 1) i1) (<= (+ i2 1) i1)), Black: 474#(and (= M2 N2) (= M2 N1) (< (+ j2 1) M2) (<= (+ i2 2) N1) (<= (+ j2 1) i1) (<= (+ i2 1) i1)), Black: 251#(and (<= N1 N2) (= M2 N2) (<= i2 j2) (<= (+ i2 1) M2) (<= i2 i1)), Black: 410#(and (= M2 N2) (<= (+ i2 1) M2)), 127#(<= N1 i1), Black: 476#(and (< j2 M2) (<= N1 M2) (<= (+ j2 1) i1)), 255#true]) [2021-03-26 17:38:14,529 INFO L384 tUnfolder$Statistics]: this new event has 17 ancestors and is not cut-off event [2021-03-26 17:38:14,529 INFO L387 tUnfolder$Statistics]: existing Event has 17 ancestors and is not cut-off event [2021-03-26 17:38:14,529 INFO L387 tUnfolder$Statistics]: existing Event has 17 ancestors and is not cut-off event [2021-03-26 17:38:14,529 INFO L387 tUnfolder$Statistics]: existing Event has 17 ancestors and is not cut-off event [2021-03-26 17:38:14,547 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([123] L57-1-->thread4EXIT: Formula: (not (< v_j2_20 v_M2_6)) InVars {j2=v_j2_20, M2=v_M2_6} OutVars{j2=v_j2_20, M2=v_M2_6} AuxVars[] AssignedVars[][1948], [Black: 492#(and (= M2 N2) (= M2 N1) (<= (+ i2 1) M2) (<= (+ i2 1) i1)), Black: 478#(and (= M2 N2) (<= (+ i2 1) M2) (<= N1 M2) (< (+ j2 1) M2) (<= (+ j2 1) i1)), 514#true, Black: 135#(and (<= (+ j1 1) N1) (= M1 N1)), 11#thread2EXITtrue, 12#thread1EXITtrue, Black: 320#(and (<= j1 i1) (= M1 N1)), Black: 384#(and (<= N1 N2) (<= (+ j1 1) N1) (<= (+ j1 1) i1) (<= i2 i1) (= M1 N1)), Black: 386#(and (<= N1 N2) (< i2 N2) (<= j1 i1) (<= (+ i2 1) i1) (= M1 N1)), 14#L74true, Black: 390#(and (<= N1 N2) (<= i2 i1) (<= j1 i1) (= M1 N1)), Black: 392#(and (<= N1 N2) (< i2 N2) (<= (+ i2 1) i1)), Black: 394#(and (<= (+ j1 1) N1) (<= (+ j1 1) i1) (= M1 N1)), Black: 382#(and (<= N1 N2) (<= (+ j1 1) N1) (< i2 N2) (<= (+ j1 1) i1) (<= (+ i2 1) i1) (= M1 N1)), 404#true, 20#L46-1true, 31#thread4EXITtrue, Black: 672#(and (<= N1 j1) (<= j2 j1) (= M2 N1) (< i2 N2) (<= M1 N2) (<= i2 j1) (= M1 N1)), Black: 674#(and (<= N1 j1) (= M2 N1) (<= M1 N2) (<= (+ j2 1) j1) (<= i2 j1) (= M1 N1)), Black: 676#(and (<= j2 j1) (= M2 N1) (<= M1 N2) (<= i2 j1) (= M1 N1)), Black: 678#(and (<= N1 j1) (<= j2 j1) (= M2 N1) (<= M1 N2) (<= i2 j1) (= M1 N1)), Black: 615#(and (<= M1 N2) (<= i2 (+ j1 1))), Black: 680#(and (<= N1 j1) (= M2 N1) (<= (+ j2 1) j1) (= M1 N1)), Black: 682#(and (<= N1 j1) (<= j2 j1) (= M2 N1) (<= M1 N2) (<= i2 (+ j1 1)) (= M1 N1)), Black: 50#(= counter 0), Black: 684#(and (<= N1 j1) (<= j2 j1) (= M2 N1) (= M1 N1)), Black: 656#(and (<= j2 j1) (= M2 N1) (< i2 N2) (<= M1 N2) (<= i2 j1) (= M1 N1)), Black: 593#(and (<= j2 j1) (= M2 N1) (= M1 N1)), Black: 594#(and (= M2 N1) (<= (+ j2 1) j1) (= M1 N1)), 56#(<= N1 i1), Black: 658#(and (<= j2 j1) (= M2 N1) (<= M1 N2) (<= i2 (+ j1 1)) (= M1 N1)), Black: 660#(and (= M2 N1) (< i2 N2) (<= M1 N2) (<= (+ j2 1) j1) (<= i2 j1) (= M1 N1)), Black: 662#(and (= M2 N1) (<= M1 N2) (<= (+ j2 1) j1) (<= i2 j1) (= M1 N1)), Black: 257#(and (<= counter 0) (<= 0 counter)), Black: 55#(and (= i2 i1) (= N2 N1)), Black: 664#(and (= M2 N1) (<= M1 N2) (<= i2 (+ j1 1)) (<= (+ j2 1) j1) (= M1 N1)), Black: 666#(and (<= N1 j1) (= M2 N1) (< i2 N2) (<= M1 N2) (<= (+ j2 1) j1) (<= i2 j1) (= M1 N1)), Black: 668#(and (< i2 N2) (<= M1 N2) (<= i2 j1)), Black: 670#(and (<= N1 j1) (= M2 N1) (<= M1 N2) (<= i2 (+ j1 1)) (<= (+ j2 1) j1) (= M1 N1)), Black: 190#(and (< i1 N1) (<= i1 j1) (<= M1 N1)), 325#(and (<= N1 N2) (<= i2 i1)), Black: 64#(and (= M2 M1) (= j1 0) (= j2 0)), Black: 577#(and (<= M1 (+ j1 1)) (<= i1 (+ j1 1)) (= M1 N1)), Black: 579#(and (<= M1 j1) (<= i1 j1) (= M1 N1)), Black: 517#(and (<= i1 (+ j1 1)) (= M1 N1)), Black: 581#(and (<= i1 j1) (= M1 N1)), Black: 583#(and (<= M1 j1) (<= i1 (+ j1 1)) (= M1 N1)), 599#(and (<= M1 N2) (<= i2 j1)), Black: 480#(and (<= N1 M2) (< (+ j2 1) M2) (<= (+ j2 1) i1)), Black: 498#(and (= M2 N2) (< j2 M2) (<= (+ i2 1) M2) (<= N1 M2) (<= (+ j2 1) i1)), Black: 482#(and (<= j2 i1) (< j2 M2) (<= N1 M2)), Black: 500#(and (= M2 N2) (<= j2 i1) (<= (+ i2 1) M2) (<= N1 M2)), Black: 486#(and (= M2 N2) (<= j2 i1) (< j2 M2) (= M2 N1) (<= (+ i2 2) N1) (<= (+ i2 1) i1)), Black: 120#(and (<= j2 j1) (= M2 M1) (<= (+ j2 1) M1)), Black: 488#(and (= M2 N2) (<= j2 i1) (< j2 M2) (<= (+ i2 1) M2) (<= N1 M2)), Black: 490#(and (= M2 N2) (< j2 M2) (= M2 N1) (<= (+ i2 2) N1) (<= (+ j2 1) i1) (<= (+ i2 1) i1)), Black: 474#(and (= M2 N2) (= M2 N1) (< (+ j2 1) M2) (<= (+ i2 2) N1) (<= (+ j2 1) i1) (<= (+ i2 1) i1)), Black: 251#(and (<= N1 N2) (= M2 N2) (<= i2 j2) (<= (+ i2 1) M2) (<= i2 i1)), Black: 410#(and (= M2 N2) (<= (+ i2 1) M2)), 127#(<= N1 i1), Black: 476#(and (< j2 M2) (<= N1 M2) (<= (+ j2 1) i1)), 255#true]) [2021-03-26 17:38:14,547 INFO L384 tUnfolder$Statistics]: this new event has 17 ancestors and is not cut-off event [2021-03-26 17:38:14,547 INFO L387 tUnfolder$Statistics]: existing Event has 17 ancestors and is not cut-off event [2021-03-26 17:38:14,547 INFO L387 tUnfolder$Statistics]: existing Event has 17 ancestors and is not cut-off event [2021-03-26 17:38:14,547 INFO L387 tUnfolder$Statistics]: existing Event has 17 ancestors and is not cut-off event [2021-03-26 17:38:18,906 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([123] L57-1-->thread4EXIT: Formula: (not (< v_j2_20 v_M2_6)) InVars {j2=v_j2_20, M2=v_M2_6} OutVars{j2=v_j2_20, M2=v_M2_6} AuxVars[] AssignedVars[][1948], [Black: 492#(and (= M2 N2) (= M2 N1) (<= (+ i2 1) M2) (<= (+ i2 1) i1)), 257#(and (<= counter 0) (<= 0 counter)), Black: 478#(and (= M2 N2) (<= (+ i2 1) M2) (<= N1 M2) (< (+ j2 1) M2) (<= (+ j2 1) i1)), 514#true, Black: 135#(and (<= (+ j1 1) N1) (= M1 N1)), 11#thread2EXITtrue, Black: 320#(and (<= j1 i1) (= M1 N1)), 12#thread1EXITtrue, Black: 384#(and (<= N1 N2) (<= (+ j1 1) N1) (<= (+ j1 1) i1) (<= i2 i1) (= M1 N1)), 14#L74true, Black: 386#(and (<= N1 N2) (< i2 N2) (<= j1 i1) (<= (+ i2 1) i1) (= M1 N1)), Black: 325#(and (<= N1 N2) (<= i2 i1)), Black: 390#(and (<= N1 N2) (<= i2 i1) (<= j1 i1) (= M1 N1)), Black: 392#(and (<= N1 N2) (< i2 N2) (<= (+ i2 1) i1)), Black: 394#(and (<= (+ j1 1) N1) (<= (+ j1 1) i1) (= M1 N1)), Black: 382#(and (<= N1 N2) (<= (+ j1 1) N1) (< i2 N2) (<= (+ j1 1) i1) (<= (+ i2 1) i1) (= M1 N1)), 404#true, 20#L46-1true, 31#thread4EXITtrue, Black: 672#(and (<= N1 j1) (<= j2 j1) (= M2 N1) (< i2 N2) (<= M1 N2) (<= i2 j1) (= M1 N1)), Black: 674#(and (<= N1 j1) (= M2 N1) (<= M1 N2) (<= (+ j2 1) j1) (<= i2 j1) (= M1 N1)), Black: 676#(and (<= j2 j1) (= M2 N1) (<= M1 N2) (<= i2 j1) (= M1 N1)), Black: 678#(and (<= N1 j1) (<= j2 j1) (= M2 N1) (<= M1 N2) (<= i2 j1) (= M1 N1)), Black: 615#(and (<= M1 N2) (<= i2 (+ j1 1))), Black: 680#(and (<= N1 j1) (= M2 N1) (<= (+ j2 1) j1) (= M1 N1)), Black: 682#(and (<= N1 j1) (<= j2 j1) (= M2 N1) (<= M1 N2) (<= i2 (+ j1 1)) (= M1 N1)), Black: 50#(= counter 0), Black: 684#(and (<= N1 j1) (<= j2 j1) (= M2 N1) (= M1 N1)), Black: 656#(and (<= j2 j1) (= M2 N1) (< i2 N2) (<= M1 N2) (<= i2 j1) (= M1 N1)), Black: 593#(and (<= j2 j1) (= M2 N1) (= M1 N1)), Black: 594#(and (= M2 N1) (<= (+ j2 1) j1) (= M1 N1)), 56#(<= N1 i1), Black: 658#(and (<= j2 j1) (= M2 N1) (<= M1 N2) (<= i2 (+ j1 1)) (= M1 N1)), Black: 660#(and (= M2 N1) (< i2 N2) (<= M1 N2) (<= (+ j2 1) j1) (<= i2 j1) (= M1 N1)), Black: 662#(and (= M2 N1) (<= M1 N2) (<= (+ j2 1) j1) (<= i2 j1) (= M1 N1)), Black: 599#(and (<= M1 N2) (<= i2 j1)), Black: 55#(and (= i2 i1) (= N2 N1)), 316#true, Black: 664#(and (= M2 N1) (<= M1 N2) (<= i2 (+ j1 1)) (<= (+ j2 1) j1) (= M1 N1)), Black: 666#(and (<= N1 j1) (= M2 N1) (< i2 N2) (<= M1 N2) (<= (+ j2 1) j1) (<= i2 j1) (= M1 N1)), Black: 668#(and (< i2 N2) (<= M1 N2) (<= i2 j1)), Black: 670#(and (<= N1 j1) (= M2 N1) (<= M1 N2) (<= i2 (+ j1 1)) (<= (+ j2 1) j1) (= M1 N1)), Black: 190#(and (< i1 N1) (<= i1 j1) (<= M1 N1)), Black: 64#(and (= M2 M1) (= j1 0) (= j2 0)), Black: 577#(and (<= M1 (+ j1 1)) (<= i1 (+ j1 1)) (= M1 N1)), Black: 579#(and (<= M1 j1) (<= i1 j1) (= M1 N1)), Black: 517#(and (<= i1 (+ j1 1)) (= M1 N1)), Black: 581#(and (<= i1 j1) (= M1 N1)), Black: 583#(and (<= M1 j1) (<= i1 (+ j1 1)) (= M1 N1)), 590#true, Black: 480#(and (<= N1 M2) (< (+ j2 1) M2) (<= (+ j2 1) i1)), Black: 498#(and (= M2 N2) (< j2 M2) (<= (+ i2 1) M2) (<= N1 M2) (<= (+ j2 1) i1)), Black: 482#(and (<= j2 i1) (< j2 M2) (<= N1 M2)), Black: 500#(and (= M2 N2) (<= j2 i1) (<= (+ i2 1) M2) (<= N1 M2)), Black: 486#(and (= M2 N2) (<= j2 i1) (< j2 M2) (= M2 N1) (<= (+ i2 2) N1) (<= (+ i2 1) i1)), Black: 120#(and (<= j2 j1) (= M2 M1) (<= (+ j2 1) M1)), Black: 488#(and (= M2 N2) (<= j2 i1) (< j2 M2) (<= (+ i2 1) M2) (<= N1 M2)), Black: 490#(and (= M2 N2) (< j2 M2) (= M2 N1) (<= (+ i2 2) N1) (<= (+ j2 1) i1) (<= (+ i2 1) i1)), Black: 474#(and (= M2 N2) (= M2 N1) (< (+ j2 1) M2) (<= (+ i2 2) N1) (<= (+ j2 1) i1) (<= (+ i2 1) i1)), Black: 251#(and (<= N1 N2) (= M2 N2) (<= i2 j2) (<= (+ i2 1) M2) (<= i2 i1)), Black: 410#(and (= M2 N2) (<= (+ i2 1) M2)), Black: 476#(and (< j2 M2) (<= N1 M2) (<= (+ j2 1) i1)), 127#(<= N1 i1)]) [2021-03-26 17:38:18,906 INFO L384 tUnfolder$Statistics]: this new event has 20 ancestors and is cut-off event [2021-03-26 17:38:18,906 INFO L387 tUnfolder$Statistics]: existing Event has 16 ancestors and is cut-off event [2021-03-26 17:38:18,906 INFO L387 tUnfolder$Statistics]: existing Event has 18 ancestors and is cut-off event [2021-03-26 17:38:18,906 INFO L387 tUnfolder$Statistics]: existing Event has 18 ancestors and is cut-off event [2021-03-26 17:38:23,251 INFO L129 PetriNetUnfolder]: 56551/113052 cut-off events. [2021-03-26 17:38:23,251 INFO L130 PetriNetUnfolder]: For 3466229/3523450 co-relation queries the response was YES. [2021-03-26 17:38:24,645 INFO L84 FinitePrefix]: Finished finitePrefix Result has 985760 conditions, 113052 events. 56551/113052 cut-off events. For 3466229/3523450 co-relation queries the response was YES. Maximal size of possible extension queue 10338. Compared 1435379 event pairs, 9153 based on Foata normal form. 6129/113009 useless extension candidates. Maximal degree in co-relation 960186. Up to 44366 conditions per place. [2021-03-26 17:38:26,029 INFO L142 LiptonReduction]: Number of co-enabled transitions 19018 [2021-03-26 17:38:27,363 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 17:38:27,363 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 17:38:27,363 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 42358 [2021-03-26 17:38:27,364 INFO L480 AbstractCegarLoop]: Abstraction has has 141 places, 2896 transitions, 47027 flow [2021-03-26 17:38:27,364 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 23.11111111111111) internal successors, (208), 9 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:38:27,364 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-26 17:38:27,364 INFO L263 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-26 17:38:27,564 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-03-26 17:38:27,565 INFO L428 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-26 17:38:27,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-26 17:38:27,565 INFO L82 PathProgramCache]: Analyzing trace with hash 1715024623, now seen corresponding path program 6 times [2021-03-26 17:38:27,565 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-26 17:38:27,565 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892341846] [2021-03-26 17:38:27,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-26 17:38:27,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-26 17:38:27,591 INFO L142 QuantifierPusher]: treesize reduction 16, result has 44.8 percent of original size [2021-03-26 17:38:27,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 17:38:27,599 INFO L142 QuantifierPusher]: treesize reduction 8, result has 55.6 percent of original size [2021-03-26 17:38:27,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-26 17:38:27,607 INFO L142 QuantifierPusher]: treesize reduction 8, result has 60.0 percent of original size [2021-03-26 17:38:27,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 17:38:27,615 INFO L142 QuantifierPusher]: treesize reduction 4, result has 69.2 percent of original size [2021-03-26 17:38:27,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 17:38:27,621 INFO L142 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-03-26 17:38:27,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:38:27,629 INFO L142 QuantifierPusher]: treesize reduction 12, result has 7.7 percent of original size [2021-03-26 17:38:27,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:38:27,629 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:38:27,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:38:27,630 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-26 17:38:27,630 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1892341846] [2021-03-26 17:38:27,630 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [977047596] [2021-03-26 17:38:27,630 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-26 17:38:27,661 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2021-03-26 17:38:27,661 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-26 17:38:27,662 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 6 conjunts are in the unsatisfiable core [2021-03-26 17:38:27,663 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-26 17:38:27,663 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:38:27,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:38:27,664 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:38:27,664 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:38:27,665 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:38:27,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:38:27,665 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:38:27,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:38:27,674 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:38:27,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:38:27,675 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:38:27,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:38:27,676 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:38:27,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:38:27,677 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:38:27,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:38:27,677 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:38:27,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:38:27,679 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:38:27,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:38:27,680 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:38:27,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:38:27,680 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:38:27,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:38:27,681 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:38:27,682 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 17:38:27,682 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:38:27,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 17:38:27,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 17:38:27,683 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:38:27,684 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 17:38:27,684 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:38:27,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 17:38:27,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-26 17:38:27,685 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:38:27,686 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 17:38:27,687 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:38:27,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 17:38:27,697 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:38:27,698 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 17:38:27,698 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:38:27,698 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 17:38:27,699 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:38:27,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 17:38:27,699 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:38:27,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 17:38:27,700 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:38:27,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 17:38:27,701 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:38:27,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 17:38:27,701 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:38:27,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 17:38:27,702 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:38:27,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 17:38:27,703 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:38:27,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 17:38:27,703 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:38:27,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 17:38:27,704 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:38:27,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 17:38:27,705 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:38:27,705 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-26 17:38:27,706 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:38:27,706 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 17:38:27,706 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:38:27,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 17:38:27,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 17:38:27,707 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:38:27,708 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 17:38:27,708 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:38:27,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-03-26 17:38:27,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-26 17:38:27,709 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:38:27,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:38:27,712 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:38:27,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:38:27,715 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:38:27,715 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 17:38:27,715 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:38:27,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:38:27,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 17:38:27,717 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:38:27,717 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 17:38:27,717 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:38:27,718 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-03-26 17:38:27,718 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:38:27,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-26 17:38:27,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-03-26 17:38:27,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-26 17:38:27,720 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:38:27,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:38:27,722 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:38:27,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:38:27,730 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:38:27,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:38:27,731 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:38:27,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:38:27,732 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:38:27,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:38:27,732 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:38:27,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-26 17:38:27,735 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:38:27,735 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:38:27,736 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:38:27,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:38:27,736 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:38:27,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:38:27,737 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:38:27,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:38:27,737 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:38:27,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:38:27,738 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:38:27,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:38:27,738 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:38:27,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:38:27,739 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:38:27,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:38:27,739 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:38:27,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:38:27,740 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:38:27,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:38:27,740 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:38:27,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:38:27,741 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:38:27,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:38:27,742 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:38:27,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:38:27,742 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:38:27,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:38:27,743 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:38:27,743 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:38:27,743 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:38:27,743 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:38:27,744 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:38:27,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:38:27,744 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:38:27,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:38:27,745 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:38:27,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:38:27,746 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:38:27,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:38:27,746 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:38:27,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:38:27,747 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:38:27,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:38:27,748 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:38:27,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:38:27,748 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:38:27,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:38:27,749 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-26 17:38:27,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-26 17:38:27,749 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-03-26 17:38:27,750 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-26 17:38:27,750 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4] total 9 [2021-03-26 17:38:27,750 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207832298] [2021-03-26 17:38:27,750 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-26 17:38:27,750 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-26 17:38:27,751 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-26 17:38:27,751 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2021-03-26 17:38:27,751 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 46 [2021-03-26 17:38:27,752 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 2896 transitions, 47027 flow. Second operand has 10 states, 10 states have (on average 27.6) internal successors, (276), 10 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:38:27,752 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-26 17:38:27,752 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 46 [2021-03-26 17:38:27,752 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-26 17:40:09,232 INFO L129 PetriNetUnfolder]: 99193/181649 cut-off events. [2021-03-26 17:40:09,232 INFO L130 PetriNetUnfolder]: For 6007405/6039397 co-relation queries the response was YES. [2021-03-26 17:40:11,803 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1782797 conditions, 181649 events. 99193/181649 cut-off events. For 6007405/6039397 co-relation queries the response was YES. Maximal size of possible extension queue 13749. Compared 2164774 event pairs, 14264 based on Foata normal form. 5615/181748 useless extension candidates. Maximal degree in co-relation 1752146. Up to 61692 conditions per place. [2021-03-26 17:40:12,890 INFO L132 encePairwiseOnDemand]: 39/46 looper letters, 3242 selfloop transitions, 4735 changer transitions 260/8782 dead transitions. [2021-03-26 17:40:12,891 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 167 places, 8782 transitions, 163128 flow [2021-03-26 17:40:12,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-03-26 17:40:12,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2021-03-26 17:40:12,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 840 transitions. [2021-03-26 17:40:12,893 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6763285024154589 [2021-03-26 17:40:12,893 INFO L72 ComplementDD]: Start complementDD. Operand 27 states and 840 transitions. [2021-03-26 17:40:12,893 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 840 transitions. [2021-03-26 17:40:12,894 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-26 17:40:12,894 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 27 states and 840 transitions. [2021-03-26 17:40:12,895 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 28 states, 27 states have (on average 31.11111111111111) internal successors, (840), 27 states have internal predecessors, (840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-26 17:40:12,897 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 28 states, 28 states have (on average 46.0) internal successors, (1288), 28 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) [2021-03-26 17:40:12,897 INFO L81 ComplementDD]: Finished complementDD. Result has 28 states, 28 states have (on average 46.0) internal successors, (1288), 28 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) [2021-03-26 17:40:12,897 INFO L185 Difference]: Start difference. First operand has 141 places, 2896 transitions, 47027 flow. Second operand 27 states and 840 transitions. [2021-03-26 17:40:12,897 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 167 places, 8782 transitions, 163128 flow [2021-03-26 17:43:02,201 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 166 places, 8782 transitions, 160109 flow, removed 1508 selfloop flow, removed 1 redundant places. [2021-03-26 17:43:02,347 INFO L241 Difference]: Finished difference. Result has 187 places, 7318 transitions, 142046 flow [2021-03-26 17:43:02,350 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=46, PETRI_DIFFERENCE_MINUEND_FLOW=45540, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2896, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1386, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=917, PETRI_DIFFERENCE_SUBTRAHEND_STATES=27, PETRI_FLOW=142046, PETRI_PLACES=187, PETRI_TRANSITIONS=7318} [2021-03-26 17:43:02,350 INFO L343 CegarLoopForPetriNet]: 27 programPoint places, 160 predicate places. [2021-03-26 17:43:02,350 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 17:43:02,350 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 187 places, 7318 transitions, 142046 flow [2021-03-26 17:43:02,350 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 187 places, 7318 transitions, 142046 flow [2021-03-26 17:43:02,436 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 187 places, 7318 transitions, 142046 flow [2021-03-26 17:44:08,499 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([123] L57-1-->thread4EXIT: Formula: (not (< v_j2_20 v_M2_6)) InVars {j2=v_j2_20, M2=v_M2_6} OutVars{j2=v_j2_20, M2=v_M2_6} AuxVars[] AssignedVars[][4701], [Black: 492#(and (= M2 N2) (= M2 N1) (<= (+ i2 1) M2) (<= (+ i2 1) i1)), Black: 478#(and (= M2 N2) (<= (+ i2 1) M2) (<= N1 M2) (< (+ j2 1) M2) (<= (+ j2 1) i1)), 519#(<= M1 j1), Black: 135#(and (<= (+ j1 1) N1) (= M1 N1)), 11#thread2EXITtrue, Black: 320#(and (<= j1 i1) (= M1 N1)), 12#thread1EXITtrue, Black: 384#(and (<= N1 N2) (<= (+ j1 1) N1) (<= (+ j1 1) i1) (<= i2 i1) (= M1 N1)), 14#L74true, Black: 386#(and (<= N1 N2) (< i2 N2) (<= j1 i1) (<= (+ i2 1) i1) (= M1 N1)), Black: 325#(and (<= N1 N2) (<= i2 i1)), Black: 390#(and (<= N1 N2) (<= i2 i1) (<= j1 i1) (= M1 N1)), Black: 392#(and (<= N1 N2) (< i2 N2) (<= (+ i2 1) i1)), Black: 394#(and (<= (+ j1 1) N1) (<= (+ j1 1) i1) (= M1 N1)), Black: 382#(and (<= N1 N2) (<= (+ j1 1) N1) (< i2 N2) (<= (+ j1 1) i1) (<= (+ i2 1) i1) (= M1 N1)), 404#true, 25#thread3EXITtrue, 31#thread4EXITtrue, Black: 800#(and (<= N1 j1) (= N2 N1) (<= i1 j1) (<= i2 (+ j1 1)) (= M1 N1)), Black: 770#(and (= N2 N1) (<= i1 (+ j1 1)) (<= i2 j1) (= M1 N1)), Black: 802#(and (<= N1 j1) (= N2 N1) (<= i1 (+ j1 1)) (<= i2 (+ j1 1)) (= M1 N1)), 684#(and (<= N1 j1) (<= j2 j1) (= M2 N1) (= M1 N1)), Black: 708#(and (= N2 N1) (<= i2 j1) (= M1 N1)), Black: 672#(and (<= N1 j1) (<= j2 j1) (= M2 N1) (< i2 N2) (<= M1 N2) (<= i2 j1) (= M1 N1)), Black: 772#(and (<= N1 (+ j1 1)) (= N2 N1) (<= i1 (+ j1 1)) (<= i2 j1) (= M1 N1)), Black: 674#(and (<= N1 j1) (= M2 N1) (<= M1 N2) (<= (+ j2 1) j1) (<= i2 j1) (= M1 N1)), Black: 804#(and (< i1 N1) (<= i1 j1) (<= M1 N1)), Black: 676#(and (<= j2 j1) (= M2 N1) (<= M1 N2) (<= i2 j1) (= M1 N1)), Black: 709#(and (= N2 N1) (<= i2 (+ j1 1)) (= M1 N1)), Black: 806#(and (<= N1 j1) (= N2 N1) (<= i2 (+ j1 1)) (= M1 N1)), Black: 678#(and (<= N1 j1) (<= j2 j1) (= M2 N1) (<= M1 N2) (<= i2 j1) (= M1 N1)), Black: 615#(and (<= M1 N2) (<= i2 (+ j1 1))), Black: 774#(and (= N2 N1) (<= i1 (+ j1 1)) (<= i2 (+ j1 1)) (= M1 N1)), Black: 808#(and (<= N1 (+ j1 1)) (= N2 N1) (<= i2 (+ j1 1)) (= M1 N1)), Black: 680#(and (<= N1 j1) (= M2 N1) (<= (+ j2 1) j1) (= M1 N1)), Black: 682#(and (<= N1 j1) (<= j2 j1) (= M2 N1) (<= M1 N2) (<= i2 (+ j1 1)) (= M1 N1)), Black: 50#(= counter 0), Black: 776#(and (= N2 N1) (< i1 N1) (<= i1 j1) (<= i2 j1) (= M1 N1)), Black: 778#(and (= N2 N1) (<= i1 j1) (<= i2 j1) (= M1 N1)), Black: 656#(and (<= j2 j1) (= M2 N1) (< i2 N2) (<= M1 N2) (<= i2 j1) (= M1 N1)), Black: 715#(and (<= i1 j1) (<= M1 N1)), Black: 780#(and (<= N1 (+ j1 1)) (= N2 N1) (<= i1 (+ j1 1)) (<= i2 (+ j1 1)) (= M1 N1)), Black: 593#(and (<= j2 j1) (= M2 N1) (= M1 N1)), Black: 594#(and (= M2 N1) (<= (+ j2 1) j1) (= M1 N1)), Black: 782#(and (= N2 N1) (< i1 N1) (<= i1 j1) (<= i2 (+ j1 1)) (= M1 N1)), 56#(<= N1 i1), Black: 658#(and (<= j2 j1) (= M2 N1) (<= M1 N2) (<= i2 (+ j1 1)) (= M1 N1)), Black: 784#(and (<= N1 j1) (= N2 N1) (< i1 N1) (<= i2 j1) (= M1 N1)), Black: 660#(and (= M2 N1) (< i2 N2) (<= M1 N2) (<= (+ j2 1) j1) (<= i2 j1) (= M1 N1)), Black: 786#(and (= N2 N1) (<= i1 j1) (<= i2 (+ j1 1)) (= M1 N1)), Black: 788#(and (<= N1 j1) (= N2 N1) (<= i1 j1) (<= i2 j1) (= M1 N1)), Black: 662#(and (= M2 N1) (<= M1 N2) (<= (+ j2 1) j1) (<= i2 j1) (= M1 N1)), Black: 257#(and (<= counter 0) (<= 0 counter)), Black: 725#(and (<= i1 (+ j1 1)) (<= M1 N1)), Black: 599#(and (<= M1 N2) (<= i2 j1)), 316#true, Black: 55#(and (= i2 i1) (= N2 N1)), Black: 664#(and (= M2 N1) (<= M1 N2) (<= i2 (+ j1 1)) (<= (+ j2 1) j1) (= M1 N1)), Black: 792#(and (<= N1 j1) (= N2 N1) (< i1 N1) (<= i2 (+ j1 1)) (= M1 N1)), Black: 796#(and (<= N1 j1) (= N2 N1) (<= i2 j1) (= M1 N1)), Black: 666#(and (<= N1 j1) (= M2 N1) (< i2 N2) (<= M1 N2) (<= (+ j2 1) j1) (<= i2 j1) (= M1 N1)), Black: 668#(and (< i2 N2) (<= M1 N2) (<= i2 j1)), Black: 670#(and (<= N1 j1) (= M2 N1) (<= M1 N2) (<= i2 (+ j1 1)) (<= (+ j2 1) j1) (= M1 N1)), Black: 190#(and (< i1 N1) (<= i1 j1) (<= M1 N1)), 705#true, Black: 64#(and (= M2 M1) (= j1 0) (= j2 0)), Black: 577#(and (<= M1 (+ j1 1)) (<= i1 (+ j1 1)) (= M1 N1)), Black: 579#(and (<= M1 j1) (<= i1 j1) (= M1 N1)), Black: 517#(and (<= i1 (+ j1 1)) (= M1 N1)), Black: 581#(and (<= i1 j1) (= M1 N1)), Black: 583#(and (<= M1 j1) (<= i1 (+ j1 1)) (= M1 N1)), Black: 480#(and (<= N1 M2) (< (+ j2 1) M2) (<= (+ j2 1) i1)), Black: 498#(and (= M2 N2) (< j2 M2) (<= (+ i2 1) M2) (<= N1 M2) (<= (+ j2 1) i1)), Black: 482#(and (<= j2 i1) (< j2 M2) (<= N1 M2)), Black: 500#(and (= M2 N2) (<= j2 i1) (<= (+ i2 1) M2) (<= N1 M2)), Black: 120#(and (<= j2 j1) (= M2 M1) (<= (+ j2 1) M1)), Black: 486#(and (= M2 N2) (<= j2 i1) (< j2 M2) (= M2 N1) (<= (+ i2 2) N1) (<= (+ i2 1) i1)), Black: 488#(and (= M2 N2) (<= j2 i1) (< j2 M2) (<= (+ i2 1) M2) (<= N1 M2)), Black: 490#(and (= M2 N2) (< j2 M2) (= M2 N1) (<= (+ i2 2) N1) (<= (+ j2 1) i1) (<= (+ i2 1) i1)), Black: 474#(and (= M2 N2) (= M2 N1) (< (+ j2 1) M2) (<= (+ i2 2) N1) (<= (+ j2 1) i1) (<= (+ i2 1) i1)), Black: 251#(and (<= N1 N2) (= M2 N2) (<= i2 j2) (<= (+ i2 1) M2) (<= i2 i1)), Black: 410#(and (= M2 N2) (<= (+ i2 1) M2)), Black: 476#(and (< j2 M2) (<= N1 M2) (<= (+ j2 1) i1)), 255#true, 127#(<= N1 i1)]) [2021-03-26 17:44:08,499 INFO L384 tUnfolder$Statistics]: this new event has 17 ancestors and is cut-off event [2021-03-26 17:44:08,499 INFO L387 tUnfolder$Statistics]: existing Event has 17 ancestors and is cut-off event [2021-03-26 17:44:08,499 INFO L387 tUnfolder$Statistics]: existing Event has 16 ancestors and is cut-off event [2021-03-26 17:44:08,499 INFO L387 tUnfolder$Statistics]: existing Event has 16 ancestors and is cut-off event [2021-03-26 17:44:27,393 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([123] L57-1-->thread4EXIT: Formula: (not (< v_j2_20 v_M2_6)) InVars {j2=v_j2_20, M2=v_M2_6} OutVars{j2=v_j2_20, M2=v_M2_6} AuxVars[] AssignedVars[][4701], [Black: 492#(and (= M2 N2) (= M2 N1) (<= (+ i2 1) M2) (<= (+ i2 1) i1)), Black: 478#(and (= M2 N2) (<= (+ i2 1) M2) (<= N1 M2) (< (+ j2 1) M2) (<= (+ j2 1) i1)), 519#(<= M1 j1), Black: 135#(and (<= (+ j1 1) N1) (= M1 N1)), 11#thread2EXITtrue, 12#thread1EXITtrue, Black: 384#(and (<= N1 N2) (<= (+ j1 1) N1) (<= (+ j1 1) i1) (<= i2 i1) (= M1 N1)), 14#L74true, Black: 386#(and (<= N1 N2) (< i2 N2) (<= j1 i1) (<= (+ i2 1) i1) (= M1 N1)), Black: 325#(and (<= N1 N2) (<= i2 i1)), Black: 390#(and (<= N1 N2) (<= i2 i1) (<= j1 i1) (= M1 N1)), Black: 392#(and (<= N1 N2) (< i2 N2) (<= (+ i2 1) i1)), Black: 394#(and (<= (+ j1 1) N1) (<= (+ j1 1) i1) (= M1 N1)), Black: 382#(and (<= N1 N2) (<= (+ j1 1) N1) (< i2 N2) (<= (+ j1 1) i1) (<= (+ i2 1) i1) (= M1 N1)), 25#thread3EXITtrue, 414#(and (<= j2 i1) (<= N1 M2)), 31#thread4EXITtrue, Black: 800#(and (<= N1 j1) (= N2 N1) (<= i1 j1) (<= i2 (+ j1 1)) (= M1 N1)), Black: 770#(and (= N2 N1) (<= i1 (+ j1 1)) (<= i2 j1) (= M1 N1)), Black: 802#(and (<= N1 j1) (= N2 N1) (<= i1 (+ j1 1)) (<= i2 (+ j1 1)) (= M1 N1)), 684#(and (<= N1 j1) (<= j2 j1) (= M2 N1) (= M1 N1)), Black: 708#(and (= N2 N1) (<= i2 j1) (= M1 N1)), Black: 672#(and (<= N1 j1) (<= j2 j1) (= M2 N1) (< i2 N2) (<= M1 N2) (<= i2 j1) (= M1 N1)), Black: 772#(and (<= N1 (+ j1 1)) (= N2 N1) (<= i1 (+ j1 1)) (<= i2 j1) (= M1 N1)), Black: 804#(and (< i1 N1) (<= i1 j1) (<= M1 N1)), Black: 674#(and (<= N1 j1) (= M2 N1) (<= M1 N2) (<= (+ j2 1) j1) (<= i2 j1) (= M1 N1)), Black: 676#(and (<= j2 j1) (= M2 N1) (<= M1 N2) (<= i2 j1) (= M1 N1)), Black: 709#(and (= N2 N1) (<= i2 (+ j1 1)) (= M1 N1)), Black: 806#(and (<= N1 j1) (= N2 N1) (<= i2 (+ j1 1)) (= M1 N1)), Black: 678#(and (<= N1 j1) (<= j2 j1) (= M2 N1) (<= M1 N2) (<= i2 j1) (= M1 N1)), Black: 615#(and (<= M1 N2) (<= i2 (+ j1 1))), Black: 774#(and (= N2 N1) (<= i1 (+ j1 1)) (<= i2 (+ j1 1)) (= M1 N1)), Black: 808#(and (<= N1 (+ j1 1)) (= N2 N1) (<= i2 (+ j1 1)) (= M1 N1)), Black: 680#(and (<= N1 j1) (= M2 N1) (<= (+ j2 1) j1) (= M1 N1)), Black: 682#(and (<= N1 j1) (<= j2 j1) (= M2 N1) (<= M1 N2) (<= i2 (+ j1 1)) (= M1 N1)), Black: 50#(= counter 0), Black: 776#(and (= N2 N1) (< i1 N1) (<= i1 j1) (<= i2 j1) (= M1 N1)), Black: 778#(and (= N2 N1) (<= i1 j1) (<= i2 j1) (= M1 N1)), Black: 715#(and (<= i1 j1) (<= M1 N1)), Black: 656#(and (<= j2 j1) (= M2 N1) (< i2 N2) (<= M1 N2) (<= i2 j1) (= M1 N1)), Black: 780#(and (<= N1 (+ j1 1)) (= N2 N1) (<= i1 (+ j1 1)) (<= i2 (+ j1 1)) (= M1 N1)), Black: 593#(and (<= j2 j1) (= M2 N1) (= M1 N1)), 56#(<= N1 i1), Black: 594#(and (= M2 N1) (<= (+ j2 1) j1) (= M1 N1)), Black: 782#(and (= N2 N1) (< i1 N1) (<= i1 j1) (<= i2 (+ j1 1)) (= M1 N1)), Black: 784#(and (<= N1 j1) (= N2 N1) (< i1 N1) (<= i2 j1) (= M1 N1)), Black: 658#(and (<= j2 j1) (= M2 N1) (<= M1 N2) (<= i2 (+ j1 1)) (= M1 N1)), Black: 660#(and (= M2 N1) (< i2 N2) (<= M1 N2) (<= (+ j2 1) j1) (<= i2 j1) (= M1 N1)), Black: 786#(and (= N2 N1) (<= i1 j1) (<= i2 (+ j1 1)) (= M1 N1)), Black: 788#(and (<= N1 j1) (= N2 N1) (<= i1 j1) (<= i2 j1) (= M1 N1)), Black: 662#(and (= M2 N1) (<= M1 N2) (<= (+ j2 1) j1) (<= i2 j1) (= M1 N1)), Black: 257#(and (<= counter 0) (<= 0 counter)), Black: 725#(and (<= i1 (+ j1 1)) (<= M1 N1)), Black: 599#(and (<= M1 N2) (<= i2 j1)), Black: 55#(and (= i2 i1) (= N2 N1)), Black: 792#(and (<= N1 j1) (= N2 N1) (< i1 N1) (<= i2 (+ j1 1)) (= M1 N1)), Black: 664#(and (= M2 N1) (<= M1 N2) (<= i2 (+ j1 1)) (<= (+ j2 1) j1) (= M1 N1)), Black: 796#(and (<= N1 j1) (= N2 N1) (<= i2 j1) (= M1 N1)), Black: 666#(and (<= N1 j1) (= M2 N1) (< i2 N2) (<= M1 N2) (<= (+ j2 1) j1) (<= i2 j1) (= M1 N1)), Black: 668#(and (< i2 N2) (<= M1 N2) (<= i2 j1)), Black: 670#(and (<= N1 j1) (= M2 N1) (<= M1 N2) (<= i2 (+ j1 1)) (<= (+ j2 1) j1) (= M1 N1)), Black: 190#(and (< i1 N1) (<= i1 j1) (<= M1 N1)), 320#(and (<= j1 i1) (= M1 N1)), 705#true, Black: 64#(and (= M2 M1) (= j1 0) (= j2 0)), Black: 577#(and (<= M1 (+ j1 1)) (<= i1 (+ j1 1)) (= M1 N1)), Black: 579#(and (<= M1 j1) (<= i1 j1) (= M1 N1)), Black: 517#(and (<= i1 (+ j1 1)) (= M1 N1)), Black: 581#(and (<= i1 j1) (= M1 N1)), Black: 583#(and (<= M1 j1) (<= i1 (+ j1 1)) (= M1 N1)), Black: 480#(and (<= N1 M2) (< (+ j2 1) M2) (<= (+ j2 1) i1)), Black: 498#(and (= M2 N2) (< j2 M2) (<= (+ i2 1) M2) (<= N1 M2) (<= (+ j2 1) i1)), Black: 482#(and (<= j2 i1) (< j2 M2) (<= N1 M2)), Black: 500#(and (= M2 N2) (<= j2 i1) (<= (+ i2 1) M2) (<= N1 M2)), Black: 486#(and (= M2 N2) (<= j2 i1) (< j2 M2) (= M2 N1) (<= (+ i2 2) N1) (<= (+ i2 1) i1)), Black: 120#(and (<= j2 j1) (= M2 M1) (<= (+ j2 1) M1)), Black: 488#(and (= M2 N2) (<= j2 i1) (< j2 M2) (<= (+ i2 1) M2) (<= N1 M2)), Black: 490#(and (= M2 N2) (< j2 M2) (= M2 N1) (<= (+ i2 2) N1) (<= (+ j2 1) i1) (<= (+ i2 1) i1)), Black: 474#(and (= M2 N2) (= M2 N1) (< (+ j2 1) M2) (<= (+ i2 2) N1) (<= (+ j2 1) i1) (<= (+ i2 1) i1)), Black: 251#(and (<= N1 N2) (= M2 N2) (<= i2 j2) (<= (+ i2 1) M2) (<= i2 i1)), Black: 410#(and (= M2 N2) (<= (+ i2 1) M2)), 127#(<= N1 i1), Black: 476#(and (< j2 M2) (<= N1 M2) (<= (+ j2 1) i1)), 255#true]) [2021-03-26 17:44:27,393 INFO L384 tUnfolder$Statistics]: this new event has 18 ancestors and is cut-off event [2021-03-26 17:44:27,393 INFO L387 tUnfolder$Statistics]: existing Event has 18 ancestors and is cut-off event [2021-03-26 17:44:27,393 INFO L387 tUnfolder$Statistics]: existing Event has 18 ancestors and is cut-off event [2021-03-26 17:44:27,394 INFO L387 tUnfolder$Statistics]: existing Event has 16 ancestors and is cut-off event [2021-03-26 17:44:42,365 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([123] L57-1-->thread4EXIT: Formula: (not (< v_j2_20 v_M2_6)) InVars {j2=v_j2_20, M2=v_M2_6} OutVars{j2=v_j2_20, M2=v_M2_6} AuxVars[] AssignedVars[][4701], [Black: 492#(and (= M2 N2) (= M2 N1) (<= (+ i2 1) M2) (<= (+ i2 1) i1)), Black: 478#(and (= M2 N2) (<= (+ i2 1) M2) (<= N1 M2) (< (+ j2 1) M2) (<= (+ j2 1) i1)), 519#(<= M1 j1), Black: 135#(and (<= (+ j1 1) N1) (= M1 N1)), 11#thread2EXITtrue, 12#thread1EXITtrue, Black: 384#(and (<= N1 N2) (<= (+ j1 1) N1) (<= (+ j1 1) i1) (<= i2 i1) (= M1 N1)), 14#L74true, Black: 386#(and (<= N1 N2) (< i2 N2) (<= j1 i1) (<= (+ i2 1) i1) (= M1 N1)), Black: 325#(and (<= N1 N2) (<= i2 i1)), Black: 390#(and (<= N1 N2) (<= i2 i1) (<= j1 i1) (= M1 N1)), Black: 392#(and (<= N1 N2) (< i2 N2) (<= (+ i2 1) i1)), Black: 394#(and (<= (+ j1 1) N1) (<= (+ j1 1) i1) (= M1 N1)), Black: 382#(and (<= N1 N2) (<= (+ j1 1) N1) (< i2 N2) (<= (+ j1 1) i1) (<= (+ i2 1) i1) (= M1 N1)), 404#true, 25#thread3EXITtrue, 31#thread4EXITtrue, Black: 800#(and (<= N1 j1) (= N2 N1) (<= i1 j1) (<= i2 (+ j1 1)) (= M1 N1)), Black: 770#(and (= N2 N1) (<= i1 (+ j1 1)) (<= i2 j1) (= M1 N1)), Black: 802#(and (<= N1 j1) (= N2 N1) (<= i1 (+ j1 1)) (<= i2 (+ j1 1)) (= M1 N1)), 684#(and (<= N1 j1) (<= j2 j1) (= M2 N1) (= M1 N1)), Black: 708#(and (= N2 N1) (<= i2 j1) (= M1 N1)), Black: 672#(and (<= N1 j1) (<= j2 j1) (= M2 N1) (< i2 N2) (<= M1 N2) (<= i2 j1) (= M1 N1)), Black: 772#(and (<= N1 (+ j1 1)) (= N2 N1) (<= i1 (+ j1 1)) (<= i2 j1) (= M1 N1)), Black: 804#(and (< i1 N1) (<= i1 j1) (<= M1 N1)), Black: 674#(and (<= N1 j1) (= M2 N1) (<= M1 N2) (<= (+ j2 1) j1) (<= i2 j1) (= M1 N1)), Black: 676#(and (<= j2 j1) (= M2 N1) (<= M1 N2) (<= i2 j1) (= M1 N1)), Black: 709#(and (= N2 N1) (<= i2 (+ j1 1)) (= M1 N1)), Black: 806#(and (<= N1 j1) (= N2 N1) (<= i2 (+ j1 1)) (= M1 N1)), Black: 678#(and (<= N1 j1) (<= j2 j1) (= M2 N1) (<= M1 N2) (<= i2 j1) (= M1 N1)), Black: 615#(and (<= M1 N2) (<= i2 (+ j1 1))), Black: 774#(and (= N2 N1) (<= i1 (+ j1 1)) (<= i2 (+ j1 1)) (= M1 N1)), Black: 808#(and (<= N1 (+ j1 1)) (= N2 N1) (<= i2 (+ j1 1)) (= M1 N1)), Black: 680#(and (<= N1 j1) (= M2 N1) (<= (+ j2 1) j1) (= M1 N1)), Black: 682#(and (<= N1 j1) (<= j2 j1) (= M2 N1) (<= M1 N2) (<= i2 (+ j1 1)) (= M1 N1)), Black: 50#(= counter 0), Black: 776#(and (= N2 N1) (< i1 N1) (<= i1 j1) (<= i2 j1) (= M1 N1)), Black: 778#(and (= N2 N1) (<= i1 j1) (<= i2 j1) (= M1 N1)), Black: 715#(and (<= i1 j1) (<= M1 N1)), Black: 656#(and (<= j2 j1) (= M2 N1) (< i2 N2) (<= M1 N2) (<= i2 j1) (= M1 N1)), Black: 780#(and (<= N1 (+ j1 1)) (= N2 N1) (<= i1 (+ j1 1)) (<= i2 (+ j1 1)) (= M1 N1)), Black: 593#(and (<= j2 j1) (= M2 N1) (= M1 N1)), 56#(<= N1 i1), Black: 594#(and (= M2 N1) (<= (+ j2 1) j1) (= M1 N1)), Black: 782#(and (= N2 N1) (< i1 N1) (<= i1 j1) (<= i2 (+ j1 1)) (= M1 N1)), Black: 784#(and (<= N1 j1) (= N2 N1) (< i1 N1) (<= i2 j1) (= M1 N1)), Black: 658#(and (<= j2 j1) (= M2 N1) (<= M1 N2) (<= i2 (+ j1 1)) (= M1 N1)), Black: 660#(and (= M2 N1) (< i2 N2) (<= M1 N2) (<= (+ j2 1) j1) (<= i2 j1) (= M1 N1)), Black: 786#(and (= N2 N1) (<= i1 j1) (<= i2 (+ j1 1)) (= M1 N1)), Black: 788#(and (<= N1 j1) (= N2 N1) (<= i1 j1) (<= i2 j1) (= M1 N1)), Black: 662#(and (= M2 N1) (<= M1 N2) (<= (+ j2 1) j1) (<= i2 j1) (= M1 N1)), Black: 257#(and (<= counter 0) (<= 0 counter)), Black: 725#(and (<= i1 (+ j1 1)) (<= M1 N1)), Black: 599#(and (<= M1 N2) (<= i2 j1)), Black: 55#(and (= i2 i1) (= N2 N1)), Black: 792#(and (<= N1 j1) (= N2 N1) (< i1 N1) (<= i2 (+ j1 1)) (= M1 N1)), Black: 664#(and (= M2 N1) (<= M1 N2) (<= i2 (+ j1 1)) (<= (+ j2 1) j1) (= M1 N1)), Black: 796#(and (<= N1 j1) (= N2 N1) (<= i2 j1) (= M1 N1)), Black: 666#(and (<= N1 j1) (= M2 N1) (< i2 N2) (<= M1 N2) (<= (+ j2 1) j1) (<= i2 j1) (= M1 N1)), Black: 668#(and (< i2 N2) (<= M1 N2) (<= i2 j1)), Black: 670#(and (<= N1 j1) (= M2 N1) (<= M1 N2) (<= i2 (+ j1 1)) (<= (+ j2 1) j1) (= M1 N1)), Black: 190#(and (< i1 N1) (<= i1 j1) (<= M1 N1)), 320#(and (<= j1 i1) (= M1 N1)), 705#true, Black: 64#(and (= M2 M1) (= j1 0) (= j2 0)), Black: 577#(and (<= M1 (+ j1 1)) (<= i1 (+ j1 1)) (= M1 N1)), Black: 579#(and (<= M1 j1) (<= i1 j1) (= M1 N1)), Black: 517#(and (<= i1 (+ j1 1)) (= M1 N1)), Black: 581#(and (<= i1 j1) (= M1 N1)), Black: 583#(and (<= M1 j1) (<= i1 (+ j1 1)) (= M1 N1)), Black: 480#(and (<= N1 M2) (< (+ j2 1) M2) (<= (+ j2 1) i1)), Black: 498#(and (= M2 N2) (< j2 M2) (<= (+ i2 1) M2) (<= N1 M2) (<= (+ j2 1) i1)), Black: 482#(and (<= j2 i1) (< j2 M2) (<= N1 M2)), Black: 500#(and (= M2 N2) (<= j2 i1) (<= (+ i2 1) M2) (<= N1 M2)), Black: 486#(and (= M2 N2) (<= j2 i1) (< j2 M2) (= M2 N1) (<= (+ i2 2) N1) (<= (+ i2 1) i1)), Black: 120#(and (<= j2 j1) (= M2 M1) (<= (+ j2 1) M1)), Black: 488#(and (= M2 N2) (<= j2 i1) (< j2 M2) (<= (+ i2 1) M2) (<= N1 M2)), Black: 490#(and (= M2 N2) (< j2 M2) (= M2 N1) (<= (+ i2 2) N1) (<= (+ j2 1) i1) (<= (+ i2 1) i1)), Black: 474#(and (= M2 N2) (= M2 N1) (< (+ j2 1) M2) (<= (+ i2 2) N1) (<= (+ j2 1) i1) (<= (+ i2 1) i1)), Black: 251#(and (<= N1 N2) (= M2 N2) (<= i2 j2) (<= (+ i2 1) M2) (<= i2 i1)), Black: 410#(and (= M2 N2) (<= (+ i2 1) M2)), 127#(<= N1 i1), 255#true, Black: 476#(and (< j2 M2) (<= N1 M2) (<= (+ j2 1) i1))]) [2021-03-26 17:44:42,365 INFO L384 tUnfolder$Statistics]: this new event has 19 ancestors and is cut-off event [2021-03-26 17:44:42,365 INFO L387 tUnfolder$Statistics]: existing Event has 16 ancestors and is cut-off event [2021-03-26 17:44:42,365 INFO L387 tUnfolder$Statistics]: existing Event has 16 ancestors and is cut-off event [2021-03-26 17:44:42,365 INFO L387 tUnfolder$Statistics]: existing Event has 17 ancestors and is cut-off event