/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithPredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/ticket-4.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-6f4246e9f5583d222ebb38ff8175c901f3a528f0-6f4246e [2021-04-29 05:52:04,670 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-29 05:52:04,673 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-29 05:52:04,730 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-04-29 05:52:04,730 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-04-29 05:52:04,734 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-04-29 05:52:04,737 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-04-29 05:52:04,745 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-04-29 05:52:04,749 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-04-29 05:52:04,754 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-04-29 05:52:04,755 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-04-29 05:52:04,757 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-04-29 05:52:04,757 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-04-29 05:52:04,759 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-04-29 05:52:04,761 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-04-29 05:52:04,763 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-04-29 05:52:04,764 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-04-29 05:52:04,765 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-04-29 05:52:04,767 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-04-29 05:52:04,769 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-04-29 05:52:04,770 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-04-29 05:52:04,776 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-04-29 05:52:04,778 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-04-29 05:52:04,782 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-04-29 05:52:04,790 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-04-29 05:52:04,807 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-04-29 05:52:04,809 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-04-29 05:52:04,810 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-04-29 05:52:04,811 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithPredicates.epf [2021-04-29 05:52:04,864 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-29 05:52:04,864 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-29 05:52:04,869 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-04-29 05:52:04,869 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-04-29 05:52:04,869 INFO L138 SettingsManager]: * Use SBE=true [2021-04-29 05:52:04,870 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-29 05:52:04,870 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-29 05:52:04,870 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-29 05:52:04,870 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-29 05:52:04,871 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-29 05:52:04,872 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-29 05:52:04,872 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-29 05:52:04,873 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-29 05:52:04,873 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-29 05:52:04,873 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-29 05:52:04,873 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-29 05:52:04,873 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-29 05:52:04,874 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-29 05:52:04,874 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-29 05:52:04,874 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-04-29 05:52:04,875 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-29 05:52:04,875 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-29 05:52:04,875 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-29 05:52:04,875 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-04-29 05:52:04,876 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-04-29 05:52:04,876 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-04-29 05:52:04,876 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-04-29 05:52:04,876 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-04-29 05:52:04,876 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-04-29 05:52:04,877 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-04-29 05:52:04,877 INFO L138 SettingsManager]: * Apply repeated Lipton Reduction=true WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-29 05:52:05,308 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-29 05:52:05,352 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-29 05:52:05,355 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-29 05:52:05,357 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-04-29 05:52:05,358 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-04-29 05:52:05,359 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/ticket-4.wvr.bpl [2021-04-29 05:52:05,360 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/ticket-4.wvr.bpl' [2021-04-29 05:52:05,406 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-29 05:52:05,442 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-04-29 05:52:05,444 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-04-29 05:52:05,444 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-04-29 05:52:05,444 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-04-29 05:52:05,461 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "ticket-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 05:52:05" (1/1) ... [2021-04-29 05:52:05,470 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "ticket-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 05:52:05" (1/1) ... [2021-04-29 05:52:05,478 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-04-29 05:52:05,479 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-29 05:52:05,480 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-29 05:52:05,480 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-29 05:52:05,488 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "ticket-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 05:52:05" (1/1) ... [2021-04-29 05:52:05,488 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "ticket-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 05:52:05" (1/1) ... [2021-04-29 05:52:05,489 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "ticket-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 05:52:05" (1/1) ... [2021-04-29 05:52:05,490 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "ticket-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 05:52:05" (1/1) ... [2021-04-29 05:52:05,493 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "ticket-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 05:52:05" (1/1) ... [2021-04-29 05:52:05,494 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "ticket-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 05:52:05" (1/1) ... [2021-04-29 05:52:05,495 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "ticket-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 05:52:05" (1/1) ... [2021-04-29 05:52:05,496 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-29 05:52:05,497 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-29 05:52:05,497 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-29 05:52:05,497 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-29 05:52:05,499 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "ticket-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 05:52:05" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-29 05:52:05,609 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-04-29 05:52:05,612 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-04-29 05:52:05,612 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-04-29 05:52:05,613 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-04-29 05:52:05,613 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-04-29 05:52:05,613 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-04-29 05:52:05,613 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-04-29 05:52:05,613 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-29 05:52:05,614 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-29 05:52:05,614 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-04-29 05:52:05,614 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-04-29 05:52:05,614 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-04-29 05:52:05,614 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2021-04-29 05:52:05,615 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2021-04-29 05:52:05,615 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2021-04-29 05:52:05,616 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-04-29 05:52:05,876 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-29 05:52:05,876 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-04-29 05:52:05,879 INFO L202 PluginConnector]: Adding new model ticket-4.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 05:52:05 BoogieIcfgContainer [2021-04-29 05:52:05,879 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-29 05:52:05,881 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-29 05:52:05,881 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-29 05:52:05,884 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-29 05:52:05,885 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ticket-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.04 05:52:05" (1/2) ... [2021-04-29 05:52:05,886 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@edd4b39 and model type ticket-4.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 05:52:05, skipping insertion in model container [2021-04-29 05:52:05,886 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ticket-4.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 05:52:05" (2/2) ... [2021-04-29 05:52:05,888 INFO L111 eAbstractionObserver]: Analyzing ICFG ticket-4.wvr.bpl [2021-04-29 05:52:05,895 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-04-29 05:52:05,900 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-04-29 05:52:05,901 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-04-29 05:52:05,962 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-04-29 05:52:05,997 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-04-29 05:52:06,025 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-29 05:52:06,025 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-29 05:52:06,025 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-29 05:52:06,025 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-29 05:52:06,026 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-29 05:52:06,026 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-29 05:52:06,026 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-29 05:52:06,026 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-29 05:52:06,040 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 51 places, 38 transitions, 108 flow [2021-04-29 05:52:06,118 INFO L129 PetriNetUnfolder]: 0/34 cut-off events. [2021-04-29 05:52:06,119 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-04-29 05:52:06,122 INFO L84 FinitePrefix]: Finished finitePrefix Result has 51 conditions, 34 events. 0/34 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 60 event pairs, 0 based on Foata normal form. 0/33 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-04-29 05:52:06,123 INFO L82 GeneralOperation]: Start removeDead. Operand has 51 places, 38 transitions, 108 flow [2021-04-29 05:52:06,131 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 45 places, 32 transitions, 88 flow [2021-04-29 05:52:06,133 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 05:52:06,163 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 45 places, 32 transitions, 88 flow [2021-04-29 05:52:06,170 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 45 places, 32 transitions, 88 flow [2021-04-29 05:52:06,175 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 45 places, 32 transitions, 88 flow [2021-04-29 05:52:06,205 INFO L129 PetriNetUnfolder]: 0/32 cut-off events. [2021-04-29 05:52:06,205 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-04-29 05:52:06,205 INFO L84 FinitePrefix]: Finished finitePrefix Result has 49 conditions, 32 events. 0/32 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 61 event pairs, 0 based on Foata normal form. 0/32 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-04-29 05:52:06,208 INFO L146 LiptonReduction]: Number of co-enabled transitions 456 [2021-04-29 05:52:08,125 INFO L158 LiptonReduction]: Checked pairs total: 2223 [2021-04-29 05:52:08,126 INFO L160 LiptonReduction]: Total number of compositions: 18 [2021-04-29 05:52:08,129 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1998 [2021-04-29 05:52:08,147 INFO L129 PetriNetUnfolder]: 0/31 cut-off events. [2021-04-29 05:52:08,147 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-04-29 05:52:08,147 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 05:52:08,148 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 05:52:08,148 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 05:52:08,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 05:52:08,154 INFO L82 PathProgramCache]: Analyzing trace with hash 1980764012, now seen corresponding path program 1 times [2021-04-29 05:52:08,164 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 05:52:08,164 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863892838] [2021-04-29 05:52:08,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 05:52:08,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 05:52:08,412 INFO L142 QuantifierPusher]: treesize reduction 17, result has 43.3 percent of original size [2021-04-29 05:52:08,413 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-29 05:52:08,431 INFO L142 QuantifierPusher]: treesize reduction 4, result has 60.0 percent of original size [2021-04-29 05:52:08,433 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-04-29 05:52:08,442 INFO L142 QuantifierPusher]: treesize reduction 4, result has 60.0 percent of original size [2021-04-29 05:52:08,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-04-29 05:52:08,444 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:08,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-04-29 05:52:08,450 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:08,451 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 05:52:08,461 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:08,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-04-29 05:52:08,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 05:52:08,468 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1863892838] [2021-04-29 05:52:08,469 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 05:52:08,470 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-29 05:52:08,472 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704927045] [2021-04-29 05:52:08,482 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-29 05:52:08,483 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 05:52:08,497 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-29 05:52:08,502 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-04-29 05:52:08,503 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 29 out of 56 [2021-04-29 05:52:08,507 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 33 transitions, 90 flow. Second operand has 6 states, 6 states have (on average 30.833333333333332) internal successors, (185), 6 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:08,508 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 05:52:08,508 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 29 of 56 [2021-04-29 05:52:08,509 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 05:52:09,115 INFO L129 PetriNetUnfolder]: 2567/3994 cut-off events. [2021-04-29 05:52:09,115 INFO L130 PetriNetUnfolder]: For 160/160 co-relation queries the response was YES. [2021-04-29 05:52:09,128 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7955 conditions, 3994 events. 2567/3994 cut-off events. For 160/160 co-relation queries the response was YES. Maximal size of possible extension queue 381. Compared 24068 event pairs, 1224 based on Foata normal form. 1/2096 useless extension candidates. Maximal degree in co-relation 7927. Up to 2000 conditions per place. [2021-04-29 05:52:09,137 INFO L132 encePairwiseOnDemand]: 36/56 looper letters, 18 selfloop transitions, 9 changer transitions 24/64 dead transitions. [2021-04-29 05:52:09,137 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 64 transitions, 254 flow [2021-04-29 05:52:09,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-29 05:52:09,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-29 05:52:09,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 198 transitions. [2021-04-29 05:52:09,152 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7071428571428572 [2021-04-29 05:52:09,153 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 198 transitions. [2021-04-29 05:52:09,154 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 198 transitions. [2021-04-29 05:52:09,155 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 05:52:09,158 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 198 transitions. [2021-04-29 05:52:09,161 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 39.6) internal successors, (198), 5 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:09,167 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 56.0) internal successors, (336), 6 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:09,168 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 56.0) internal successors, (336), 6 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:09,170 INFO L185 Difference]: Start difference. First operand has 46 places, 33 transitions, 90 flow. Second operand 5 states and 198 transitions. [2021-04-29 05:52:09,171 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 64 transitions, 254 flow [2021-04-29 05:52:09,177 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 64 transitions, 238 flow, removed 0 selfloop flow, removed 8 redundant places. [2021-04-29 05:52:09,180 INFO L241 Difference]: Finished difference. Result has 45 places, 31 transitions, 120 flow [2021-04-29 05:52:09,182 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=120, PETRI_PLACES=45, PETRI_TRANSITIONS=31} [2021-04-29 05:52:09,183 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, -1 predicate places. [2021-04-29 05:52:09,183 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 05:52:09,184 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 45 places, 31 transitions, 120 flow [2021-04-29 05:52:09,184 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 45 places, 31 transitions, 120 flow [2021-04-29 05:52:09,185 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 36 places, 31 transitions, 120 flow [2021-04-29 05:52:09,206 INFO L129 PetriNetUnfolder]: 64/195 cut-off events. [2021-04-29 05:52:09,206 INFO L130 PetriNetUnfolder]: For 17/19 co-relation queries the response was YES. [2021-04-29 05:52:09,207 INFO L84 FinitePrefix]: Finished finitePrefix Result has 389 conditions, 195 events. 64/195 cut-off events. For 17/19 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 1013 event pairs, 34 based on Foata normal form. 0/174 useless extension candidates. Maximal degree in co-relation 348. Up to 100 conditions per place. [2021-04-29 05:52:09,210 INFO L146 LiptonReduction]: Number of co-enabled transitions 242 [2021-04-29 05:52:09,214 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 05:52:09,215 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 05:52:09,215 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 32 [2021-04-29 05:52:09,217 INFO L480 AbstractCegarLoop]: Abstraction has has 36 places, 31 transitions, 120 flow [2021-04-29 05:52:09,218 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 30.833333333333332) internal successors, (185), 6 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:09,218 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 05:52:09,218 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 05:52:09,218 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-29 05:52:09,218 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 05:52:09,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 05:52:09,219 INFO L82 PathProgramCache]: Analyzing trace with hash -1086277146, now seen corresponding path program 2 times [2021-04-29 05:52:09,219 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 05:52:09,220 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253732607] [2021-04-29 05:52:09,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 05:52:09,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 05:52:09,289 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:09,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 05:52:09,293 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:09,294 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:09,299 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:09,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:09,305 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:09,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:09,313 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:09,315 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 05:52:09,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 05:52:09,316 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253732607] [2021-04-29 05:52:09,316 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 05:52:09,316 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-04-29 05:52:09,316 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705954117] [2021-04-29 05:52:09,318 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-29 05:52:09,318 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 05:52:09,319 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-29 05:52:09,319 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-04-29 05:52:09,320 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 56 [2021-04-29 05:52:09,320 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 31 transitions, 120 flow. Second operand has 6 states, 6 states have (on average 26.666666666666668) internal successors, (160), 6 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:09,321 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 05:52:09,321 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 56 [2021-04-29 05:52:09,321 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 05:52:09,727 INFO L129 PetriNetUnfolder]: 1395/2321 cut-off events. [2021-04-29 05:52:09,728 INFO L130 PetriNetUnfolder]: For 1203/1248 co-relation queries the response was YES. [2021-04-29 05:52:09,733 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6246 conditions, 2321 events. 1395/2321 cut-off events. For 1203/1248 co-relation queries the response was YES. Maximal size of possible extension queue 236. Compared 14435 event pairs, 443 based on Foata normal form. 95/2260 useless extension candidates. Maximal degree in co-relation 6155. Up to 813 conditions per place. [2021-04-29 05:52:09,742 INFO L132 encePairwiseOnDemand]: 46/56 looper letters, 21 selfloop transitions, 29 changer transitions 18/77 dead transitions. [2021-04-29 05:52:09,742 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 77 transitions, 428 flow [2021-04-29 05:52:09,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-04-29 05:52:09,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-04-29 05:52:09,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 206 transitions. [2021-04-29 05:52:09,751 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6130952380952381 [2021-04-29 05:52:09,751 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 206 transitions. [2021-04-29 05:52:09,751 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 206 transitions. [2021-04-29 05:52:09,752 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 05:52:09,753 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 206 transitions. [2021-04-29 05:52:09,755 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 34.333333333333336) internal successors, (206), 6 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:09,759 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 56.0) internal successors, (392), 7 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:09,760 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 56.0) internal successors, (392), 7 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:09,760 INFO L185 Difference]: Start difference. First operand has 36 places, 31 transitions, 120 flow. Second operand 6 states and 206 transitions. [2021-04-29 05:52:09,760 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 77 transitions, 428 flow [2021-04-29 05:52:09,765 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 77 transitions, 398 flow, removed 1 selfloop flow, removed 3 redundant places. [2021-04-29 05:52:09,769 INFO L241 Difference]: Finished difference. Result has 39 places, 50 transitions, 297 flow [2021-04-29 05:52:09,769 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=297, PETRI_PLACES=39, PETRI_TRANSITIONS=50} [2021-04-29 05:52:09,770 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, -7 predicate places. [2021-04-29 05:52:09,770 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 05:52:09,770 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 39 places, 50 transitions, 297 flow [2021-04-29 05:52:09,771 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 39 places, 50 transitions, 297 flow [2021-04-29 05:52:09,772 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 34 places, 50 transitions, 297 flow [2021-04-29 05:52:09,844 INFO L129 PetriNetUnfolder]: 262/535 cut-off events. [2021-04-29 05:52:09,845 INFO L130 PetriNetUnfolder]: For 351/389 co-relation queries the response was YES. [2021-04-29 05:52:09,846 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1632 conditions, 535 events. 262/535 cut-off events. For 351/389 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 2984 event pairs, 53 based on Foata normal form. 16/548 useless extension candidates. Maximal degree in co-relation 1568. Up to 283 conditions per place. [2021-04-29 05:52:09,853 INFO L146 LiptonReduction]: Number of co-enabled transitions 176 [2021-04-29 05:52:09,865 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 05:52:09,866 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 05:52:09,866 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 96 [2021-04-29 05:52:09,869 INFO L480 AbstractCegarLoop]: Abstraction has has 34 places, 50 transitions, 297 flow [2021-04-29 05:52:09,869 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 26.666666666666668) internal successors, (160), 6 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:09,870 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 05:52:09,870 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 05:52:09,870 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-04-29 05:52:09,870 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 05:52:09,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 05:52:09,872 INFO L82 PathProgramCache]: Analyzing trace with hash 1451589332, now seen corresponding path program 3 times [2021-04-29 05:52:09,872 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 05:52:09,872 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72799102] [2021-04-29 05:52:09,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 05:52:09,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 05:52:09,944 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:09,945 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 05:52:09,949 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:09,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:09,954 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:09,955 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:09,962 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:09,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 05:52:09,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 05:52:09,964 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72799102] [2021-04-29 05:52:09,967 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 05:52:09,967 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-29 05:52:09,969 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947607822] [2021-04-29 05:52:09,969 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-29 05:52:09,970 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 05:52:09,970 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-29 05:52:09,971 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-04-29 05:52:09,971 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 56 [2021-04-29 05:52:09,971 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 50 transitions, 297 flow. Second operand has 5 states, 5 states have (on average 27.0) internal successors, (135), 5 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) [2021-04-29 05:52:09,972 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 05:52:09,972 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 56 [2021-04-29 05:52:09,972 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 05:52:10,145 INFO L129 PetriNetUnfolder]: 350/650 cut-off events. [2021-04-29 05:52:10,145 INFO L130 PetriNetUnfolder]: For 618/691 co-relation queries the response was YES. [2021-04-29 05:52:10,148 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2599 conditions, 650 events. 350/650 cut-off events. For 618/691 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 3395 event pairs, 61 based on Foata normal form. 23/670 useless extension candidates. Maximal degree in co-relation 2544. Up to 527 conditions per place. [2021-04-29 05:52:10,154 INFO L132 encePairwiseOnDemand]: 48/56 looper letters, 47 selfloop transitions, 26 changer transitions 0/82 dead transitions. [2021-04-29 05:52:10,154 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 82 transitions, 654 flow [2021-04-29 05:52:10,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-29 05:52:10,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-29 05:52:10,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 154 transitions. [2021-04-29 05:52:10,156 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.55 [2021-04-29 05:52:10,156 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 154 transitions. [2021-04-29 05:52:10,156 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 154 transitions. [2021-04-29 05:52:10,156 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 05:52:10,156 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 154 transitions. [2021-04-29 05:52:10,157 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 30.8) internal successors, (154), 5 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:10,159 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 56.0) internal successors, (336), 6 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:10,160 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 56.0) internal successors, (336), 6 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:10,160 INFO L185 Difference]: Start difference. First operand has 34 places, 50 transitions, 297 flow. Second operand 5 states and 154 transitions. [2021-04-29 05:52:10,160 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 82 transitions, 654 flow [2021-04-29 05:52:10,167 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 82 transitions, 633 flow, removed 8 selfloop flow, removed 1 redundant places. [2021-04-29 05:52:10,170 INFO L241 Difference]: Finished difference. Result has 39 places, 71 transitions, 545 flow [2021-04-29 05:52:10,170 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=284, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=545, PETRI_PLACES=39, PETRI_TRANSITIONS=71} [2021-04-29 05:52:10,170 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, -7 predicate places. [2021-04-29 05:52:10,171 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 05:52:10,171 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 39 places, 71 transitions, 545 flow [2021-04-29 05:52:10,172 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 39 places, 71 transitions, 545 flow [2021-04-29 05:52:10,173 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 39 places, 71 transitions, 545 flow [2021-04-29 05:52:10,245 INFO L129 PetriNetUnfolder]: 279/563 cut-off events. [2021-04-29 05:52:10,246 INFO L130 PetriNetUnfolder]: For 803/845 co-relation queries the response was YES. [2021-04-29 05:52:10,248 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1970 conditions, 563 events. 279/563 cut-off events. For 803/845 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 3112 event pairs, 45 based on Foata normal form. 23/582 useless extension candidates. Maximal degree in co-relation 1903. Up to 299 conditions per place. [2021-04-29 05:52:10,254 INFO L146 LiptonReduction]: Number of co-enabled transitions 200 [2021-04-29 05:52:10,274 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 05:52:10,274 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 05:52:10,275 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 104 [2021-04-29 05:52:10,277 INFO L480 AbstractCegarLoop]: Abstraction has has 39 places, 71 transitions, 545 flow [2021-04-29 05:52:10,278 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 27.0) internal successors, (135), 5 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) [2021-04-29 05:52:10,278 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 05:52:10,278 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 05:52:10,278 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-04-29 05:52:10,279 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 05:52:10,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 05:52:10,279 INFO L82 PathProgramCache]: Analyzing trace with hash -1981197762, now seen corresponding path program 4 times [2021-04-29 05:52:10,280 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 05:52:10,280 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222975221] [2021-04-29 05:52:10,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 05:52:10,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 05:52:10,346 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:10,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 05:52:10,354 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:10,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:10,364 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:10,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:10,371 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:10,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:10,383 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:10,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 05:52:10,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 05:52:10,384 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222975221] [2021-04-29 05:52:10,384 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 05:52:10,384 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-04-29 05:52:10,384 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446042741] [2021-04-29 05:52:10,385 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-29 05:52:10,385 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 05:52:10,386 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-29 05:52:10,386 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-04-29 05:52:10,387 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 56 [2021-04-29 05:52:10,387 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 71 transitions, 545 flow. Second operand has 6 states, 6 states have (on average 26.666666666666668) internal successors, (160), 6 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:10,387 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 05:52:10,387 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 56 [2021-04-29 05:52:10,388 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 05:52:10,596 INFO L129 PetriNetUnfolder]: 360/688 cut-off events. [2021-04-29 05:52:10,597 INFO L130 PetriNetUnfolder]: For 1116/1166 co-relation queries the response was YES. [2021-04-29 05:52:10,599 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3003 conditions, 688 events. 360/688 cut-off events. For 1116/1166 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 3733 event pairs, 44 based on Foata normal form. 36/721 useless extension candidates. Maximal degree in co-relation 2936. Up to 317 conditions per place. [2021-04-29 05:52:10,606 INFO L132 encePairwiseOnDemand]: 47/56 looper letters, 22 selfloop transitions, 62 changer transitions 0/93 dead transitions. [2021-04-29 05:52:10,606 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 93 transitions, 894 flow [2021-04-29 05:52:10,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-04-29 05:52:10,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-04-29 05:52:10,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 190 transitions. [2021-04-29 05:52:10,608 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5654761904761905 [2021-04-29 05:52:10,608 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 190 transitions. [2021-04-29 05:52:10,608 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 190 transitions. [2021-04-29 05:52:10,609 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 05:52:10,609 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 190 transitions. [2021-04-29 05:52:10,610 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 31.666666666666668) internal successors, (190), 6 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:10,612 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 56.0) internal successors, (392), 7 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:10,612 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 56.0) internal successors, (392), 7 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:10,612 INFO L185 Difference]: Start difference. First operand has 39 places, 71 transitions, 545 flow. Second operand 6 states and 190 transitions. [2021-04-29 05:52:10,613 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 93 transitions, 894 flow [2021-04-29 05:52:10,619 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 93 transitions, 889 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-29 05:52:10,623 INFO L241 Difference]: Finished difference. Result has 44 places, 85 transitions, 833 flow [2021-04-29 05:52:10,624 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=540, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=48, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=833, PETRI_PLACES=44, PETRI_TRANSITIONS=85} [2021-04-29 05:52:10,624 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, -2 predicate places. [2021-04-29 05:52:10,624 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 05:52:10,625 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 44 places, 85 transitions, 833 flow [2021-04-29 05:52:10,625 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 44 places, 85 transitions, 833 flow [2021-04-29 05:52:10,626 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 44 places, 85 transitions, 833 flow [2021-04-29 05:52:10,695 INFO L129 PetriNetUnfolder]: 294/586 cut-off events. [2021-04-29 05:52:10,695 INFO L130 PetriNetUnfolder]: For 1268/1349 co-relation queries the response was YES. [2021-04-29 05:52:10,697 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2553 conditions, 586 events. 294/586 cut-off events. For 1268/1349 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 3184 event pairs, 45 based on Foata normal form. 29/610 useless extension candidates. Maximal degree in co-relation 2485. Up to 311 conditions per place. [2021-04-29 05:52:10,704 INFO L146 LiptonReduction]: Number of co-enabled transitions 202 [2021-04-29 05:52:10,731 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 05:52:10,731 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 05:52:10,731 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 107 [2021-04-29 05:52:10,737 INFO L480 AbstractCegarLoop]: Abstraction has has 44 places, 85 transitions, 833 flow [2021-04-29 05:52:10,737 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 26.666666666666668) internal successors, (160), 6 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:10,737 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 05:52:10,737 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 05:52:10,738 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-04-29 05:52:10,738 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 05:52:10,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 05:52:10,739 INFO L82 PathProgramCache]: Analyzing trace with hash -1511444008, now seen corresponding path program 5 times [2021-04-29 05:52:10,739 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 05:52:10,739 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696215599] [2021-04-29 05:52:10,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 05:52:10,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 05:52:10,793 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:10,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 05:52:10,798 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:10,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:10,804 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:10,806 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:10,812 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:10,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 05:52:10,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 05:52:10,815 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696215599] [2021-04-29 05:52:10,815 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 05:52:10,815 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-29 05:52:10,816 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863334935] [2021-04-29 05:52:10,817 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-29 05:52:10,818 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 05:52:10,819 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-29 05:52:10,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-04-29 05:52:10,827 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 56 [2021-04-29 05:52:10,828 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 85 transitions, 833 flow. Second operand has 5 states, 5 states have (on average 27.0) internal successors, (135), 5 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) [2021-04-29 05:52:10,828 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 05:52:10,828 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 56 [2021-04-29 05:52:10,828 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 05:52:11,010 INFO L129 PetriNetUnfolder]: 365/702 cut-off events. [2021-04-29 05:52:11,010 INFO L130 PetriNetUnfolder]: For 1882/2043 co-relation queries the response was YES. [2021-04-29 05:52:11,013 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3620 conditions, 702 events. 365/702 cut-off events. For 1882/2043 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 3889 event pairs, 71 based on Foata normal form. 41/738 useless extension candidates. Maximal degree in co-relation 3556. Up to 543 conditions per place. [2021-04-29 05:52:11,020 INFO L132 encePairwiseOnDemand]: 48/56 looper letters, 53 selfloop transitions, 42 changer transitions 0/104 dead transitions. [2021-04-29 05:52:11,021 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 104 transitions, 1203 flow [2021-04-29 05:52:11,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-29 05:52:11,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-29 05:52:11,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 154 transitions. [2021-04-29 05:52:11,023 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.55 [2021-04-29 05:52:11,023 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 154 transitions. [2021-04-29 05:52:11,023 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 154 transitions. [2021-04-29 05:52:11,024 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 05:52:11,024 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 154 transitions. [2021-04-29 05:52:11,025 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 30.8) internal successors, (154), 5 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:11,026 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 56.0) internal successors, (336), 6 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:11,026 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 56.0) internal successors, (336), 6 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:11,026 INFO L185 Difference]: Start difference. First operand has 44 places, 85 transitions, 833 flow. Second operand 5 states and 154 transitions. [2021-04-29 05:52:11,027 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 104 transitions, 1203 flow [2021-04-29 05:52:11,036 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 104 transitions, 1116 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-04-29 05:52:11,043 INFO L241 Difference]: Finished difference. Result has 46 places, 95 transitions, 977 flow [2021-04-29 05:52:11,043 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=757, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=977, PETRI_PLACES=46, PETRI_TRANSITIONS=95} [2021-04-29 05:52:11,043 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 0 predicate places. [2021-04-29 05:52:11,044 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 05:52:11,044 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 46 places, 95 transitions, 977 flow [2021-04-29 05:52:11,044 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 46 places, 95 transitions, 977 flow [2021-04-29 05:52:11,046 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 46 places, 95 transitions, 977 flow [2021-04-29 05:52:11,133 INFO L129 PetriNetUnfolder]: 289/587 cut-off events. [2021-04-29 05:52:11,133 INFO L130 PetriNetUnfolder]: For 1593/1653 co-relation queries the response was YES. [2021-04-29 05:52:11,136 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2480 conditions, 587 events. 289/587 cut-off events. For 1593/1653 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 3300 event pairs, 44 based on Foata normal form. 38/619 useless extension candidates. Maximal degree in co-relation 2418. Up to 313 conditions per place. [2021-04-29 05:52:11,144 INFO L146 LiptonReduction]: Number of co-enabled transitions 212 [2021-04-29 05:52:11,168 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 05:52:11,168 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 05:52:11,168 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 124 [2021-04-29 05:52:11,171 INFO L480 AbstractCegarLoop]: Abstraction has has 46 places, 95 transitions, 977 flow [2021-04-29 05:52:11,172 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 27.0) internal successors, (135), 5 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) [2021-04-29 05:52:11,172 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 05:52:11,172 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 05:52:11,172 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-04-29 05:52:11,173 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 05:52:11,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 05:52:11,175 INFO L82 PathProgramCache]: Analyzing trace with hash -1303396068, now seen corresponding path program 6 times [2021-04-29 05:52:11,175 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 05:52:11,188 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956523552] [2021-04-29 05:52:11,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 05:52:11,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 05:52:11,231 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:11,232 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 05:52:11,237 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:11,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:11,244 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:11,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:11,250 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:11,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 05:52:11,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 05:52:11,251 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956523552] [2021-04-29 05:52:11,251 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 05:52:11,252 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-29 05:52:11,252 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937017794] [2021-04-29 05:52:11,252 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-29 05:52:11,252 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 05:52:11,253 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-29 05:52:11,253 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-04-29 05:52:11,254 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 56 [2021-04-29 05:52:11,254 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 95 transitions, 977 flow. Second operand has 5 states, 5 states have (on average 27.0) internal successors, (135), 5 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) [2021-04-29 05:52:11,254 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 05:52:11,254 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 56 [2021-04-29 05:52:11,254 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 05:52:11,421 INFO L129 PetriNetUnfolder]: 357/700 cut-off events. [2021-04-29 05:52:11,421 INFO L130 PetriNetUnfolder]: For 2114/2191 co-relation queries the response was YES. [2021-04-29 05:52:11,424 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3500 conditions, 700 events. 357/700 cut-off events. For 2114/2191 co-relation queries the response was YES. Maximal size of possible extension queue 90. Compared 3986 event pairs, 63 based on Foata normal form. 37/733 useless extension candidates. Maximal degree in co-relation 3437. Up to 531 conditions per place. [2021-04-29 05:52:11,430 INFO L132 encePairwiseOnDemand]: 48/56 looper letters, 53 selfloop transitions, 49 changer transitions 1/112 dead transitions. [2021-04-29 05:52:11,431 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 112 transitions, 1363 flow [2021-04-29 05:52:11,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-29 05:52:11,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-29 05:52:11,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 154 transitions. [2021-04-29 05:52:11,432 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.55 [2021-04-29 05:52:11,432 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 154 transitions. [2021-04-29 05:52:11,433 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 154 transitions. [2021-04-29 05:52:11,433 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 05:52:11,433 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 154 transitions. [2021-04-29 05:52:11,434 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 30.8) internal successors, (154), 5 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:11,435 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 56.0) internal successors, (336), 6 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:11,435 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 56.0) internal successors, (336), 6 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:11,435 INFO L185 Difference]: Start difference. First operand has 46 places, 95 transitions, 977 flow. Second operand 5 states and 154 transitions. [2021-04-29 05:52:11,435 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 112 transitions, 1363 flow [2021-04-29 05:52:11,443 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 112 transitions, 1314 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-29 05:52:11,446 INFO L241 Difference]: Finished difference. Result has 49 places, 104 transitions, 1184 flow [2021-04-29 05:52:11,447 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=936, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=39, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1184, PETRI_PLACES=49, PETRI_TRANSITIONS=104} [2021-04-29 05:52:11,447 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 3 predicate places. [2021-04-29 05:52:11,447 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 05:52:11,447 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 49 places, 104 transitions, 1184 flow [2021-04-29 05:52:11,447 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 49 places, 104 transitions, 1184 flow [2021-04-29 05:52:11,449 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 49 places, 104 transitions, 1184 flow [2021-04-29 05:52:11,531 INFO L129 PetriNetUnfolder]: 275/575 cut-off events. [2021-04-29 05:52:11,531 INFO L130 PetriNetUnfolder]: For 1746/1807 co-relation queries the response was YES. [2021-04-29 05:52:11,534 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2413 conditions, 575 events. 275/575 cut-off events. For 1746/1807 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 3297 event pairs, 33 based on Foata normal form. 29/595 useless extension candidates. Maximal degree in co-relation 2344. Up to 302 conditions per place. [2021-04-29 05:52:11,542 INFO L146 LiptonReduction]: Number of co-enabled transitions 200 [2021-04-29 05:52:11,572 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 05:52:11,572 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 05:52:11,572 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 125 [2021-04-29 05:52:11,573 INFO L480 AbstractCegarLoop]: Abstraction has has 49 places, 104 transitions, 1184 flow [2021-04-29 05:52:11,573 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 27.0) internal successors, (135), 5 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) [2021-04-29 05:52:11,573 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 05:52:11,574 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 05:52:11,574 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-04-29 05:52:11,574 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 05:52:11,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 05:52:11,575 INFO L82 PathProgramCache]: Analyzing trace with hash 604799724, now seen corresponding path program 7 times [2021-04-29 05:52:11,575 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 05:52:11,575 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319390194] [2021-04-29 05:52:11,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 05:52:11,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 05:52:11,595 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:11,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 05:52:11,601 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:11,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:11,607 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:11,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:11,614 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:11,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:11,621 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:11,621 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 05:52:11,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 05:52:11,623 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319390194] [2021-04-29 05:52:11,623 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 05:52:11,623 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-04-29 05:52:11,624 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329575456] [2021-04-29 05:52:11,624 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-29 05:52:11,624 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 05:52:11,624 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-29 05:52:11,625 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-04-29 05:52:11,625 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 56 [2021-04-29 05:52:11,626 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 104 transitions, 1184 flow. Second operand has 6 states, 6 states have (on average 26.666666666666668) internal successors, (160), 6 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:11,626 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 05:52:11,626 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 56 [2021-04-29 05:52:11,626 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 05:52:11,865 INFO L129 PetriNetUnfolder]: 332/658 cut-off events. [2021-04-29 05:52:11,865 INFO L130 PetriNetUnfolder]: For 1998/2016 co-relation queries the response was YES. [2021-04-29 05:52:11,869 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3341 conditions, 658 events. 332/658 cut-off events. For 1998/2016 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 3668 event pairs, 55 based on Foata normal form. 21/678 useless extension candidates. Maximal degree in co-relation 3267. Up to 307 conditions per place. [2021-04-29 05:52:11,876 INFO L132 encePairwiseOnDemand]: 46/56 looper letters, 23 selfloop transitions, 86 changer transitions 0/118 dead transitions. [2021-04-29 05:52:11,876 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 118 transitions, 1555 flow [2021-04-29 05:52:11,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-04-29 05:52:11,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-04-29 05:52:11,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 188 transitions. [2021-04-29 05:52:11,878 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5595238095238095 [2021-04-29 05:52:11,878 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 188 transitions. [2021-04-29 05:52:11,879 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 188 transitions. [2021-04-29 05:52:11,879 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 05:52:11,879 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 188 transitions. [2021-04-29 05:52:11,880 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 31.333333333333332) internal successors, (188), 6 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:11,881 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 56.0) internal successors, (392), 7 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:11,881 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 56.0) internal successors, (392), 7 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:11,881 INFO L185 Difference]: Start difference. First operand has 49 places, 104 transitions, 1184 flow. Second operand 6 states and 188 transitions. [2021-04-29 05:52:11,882 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 118 transitions, 1555 flow [2021-04-29 05:52:11,891 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 118 transitions, 1503 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-29 05:52:11,898 INFO L241 Difference]: Finished difference. Result has 54 places, 112 transitions, 1487 flow [2021-04-29 05:52:11,899 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=1019, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=70, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1487, PETRI_PLACES=54, PETRI_TRANSITIONS=112} [2021-04-29 05:52:11,899 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 8 predicate places. [2021-04-29 05:52:11,899 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 05:52:11,899 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 54 places, 112 transitions, 1487 flow [2021-04-29 05:52:11,900 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 54 places, 112 transitions, 1487 flow [2021-04-29 05:52:11,901 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 54 places, 112 transitions, 1487 flow [2021-04-29 05:52:11,991 INFO L129 PetriNetUnfolder]: 269/560 cut-off events. [2021-04-29 05:52:11,992 INFO L130 PetriNetUnfolder]: For 2009/2049 co-relation queries the response was YES. [2021-04-29 05:52:11,994 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2870 conditions, 560 events. 269/560 cut-off events. For 2009/2049 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 3152 event pairs, 31 based on Foata normal form. 23/578 useless extension candidates. Maximal degree in co-relation 2803. Up to 302 conditions per place. [2021-04-29 05:52:12,007 INFO L146 LiptonReduction]: Number of co-enabled transitions 204 [2021-04-29 05:52:12,039 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 05:52:12,041 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 05:52:12,041 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 142 [2021-04-29 05:52:12,042 INFO L480 AbstractCegarLoop]: Abstraction has has 54 places, 112 transitions, 1487 flow [2021-04-29 05:52:12,042 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 26.666666666666668) internal successors, (160), 6 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:12,042 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 05:52:12,043 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 05:52:12,043 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-04-29 05:52:12,043 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 05:52:12,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 05:52:12,044 INFO L82 PathProgramCache]: Analyzing trace with hash -1094116000, now seen corresponding path program 8 times [2021-04-29 05:52:12,044 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 05:52:12,044 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117679667] [2021-04-29 05:52:12,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 05:52:12,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 05:52:12,082 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:12,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 05:52:12,088 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:12,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:12,096 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:12,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:12,103 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:12,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:12,111 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:12,111 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:12,112 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:12,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:12,119 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:12,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 05:52:12,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 05:52:12,120 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2117679667] [2021-04-29 05:52:12,121 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 05:52:12,121 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-04-29 05:52:12,121 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136122169] [2021-04-29 05:52:12,122 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-04-29 05:52:12,122 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 05:52:12,122 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-04-29 05:52:12,123 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-04-29 05:52:12,124 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 56 [2021-04-29 05:52:12,125 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 112 transitions, 1487 flow. Second operand has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 7 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:12,125 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 05:52:12,125 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 56 [2021-04-29 05:52:12,125 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 05:52:12,414 INFO L129 PetriNetUnfolder]: 367/745 cut-off events. [2021-04-29 05:52:12,414 INFO L130 PetriNetUnfolder]: For 2720/2740 co-relation queries the response was YES. [2021-04-29 05:52:12,417 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4247 conditions, 745 events. 367/745 cut-off events. For 2720/2740 co-relation queries the response was YES. Maximal size of possible extension queue 91. Compared 4386 event pairs, 50 based on Foata normal form. 9/753 useless extension candidates. Maximal degree in co-relation 4170. Up to 365 conditions per place. [2021-04-29 05:52:12,425 INFO L132 encePairwiseOnDemand]: 46/56 looper letters, 21 selfloop transitions, 131 changer transitions 0/161 dead transitions. [2021-04-29 05:52:12,426 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 161 transitions, 2273 flow [2021-04-29 05:52:12,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-04-29 05:52:12,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-04-29 05:52:12,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 222 transitions. [2021-04-29 05:52:12,428 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5663265306122449 [2021-04-29 05:52:12,428 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 222 transitions. [2021-04-29 05:52:12,428 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 222 transitions. [2021-04-29 05:52:12,429 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 05:52:12,429 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 222 transitions. [2021-04-29 05:52:12,430 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 31.714285714285715) internal successors, (222), 7 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:12,431 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 56.0) internal successors, (448), 8 states have internal predecessors, (448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:12,433 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 56.0) internal successors, (448), 8 states have internal predecessors, (448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:12,434 INFO L185 Difference]: Start difference. First operand has 54 places, 112 transitions, 1487 flow. Second operand 7 states and 222 transitions. [2021-04-29 05:52:12,434 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 161 transitions, 2273 flow [2021-04-29 05:52:12,450 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 161 transitions, 2120 flow, removed 15 selfloop flow, removed 3 redundant places. [2021-04-29 05:52:12,460 INFO L241 Difference]: Finished difference. Result has 60 places, 155 transitions, 2253 flow [2021-04-29 05:52:12,460 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=1358, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=96, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=2253, PETRI_PLACES=60, PETRI_TRANSITIONS=155} [2021-04-29 05:52:12,460 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 14 predicate places. [2021-04-29 05:52:12,460 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 05:52:12,461 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 60 places, 155 transitions, 2253 flow [2021-04-29 05:52:12,461 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 60 places, 155 transitions, 2253 flow [2021-04-29 05:52:12,463 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 60 places, 155 transitions, 2253 flow [2021-04-29 05:52:12,605 INFO L129 PetriNetUnfolder]: 305/656 cut-off events. [2021-04-29 05:52:12,606 INFO L130 PetriNetUnfolder]: For 2778/2837 co-relation queries the response was YES. [2021-04-29 05:52:12,609 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3867 conditions, 656 events. 305/656 cut-off events. For 2778/2837 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 3951 event pairs, 31 based on Foata normal form. 34/687 useless extension candidates. Maximal degree in co-relation 3788. Up to 339 conditions per place. [2021-04-29 05:52:12,621 INFO L146 LiptonReduction]: Number of co-enabled transitions 270 [2021-04-29 05:52:12,670 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 05:52:12,670 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 05:52:12,671 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 211 [2021-04-29 05:52:12,673 INFO L480 AbstractCegarLoop]: Abstraction has has 60 places, 155 transitions, 2253 flow [2021-04-29 05:52:12,673 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 7 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:12,673 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 05:52:12,673 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 05:52:12,674 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-04-29 05:52:12,674 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 05:52:12,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 05:52:12,675 INFO L82 PathProgramCache]: Analyzing trace with hash 1740707012, now seen corresponding path program 9 times [2021-04-29 05:52:12,675 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 05:52:12,675 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934166140] [2021-04-29 05:52:12,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 05:52:12,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 05:52:12,715 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:12,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 05:52:12,719 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:12,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:12,725 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:12,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:12,732 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:12,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:12,734 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:12,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:12,741 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:12,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 05:52:12,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 05:52:12,743 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934166140] [2021-04-29 05:52:12,743 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 05:52:12,743 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-04-29 05:52:12,743 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213547888] [2021-04-29 05:52:12,744 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-29 05:52:12,744 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 05:52:12,749 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-29 05:52:12,750 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-04-29 05:52:12,751 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 56 [2021-04-29 05:52:12,751 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 155 transitions, 2253 flow. Second operand has 6 states, 6 states have (on average 26.666666666666668) internal successors, (160), 6 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:12,751 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 05:52:12,751 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 56 [2021-04-29 05:52:12,752 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 05:52:13,031 INFO L129 PetriNetUnfolder]: 269/564 cut-off events. [2021-04-29 05:52:13,031 INFO L130 PetriNetUnfolder]: For 2818/2846 co-relation queries the response was YES. [2021-04-29 05:52:13,034 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3892 conditions, 564 events. 269/564 cut-off events. For 2818/2846 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 3058 event pairs, 46 based on Foata normal form. 35/598 useless extension candidates. Maximal degree in co-relation 3837. Up to 265 conditions per place. [2021-04-29 05:52:13,042 INFO L132 encePairwiseOnDemand]: 46/56 looper letters, 47 selfloop transitions, 104 changer transitions 0/160 dead transitions. [2021-04-29 05:52:13,042 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 160 transitions, 2571 flow [2021-04-29 05:52:13,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-04-29 05:52:13,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-04-29 05:52:13,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 188 transitions. [2021-04-29 05:52:13,045 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5595238095238095 [2021-04-29 05:52:13,045 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 188 transitions. [2021-04-29 05:52:13,045 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 188 transitions. [2021-04-29 05:52:13,046 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 05:52:13,046 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 188 transitions. [2021-04-29 05:52:13,047 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 31.333333333333332) internal successors, (188), 6 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:13,048 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 56.0) internal successors, (392), 7 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:13,049 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 56.0) internal successors, (392), 7 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:13,049 INFO L185 Difference]: Start difference. First operand has 60 places, 155 transitions, 2253 flow. Second operand 6 states and 188 transitions. [2021-04-29 05:52:13,049 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 160 transitions, 2571 flow [2021-04-29 05:52:13,069 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 160 transitions, 2424 flow, removed 63 selfloop flow, removed 2 redundant places. [2021-04-29 05:52:13,076 INFO L241 Difference]: Finished difference. Result has 64 places, 152 transitions, 2300 flow [2021-04-29 05:52:13,077 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=1842, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=92, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2300, PETRI_PLACES=64, PETRI_TRANSITIONS=152} [2021-04-29 05:52:13,077 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 18 predicate places. [2021-04-29 05:52:13,077 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 05:52:13,077 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 64 places, 152 transitions, 2300 flow [2021-04-29 05:52:13,078 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 64 places, 152 transitions, 2300 flow [2021-04-29 05:52:13,080 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 64 places, 152 transitions, 2300 flow [2021-04-29 05:52:13,172 INFO L129 PetriNetUnfolder]: 219/493 cut-off events. [2021-04-29 05:52:13,172 INFO L130 PetriNetUnfolder]: For 2177/2228 co-relation queries the response was YES. [2021-04-29 05:52:13,175 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3137 conditions, 493 events. 219/493 cut-off events. For 2177/2228 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 2796 event pairs, 22 based on Foata normal form. 27/517 useless extension candidates. Maximal degree in co-relation 3081. Up to 208 conditions per place. [2021-04-29 05:52:13,182 INFO L146 LiptonReduction]: Number of co-enabled transitions 192 [2021-04-29 05:52:13,200 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 05:52:13,201 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 05:52:13,201 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 124 [2021-04-29 05:52:13,205 INFO L480 AbstractCegarLoop]: Abstraction has has 64 places, 152 transitions, 2300 flow [2021-04-29 05:52:13,205 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 26.666666666666668) internal successors, (160), 6 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:13,205 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 05:52:13,206 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 05:52:13,206 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-04-29 05:52:13,206 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 05:52:13,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 05:52:13,206 INFO L82 PathProgramCache]: Analyzing trace with hash 1162369970, now seen corresponding path program 10 times [2021-04-29 05:52:13,207 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 05:52:13,207 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522450609] [2021-04-29 05:52:13,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 05:52:13,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 05:52:13,236 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:13,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 05:52:13,242 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:13,242 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:13,247 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:13,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:13,253 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:13,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:13,256 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:13,256 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:13,259 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:13,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:13,263 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:13,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:13,270 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:13,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 05:52:13,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 05:52:13,275 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522450609] [2021-04-29 05:52:13,275 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 05:52:13,275 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-04-29 05:52:13,275 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698097202] [2021-04-29 05:52:13,276 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-29 05:52:13,276 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 05:52:13,276 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-29 05:52:13,277 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-04-29 05:52:13,278 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 56 [2021-04-29 05:52:13,278 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 152 transitions, 2300 flow. Second operand has 6 states, 6 states have (on average 26.666666666666668) internal successors, (160), 6 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:13,279 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 05:52:13,279 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 56 [2021-04-29 05:52:13,279 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 05:52:13,497 INFO L129 PetriNetUnfolder]: 264/570 cut-off events. [2021-04-29 05:52:13,498 INFO L130 PetriNetUnfolder]: For 2997/3119 co-relation queries the response was YES. [2021-04-29 05:52:13,501 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4077 conditions, 570 events. 264/570 cut-off events. For 2997/3119 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 3210 event pairs, 52 based on Foata normal form. 57/626 useless extension candidates. Maximal degree in co-relation 4018. Up to 265 conditions per place. [2021-04-29 05:52:13,508 INFO L132 encePairwiseOnDemand]: 47/56 looper letters, 48 selfloop transitions, 108 changer transitions 4/169 dead transitions. [2021-04-29 05:52:13,508 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 169 transitions, 2849 flow [2021-04-29 05:52:13,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-04-29 05:52:13,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-04-29 05:52:13,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 189 transitions. [2021-04-29 05:52:13,510 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5625 [2021-04-29 05:52:13,510 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 189 transitions. [2021-04-29 05:52:13,510 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 189 transitions. [2021-04-29 05:52:13,511 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 05:52:13,511 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 189 transitions. [2021-04-29 05:52:13,512 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 31.5) internal successors, (189), 6 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:13,513 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 56.0) internal successors, (392), 7 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:13,513 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 56.0) internal successors, (392), 7 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:13,513 INFO L185 Difference]: Start difference. First operand has 64 places, 152 transitions, 2300 flow. Second operand 6 states and 189 transitions. [2021-04-29 05:52:13,514 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 169 transitions, 2849 flow [2021-04-29 05:52:13,540 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 169 transitions, 2666 flow, removed 16 selfloop flow, removed 4 redundant places. [2021-04-29 05:52:13,545 INFO L241 Difference]: Finished difference. Result has 65 places, 155 transitions, 2401 flow [2021-04-29 05:52:13,546 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=2087, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=149, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=101, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2401, PETRI_PLACES=65, PETRI_TRANSITIONS=155} [2021-04-29 05:52:13,547 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 19 predicate places. [2021-04-29 05:52:13,547 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 05:52:13,547 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 65 places, 155 transitions, 2401 flow [2021-04-29 05:52:13,547 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 65 places, 155 transitions, 2401 flow [2021-04-29 05:52:13,550 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 65 places, 155 transitions, 2401 flow [2021-04-29 05:52:13,621 INFO L129 PetriNetUnfolder]: 210/491 cut-off events. [2021-04-29 05:52:13,621 INFO L130 PetriNetUnfolder]: For 2282/2350 co-relation queries the response was YES. [2021-04-29 05:52:13,624 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3067 conditions, 491 events. 210/491 cut-off events. For 2282/2350 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 2907 event pairs, 22 based on Foata normal form. 16/500 useless extension candidates. Maximal degree in co-relation 3012. Up to 191 conditions per place. [2021-04-29 05:52:13,631 INFO L146 LiptonReduction]: Number of co-enabled transitions 192 [2021-04-29 05:52:13,649 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 05:52:13,649 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 05:52:13,649 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 102 [2021-04-29 05:52:13,652 INFO L480 AbstractCegarLoop]: Abstraction has has 65 places, 155 transitions, 2401 flow [2021-04-29 05:52:13,652 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 26.666666666666668) internal successors, (160), 6 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:13,652 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 05:52:13,652 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 05:52:13,652 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-04-29 05:52:13,653 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 05:52:13,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 05:52:13,653 INFO L82 PathProgramCache]: Analyzing trace with hash 1448333838, now seen corresponding path program 11 times [2021-04-29 05:52:13,653 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 05:52:13,653 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760667453] [2021-04-29 05:52:13,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 05:52:13,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 05:52:13,693 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:13,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 05:52:13,697 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:13,698 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:13,703 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:13,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 05:52:13,714 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:13,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:13,715 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:13,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:13,723 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:13,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:13,731 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:13,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 05:52:13,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 05:52:13,734 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760667453] [2021-04-29 05:52:13,734 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 05:52:13,734 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-04-29 05:52:13,734 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733381727] [2021-04-29 05:52:13,735 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-04-29 05:52:13,735 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 05:52:13,736 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-04-29 05:52:13,736 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-04-29 05:52:13,737 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 56 [2021-04-29 05:52:13,737 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 155 transitions, 2401 flow. Second operand has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 7 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:13,737 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 05:52:13,737 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 56 [2021-04-29 05:52:13,737 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 05:52:13,987 INFO L129 PetriNetUnfolder]: 265/618 cut-off events. [2021-04-29 05:52:13,987 INFO L130 PetriNetUnfolder]: For 2900/2928 co-relation queries the response was YES. [2021-04-29 05:52:13,990 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4181 conditions, 618 events. 265/618 cut-off events. For 2900/2928 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 3696 event pairs, 3 based on Foata normal form. 12/629 useless extension candidates. Maximal degree in co-relation 4106. Up to 232 conditions per place. [2021-04-29 05:52:13,996 INFO L132 encePairwiseOnDemand]: 47/56 looper letters, 25 selfloop transitions, 157 changer transitions 2/193 dead transitions. [2021-04-29 05:52:13,997 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 193 transitions, 3088 flow [2021-04-29 05:52:13,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-04-29 05:52:13,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-04-29 05:52:13,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 222 transitions. [2021-04-29 05:52:13,999 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5663265306122449 [2021-04-29 05:52:13,999 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 222 transitions. [2021-04-29 05:52:13,999 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 222 transitions. [2021-04-29 05:52:13,999 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 05:52:13,999 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 222 transitions. [2021-04-29 05:52:14,000 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 31.714285714285715) internal successors, (222), 7 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:14,001 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 56.0) internal successors, (448), 8 states have internal predecessors, (448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:14,002 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 56.0) internal successors, (448), 8 states have internal predecessors, (448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:14,002 INFO L185 Difference]: Start difference. First operand has 65 places, 155 transitions, 2401 flow. Second operand 7 states and 222 transitions. [2021-04-29 05:52:14,002 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 193 transitions, 3088 flow [2021-04-29 05:52:14,019 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 193 transitions, 2965 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-04-29 05:52:14,025 INFO L241 Difference]: Finished difference. Result has 70 places, 183 transitions, 3034 flow [2021-04-29 05:52:14,025 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=2278, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=155, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=135, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=3034, PETRI_PLACES=70, PETRI_TRANSITIONS=183} [2021-04-29 05:52:14,026 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 24 predicate places. [2021-04-29 05:52:14,026 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 05:52:14,026 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 70 places, 183 transitions, 3034 flow [2021-04-29 05:52:14,026 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 70 places, 183 transitions, 3034 flow [2021-04-29 05:52:14,029 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 70 places, 183 transitions, 3034 flow [2021-04-29 05:52:14,128 INFO L129 PetriNetUnfolder]: 225/547 cut-off events. [2021-04-29 05:52:14,128 INFO L130 PetriNetUnfolder]: For 3668/3749 co-relation queries the response was YES. [2021-04-29 05:52:14,131 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3734 conditions, 547 events. 225/547 cut-off events. For 3668/3749 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 3322 event pairs, 2 based on Foata normal form. 21/564 useless extension candidates. Maximal degree in co-relation 3664. Up to 218 conditions per place. [2021-04-29 05:52:14,139 INFO L146 LiptonReduction]: Number of co-enabled transitions 228 [2021-04-29 05:52:14,166 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 05:52:14,166 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 05:52:14,167 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 141 [2021-04-29 05:52:14,167 INFO L480 AbstractCegarLoop]: Abstraction has has 70 places, 183 transitions, 3034 flow [2021-04-29 05:52:14,168 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 7 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:14,168 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 05:52:14,168 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 05:52:14,168 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-04-29 05:52:14,168 INFO L428 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 05:52:14,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 05:52:14,169 INFO L82 PathProgramCache]: Analyzing trace with hash -865747918, now seen corresponding path program 12 times [2021-04-29 05:52:14,169 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 05:52:14,169 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465378002] [2021-04-29 05:52:14,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 05:52:14,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 05:52:14,184 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:14,185 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 05:52:14,188 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:14,189 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:14,193 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:14,194 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:14,201 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:14,202 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:14,202 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:14,203 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:14,203 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:14,204 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:14,211 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:14,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:14,219 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:14,220 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 05:52:14,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 05:52:14,220 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465378002] [2021-04-29 05:52:14,221 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 05:52:14,221 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-04-29 05:52:14,221 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876402042] [2021-04-29 05:52:14,221 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-04-29 05:52:14,221 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 05:52:14,222 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-04-29 05:52:14,222 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-04-29 05:52:14,223 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 56 [2021-04-29 05:52:14,223 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 183 transitions, 3034 flow. Second operand has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 7 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:14,223 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 05:52:14,223 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 56 [2021-04-29 05:52:14,224 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 05:52:14,541 INFO L129 PetriNetUnfolder]: 271/641 cut-off events. [2021-04-29 05:52:14,542 INFO L130 PetriNetUnfolder]: For 4237/4261 co-relation queries the response was YES. [2021-04-29 05:52:14,545 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4940 conditions, 641 events. 271/641 cut-off events. For 4237/4261 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 3964 event pairs, 18 based on Foata normal form. 25/665 useless extension candidates. Maximal degree in co-relation 4865. Up to 306 conditions per place. [2021-04-29 05:52:14,553 INFO L132 encePairwiseOnDemand]: 47/56 looper letters, 81 selfloop transitions, 118 changer transitions 5/213 dead transitions. [2021-04-29 05:52:14,553 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 213 transitions, 3855 flow [2021-04-29 05:52:14,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-04-29 05:52:14,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-04-29 05:52:14,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 253 transitions. [2021-04-29 05:52:14,555 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5647321428571429 [2021-04-29 05:52:14,555 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 253 transitions. [2021-04-29 05:52:14,556 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 253 transitions. [2021-04-29 05:52:14,556 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 05:52:14,556 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 253 transitions. [2021-04-29 05:52:14,557 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 31.625) internal successors, (253), 8 states have internal predecessors, (253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:14,558 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 56.0) internal successors, (504), 9 states have internal predecessors, (504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:14,559 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 56.0) internal successors, (504), 9 states have internal predecessors, (504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:14,559 INFO L185 Difference]: Start difference. First operand has 70 places, 183 transitions, 3034 flow. Second operand 8 states and 253 transitions. [2021-04-29 05:52:14,559 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 213 transitions, 3855 flow [2021-04-29 05:52:14,590 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 213 transitions, 3785 flow, removed 33 selfloop flow, removed 1 redundant places. [2021-04-29 05:52:14,598 INFO L241 Difference]: Finished difference. Result has 76 places, 193 transitions, 3379 flow [2021-04-29 05:52:14,599 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=2964, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=183, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=104, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=3379, PETRI_PLACES=76, PETRI_TRANSITIONS=193} [2021-04-29 05:52:14,599 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 30 predicate places. [2021-04-29 05:52:14,599 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 05:52:14,600 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 76 places, 193 transitions, 3379 flow [2021-04-29 05:52:14,600 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 76 places, 193 transitions, 3379 flow [2021-04-29 05:52:14,604 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 76 places, 193 transitions, 3379 flow [2021-04-29 05:52:14,694 INFO L129 PetriNetUnfolder]: 227/555 cut-off events. [2021-04-29 05:52:14,694 INFO L130 PetriNetUnfolder]: For 4585/4684 co-relation queries the response was YES. [2021-04-29 05:52:14,697 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3964 conditions, 555 events. 227/555 cut-off events. For 4585/4684 co-relation queries the response was YES. Maximal size of possible extension queue 74. Compared 3414 event pairs, 0 based on Foata normal form. 38/592 useless extension candidates. Maximal degree in co-relation 3895. Up to 227 conditions per place. [2021-04-29 05:52:14,706 INFO L146 LiptonReduction]: Number of co-enabled transitions 232 [2021-04-29 05:52:14,734 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 05:52:14,734 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 05:52:14,734 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 135 [2021-04-29 05:52:14,735 INFO L480 AbstractCegarLoop]: Abstraction has has 76 places, 193 transitions, 3379 flow [2021-04-29 05:52:14,736 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 7 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:14,736 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 05:52:14,736 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 05:52:14,736 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-04-29 05:52:14,736 INFO L428 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 05:52:14,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 05:52:14,737 INFO L82 PathProgramCache]: Analyzing trace with hash 1784236776, now seen corresponding path program 13 times [2021-04-29 05:52:14,737 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 05:52:14,737 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554607515] [2021-04-29 05:52:14,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 05:52:14,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 05:52:14,752 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:14,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 05:52:14,756 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:14,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:14,761 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:14,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 05:52:14,768 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:14,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:14,769 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:14,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:14,775 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:14,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 05:52:14,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 05:52:14,776 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554607515] [2021-04-29 05:52:14,776 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 05:52:14,776 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-04-29 05:52:14,776 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766014271] [2021-04-29 05:52:14,777 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-29 05:52:14,777 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 05:52:14,777 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-29 05:52:14,778 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-04-29 05:52:14,778 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 56 [2021-04-29 05:52:14,778 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 193 transitions, 3379 flow. Second operand has 6 states, 6 states have (on average 26.666666666666668) internal successors, (160), 6 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:14,779 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 05:52:14,779 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 56 [2021-04-29 05:52:14,779 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 05:52:15,041 INFO L129 PetriNetUnfolder]: 289/714 cut-off events. [2021-04-29 05:52:15,041 INFO L130 PetriNetUnfolder]: For 4754/4778 co-relation queries the response was YES. [2021-04-29 05:52:15,045 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5421 conditions, 714 events. 289/714 cut-off events. For 4754/4778 co-relation queries the response was YES. Maximal size of possible extension queue 102. Compared 4663 event pairs, 14 based on Foata normal form. 18/731 useless extension candidates. Maximal degree in co-relation 5336. Up to 253 conditions per place. [2021-04-29 05:52:15,053 INFO L132 encePairwiseOnDemand]: 47/56 looper letters, 74 selfloop transitions, 151 changer transitions 3/237 dead transitions. [2021-04-29 05:52:15,053 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 237 transitions, 4301 flow [2021-04-29 05:52:15,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-04-29 05:52:15,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-04-29 05:52:15,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 188 transitions. [2021-04-29 05:52:15,055 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5595238095238095 [2021-04-29 05:52:15,055 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 188 transitions. [2021-04-29 05:52:15,056 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 188 transitions. [2021-04-29 05:52:15,056 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 05:52:15,056 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 188 transitions. [2021-04-29 05:52:15,057 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 31.333333333333332) internal successors, (188), 6 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:15,058 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 56.0) internal successors, (392), 7 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:15,058 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 56.0) internal successors, (392), 7 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:15,058 INFO L185 Difference]: Start difference. First operand has 76 places, 193 transitions, 3379 flow. Second operand 6 states and 188 transitions. [2021-04-29 05:52:15,059 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 237 transitions, 4301 flow [2021-04-29 05:52:15,089 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 237 transitions, 4055 flow, removed 4 selfloop flow, removed 5 redundant places. [2021-04-29 05:52:15,096 INFO L241 Difference]: Finished difference. Result has 79 places, 217 transitions, 4002 flow [2021-04-29 05:52:15,097 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=3135, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=193, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=133, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=4002, PETRI_PLACES=79, PETRI_TRANSITIONS=217} [2021-04-29 05:52:15,097 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 33 predicate places. [2021-04-29 05:52:15,097 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 05:52:15,097 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 79 places, 217 transitions, 4002 flow [2021-04-29 05:52:15,098 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 79 places, 217 transitions, 4002 flow [2021-04-29 05:52:15,101 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 79 places, 217 transitions, 4002 flow [2021-04-29 05:52:15,211 INFO L129 PetriNetUnfolder]: 237/622 cut-off events. [2021-04-29 05:52:15,211 INFO L130 PetriNetUnfolder]: For 6351/6492 co-relation queries the response was YES. [2021-04-29 05:52:15,214 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4735 conditions, 622 events. 237/622 cut-off events. For 6351/6492 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 4159 event pairs, 1 based on Foata normal form. 31/649 useless extension candidates. Maximal degree in co-relation 4651. Up to 246 conditions per place. [2021-04-29 05:52:15,225 INFO L146 LiptonReduction]: Number of co-enabled transitions 256 [2021-04-29 05:52:15,264 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 05:52:15,264 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 05:52:15,265 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 168 [2021-04-29 05:52:15,266 INFO L480 AbstractCegarLoop]: Abstraction has has 79 places, 217 transitions, 4002 flow [2021-04-29 05:52:15,266 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 26.666666666666668) internal successors, (160), 6 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:15,266 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 05:52:15,266 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 05:52:15,266 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-04-29 05:52:15,267 INFO L428 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 05:52:15,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 05:52:15,267 INFO L82 PathProgramCache]: Analyzing trace with hash -828303430, now seen corresponding path program 14 times [2021-04-29 05:52:15,267 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 05:52:15,267 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020232559] [2021-04-29 05:52:15,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 05:52:15,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 05:52:15,283 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:15,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 05:52:15,287 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:15,288 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:15,293 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:15,293 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:15,299 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:15,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:15,307 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:15,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:15,315 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:15,316 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:15,324 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:15,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 05:52:15,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 05:52:15,325 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2020232559] [2021-04-29 05:52:15,325 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 05:52:15,325 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-04-29 05:52:15,326 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953668922] [2021-04-29 05:52:15,326 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-04-29 05:52:15,326 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 05:52:15,327 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-04-29 05:52:15,327 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-04-29 05:52:15,328 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 56 [2021-04-29 05:52:15,328 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 217 transitions, 4002 flow. Second operand has 8 states, 8 states have (on average 26.25) internal successors, (210), 8 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:15,328 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 05:52:15,328 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 56 [2021-04-29 05:52:15,328 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 05:52:15,720 INFO L129 PetriNetUnfolder]: 289/719 cut-off events. [2021-04-29 05:52:15,720 INFO L130 PetriNetUnfolder]: For 6374/6394 co-relation queries the response was YES. [2021-04-29 05:52:15,724 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6104 conditions, 719 events. 289/719 cut-off events. For 6374/6394 co-relation queries the response was YES. Maximal size of possible extension queue 108. Compared 4769 event pairs, 18 based on Foata normal form. 9/727 useless extension candidates. Maximal degree in co-relation 6022. Up to 289 conditions per place. [2021-04-29 05:52:15,733 INFO L132 encePairwiseOnDemand]: 46/56 looper letters, 72 selfloop transitions, 153 changer transitions 0/234 dead transitions. [2021-04-29 05:52:15,733 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 234 transitions, 4769 flow [2021-04-29 05:52:15,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-04-29 05:52:15,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-04-29 05:52:15,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 277 transitions. [2021-04-29 05:52:15,735 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5496031746031746 [2021-04-29 05:52:15,735 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 277 transitions. [2021-04-29 05:52:15,735 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 277 transitions. [2021-04-29 05:52:15,736 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 05:52:15,736 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 277 transitions. [2021-04-29 05:52:15,737 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 30.77777777777778) internal successors, (277), 9 states have internal predecessors, (277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:15,738 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 56.0) internal successors, (560), 10 states have internal predecessors, (560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:15,738 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 56.0) internal successors, (560), 10 states have internal predecessors, (560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:15,738 INFO L185 Difference]: Start difference. First operand has 79 places, 217 transitions, 4002 flow. Second operand 9 states and 277 transitions. [2021-04-29 05:52:15,739 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 234 transitions, 4769 flow [2021-04-29 05:52:15,786 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 234 transitions, 4735 flow, removed 15 selfloop flow, removed 1 redundant places. [2021-04-29 05:52:15,793 INFO L241 Difference]: Finished difference. Result has 87 places, 228 transitions, 4541 flow [2021-04-29 05:52:15,794 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=3974, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=217, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=142, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=4541, PETRI_PLACES=87, PETRI_TRANSITIONS=228} [2021-04-29 05:52:15,794 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 41 predicate places. [2021-04-29 05:52:15,794 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 05:52:15,794 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 87 places, 228 transitions, 4541 flow [2021-04-29 05:52:15,795 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 87 places, 228 transitions, 4541 flow [2021-04-29 05:52:15,798 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 87 places, 228 transitions, 4541 flow [2021-04-29 05:52:15,912 INFO L129 PetriNetUnfolder]: 240/636 cut-off events. [2021-04-29 05:52:15,912 INFO L130 PetriNetUnfolder]: For 6677/6754 co-relation queries the response was YES. [2021-04-29 05:52:15,916 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5217 conditions, 636 events. 240/636 cut-off events. For 6677/6754 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 4330 event pairs, 2 based on Foata normal form. 30/663 useless extension candidates. Maximal degree in co-relation 5132. Up to 254 conditions per place. [2021-04-29 05:52:15,928 INFO L146 LiptonReduction]: Number of co-enabled transitions 256 [2021-04-29 05:52:15,965 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 05:52:15,965 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 05:52:15,965 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 171 [2021-04-29 05:52:15,966 INFO L480 AbstractCegarLoop]: Abstraction has has 87 places, 228 transitions, 4541 flow [2021-04-29 05:52:15,966 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 26.25) internal successors, (210), 8 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:15,967 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 05:52:15,967 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 05:52:15,967 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-04-29 05:52:15,967 INFO L428 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 05:52:15,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 05:52:15,968 INFO L82 PathProgramCache]: Analyzing trace with hash 1629107820, now seen corresponding path program 15 times [2021-04-29 05:52:15,968 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 05:52:15,968 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864048394] [2021-04-29 05:52:15,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 05:52:15,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 05:52:15,983 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:15,983 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 05:52:15,986 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:15,987 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:15,991 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:15,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 05:52:16,001 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:16,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:16,002 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:16,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 05:52:16,003 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:16,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:16,004 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:16,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:16,010 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:16,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 05:52:16,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 05:52:16,011 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [864048394] [2021-04-29 05:52:16,011 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 05:52:16,011 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-04-29 05:52:16,012 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621442324] [2021-04-29 05:52:16,012 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-29 05:52:16,012 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 05:52:16,013 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-29 05:52:16,013 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-04-29 05:52:16,013 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 56 [2021-04-29 05:52:16,014 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 228 transitions, 4541 flow. Second operand has 6 states, 6 states have (on average 26.666666666666668) internal successors, (160), 6 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:16,014 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 05:52:16,014 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 56 [2021-04-29 05:52:16,014 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 05:52:16,316 INFO L129 PetriNetUnfolder]: 285/735 cut-off events. [2021-04-29 05:52:16,316 INFO L130 PetriNetUnfolder]: For 9168/9190 co-relation queries the response was YES. [2021-04-29 05:52:16,321 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6563 conditions, 735 events. 285/735 cut-off events. For 9168/9190 co-relation queries the response was YES. Maximal size of possible extension queue 114. Compared 5058 event pairs, 21 based on Foata normal form. 26/760 useless extension candidates. Maximal degree in co-relation 6476. Up to 263 conditions per place. [2021-04-29 05:52:16,329 INFO L132 encePairwiseOnDemand]: 47/56 looper letters, 73 selfloop transitions, 167 changer transitions 1/250 dead transitions. [2021-04-29 05:52:16,330 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 250 transitions, 5325 flow [2021-04-29 05:52:16,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-04-29 05:52:16,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-04-29 05:52:16,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 188 transitions. [2021-04-29 05:52:16,331 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5595238095238095 [2021-04-29 05:52:16,332 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 188 transitions. [2021-04-29 05:52:16,332 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 188 transitions. [2021-04-29 05:52:16,332 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 05:52:16,332 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 188 transitions. [2021-04-29 05:52:16,333 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 31.333333333333332) internal successors, (188), 6 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:16,334 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 56.0) internal successors, (392), 7 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:16,334 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 56.0) internal successors, (392), 7 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:16,334 INFO L185 Difference]: Start difference. First operand has 87 places, 228 transitions, 4541 flow. Second operand 6 states and 188 transitions. [2021-04-29 05:52:16,334 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 250 transitions, 5325 flow [2021-04-29 05:52:16,379 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 250 transitions, 5053 flow, removed 5 selfloop flow, removed 5 redundant places. [2021-04-29 05:52:16,387 INFO L241 Difference]: Finished difference. Result has 88 places, 235 transitions, 4829 flow [2021-04-29 05:52:16,388 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=4248, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=227, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=159, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=4829, PETRI_PLACES=88, PETRI_TRANSITIONS=235} [2021-04-29 05:52:16,388 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 42 predicate places. [2021-04-29 05:52:16,388 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 05:52:16,388 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 88 places, 235 transitions, 4829 flow [2021-04-29 05:52:16,389 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 88 places, 235 transitions, 4829 flow [2021-04-29 05:52:16,392 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 88 places, 235 transitions, 4829 flow [2021-04-29 05:52:16,511 INFO L129 PetriNetUnfolder]: 234/635 cut-off events. [2021-04-29 05:52:16,511 INFO L130 PetriNetUnfolder]: For 8001/8147 co-relation queries the response was YES. [2021-04-29 05:52:16,515 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5465 conditions, 635 events. 234/635 cut-off events. For 8001/8147 co-relation queries the response was YES. Maximal size of possible extension queue 102. Compared 4425 event pairs, 3 based on Foata normal form. 30/662 useless extension candidates. Maximal degree in co-relation 5382. Up to 248 conditions per place. [2021-04-29 05:52:16,525 INFO L146 LiptonReduction]: Number of co-enabled transitions 258 [2021-04-29 05:52:16,560 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 05:52:16,561 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 05:52:16,561 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 173 [2021-04-29 05:52:16,562 INFO L480 AbstractCegarLoop]: Abstraction has has 88 places, 235 transitions, 4829 flow [2021-04-29 05:52:16,562 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 26.666666666666668) internal successors, (160), 6 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:16,562 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 05:52:16,562 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 05:52:16,562 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-04-29 05:52:16,563 INFO L428 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 05:52:16,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 05:52:16,563 INFO L82 PathProgramCache]: Analyzing trace with hash -1529659862, now seen corresponding path program 16 times [2021-04-29 05:52:16,563 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 05:52:16,563 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293621941] [2021-04-29 05:52:16,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 05:52:16,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 05:52:16,578 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:16,579 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 05:52:16,583 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:16,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:16,589 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:16,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 05:52:16,595 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:16,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:16,596 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:16,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 05:52:16,597 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:16,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:16,598 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:16,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:16,605 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:16,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 05:52:16,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 05:52:16,606 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293621941] [2021-04-29 05:52:16,606 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 05:52:16,606 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-04-29 05:52:16,607 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189508234] [2021-04-29 05:52:16,607 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-29 05:52:16,607 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 05:52:16,608 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-29 05:52:16,608 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-04-29 05:52:16,608 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 56 [2021-04-29 05:52:16,609 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 235 transitions, 4829 flow. Second operand has 6 states, 6 states have (on average 26.666666666666668) internal successors, (160), 6 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:16,609 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 05:52:16,609 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 56 [2021-04-29 05:52:16,609 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 05:52:16,920 INFO L129 PetriNetUnfolder]: 269/714 cut-off events. [2021-04-29 05:52:16,920 INFO L130 PetriNetUnfolder]: For 9605/9625 co-relation queries the response was YES. [2021-04-29 05:52:16,924 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6663 conditions, 714 events. 269/714 cut-off events. For 9605/9625 co-relation queries the response was YES. Maximal size of possible extension queue 114. Compared 4980 event pairs, 28 based on Foata normal form. 21/734 useless extension candidates. Maximal degree in co-relation 6574. Up to 256 conditions per place. [2021-04-29 05:52:16,930 INFO L132 encePairwiseOnDemand]: 46/56 looper letters, 70 selfloop transitions, 169 changer transitions 2/250 dead transitions. [2021-04-29 05:52:16,930 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 250 transitions, 5532 flow [2021-04-29 05:52:16,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-04-29 05:52:16,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-04-29 05:52:16,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 188 transitions. [2021-04-29 05:52:16,932 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5595238095238095 [2021-04-29 05:52:16,932 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 188 transitions. [2021-04-29 05:52:16,932 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 188 transitions. [2021-04-29 05:52:16,933 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 05:52:16,933 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 188 transitions. [2021-04-29 05:52:16,933 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 31.333333333333332) internal successors, (188), 6 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:16,935 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 56.0) internal successors, (392), 7 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:16,935 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 56.0) internal successors, (392), 7 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:16,935 INFO L185 Difference]: Start difference. First operand has 88 places, 235 transitions, 4829 flow. Second operand 6 states and 188 transitions. [2021-04-29 05:52:16,935 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 250 transitions, 5532 flow [2021-04-29 05:52:16,977 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 250 transitions, 5291 flow, removed 11 selfloop flow, removed 4 redundant places. [2021-04-29 05:52:16,985 INFO L241 Difference]: Finished difference. Result has 91 places, 238 transitions, 5135 flow [2021-04-29 05:52:16,986 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=4535, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=231, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=160, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=5135, PETRI_PLACES=91, PETRI_TRANSITIONS=238} [2021-04-29 05:52:16,986 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 45 predicate places. [2021-04-29 05:52:16,986 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 05:52:16,986 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 91 places, 238 transitions, 5135 flow [2021-04-29 05:52:16,987 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 91 places, 238 transitions, 5135 flow [2021-04-29 05:52:16,990 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 91 places, 238 transitions, 5135 flow [2021-04-29 05:52:17,109 INFO L129 PetriNetUnfolder]: 217/623 cut-off events. [2021-04-29 05:52:17,110 INFO L130 PetriNetUnfolder]: For 8565/8640 co-relation queries the response was YES. [2021-04-29 05:52:17,113 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5664 conditions, 623 events. 217/623 cut-off events. For 8565/8640 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 4513 event pairs, 2 based on Foata normal form. 27/650 useless extension candidates. Maximal degree in co-relation 5576. Up to 233 conditions per place. [2021-04-29 05:52:17,122 INFO L146 LiptonReduction]: Number of co-enabled transitions 252 [2021-04-29 05:52:17,156 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 05:52:17,157 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 05:52:17,157 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 171 [2021-04-29 05:52:17,158 INFO L480 AbstractCegarLoop]: Abstraction has has 91 places, 238 transitions, 5135 flow [2021-04-29 05:52:17,158 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 26.666666666666668) internal successors, (160), 6 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:17,158 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 05:52:17,158 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 05:52:17,158 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-04-29 05:52:17,159 INFO L428 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 05:52:17,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 05:52:17,159 INFO L82 PathProgramCache]: Analyzing trace with hash 1657348448, now seen corresponding path program 17 times [2021-04-29 05:52:17,159 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 05:52:17,160 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1357773787] [2021-04-29 05:52:17,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 05:52:17,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 05:52:17,174 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:17,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 05:52:17,178 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:17,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:17,183 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:17,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 05:52:17,189 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:17,189 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:17,190 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:17,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:17,196 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:17,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:17,197 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:17,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:17,204 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:17,204 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 05:52:17,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 05:52:17,205 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1357773787] [2021-04-29 05:52:17,205 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 05:52:17,205 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-04-29 05:52:17,205 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920195298] [2021-04-29 05:52:17,205 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-04-29 05:52:17,206 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 05:52:17,206 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-04-29 05:52:17,206 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-04-29 05:52:17,207 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 56 [2021-04-29 05:52:17,207 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 238 transitions, 5135 flow. Second operand has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 7 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:17,207 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 05:52:17,208 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 56 [2021-04-29 05:52:17,208 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 05:52:17,507 INFO L129 PetriNetUnfolder]: 261/712 cut-off events. [2021-04-29 05:52:17,508 INFO L130 PetriNetUnfolder]: For 8898/8918 co-relation queries the response was YES. [2021-04-29 05:52:17,511 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7031 conditions, 712 events. 261/712 cut-off events. For 8898/8918 co-relation queries the response was YES. Maximal size of possible extension queue 114. Compared 5013 event pairs, 2 based on Foata normal form. 10/721 useless extension candidates. Maximal degree in co-relation 6941. Up to 256 conditions per place. [2021-04-29 05:52:17,515 INFO L132 encePairwiseOnDemand]: 46/56 looper letters, 30 selfloop transitions, 206 changer transitions 9/254 dead transitions. [2021-04-29 05:52:17,515 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 254 transitions, 5861 flow [2021-04-29 05:52:17,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-04-29 05:52:17,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-04-29 05:52:17,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 221 transitions. [2021-04-29 05:52:17,520 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5637755102040817 [2021-04-29 05:52:17,520 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 221 transitions. [2021-04-29 05:52:17,520 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 221 transitions. [2021-04-29 05:52:17,520 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 05:52:17,520 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 221 transitions. [2021-04-29 05:52:17,521 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 31.571428571428573) internal successors, (221), 7 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:17,522 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 56.0) internal successors, (448), 8 states have internal predecessors, (448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:17,523 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 56.0) internal successors, (448), 8 states have internal predecessors, (448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:17,523 INFO L185 Difference]: Start difference. First operand has 91 places, 238 transitions, 5135 flow. Second operand 7 states and 221 transitions. [2021-04-29 05:52:17,523 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 254 transitions, 5861 flow [2021-04-29 05:52:17,569 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 254 transitions, 5648 flow, removed 9 selfloop flow, removed 3 redundant places. [2021-04-29 05:52:17,576 INFO L241 Difference]: Finished difference. Result has 95 places, 234 transitions, 5336 flow [2021-04-29 05:52:17,577 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=4925, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=238, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=206, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=5336, PETRI_PLACES=95, PETRI_TRANSITIONS=234} [2021-04-29 05:52:17,577 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 49 predicate places. [2021-04-29 05:52:17,577 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 05:52:17,578 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 95 places, 234 transitions, 5336 flow [2021-04-29 05:52:17,578 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 95 places, 234 transitions, 5336 flow [2021-04-29 05:52:17,581 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 95 places, 234 transitions, 5336 flow [2021-04-29 05:52:17,671 INFO L129 PetriNetUnfolder]: 209/603 cut-off events. [2021-04-29 05:52:17,671 INFO L130 PetriNetUnfolder]: For 9922/10094 co-relation queries the response was YES. [2021-04-29 05:52:17,674 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5864 conditions, 603 events. 209/603 cut-off events. For 9922/10094 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 4319 event pairs, 2 based on Foata normal form. 35/637 useless extension candidates. Maximal degree in co-relation 5782. Up to 212 conditions per place. [2021-04-29 05:52:17,680 INFO L146 LiptonReduction]: Number of co-enabled transitions 252 [2021-04-29 05:52:17,703 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 05:52:17,703 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 05:52:17,703 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 126 [2021-04-29 05:52:17,704 INFO L480 AbstractCegarLoop]: Abstraction has has 95 places, 234 transitions, 5336 flow [2021-04-29 05:52:17,704 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 7 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:17,704 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 05:52:17,704 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 05:52:17,705 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-04-29 05:52:17,705 INFO L428 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 05:52:17,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 05:52:17,705 INFO L82 PathProgramCache]: Analyzing trace with hash -874389396, now seen corresponding path program 18 times [2021-04-29 05:52:17,706 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 05:52:17,706 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424495839] [2021-04-29 05:52:17,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 05:52:17,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 05:52:17,724 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:17,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 05:52:17,728 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:17,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:17,734 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:17,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 05:52:17,741 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:17,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:17,742 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:17,743 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:17,748 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:17,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:17,756 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:17,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:17,765 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:17,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 05:52:17,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 05:52:17,766 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424495839] [2021-04-29 05:52:17,766 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 05:52:17,766 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-04-29 05:52:17,766 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98419818] [2021-04-29 05:52:17,767 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-04-29 05:52:17,767 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 05:52:17,767 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-04-29 05:52:17,767 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-04-29 05:52:17,768 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 56 [2021-04-29 05:52:17,768 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 234 transitions, 5336 flow. Second operand has 8 states, 8 states have (on average 26.25) internal successors, (210), 8 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:17,769 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 05:52:17,769 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 56 [2021-04-29 05:52:17,769 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 05:52:18,194 INFO L129 PetriNetUnfolder]: 251/707 cut-off events. [2021-04-29 05:52:18,194 INFO L130 PetriNetUnfolder]: For 9911/9933 co-relation queries the response was YES. [2021-04-29 05:52:18,199 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7439 conditions, 707 events. 251/707 cut-off events. For 9911/9933 co-relation queries the response was YES. Maximal size of possible extension queue 120. Compared 5087 event pairs, 2 based on Foata normal form. 26/732 useless extension candidates. Maximal degree in co-relation 7351. Up to 254 conditions per place. [2021-04-29 05:52:18,205 INFO L132 encePairwiseOnDemand]: 46/56 looper letters, 33 selfloop transitions, 209 changer transitions 17/268 dead transitions. [2021-04-29 05:52:18,205 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 268 transitions, 6497 flow [2021-04-29 05:52:18,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-04-29 05:52:18,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-04-29 05:52:18,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 284 transitions. [2021-04-29 05:52:18,213 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5634920634920635 [2021-04-29 05:52:18,213 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 284 transitions. [2021-04-29 05:52:18,213 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 284 transitions. [2021-04-29 05:52:18,214 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 05:52:18,215 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 284 transitions. [2021-04-29 05:52:18,218 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 31.555555555555557) internal successors, (284), 9 states have internal predecessors, (284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:18,220 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 56.0) internal successors, (560), 10 states have internal predecessors, (560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:18,220 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 56.0) internal successors, (560), 10 states have internal predecessors, (560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:18,221 INFO L185 Difference]: Start difference. First operand has 95 places, 234 transitions, 5336 flow. Second operand 9 states and 284 transitions. [2021-04-29 05:52:18,221 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 268 transitions, 6497 flow [2021-04-29 05:52:18,282 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 268 transitions, 5908 flow, removed 8 selfloop flow, removed 8 redundant places. [2021-04-29 05:52:18,292 INFO L241 Difference]: Finished difference. Result has 97 places, 237 transitions, 5377 flow [2021-04-29 05:52:18,292 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=4772, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=233, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=197, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=5377, PETRI_PLACES=97, PETRI_TRANSITIONS=237} [2021-04-29 05:52:18,292 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 51 predicate places. [2021-04-29 05:52:18,293 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 05:52:18,293 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 97 places, 237 transitions, 5377 flow [2021-04-29 05:52:18,293 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 97 places, 237 transitions, 5377 flow [2021-04-29 05:52:18,297 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 97 places, 237 transitions, 5377 flow [2021-04-29 05:52:18,429 INFO L129 PetriNetUnfolder]: 191/592 cut-off events. [2021-04-29 05:52:18,430 INFO L130 PetriNetUnfolder]: For 8215/8242 co-relation queries the response was YES. [2021-04-29 05:52:18,433 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5670 conditions, 592 events. 191/592 cut-off events. For 8215/8242 co-relation queries the response was YES. Maximal size of possible extension queue 103. Compared 4396 event pairs, 2 based on Foata normal form. 22/614 useless extension candidates. Maximal degree in co-relation 5588. Up to 215 conditions per place. [2021-04-29 05:52:18,440 INFO L146 LiptonReduction]: Number of co-enabled transitions 256 [2021-04-29 05:52:18,470 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 05:52:18,471 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 05:52:18,471 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 178 [2021-04-29 05:52:18,473 INFO L480 AbstractCegarLoop]: Abstraction has has 97 places, 237 transitions, 5377 flow [2021-04-29 05:52:18,473 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 26.25) internal successors, (210), 8 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:18,473 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 05:52:18,473 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 05:52:18,474 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-04-29 05:52:18,474 INFO L428 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 05:52:18,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 05:52:18,474 INFO L82 PathProgramCache]: Analyzing trace with hash 1936951438, now seen corresponding path program 19 times [2021-04-29 05:52:18,474 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 05:52:18,474 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778568063] [2021-04-29 05:52:18,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 05:52:18,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 05:52:18,502 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:18,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 05:52:18,505 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:18,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:18,510 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:18,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:18,516 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:18,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:18,524 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:18,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:18,525 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:18,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:18,533 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:18,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 05:52:18,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 05:52:18,534 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778568063] [2021-04-29 05:52:18,534 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 05:52:18,534 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-04-29 05:52:18,535 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139502656] [2021-04-29 05:52:18,535 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-04-29 05:52:18,536 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 05:52:18,536 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-04-29 05:52:18,536 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-04-29 05:52:18,537 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 56 [2021-04-29 05:52:18,537 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 237 transitions, 5377 flow. Second operand has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 7 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:18,537 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 05:52:18,537 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 56 [2021-04-29 05:52:18,537 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 05:52:18,833 INFO L129 PetriNetUnfolder]: 234/683 cut-off events. [2021-04-29 05:52:18,834 INFO L130 PetriNetUnfolder]: For 9205/9227 co-relation queries the response was YES. [2021-04-29 05:52:18,837 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7065 conditions, 683 events. 234/683 cut-off events. For 9205/9227 co-relation queries the response was YES. Maximal size of possible extension queue 117. Compared 4951 event pairs, 21 based on Foata normal form. 10/692 useless extension candidates. Maximal degree in co-relation 6976. Up to 257 conditions per place. [2021-04-29 05:52:18,842 INFO L132 encePairwiseOnDemand]: 47/56 looper letters, 75 selfloop transitions, 160 changer transitions 2/246 dead transitions. [2021-04-29 05:52:18,842 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 246 transitions, 6014 flow [2021-04-29 05:52:18,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-04-29 05:52:18,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-04-29 05:52:18,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 221 transitions. [2021-04-29 05:52:18,850 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5637755102040817 [2021-04-29 05:52:18,850 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 221 transitions. [2021-04-29 05:52:18,850 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 221 transitions. [2021-04-29 05:52:18,850 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 05:52:18,850 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 221 transitions. [2021-04-29 05:52:18,851 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 31.571428571428573) internal successors, (221), 7 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:18,852 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 56.0) internal successors, (448), 8 states have internal predecessors, (448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:18,852 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 56.0) internal successors, (448), 8 states have internal predecessors, (448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:18,852 INFO L185 Difference]: Start difference. First operand has 97 places, 237 transitions, 5377 flow. Second operand 7 states and 221 transitions. [2021-04-29 05:52:18,853 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 246 transitions, 6014 flow [2021-04-29 05:52:18,899 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 246 transitions, 5493 flow, removed 17 selfloop flow, removed 8 redundant places. [2021-04-29 05:52:18,907 INFO L241 Difference]: Finished difference. Result has 95 places, 237 transitions, 5194 flow [2021-04-29 05:52:18,908 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=4819, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=235, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=156, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=5194, PETRI_PLACES=95, PETRI_TRANSITIONS=237} [2021-04-29 05:52:18,908 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 49 predicate places. [2021-04-29 05:52:18,908 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 05:52:18,908 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 95 places, 237 transitions, 5194 flow [2021-04-29 05:52:18,909 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 95 places, 237 transitions, 5194 flow [2021-04-29 05:52:18,912 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 95 places, 237 transitions, 5194 flow [2021-04-29 05:52:19,025 INFO L129 PetriNetUnfolder]: 189/590 cut-off events. [2021-04-29 05:52:19,025 INFO L130 PetriNetUnfolder]: For 7320/7422 co-relation queries the response was YES. [2021-04-29 05:52:19,028 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5349 conditions, 590 events. 189/590 cut-off events. For 7320/7422 co-relation queries the response was YES. Maximal size of possible extension queue 106. Compared 4397 event pairs, 3 based on Foata normal form. 28/618 useless extension candidates. Maximal degree in co-relation 5266. Up to 214 conditions per place. [2021-04-29 05:52:19,035 INFO L146 LiptonReduction]: Number of co-enabled transitions 254 [2021-04-29 05:52:19,065 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 05:52:19,066 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 05:52:19,066 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 158 [2021-04-29 05:52:19,067 INFO L480 AbstractCegarLoop]: Abstraction has has 95 places, 237 transitions, 5194 flow [2021-04-29 05:52:19,067 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 7 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:19,067 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 05:52:19,067 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 05:52:19,067 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-04-29 05:52:19,068 INFO L428 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 05:52:19,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 05:52:19,068 INFO L82 PathProgramCache]: Analyzing trace with hash 2060432646, now seen corresponding path program 20 times [2021-04-29 05:52:19,068 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 05:52:19,069 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554081086] [2021-04-29 05:52:19,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 05:52:19,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 05:52:19,083 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:19,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 05:52:19,086 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:19,087 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:19,091 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:19,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 05:52:19,096 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:19,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:19,098 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:19,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:19,108 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:19,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:19,116 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:19,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:19,133 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:19,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 05:52:19,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 05:52:19,134 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554081086] [2021-04-29 05:52:19,135 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 05:52:19,135 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-04-29 05:52:19,135 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920451252] [2021-04-29 05:52:19,135 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-04-29 05:52:19,135 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 05:52:19,136 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-04-29 05:52:19,136 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-04-29 05:52:19,136 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 56 [2021-04-29 05:52:19,137 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 237 transitions, 5194 flow. Second operand has 8 states, 8 states have (on average 26.25) internal successors, (210), 8 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:19,137 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 05:52:19,137 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 56 [2021-04-29 05:52:19,137 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 05:52:19,552 INFO L129 PetriNetUnfolder]: 228/671 cut-off events. [2021-04-29 05:52:19,553 INFO L130 PetriNetUnfolder]: For 8321/8341 co-relation queries the response was YES. [2021-04-29 05:52:19,556 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6649 conditions, 671 events. 228/671 cut-off events. For 8321/8341 co-relation queries the response was YES. Maximal size of possible extension queue 115. Compared 4877 event pairs, 2 based on Foata normal form. 11/681 useless extension candidates. Maximal degree in co-relation 6567. Up to 248 conditions per place. [2021-04-29 05:52:19,560 INFO L132 encePairwiseOnDemand]: 47/56 looper letters, 33 selfloop transitions, 204 changer transitions 11/257 dead transitions. [2021-04-29 05:52:19,560 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 257 transitions, 5945 flow [2021-04-29 05:52:19,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-04-29 05:52:19,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-04-29 05:52:19,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 285 transitions. [2021-04-29 05:52:19,562 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5654761904761905 [2021-04-29 05:52:19,562 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 285 transitions. [2021-04-29 05:52:19,562 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 285 transitions. [2021-04-29 05:52:19,563 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 05:52:19,563 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 285 transitions. [2021-04-29 05:52:19,564 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 31.666666666666668) internal successors, (285), 9 states have internal predecessors, (285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:19,565 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 56.0) internal successors, (560), 10 states have internal predecessors, (560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:19,566 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 56.0) internal successors, (560), 10 states have internal predecessors, (560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:19,566 INFO L185 Difference]: Start difference. First operand has 95 places, 237 transitions, 5194 flow. Second operand 9 states and 285 transitions. [2021-04-29 05:52:19,566 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 257 transitions, 5945 flow [2021-04-29 05:52:19,609 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 257 transitions, 5636 flow, removed 0 selfloop flow, removed 5 redundant places. [2021-04-29 05:52:19,617 INFO L241 Difference]: Finished difference. Result has 98 places, 230 transitions, 5152 flow [2021-04-29 05:52:19,618 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=4856, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=235, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=202, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=5152, PETRI_PLACES=98, PETRI_TRANSITIONS=230} [2021-04-29 05:52:19,618 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 52 predicate places. [2021-04-29 05:52:19,618 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 05:52:19,619 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 98 places, 230 transitions, 5152 flow [2021-04-29 05:52:19,619 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 98 places, 230 transitions, 5152 flow [2021-04-29 05:52:19,622 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 98 places, 230 transitions, 5152 flow [2021-04-29 05:52:19,723 INFO L129 PetriNetUnfolder]: 177/568 cut-off events. [2021-04-29 05:52:19,723 INFO L130 PetriNetUnfolder]: For 8070/8184 co-relation queries the response was YES. [2021-04-29 05:52:19,726 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5183 conditions, 568 events. 177/568 cut-off events. For 8070/8184 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 4199 event pairs, 2 based on Foata normal form. 26/593 useless extension candidates. Maximal degree in co-relation 5100. Up to 207 conditions per place. [2021-04-29 05:52:19,733 INFO L146 LiptonReduction]: Number of co-enabled transitions 236 [2021-04-29 05:52:19,760 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 05:52:19,760 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 05:52:19,761 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 143 [2021-04-29 05:52:19,761 INFO L480 AbstractCegarLoop]: Abstraction has has 98 places, 230 transitions, 5152 flow [2021-04-29 05:52:19,762 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 26.25) internal successors, (210), 8 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:19,762 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 05:52:19,762 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 05:52:19,762 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-04-29 05:52:19,762 INFO L428 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 05:52:19,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 05:52:19,763 INFO L82 PathProgramCache]: Analyzing trace with hash 1767212634, now seen corresponding path program 21 times [2021-04-29 05:52:19,763 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 05:52:19,763 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787602286] [2021-04-29 05:52:19,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 05:52:19,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 05:52:19,776 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:19,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 05:52:19,780 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:19,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:19,784 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:19,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:19,790 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:19,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:19,791 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:19,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:19,799 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:19,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 05:52:19,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 05:52:19,800 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1787602286] [2021-04-29 05:52:19,800 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 05:52:19,800 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-04-29 05:52:19,800 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228152234] [2021-04-29 05:52:19,800 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-29 05:52:19,800 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 05:52:19,801 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-29 05:52:19,801 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-04-29 05:52:19,802 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 56 [2021-04-29 05:52:19,803 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 230 transitions, 5152 flow. Second operand has 6 states, 6 states have (on average 26.666666666666668) internal successors, (160), 6 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:19,803 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 05:52:19,803 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 56 [2021-04-29 05:52:19,803 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 05:52:20,094 INFO L129 PetriNetUnfolder]: 207/633 cut-off events. [2021-04-29 05:52:20,094 INFO L130 PetriNetUnfolder]: For 8432/8456 co-relation queries the response was YES. [2021-04-29 05:52:20,097 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6274 conditions, 633 events. 207/633 cut-off events. For 8432/8456 co-relation queries the response was YES. Maximal size of possible extension queue 108. Compared 4602 event pairs, 21 based on Foata normal form. 16/648 useless extension candidates. Maximal degree in co-relation 6190. Up to 330 conditions per place. [2021-04-29 05:52:20,102 INFO L132 encePairwiseOnDemand]: 47/56 looper letters, 93 selfloop transitions, 127 changer transitions 9/238 dead transitions. [2021-04-29 05:52:20,102 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 238 transitions, 5680 flow [2021-04-29 05:52:20,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-04-29 05:52:20,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-04-29 05:52:20,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 189 transitions. [2021-04-29 05:52:20,104 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5625 [2021-04-29 05:52:20,104 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 189 transitions. [2021-04-29 05:52:20,104 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 189 transitions. [2021-04-29 05:52:20,105 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 05:52:20,105 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 189 transitions. [2021-04-29 05:52:20,106 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 31.5) internal successors, (189), 6 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:20,107 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 56.0) internal successors, (392), 7 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:20,107 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 56.0) internal successors, (392), 7 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:20,107 INFO L185 Difference]: Start difference. First operand has 98 places, 230 transitions, 5152 flow. Second operand 6 states and 189 transitions. [2021-04-29 05:52:20,107 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 238 transitions, 5680 flow [2021-04-29 05:52:20,149 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 238 transitions, 5458 flow, removed 0 selfloop flow, removed 5 redundant places. [2021-04-29 05:52:20,156 INFO L241 Difference]: Finished difference. Result has 98 places, 220 transitions, 4917 flow [2021-04-29 05:52:20,157 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=4814, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=226, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=127, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=4917, PETRI_PLACES=98, PETRI_TRANSITIONS=220} [2021-04-29 05:52:20,157 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 52 predicate places. [2021-04-29 05:52:20,157 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 05:52:20,157 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 98 places, 220 transitions, 4917 flow [2021-04-29 05:52:20,157 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 98 places, 220 transitions, 4917 flow [2021-04-29 05:52:20,160 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 98 places, 220 transitions, 4917 flow [2021-04-29 05:52:20,253 INFO L129 PetriNetUnfolder]: 154/523 cut-off events. [2021-04-29 05:52:20,253 INFO L130 PetriNetUnfolder]: For 7796/7905 co-relation queries the response was YES. [2021-04-29 05:52:20,256 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4650 conditions, 523 events. 154/523 cut-off events. For 7796/7905 co-relation queries the response was YES. Maximal size of possible extension queue 90. Compared 3845 event pairs, 1 based on Foata normal form. 26/548 useless extension candidates. Maximal degree in co-relation 4568. Up to 193 conditions per place. [2021-04-29 05:52:20,261 INFO L146 LiptonReduction]: Number of co-enabled transitions 218 [2021-04-29 05:52:20,285 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 05:52:20,285 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 05:52:20,285 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 128 [2021-04-29 05:52:20,286 INFO L480 AbstractCegarLoop]: Abstraction has has 98 places, 220 transitions, 4917 flow [2021-04-29 05:52:20,286 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 26.666666666666668) internal successors, (160), 6 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:20,286 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 05:52:20,286 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 05:52:20,286 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-04-29 05:52:20,286 INFO L428 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 05:52:20,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 05:52:20,287 INFO L82 PathProgramCache]: Analyzing trace with hash 807489092, now seen corresponding path program 22 times [2021-04-29 05:52:20,287 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 05:52:20,287 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628602753] [2021-04-29 05:52:20,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 05:52:20,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 05:52:20,300 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:20,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 05:52:20,303 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:20,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:20,308 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:20,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:20,314 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:20,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:20,321 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:20,321 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:20,328 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:20,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:20,336 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:20,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 05:52:20,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 05:52:20,337 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628602753] [2021-04-29 05:52:20,337 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 05:52:20,337 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-04-29 05:52:20,337 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479143097] [2021-04-29 05:52:20,337 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-04-29 05:52:20,337 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 05:52:20,338 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-04-29 05:52:20,338 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-04-29 05:52:20,338 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 56 [2021-04-29 05:52:20,339 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 220 transitions, 4917 flow. Second operand has 8 states, 8 states have (on average 26.25) internal successors, (210), 8 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:20,339 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 05:52:20,339 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 56 [2021-04-29 05:52:20,339 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 05:52:20,643 INFO L129 PetriNetUnfolder]: 191/601 cut-off events. [2021-04-29 05:52:20,643 INFO L130 PetriNetUnfolder]: For 8224/8250 co-relation queries the response was YES. [2021-04-29 05:52:20,646 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5834 conditions, 601 events. 191/601 cut-off events. For 8224/8250 co-relation queries the response was YES. Maximal size of possible extension queue 101. Compared 4332 event pairs, 19 based on Foata normal form. 10/610 useless extension candidates. Maximal degree in co-relation 5750. Up to 232 conditions per place. [2021-04-29 05:52:20,650 INFO L132 encePairwiseOnDemand]: 47/56 looper letters, 69 selfloop transitions, 155 changer transitions 1/234 dead transitions. [2021-04-29 05:52:20,650 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 234 transitions, 5616 flow [2021-04-29 05:52:20,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-04-29 05:52:20,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-04-29 05:52:20,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 276 transitions. [2021-04-29 05:52:20,652 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5476190476190477 [2021-04-29 05:52:20,652 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 276 transitions. [2021-04-29 05:52:20,653 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 276 transitions. [2021-04-29 05:52:20,653 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 05:52:20,653 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 276 transitions. [2021-04-29 05:52:20,654 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 30.666666666666668) internal successors, (276), 9 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) [2021-04-29 05:52:20,655 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 56.0) internal successors, (560), 10 states have internal predecessors, (560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:20,655 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 56.0) internal successors, (560), 10 states have internal predecessors, (560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:20,655 INFO L185 Difference]: Start difference. First operand has 98 places, 220 transitions, 4917 flow. Second operand 9 states and 276 transitions. [2021-04-29 05:52:20,656 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 234 transitions, 5616 flow [2021-04-29 05:52:20,695 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 234 transitions, 5449 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-04-29 05:52:20,703 INFO L241 Difference]: Finished difference. Result has 103 places, 225 transitions, 5181 flow [2021-04-29 05:52:20,703 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=4760, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=220, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=150, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=5181, PETRI_PLACES=103, PETRI_TRANSITIONS=225} [2021-04-29 05:52:20,703 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 57 predicate places. [2021-04-29 05:52:20,703 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 05:52:20,704 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 103 places, 225 transitions, 5181 flow [2021-04-29 05:52:20,704 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 103 places, 225 transitions, 5181 flow [2021-04-29 05:52:20,707 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 103 places, 225 transitions, 5181 flow [2021-04-29 05:52:20,800 INFO L129 PetriNetUnfolder]: 153/523 cut-off events. [2021-04-29 05:52:20,801 INFO L130 PetriNetUnfolder]: For 7823/7906 co-relation queries the response was YES. [2021-04-29 05:52:20,803 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4805 conditions, 523 events. 153/523 cut-off events. For 7823/7906 co-relation queries the response was YES. Maximal size of possible extension queue 91. Compared 3854 event pairs, 1 based on Foata normal form. 23/545 useless extension candidates. Maximal degree in co-relation 4727. Up to 195 conditions per place. [2021-04-29 05:52:20,808 INFO L146 LiptonReduction]: Number of co-enabled transitions 218 [2021-04-29 05:52:20,833 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 05:52:20,833 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 05:52:20,833 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 130 [2021-04-29 05:52:20,834 INFO L480 AbstractCegarLoop]: Abstraction has has 103 places, 225 transitions, 5181 flow [2021-04-29 05:52:20,834 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 26.25) internal successors, (210), 8 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:20,834 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 05:52:20,834 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 05:52:20,835 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-04-29 05:52:20,835 INFO L428 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 05:52:20,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 05:52:20,835 INFO L82 PathProgramCache]: Analyzing trace with hash -1182022526, now seen corresponding path program 23 times [2021-04-29 05:52:20,835 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 05:52:20,835 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539830392] [2021-04-29 05:52:20,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 05:52:20,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 05:52:20,847 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:20,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 05:52:20,852 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:20,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:20,856 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:20,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:20,862 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:20,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:20,868 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:20,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:20,875 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:20,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 05:52:20,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 05:52:20,876 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539830392] [2021-04-29 05:52:20,876 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 05:52:20,876 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-04-29 05:52:20,876 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335625356] [2021-04-29 05:52:20,877 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-04-29 05:52:20,877 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 05:52:20,877 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-04-29 05:52:20,877 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-04-29 05:52:20,878 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 56 [2021-04-29 05:52:20,878 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 225 transitions, 5181 flow. Second operand has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 7 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:20,878 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 05:52:20,878 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 56 [2021-04-29 05:52:20,878 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 05:52:21,166 INFO L129 PetriNetUnfolder]: 172/576 cut-off events. [2021-04-29 05:52:21,166 INFO L130 PetriNetUnfolder]: For 8347/8373 co-relation queries the response was YES. [2021-04-29 05:52:21,168 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5737 conditions, 576 events. 172/576 cut-off events. For 8347/8373 co-relation queries the response was YES. Maximal size of possible extension queue 102. Compared 4264 event pairs, 20 based on Foata normal form. 25/600 useless extension candidates. Maximal degree in co-relation 5656. Up to 309 conditions per place. [2021-04-29 05:52:21,171 INFO L132 encePairwiseOnDemand]: 47/56 looper letters, 94 selfloop transitions, 131 changer transitions 10/244 dead transitions. [2021-04-29 05:52:21,171 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 244 transitions, 5950 flow [2021-04-29 05:52:21,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-04-29 05:52:21,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-04-29 05:52:21,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 253 transitions. [2021-04-29 05:52:21,173 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5647321428571429 [2021-04-29 05:52:21,173 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 253 transitions. [2021-04-29 05:52:21,173 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 253 transitions. [2021-04-29 05:52:21,173 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 05:52:21,174 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 253 transitions. [2021-04-29 05:52:21,174 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 31.625) internal successors, (253), 8 states have internal predecessors, (253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:21,175 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 56.0) internal successors, (504), 9 states have internal predecessors, (504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:21,176 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 56.0) internal successors, (504), 9 states have internal predecessors, (504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:21,176 INFO L185 Difference]: Start difference. First operand has 103 places, 225 transitions, 5181 flow. Second operand 8 states and 253 transitions. [2021-04-29 05:52:21,176 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 244 transitions, 5950 flow [2021-04-29 05:52:21,218 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 244 transitions, 5697 flow, removed 4 selfloop flow, removed 6 redundant places. [2021-04-29 05:52:21,226 INFO L241 Difference]: Finished difference. Result has 104 places, 221 transitions, 5072 flow [2021-04-29 05:52:21,227 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=4782, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=219, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=122, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=5072, PETRI_PLACES=104, PETRI_TRANSITIONS=221} [2021-04-29 05:52:21,227 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 58 predicate places. [2021-04-29 05:52:21,227 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 05:52:21,227 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 104 places, 221 transitions, 5072 flow [2021-04-29 05:52:21,227 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 104 places, 221 transitions, 5072 flow [2021-04-29 05:52:21,231 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 104 places, 221 transitions, 5072 flow [2021-04-29 05:52:21,321 INFO L129 PetriNetUnfolder]: 129/491 cut-off events. [2021-04-29 05:52:21,321 INFO L130 PetriNetUnfolder]: For 7540/7625 co-relation queries the response was YES. [2021-04-29 05:52:21,323 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4444 conditions, 491 events. 129/491 cut-off events. For 7540/7625 co-relation queries the response was YES. Maximal size of possible extension queue 91. Compared 3712 event pairs, 1 based on Foata normal form. 25/515 useless extension candidates. Maximal degree in co-relation 4365. Up to 182 conditions per place. [2021-04-29 05:52:21,328 INFO L146 LiptonReduction]: Number of co-enabled transitions 206 [2021-04-29 05:52:21,353 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 05:52:21,353 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 05:52:21,353 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 126 [2021-04-29 05:52:21,354 INFO L480 AbstractCegarLoop]: Abstraction has has 104 places, 221 transitions, 5072 flow [2021-04-29 05:52:21,354 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 7 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:21,354 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 05:52:21,354 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 05:52:21,355 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-04-29 05:52:21,355 INFO L428 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 05:52:21,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 05:52:21,355 INFO L82 PathProgramCache]: Analyzing trace with hash 1333661830, now seen corresponding path program 24 times [2021-04-29 05:52:21,355 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 05:52:21,355 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594047737] [2021-04-29 05:52:21,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 05:52:21,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 05:52:21,369 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:21,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 05:52:21,372 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:21,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:21,377 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:21,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 05:52:21,382 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:21,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:21,383 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:21,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:21,388 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:21,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:21,395 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:21,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:21,404 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:21,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 05:52:21,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 05:52:21,405 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1594047737] [2021-04-29 05:52:21,405 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 05:52:21,405 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-04-29 05:52:21,405 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926475454] [2021-04-29 05:52:21,405 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-04-29 05:52:21,406 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 05:52:21,406 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-04-29 05:52:21,406 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-04-29 05:52:21,407 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 56 [2021-04-29 05:52:21,407 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 221 transitions, 5072 flow. Second operand has 8 states, 8 states have (on average 26.25) internal successors, (210), 8 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:21,407 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 05:52:21,407 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 56 [2021-04-29 05:52:21,407 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 05:52:21,709 INFO L129 PetriNetUnfolder]: 162/560 cut-off events. [2021-04-29 05:52:21,709 INFO L130 PetriNetUnfolder]: For 8201/8227 co-relation queries the response was YES. [2021-04-29 05:52:21,711 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5533 conditions, 560 events. 162/560 cut-off events. For 8201/8227 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 4178 event pairs, 1 based on Foata normal form. 11/570 useless extension candidates. Maximal degree in co-relation 5455. Up to 211 conditions per place. [2021-04-29 05:52:21,715 INFO L132 encePairwiseOnDemand]: 47/56 looper letters, 30 selfloop transitions, 186 changer transitions 15/240 dead transitions. [2021-04-29 05:52:21,715 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 240 transitions, 5792 flow [2021-04-29 05:52:21,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-04-29 05:52:21,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-04-29 05:52:21,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 283 transitions. [2021-04-29 05:52:21,719 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5615079365079365 [2021-04-29 05:52:21,719 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 283 transitions. [2021-04-29 05:52:21,719 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 283 transitions. [2021-04-29 05:52:21,720 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 05:52:21,720 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 283 transitions. [2021-04-29 05:52:21,721 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 31.444444444444443) internal successors, (283), 9 states have internal predecessors, (283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:21,724 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 56.0) internal successors, (560), 10 states have internal predecessors, (560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:21,724 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 56.0) internal successors, (560), 10 states have internal predecessors, (560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:21,725 INFO L185 Difference]: Start difference. First operand has 104 places, 221 transitions, 5072 flow. Second operand 9 states and 283 transitions. [2021-04-29 05:52:21,725 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 240 transitions, 5792 flow [2021-04-29 05:52:21,775 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 240 transitions, 5749 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-29 05:52:21,784 INFO L241 Difference]: Finished difference. Result has 110 places, 211 transitions, 5181 flow [2021-04-29 05:52:21,785 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=4995, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=219, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=184, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=5181, PETRI_PLACES=110, PETRI_TRANSITIONS=211} [2021-04-29 05:52:21,785 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 64 predicate places. [2021-04-29 05:52:21,785 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 05:52:21,785 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 110 places, 211 transitions, 5181 flow [2021-04-29 05:52:21,786 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 110 places, 211 transitions, 5181 flow [2021-04-29 05:52:21,792 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 110 places, 211 transitions, 5181 flow [2021-04-29 05:52:21,866 INFO L129 PetriNetUnfolder]: 110/397 cut-off events. [2021-04-29 05:52:21,866 INFO L130 PetriNetUnfolder]: For 7919/7994 co-relation queries the response was YES. [2021-04-29 05:52:21,867 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3879 conditions, 397 events. 110/397 cut-off events. For 7919/7994 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 2723 event pairs, 0 based on Foata normal form. 13/409 useless extension candidates. Maximal degree in co-relation 3804. Up to 147 conditions per place. [2021-04-29 05:52:21,873 INFO L146 LiptonReduction]: Number of co-enabled transitions 176 [2021-04-29 05:52:21,899 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 05:52:21,899 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 05:52:21,899 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 114 [2021-04-29 05:52:21,900 INFO L480 AbstractCegarLoop]: Abstraction has has 110 places, 211 transitions, 5181 flow [2021-04-29 05:52:21,900 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 26.25) internal successors, (210), 8 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:21,900 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 05:52:21,900 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 05:52:21,900 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-04-29 05:52:21,902 INFO L428 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 05:52:21,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 05:52:21,902 INFO L82 PathProgramCache]: Analyzing trace with hash -993107138, now seen corresponding path program 25 times [2021-04-29 05:52:21,902 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 05:52:21,902 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498602327] [2021-04-29 05:52:21,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 05:52:21,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 05:52:21,922 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:21,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 05:52:21,925 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:21,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:21,930 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:21,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:21,936 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:21,937 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:21,943 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:21,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:21,944 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:21,945 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:21,945 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:21,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:21,952 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:21,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 05:52:21,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 05:52:21,953 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498602327] [2021-04-29 05:52:21,953 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 05:52:21,953 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-04-29 05:52:21,955 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474217216] [2021-04-29 05:52:21,955 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-04-29 05:52:21,955 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 05:52:21,958 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-04-29 05:52:21,958 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-04-29 05:52:21,959 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 56 [2021-04-29 05:52:21,959 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 211 transitions, 5181 flow. Second operand has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 7 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:21,959 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 05:52:21,959 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 56 [2021-04-29 05:52:21,959 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 05:52:22,236 INFO L129 PetriNetUnfolder]: 135/451 cut-off events. [2021-04-29 05:52:22,236 INFO L130 PetriNetUnfolder]: For 7992/8020 co-relation queries the response was YES. [2021-04-29 05:52:22,238 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4747 conditions, 451 events. 135/451 cut-off events. For 7992/8020 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 3028 event pairs, 10 based on Foata normal form. 7/457 useless extension candidates. Maximal degree in co-relation 4669. Up to 165 conditions per place. [2021-04-29 05:52:22,241 INFO L132 encePairwiseOnDemand]: 47/56 looper letters, 61 selfloop transitions, 151 changer transitions 3/224 dead transitions. [2021-04-29 05:52:22,241 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 224 transitions, 5792 flow [2021-04-29 05:52:22,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-04-29 05:52:22,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-04-29 05:52:22,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 252 transitions. [2021-04-29 05:52:22,243 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5625 [2021-04-29 05:52:22,243 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 252 transitions. [2021-04-29 05:52:22,243 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 252 transitions. [2021-04-29 05:52:22,244 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 05:52:22,244 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 252 transitions. [2021-04-29 05:52:22,245 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 31.5) internal successors, (252), 8 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:22,246 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 56.0) internal successors, (504), 9 states have internal predecessors, (504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:22,246 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 56.0) internal successors, (504), 9 states have internal predecessors, (504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:22,246 INFO L185 Difference]: Start difference. First operand has 110 places, 211 transitions, 5181 flow. Second operand 8 states and 252 transitions. [2021-04-29 05:52:22,246 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 224 transitions, 5792 flow [2021-04-29 05:52:22,293 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 224 transitions, 5703 flow, removed 0 selfloop flow, removed 3 redundant places. [2021-04-29 05:52:22,301 INFO L241 Difference]: Finished difference. Result has 114 places, 214 transitions, 5447 flow [2021-04-29 05:52:22,301 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=5093, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=211, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=147, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=5447, PETRI_PLACES=114, PETRI_TRANSITIONS=214} [2021-04-29 05:52:22,302 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 68 predicate places. [2021-04-29 05:52:22,302 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 05:52:22,302 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 114 places, 214 transitions, 5447 flow [2021-04-29 05:52:22,302 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 114 places, 214 transitions, 5447 flow [2021-04-29 05:52:22,306 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 114 places, 214 transitions, 5447 flow [2021-04-29 05:52:22,380 INFO L129 PetriNetUnfolder]: 107/396 cut-off events. [2021-04-29 05:52:22,380 INFO L130 PetriNetUnfolder]: For 8962/9006 co-relation queries the response was YES. [2021-04-29 05:52:22,381 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3990 conditions, 396 events. 107/396 cut-off events. For 8962/9006 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 2757 event pairs, 0 based on Foata normal form. 13/409 useless extension candidates. Maximal degree in co-relation 3916. Up to 145 conditions per place. [2021-04-29 05:52:22,386 INFO L146 LiptonReduction]: Number of co-enabled transitions 176 [2021-04-29 05:52:22,409 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 05:52:22,409 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 05:52:22,409 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 107 [2021-04-29 05:52:22,410 INFO L480 AbstractCegarLoop]: Abstraction has has 114 places, 214 transitions, 5447 flow [2021-04-29 05:52:22,410 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 7 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:22,410 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 05:52:22,411 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 05:52:22,411 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-04-29 05:52:22,411 INFO L428 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 05:52:22,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 05:52:22,411 INFO L82 PathProgramCache]: Analyzing trace with hash -1971213042, now seen corresponding path program 26 times [2021-04-29 05:52:22,411 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 05:52:22,412 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440666580] [2021-04-29 05:52:22,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 05:52:22,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 05:52:22,442 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:22,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 05:52:22,452 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:22,452 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:22,456 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:22,457 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:22,462 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:22,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:22,469 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:22,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:22,476 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:22,476 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:22,483 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:22,484 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:22,492 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:22,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 05:52:22,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 05:52:22,493 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440666580] [2021-04-29 05:52:22,493 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 05:52:22,493 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-04-29 05:52:22,493 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114030461] [2021-04-29 05:52:22,494 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-04-29 05:52:22,495 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 05:52:22,495 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-04-29 05:52:22,495 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-04-29 05:52:22,496 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 56 [2021-04-29 05:52:22,496 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 214 transitions, 5447 flow. Second operand has 9 states, 9 states have (on average 26.11111111111111) internal successors, (235), 9 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:22,496 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 05:52:22,496 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 56 [2021-04-29 05:52:22,496 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 05:52:22,857 INFO L129 PetriNetUnfolder]: 130/451 cut-off events. [2021-04-29 05:52:22,858 INFO L130 PetriNetUnfolder]: For 8454/8484 co-relation queries the response was YES. [2021-04-29 05:52:22,859 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4900 conditions, 451 events. 130/451 cut-off events. For 8454/8484 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 3088 event pairs, 10 based on Foata normal form. 13/463 useless extension candidates. Maximal degree in co-relation 4822. Up to 167 conditions per place. [2021-04-29 05:52:22,862 INFO L132 encePairwiseOnDemand]: 46/56 looper letters, 60 selfloop transitions, 115 changer transitions 45/229 dead transitions. [2021-04-29 05:52:22,862 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 229 transitions, 6149 flow [2021-04-29 05:52:22,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-04-29 05:52:22,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-04-29 05:52:22,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 364 transitions. [2021-04-29 05:52:22,864 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5416666666666666 [2021-04-29 05:52:22,864 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 364 transitions. [2021-04-29 05:52:22,864 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 364 transitions. [2021-04-29 05:52:22,865 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 05:52:22,865 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 364 transitions. [2021-04-29 05:52:22,866 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 30.333333333333332) internal successors, (364), 12 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:22,867 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 56.0) internal successors, (728), 13 states have internal predecessors, (728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:22,868 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 56.0) internal successors, (728), 13 states have internal predecessors, (728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:22,868 INFO L185 Difference]: Start difference. First operand has 114 places, 214 transitions, 5447 flow. Second operand 12 states and 364 transitions. [2021-04-29 05:52:22,868 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 229 transitions, 6149 flow [2021-04-29 05:52:22,916 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 229 transitions, 5988 flow, removed 2 selfloop flow, removed 4 redundant places. [2021-04-29 05:52:22,922 INFO L241 Difference]: Finished difference. Result has 123 places, 178 transitions, 4470 flow [2021-04-29 05:52:22,922 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=5276, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=213, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=115, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=4470, PETRI_PLACES=123, PETRI_TRANSITIONS=178} [2021-04-29 05:52:22,922 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 77 predicate places. [2021-04-29 05:52:22,923 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 05:52:22,923 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 123 places, 178 transitions, 4470 flow [2021-04-29 05:52:22,923 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 123 places, 178 transitions, 4470 flow [2021-04-29 05:52:22,925 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 118 places, 178 transitions, 4470 flow [2021-04-29 05:52:22,964 INFO L129 PetriNetUnfolder]: 82/334 cut-off events. [2021-04-29 05:52:22,964 INFO L130 PetriNetUnfolder]: For 6810/6856 co-relation queries the response was YES. [2021-04-29 05:52:22,965 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3386 conditions, 334 events. 82/334 cut-off events. For 6810/6856 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 2264 event pairs, 0 based on Foata normal form. 11/345 useless extension candidates. Maximal degree in co-relation 3308. Up to 122 conditions per place. [2021-04-29 05:52:22,968 INFO L146 LiptonReduction]: Number of co-enabled transitions 174 [2021-04-29 05:52:22,980 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 05:52:22,980 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 05:52:22,981 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 58 [2021-04-29 05:52:22,981 INFO L480 AbstractCegarLoop]: Abstraction has has 118 places, 178 transitions, 4470 flow [2021-04-29 05:52:22,981 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 26.11111111111111) internal successors, (235), 9 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:22,981 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 05:52:22,982 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 05:52:22,982 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-04-29 05:52:22,982 INFO L428 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 05:52:22,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 05:52:22,982 INFO L82 PathProgramCache]: Analyzing trace with hash -1173264386, now seen corresponding path program 27 times [2021-04-29 05:52:22,982 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 05:52:22,983 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834263345] [2021-04-29 05:52:22,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 05:52:22,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 05:52:22,998 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:22,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 05:52:23,002 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:23,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:23,006 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:23,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:23,012 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:23,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:23,018 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:23,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:23,024 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:23,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:23,032 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:23,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:23,041 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:23,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 05:52:23,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 05:52:23,042 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834263345] [2021-04-29 05:52:23,042 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 05:52:23,042 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-04-29 05:52:23,042 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729392596] [2021-04-29 05:52:23,042 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-04-29 05:52:23,042 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 05:52:23,043 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-04-29 05:52:23,043 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-04-29 05:52:23,043 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 56 [2021-04-29 05:52:23,044 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 178 transitions, 4470 flow. Second operand has 9 states, 9 states have (on average 26.11111111111111) internal successors, (235), 9 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:23,044 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 05:52:23,044 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 56 [2021-04-29 05:52:23,044 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 05:52:23,368 INFO L129 PetriNetUnfolder]: 106/391 cut-off events. [2021-04-29 05:52:23,369 INFO L130 PetriNetUnfolder]: For 7612/7642 co-relation queries the response was YES. [2021-04-29 05:52:23,370 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4320 conditions, 391 events. 106/391 cut-off events. For 7612/7642 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 2608 event pairs, 10 based on Foata normal form. 10/400 useless extension candidates. Maximal degree in co-relation 4240. Up to 144 conditions per place. [2021-04-29 05:52:23,371 INFO L132 encePairwiseOnDemand]: 47/56 looper letters, 63 selfloop transitions, 110 changer transitions 13/195 dead transitions. [2021-04-29 05:52:23,371 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 195 transitions, 5151 flow [2021-04-29 05:52:23,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-04-29 05:52:23,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-04-29 05:52:23,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 363 transitions. [2021-04-29 05:52:23,373 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5401785714285714 [2021-04-29 05:52:23,373 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 363 transitions. [2021-04-29 05:52:23,374 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 363 transitions. [2021-04-29 05:52:23,374 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 05:52:23,374 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 363 transitions. [2021-04-29 05:52:23,375 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 30.25) internal successors, (363), 12 states have internal predecessors, (363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:23,376 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 56.0) internal successors, (728), 13 states have internal predecessors, (728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:23,377 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 56.0) internal successors, (728), 13 states have internal predecessors, (728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:23,377 INFO L185 Difference]: Start difference. First operand has 118 places, 178 transitions, 4470 flow. Second operand 12 states and 363 transitions. [2021-04-29 05:52:23,377 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 129 places, 195 transitions, 5151 flow [2021-04-29 05:52:23,418 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 195 transitions, 4791 flow, removed 22 selfloop flow, removed 10 redundant places. [2021-04-29 05:52:23,424 INFO L241 Difference]: Finished difference. Result has 119 places, 172 transitions, 4139 flow [2021-04-29 05:52:23,425 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=4153, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=178, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=106, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=4139, PETRI_PLACES=119, PETRI_TRANSITIONS=172} [2021-04-29 05:52:23,425 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 73 predicate places. [2021-04-29 05:52:23,425 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 05:52:23,425 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 119 places, 172 transitions, 4139 flow [2021-04-29 05:52:23,426 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 119 places, 172 transitions, 4139 flow [2021-04-29 05:52:23,428 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 119 places, 172 transitions, 4139 flow [2021-04-29 05:52:23,472 INFO L129 PetriNetUnfolder]: 75/329 cut-off events. [2021-04-29 05:52:23,472 INFO L130 PetriNetUnfolder]: For 4947/4960 co-relation queries the response was YES. [2021-04-29 05:52:23,473 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3136 conditions, 329 events. 75/329 cut-off events. For 4947/4960 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 2239 event pairs, 0 based on Foata normal form. 7/336 useless extension candidates. Maximal degree in co-relation 3057. Up to 118 conditions per place. [2021-04-29 05:52:23,476 INFO L146 LiptonReduction]: Number of co-enabled transitions 166 [2021-04-29 05:52:23,488 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 05:52:23,489 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 05:52:23,489 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 64 [2021-04-29 05:52:23,492 INFO L480 AbstractCegarLoop]: Abstraction has has 119 places, 172 transitions, 4139 flow [2021-04-29 05:52:23,492 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 26.11111111111111) internal successors, (235), 9 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:23,492 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 05:52:23,492 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 05:52:23,492 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-04-29 05:52:23,493 INFO L428 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 05:52:23,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 05:52:23,493 INFO L82 PathProgramCache]: Analyzing trace with hash -658226636, now seen corresponding path program 28 times [2021-04-29 05:52:23,493 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 05:52:23,493 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419132652] [2021-04-29 05:52:23,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 05:52:23,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 05:52:23,508 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:23,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 05:52:23,512 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:23,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:23,516 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:23,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:23,522 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:23,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:23,530 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:23,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:23,538 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:23,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:23,546 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:23,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:23,554 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:23,555 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 05:52:23,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 05:52:23,555 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419132652] [2021-04-29 05:52:23,556 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 05:52:23,556 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-04-29 05:52:23,556 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307416929] [2021-04-29 05:52:23,556 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-04-29 05:52:23,556 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 05:52:23,557 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-04-29 05:52:23,557 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-04-29 05:52:23,557 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 56 [2021-04-29 05:52:23,558 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 172 transitions, 4139 flow. Second operand has 9 states, 9 states have (on average 26.11111111111111) internal successors, (235), 9 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:23,558 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 05:52:23,558 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 56 [2021-04-29 05:52:23,558 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 05:52:23,854 INFO L129 PetriNetUnfolder]: 95/376 cut-off events. [2021-04-29 05:52:23,854 INFO L130 PetriNetUnfolder]: For 6233/6263 co-relation queries the response was YES. [2021-04-29 05:52:23,855 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3922 conditions, 376 events. 95/376 cut-off events. For 6233/6263 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 2535 event pairs, 10 based on Foata normal form. 13/388 useless extension candidates. Maximal degree in co-relation 3844. Up to 135 conditions per place. [2021-04-29 05:52:23,857 INFO L132 encePairwiseOnDemand]: 47/56 looper letters, 62 selfloop transitions, 96 changer transitions 18/185 dead transitions. [2021-04-29 05:52:23,857 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 185 transitions, 4656 flow [2021-04-29 05:52:23,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-04-29 05:52:23,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-04-29 05:52:23,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 363 transitions. [2021-04-29 05:52:23,859 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5401785714285714 [2021-04-29 05:52:23,859 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 363 transitions. [2021-04-29 05:52:23,859 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 363 transitions. [2021-04-29 05:52:23,860 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 05:52:23,860 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 363 transitions. [2021-04-29 05:52:23,861 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 30.25) internal successors, (363), 12 states have internal predecessors, (363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:23,862 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 56.0) internal successors, (728), 13 states have internal predecessors, (728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:23,862 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 56.0) internal successors, (728), 13 states have internal predecessors, (728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:23,862 INFO L185 Difference]: Start difference. First operand has 119 places, 172 transitions, 4139 flow. Second operand 12 states and 363 transitions. [2021-04-29 05:52:23,863 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 185 transitions, 4656 flow [2021-04-29 05:52:23,899 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 185 transitions, 4512 flow, removed 1 selfloop flow, removed 4 redundant places. [2021-04-29 05:52:23,905 INFO L241 Difference]: Finished difference. Result has 126 places, 158 transitions, 3741 flow [2021-04-29 05:52:23,905 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=3958, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=170, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=94, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=3741, PETRI_PLACES=126, PETRI_TRANSITIONS=158} [2021-04-29 05:52:23,905 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 80 predicate places. [2021-04-29 05:52:23,906 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 05:52:23,906 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 126 places, 158 transitions, 3741 flow [2021-04-29 05:52:23,906 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 126 places, 158 transitions, 3741 flow [2021-04-29 05:52:23,909 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 126 places, 158 transitions, 3741 flow [2021-04-29 05:52:23,955 INFO L129 PetriNetUnfolder]: 63/282 cut-off events. [2021-04-29 05:52:23,955 INFO L130 PetriNetUnfolder]: For 4211/4213 co-relation queries the response was YES. [2021-04-29 05:52:23,956 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2599 conditions, 282 events. 63/282 cut-off events. For 4211/4213 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 1858 event pairs, 0 based on Foata normal form. 2/284 useless extension candidates. Maximal degree in co-relation 2525. Up to 101 conditions per place. [2021-04-29 05:52:23,960 INFO L146 LiptonReduction]: Number of co-enabled transitions 146 [2021-04-29 05:52:23,994 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 05:52:23,994 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 05:52:23,994 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 88 [2021-04-29 05:52:23,995 INFO L480 AbstractCegarLoop]: Abstraction has has 126 places, 158 transitions, 3741 flow [2021-04-29 05:52:23,995 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 26.11111111111111) internal successors, (235), 9 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:23,995 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 05:52:23,995 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 05:52:23,996 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-04-29 05:52:23,996 INFO L428 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 05:52:23,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 05:52:23,996 INFO L82 PathProgramCache]: Analyzing trace with hash -1343392178, now seen corresponding path program 29 times [2021-04-29 05:52:23,996 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 05:52:23,997 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341310988] [2021-04-29 05:52:23,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 05:52:24,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 05:52:24,008 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:24,009 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 05:52:24,012 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:24,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:24,016 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:24,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:24,022 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:24,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:24,028 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:24,029 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:24,035 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:24,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:24,043 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:24,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 05:52:24,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 05:52:24,044 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341310988] [2021-04-29 05:52:24,044 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 05:52:24,044 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-04-29 05:52:24,044 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467266489] [2021-04-29 05:52:24,045 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-04-29 05:52:24,045 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 05:52:24,045 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-04-29 05:52:24,045 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-04-29 05:52:24,046 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 56 [2021-04-29 05:52:24,046 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 158 transitions, 3741 flow. Second operand has 8 states, 8 states have (on average 26.25) internal successors, (210), 8 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:24,046 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 05:52:24,047 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 56 [2021-04-29 05:52:24,047 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 05:52:24,248 INFO L129 PetriNetUnfolder]: 68/298 cut-off events. [2021-04-29 05:52:24,249 INFO L130 PetriNetUnfolder]: For 5180/5184 co-relation queries the response was YES. [2021-04-29 05:52:24,250 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2972 conditions, 298 events. 68/298 cut-off events. For 5180/5184 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 1924 event pairs, 10 based on Foata normal form. 16/314 useless extension candidates. Maximal degree in co-relation 2891. Up to 122 conditions per place. [2021-04-29 05:52:24,251 INFO L132 encePairwiseOnDemand]: 47/56 looper letters, 56 selfloop transitions, 73 changer transitions 10/148 dead transitions. [2021-04-29 05:52:24,251 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 148 transitions, 3655 flow [2021-04-29 05:52:24,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-04-29 05:52:24,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-04-29 05:52:24,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 272 transitions. [2021-04-29 05:52:24,252 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5396825396825397 [2021-04-29 05:52:24,252 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 272 transitions. [2021-04-29 05:52:24,253 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 272 transitions. [2021-04-29 05:52:24,253 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 05:52:24,253 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 272 transitions. [2021-04-29 05:52:24,254 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 30.22222222222222) internal successors, (272), 9 states have internal predecessors, (272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:24,255 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 56.0) internal successors, (560), 10 states have internal predecessors, (560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:24,255 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 56.0) internal successors, (560), 10 states have internal predecessors, (560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:24,255 INFO L185 Difference]: Start difference. First operand has 126 places, 158 transitions, 3741 flow. Second operand 9 states and 272 transitions. [2021-04-29 05:52:24,255 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 148 transitions, 3655 flow [2021-04-29 05:52:24,283 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 148 transitions, 3474 flow, removed 5 selfloop flow, removed 9 redundant places. [2021-04-29 05:52:24,286 INFO L241 Difference]: Finished difference. Result has 125 places, 135 transitions, 3019 flow [2021-04-29 05:52:24,287 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=3098, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=141, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=71, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=3019, PETRI_PLACES=125, PETRI_TRANSITIONS=135} [2021-04-29 05:52:24,287 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 79 predicate places. [2021-04-29 05:52:24,287 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 05:52:24,287 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 125 places, 135 transitions, 3019 flow [2021-04-29 05:52:24,287 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 125 places, 135 transitions, 3019 flow [2021-04-29 05:52:24,289 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 125 places, 135 transitions, 3019 flow [2021-04-29 05:52:24,319 INFO L129 PetriNetUnfolder]: 45/234 cut-off events. [2021-04-29 05:52:24,320 INFO L130 PetriNetUnfolder]: For 3635/3658 co-relation queries the response was YES. [2021-04-29 05:52:24,321 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2101 conditions, 234 events. 45/234 cut-off events. For 3635/3658 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 1487 event pairs, 0 based on Foata normal form. 6/240 useless extension candidates. Maximal degree in co-relation 2027. Up to 85 conditions per place. [2021-04-29 05:52:24,323 INFO L146 LiptonReduction]: Number of co-enabled transitions 142 [2021-04-29 05:52:24,334 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 05:52:24,334 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 05:52:24,334 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 47 [2021-04-29 05:52:24,335 INFO L480 AbstractCegarLoop]: Abstraction has has 125 places, 135 transitions, 3019 flow [2021-04-29 05:52:24,335 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 26.25) internal successors, (210), 8 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:24,335 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 05:52:24,335 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 05:52:24,335 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-04-29 05:52:24,335 INFO L428 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 05:52:24,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 05:52:24,336 INFO L82 PathProgramCache]: Analyzing trace with hash 366037416, now seen corresponding path program 30 times [2021-04-29 05:52:24,336 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 05:52:24,336 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290516107] [2021-04-29 05:52:24,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 05:52:24,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 05:52:24,354 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:24,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 05:52:24,358 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:24,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:24,363 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:24,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 05:52:24,368 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:24,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:24,369 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:24,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 05:52:24,370 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:24,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:24,371 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:24,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:24,377 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:24,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 05:52:24,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 05:52:24,378 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290516107] [2021-04-29 05:52:24,378 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 05:52:24,378 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-04-29 05:52:24,378 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102534708] [2021-04-29 05:52:24,378 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-29 05:52:24,379 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 05:52:24,379 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-29 05:52:24,379 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-04-29 05:52:24,380 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 56 [2021-04-29 05:52:24,380 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 135 transitions, 3019 flow. Second operand has 6 states, 6 states have (on average 26.666666666666668) internal successors, (160), 6 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:24,380 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 05:52:24,380 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 56 [2021-04-29 05:52:24,380 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 05:52:24,505 INFO L129 PetriNetUnfolder]: 50/230 cut-off events. [2021-04-29 05:52:24,505 INFO L130 PetriNetUnfolder]: For 3955/3959 co-relation queries the response was YES. [2021-04-29 05:52:24,506 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2414 conditions, 230 events. 50/230 cut-off events. For 3955/3959 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 1387 event pairs, 4 based on Foata normal form. 15/245 useless extension candidates. Maximal degree in co-relation 2351. Up to 86 conditions per place. [2021-04-29 05:52:24,507 INFO L132 encePairwiseOnDemand]: 47/56 looper letters, 39 selfloop transitions, 65 changer transitions 9/122 dead transitions. [2021-04-29 05:52:24,507 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 122 transitions, 2995 flow [2021-04-29 05:52:24,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-04-29 05:52:24,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-04-29 05:52:24,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 186 transitions. [2021-04-29 05:52:24,509 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5535714285714286 [2021-04-29 05:52:24,509 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 186 transitions. [2021-04-29 05:52:24,509 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 186 transitions. [2021-04-29 05:52:24,509 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 05:52:24,509 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 186 transitions. [2021-04-29 05:52:24,510 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 31.0) internal successors, (186), 6 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:24,511 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 56.0) internal successors, (392), 7 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:24,511 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 56.0) internal successors, (392), 7 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:24,511 INFO L185 Difference]: Start difference. First operand has 125 places, 135 transitions, 3019 flow. Second operand 6 states and 186 transitions. [2021-04-29 05:52:24,511 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 122 transitions, 2995 flow [2021-04-29 05:52:24,534 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 122 transitions, 2818 flow, removed 1 selfloop flow, removed 17 redundant places. [2021-04-29 05:52:24,537 INFO L241 Difference]: Finished difference. Result has 114 places, 111 transitions, 2605 flow [2021-04-29 05:52:24,538 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=2505, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=116, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=63, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2605, PETRI_PLACES=114, PETRI_TRANSITIONS=111} [2021-04-29 05:52:24,538 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 68 predicate places. [2021-04-29 05:52:24,538 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 05:52:24,538 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 114 places, 111 transitions, 2605 flow [2021-04-29 05:52:24,539 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 114 places, 111 transitions, 2605 flow [2021-04-29 05:52:24,541 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 114 places, 111 transitions, 2605 flow [2021-04-29 05:52:24,566 INFO L129 PetriNetUnfolder]: 28/174 cut-off events. [2021-04-29 05:52:24,567 INFO L130 PetriNetUnfolder]: For 2532/2538 co-relation queries the response was YES. [2021-04-29 05:52:24,567 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1710 conditions, 174 events. 28/174 cut-off events. For 2532/2538 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1016 event pairs, 0 based on Foata normal form. 4/178 useless extension candidates. Maximal degree in co-relation 1643. Up to 57 conditions per place. [2021-04-29 05:52:24,569 INFO L146 LiptonReduction]: Number of co-enabled transitions 104 [2021-04-29 05:52:24,578 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 05:52:24,578 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 05:52:24,578 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 40 [2021-04-29 05:52:24,579 INFO L480 AbstractCegarLoop]: Abstraction has has 114 places, 111 transitions, 2605 flow [2021-04-29 05:52:24,579 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 26.666666666666668) internal successors, (160), 6 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:24,579 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 05:52:24,579 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 05:52:24,579 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-04-29 05:52:24,579 INFO L428 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 05:52:24,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 05:52:24,580 INFO L82 PathProgramCache]: Analyzing trace with hash 1115143222, now seen corresponding path program 31 times [2021-04-29 05:52:24,580 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 05:52:24,580 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743817904] [2021-04-29 05:52:24,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 05:52:24,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 05:52:24,593 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:24,594 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 05:52:24,597 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:24,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:24,601 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:24,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:24,607 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:24,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:24,613 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:24,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:24,620 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:24,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 05:52:24,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 05:52:24,621 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743817904] [2021-04-29 05:52:24,621 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 05:52:24,621 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-04-29 05:52:24,621 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889379651] [2021-04-29 05:52:24,622 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-04-29 05:52:24,622 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 05:52:24,622 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-04-29 05:52:24,622 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-04-29 05:52:24,623 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 56 [2021-04-29 05:52:24,623 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 111 transitions, 2605 flow. Second operand has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 7 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:24,623 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 05:52:24,623 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 56 [2021-04-29 05:52:24,623 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 05:52:24,772 INFO L129 PetriNetUnfolder]: 24/135 cut-off events. [2021-04-29 05:52:24,772 INFO L130 PetriNetUnfolder]: For 3767/3769 co-relation queries the response was YES. [2021-04-29 05:52:24,773 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1633 conditions, 135 events. 24/135 cut-off events. For 3767/3769 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 689 event pairs, 3 based on Foata normal form. 14/149 useless extension candidates. Maximal degree in co-relation 1586. Up to 46 conditions per place. [2021-04-29 05:52:24,773 INFO L132 encePairwiseOnDemand]: 48/56 looper letters, 26 selfloop transitions, 24 changer transitions 26/85 dead transitions. [2021-04-29 05:52:24,774 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 85 transitions, 2157 flow [2021-04-29 05:52:24,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-04-29 05:52:24,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-04-29 05:52:24,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 241 transitions. [2021-04-29 05:52:24,775 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5379464285714286 [2021-04-29 05:52:24,775 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 241 transitions. [2021-04-29 05:52:24,775 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 241 transitions. [2021-04-29 05:52:24,776 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 05:52:24,776 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 241 transitions. [2021-04-29 05:52:24,776 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 30.125) internal successors, (241), 8 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:24,777 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 56.0) internal successors, (504), 9 states have internal predecessors, (504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:24,777 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 56.0) internal successors, (504), 9 states have internal predecessors, (504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:24,778 INFO L185 Difference]: Start difference. First operand has 114 places, 111 transitions, 2605 flow. Second operand 8 states and 241 transitions. [2021-04-29 05:52:24,778 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 85 transitions, 2157 flow [2021-04-29 05:52:24,796 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 85 transitions, 1882 flow, removed 6 selfloop flow, removed 16 redundant places. [2021-04-29 05:52:24,799 INFO L241 Difference]: Finished difference. Result has 103 places, 58 transitions, 1063 flow [2021-04-29 05:52:24,799 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=1690, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1063, PETRI_PLACES=103, PETRI_TRANSITIONS=58} [2021-04-29 05:52:24,799 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 57 predicate places. [2021-04-29 05:52:24,800 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 05:52:24,800 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 103 places, 58 transitions, 1063 flow [2021-04-29 05:52:24,800 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 103 places, 58 transitions, 1063 flow [2021-04-29 05:52:24,801 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 95 places, 58 transitions, 1063 flow [2021-04-29 05:52:24,810 INFO L129 PetriNetUnfolder]: 10/72 cut-off events. [2021-04-29 05:52:24,811 INFO L130 PetriNetUnfolder]: For 867/868 co-relation queries the response was YES. [2021-04-29 05:52:24,811 INFO L84 FinitePrefix]: Finished finitePrefix Result has 597 conditions, 72 events. 10/72 cut-off events. For 867/868 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 228 event pairs, 0 based on Foata normal form. 1/73 useless extension candidates. Maximal degree in co-relation 433. Up to 24 conditions per place. [2021-04-29 05:52:24,812 INFO L146 LiptonReduction]: Number of co-enabled transitions 10 [2021-04-29 05:52:24,815 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 05:52:24,815 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 05:52:24,815 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 15 [2021-04-29 05:52:24,816 INFO L480 AbstractCegarLoop]: Abstraction has has 95 places, 58 transitions, 1063 flow [2021-04-29 05:52:24,816 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 7 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:24,816 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 05:52:24,816 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 05:52:24,816 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-04-29 05:52:24,816 INFO L428 AbstractCegarLoop]: === Iteration 32 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 05:52:24,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 05:52:24,817 INFO L82 PathProgramCache]: Analyzing trace with hash 837069826, now seen corresponding path program 32 times [2021-04-29 05:52:24,817 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 05:52:24,817 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636961587] [2021-04-29 05:52:24,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 05:52:24,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 05:52:24,831 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:24,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 05:52:24,835 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:24,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:24,840 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:24,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 05:52:24,845 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:24,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:24,846 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:24,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:24,851 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:24,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:24,858 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:24,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:24,866 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:24,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 05:52:24,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 05:52:24,868 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636961587] [2021-04-29 05:52:24,868 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 05:52:24,868 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-04-29 05:52:24,869 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942505249] [2021-04-29 05:52:24,869 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-04-29 05:52:24,869 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 05:52:24,869 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-04-29 05:52:24,870 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-04-29 05:52:24,870 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 56 [2021-04-29 05:52:24,871 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 58 transitions, 1063 flow. Second operand has 8 states, 8 states have (on average 26.25) internal successors, (210), 8 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:24,871 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 05:52:24,871 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 56 [2021-04-29 05:52:24,871 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 05:52:24,986 INFO L129 PetriNetUnfolder]: 11/67 cut-off events. [2021-04-29 05:52:24,986 INFO L130 PetriNetUnfolder]: For 1033/1035 co-relation queries the response was YES. [2021-04-29 05:52:24,987 INFO L84 FinitePrefix]: Finished finitePrefix Result has 655 conditions, 67 events. 11/67 cut-off events. For 1033/1035 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 208 event pairs, 0 based on Foata normal form. 5/72 useless extension candidates. Maximal degree in co-relation 470. Up to 23 conditions per place. [2021-04-29 05:52:24,987 INFO L132 encePairwiseOnDemand]: 47/56 looper letters, 5 selfloop transitions, 22 changer transitions 19/55 dead transitions. [2021-04-29 05:52:24,987 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 55 transitions, 1094 flow [2021-04-29 05:52:24,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-04-29 05:52:24,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-04-29 05:52:24,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 258 transitions. [2021-04-29 05:52:24,989 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5119047619047619 [2021-04-29 05:52:24,989 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 258 transitions. [2021-04-29 05:52:24,989 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 258 transitions. [2021-04-29 05:52:24,989 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 05:52:24,989 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 258 transitions. [2021-04-29 05:52:24,990 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 28.666666666666668) internal successors, (258), 9 states have internal predecessors, (258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:24,991 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 56.0) internal successors, (560), 10 states have internal predecessors, (560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:24,991 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 56.0) internal successors, (560), 10 states have internal predecessors, (560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:24,991 INFO L185 Difference]: Start difference. First operand has 95 places, 58 transitions, 1063 flow. Second operand 9 states and 258 transitions. [2021-04-29 05:52:24,991 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 55 transitions, 1094 flow [2021-04-29 05:52:24,998 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 55 transitions, 724 flow, removed 4 selfloop flow, removed 35 redundant places. [2021-04-29 05:52:24,999 INFO L241 Difference]: Finished difference. Result has 68 places, 35 transitions, 410 flow [2021-04-29 05:52:24,999 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=602, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=410, PETRI_PLACES=68, PETRI_TRANSITIONS=35} [2021-04-29 05:52:24,999 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 22 predicate places. [2021-04-29 05:52:24,999 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 05:52:25,000 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 68 places, 35 transitions, 410 flow [2021-04-29 05:52:25,000 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 68 places, 35 transitions, 410 flow [2021-04-29 05:52:25,000 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 68 places, 35 transitions, 410 flow [2021-04-29 05:52:25,005 INFO L129 PetriNetUnfolder]: 5/39 cut-off events. [2021-04-29 05:52:25,005 INFO L130 PetriNetUnfolder]: For 252/252 co-relation queries the response was YES. [2021-04-29 05:52:25,005 INFO L84 FinitePrefix]: Finished finitePrefix Result has 239 conditions, 39 events. 5/39 cut-off events. For 252/252 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 63 event pairs, 0 based on Foata normal form. 0/39 useless extension candidates. Maximal degree in co-relation 178. Up to 11 conditions per place. [2021-04-29 05:52:25,006 INFO L146 LiptonReduction]: Number of co-enabled transitions 4 [2021-04-29 05:52:25,007 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 05:52:25,007 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 05:52:25,007 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 8 [2021-04-29 05:52:25,008 INFO L480 AbstractCegarLoop]: Abstraction has has 68 places, 35 transitions, 410 flow [2021-04-29 05:52:25,008 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 26.25) internal successors, (210), 8 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:25,008 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 05:52:25,008 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 05:52:25,008 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-04-29 05:52:25,009 INFO L428 AbstractCegarLoop]: === Iteration 33 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 05:52:25,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 05:52:25,009 INFO L82 PathProgramCache]: Analyzing trace with hash -394504036, now seen corresponding path program 33 times [2021-04-29 05:52:25,009 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 05:52:25,009 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900147161] [2021-04-29 05:52:25,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 05:52:25,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 05:52:25,022 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:25,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 05:52:25,026 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:25,026 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:25,031 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:25,031 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:25,036 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:25,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:25,043 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:25,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:25,044 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:25,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:25,045 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:25,045 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:25,051 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:25,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 05:52:25,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 05:52:25,052 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900147161] [2021-04-29 05:52:25,052 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 05:52:25,052 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-04-29 05:52:25,053 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634418912] [2021-04-29 05:52:25,053 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-04-29 05:52:25,053 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 05:52:25,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-04-29 05:52:25,053 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-04-29 05:52:25,054 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 56 [2021-04-29 05:52:25,054 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 35 transitions, 410 flow. Second operand has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 7 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:25,054 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 05:52:25,054 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 56 [2021-04-29 05:52:25,055 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 05:52:25,130 INFO L129 PetriNetUnfolder]: 5/40 cut-off events. [2021-04-29 05:52:25,130 INFO L130 PetriNetUnfolder]: For 299/301 co-relation queries the response was YES. [2021-04-29 05:52:25,130 INFO L84 FinitePrefix]: Finished finitePrefix Result has 278 conditions, 40 events. 5/40 cut-off events. For 299/301 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 65 event pairs, 0 based on Foata normal form. 3/43 useless extension candidates. Maximal degree in co-relation 200. Up to 11 conditions per place. [2021-04-29 05:52:25,131 INFO L132 encePairwiseOnDemand]: 47/56 looper letters, 3 selfloop transitions, 20 changer transitions 4/36 dead transitions. [2021-04-29 05:52:25,131 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 36 transitions, 468 flow [2021-04-29 05:52:25,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-04-29 05:52:25,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-04-29 05:52:25,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 223 transitions. [2021-04-29 05:52:25,132 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.49776785714285715 [2021-04-29 05:52:25,132 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 223 transitions. [2021-04-29 05:52:25,132 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 223 transitions. [2021-04-29 05:52:25,133 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 05:52:25,133 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 223 transitions. [2021-04-29 05:52:25,133 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 27.875) internal successors, (223), 8 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:25,134 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 56.0) internal successors, (504), 9 states have internal predecessors, (504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:25,134 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 56.0) internal successors, (504), 9 states have internal predecessors, (504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:25,135 INFO L185 Difference]: Start difference. First operand has 68 places, 35 transitions, 410 flow. Second operand 8 states and 223 transitions. [2021-04-29 05:52:25,135 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 36 transitions, 468 flow [2021-04-29 05:52:25,137 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 36 transitions, 287 flow, removed 0 selfloop flow, removed 24 redundant places. [2021-04-29 05:52:25,137 INFO L241 Difference]: Finished difference. Result has 51 places, 31 transitions, 230 flow [2021-04-29 05:52:25,137 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=213, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=230, PETRI_PLACES=51, PETRI_TRANSITIONS=31} [2021-04-29 05:52:25,138 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, 5 predicate places. [2021-04-29 05:52:25,138 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 05:52:25,138 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 51 places, 31 transitions, 230 flow [2021-04-29 05:52:25,138 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 51 places, 31 transitions, 230 flow [2021-04-29 05:52:25,139 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 50 places, 31 transitions, 230 flow [2021-04-29 05:52:25,141 INFO L129 PetriNetUnfolder]: 3/34 cut-off events. [2021-04-29 05:52:25,141 INFO L130 PetriNetUnfolder]: For 61/61 co-relation queries the response was YES. [2021-04-29 05:52:25,142 INFO L84 FinitePrefix]: Finished finitePrefix Result has 134 conditions, 34 events. 3/34 cut-off events. For 61/61 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 40 event pairs, 0 based on Foata normal form. 0/34 useless extension candidates. Maximal degree in co-relation 99. Up to 8 conditions per place. [2021-04-29 05:52:25,142 INFO L146 LiptonReduction]: Number of co-enabled transitions 2 [2021-04-29 05:52:25,143 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 05:52:25,143 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 05:52:25,143 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 5 [2021-04-29 05:52:25,144 INFO L480 AbstractCegarLoop]: Abstraction has has 50 places, 31 transitions, 230 flow [2021-04-29 05:52:25,144 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 26.428571428571427) internal successors, (185), 7 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:25,144 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 05:52:25,144 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 05:52:25,145 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-04-29 05:52:25,145 INFO L428 AbstractCegarLoop]: === Iteration 34 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 05:52:25,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 05:52:25,145 INFO L82 PathProgramCache]: Analyzing trace with hash 1879901246, now seen corresponding path program 34 times [2021-04-29 05:52:25,145 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 05:52:25,145 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148321595] [2021-04-29 05:52:25,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 05:52:25,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 05:52:25,159 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:25,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 05:52:25,162 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:25,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:25,167 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:25,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:25,172 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:25,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:25,179 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:25,179 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:25,187 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:25,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:25,195 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:25,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 05:52:25,204 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 05:52:25,204 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 05:52:25,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 05:52:25,205 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148321595] [2021-04-29 05:52:25,205 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 05:52:25,205 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-04-29 05:52:25,205 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514362873] [2021-04-29 05:52:25,205 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-04-29 05:52:25,205 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 05:52:25,206 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-04-29 05:52:25,206 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-04-29 05:52:25,207 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 56 [2021-04-29 05:52:25,207 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 31 transitions, 230 flow. Second operand has 9 states, 9 states have (on average 26.11111111111111) internal successors, (235), 9 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:25,207 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 05:52:25,207 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 56 [2021-04-29 05:52:25,207 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 05:52:25,310 INFO L129 PetriNetUnfolder]: 2/25 cut-off events. [2021-04-29 05:52:25,310 INFO L130 PetriNetUnfolder]: For 80/82 co-relation queries the response was YES. [2021-04-29 05:52:25,311 INFO L84 FinitePrefix]: Finished finitePrefix Result has 138 conditions, 25 events. 2/25 cut-off events. For 80/82 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 35 event pairs, 0 based on Foata normal form. 4/29 useless extension candidates. Maximal degree in co-relation 118. Up to 8 conditions per place. [2021-04-29 05:52:25,311 INFO L132 encePairwiseOnDemand]: 48/56 looper letters, 0 selfloop transitions, 0 changer transitions 23/23 dead transitions. [2021-04-29 05:52:25,311 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 23 transitions, 235 flow [2021-04-29 05:52:25,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-04-29 05:52:25,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-04-29 05:52:25,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 295 transitions. [2021-04-29 05:52:25,313 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4788961038961039 [2021-04-29 05:52:25,313 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 295 transitions. [2021-04-29 05:52:25,313 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 295 transitions. [2021-04-29 05:52:25,313 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 05:52:25,313 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 295 transitions. [2021-04-29 05:52:25,314 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 26.818181818181817) internal successors, (295), 11 states have internal predecessors, (295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:25,315 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 56.0) internal successors, (672), 12 states have internal predecessors, (672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:25,315 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 56.0) internal successors, (672), 12 states have internal predecessors, (672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:25,315 INFO L185 Difference]: Start difference. First operand has 50 places, 31 transitions, 230 flow. Second operand 11 states and 295 transitions. [2021-04-29 05:52:25,316 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 23 transitions, 235 flow [2021-04-29 05:52:25,317 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 23 transitions, 183 flow, removed 0 selfloop flow, removed 10 redundant places. [2021-04-29 05:52:25,317 INFO L241 Difference]: Finished difference. Result has 44 places, 0 transitions, 0 flow [2021-04-29 05:52:25,317 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=136, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=0, PETRI_PLACES=44, PETRI_TRANSITIONS=0} [2021-04-29 05:52:25,318 INFO L343 CegarLoopForPetriNet]: 46 programPoint places, -2 predicate places. [2021-04-29 05:52:25,318 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 05:52:25,318 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 44 places, 0 transitions, 0 flow [2021-04-29 05:52:25,318 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 44 places, 0 transitions, 0 flow [2021-04-29 05:52:25,318 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-04-29 05:52:25,318 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-04-29 05:52:25,319 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 05:52:25,319 INFO L84 FinitePrefix]: Finished finitePrefix Result has 0 conditions, 0 events. 0/0 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 0. Compared 0 event pairs, 0 based on Foata normal form. 0/0 useless extension candidates. Maximal degree in co-relation 0. Up to 0 conditions per place. [2021-04-29 05:52:25,319 INFO L146 LiptonReduction]: Number of co-enabled transitions 0 [2021-04-29 05:52:25,319 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 05:52:25,319 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 05:52:25,319 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1 [2021-04-29 05:52:25,320 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-04-29 05:52:25,320 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 26.11111111111111) internal successors, (235), 9 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 05:52:25,320 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-04-29 05:52:25,325 INFO L202 PluginConnector]: Adding new model ticket-4.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.04 05:52:25 BasicIcfg [2021-04-29 05:52:25,325 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-04-29 05:52:25,326 INFO L168 Benchmark]: Toolchain (without parser) took 19918.41 ms. Allocated memory was 302.0 MB in the beginning and 524.3 MB in the end (delta: 222.3 MB). Free memory was 272.0 MB in the beginning and 240.2 MB in the end (delta: 31.7 MB). Peak memory consumption was 254.7 MB. Max. memory is 16.0 GB. [2021-04-29 05:52:25,326 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.77 ms. Allocated memory is still 302.0 MB. Free memory was 273.1 MB in the beginning and 273.0 MB in the end (delta: 70.3 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-04-29 05:52:25,326 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.62 ms. Allocated memory is still 302.0 MB. Free memory was 269.0 MB in the beginning and 267.5 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-04-29 05:52:25,326 INFO L168 Benchmark]: Boogie Preprocessor took 16.88 ms. Allocated memory is still 302.0 MB. Free memory was 267.5 MB in the beginning and 266.6 MB in the end (delta: 917.2 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-04-29 05:52:25,326 INFO L168 Benchmark]: RCFGBuilder took 381.99 ms. Allocated memory is still 302.0 MB. Free memory was 266.5 MB in the beginning and 276.9 MB in the end (delta: -10.4 MB). Peak memory consumption was 5.1 MB. Max. memory is 16.0 GB. [2021-04-29 05:52:25,327 INFO L168 Benchmark]: TraceAbstraction took 19444.25 ms. Allocated memory was 302.0 MB in the beginning and 524.3 MB in the end (delta: 222.3 MB). Free memory was 276.5 MB in the beginning and 240.2 MB in the end (delta: 36.3 MB). Peak memory consumption was 260.5 MB. Max. memory is 16.0 GB. [2021-04-29 05:52:25,327 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.77 ms. Allocated memory is still 302.0 MB. Free memory was 273.1 MB in the beginning and 273.0 MB in the end (delta: 70.3 kB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 34.62 ms. Allocated memory is still 302.0 MB. Free memory was 269.0 MB in the beginning and 267.5 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 16.88 ms. Allocated memory is still 302.0 MB. Free memory was 267.5 MB in the beginning and 266.6 MB in the end (delta: 917.2 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 381.99 ms. Allocated memory is still 302.0 MB. Free memory was 266.5 MB in the beginning and 276.9 MB in the end (delta: -10.4 MB). Peak memory consumption was 5.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 19444.25 ms. Allocated memory was 302.0 MB in the beginning and 524.3 MB in the end (delta: 222.3 MB). Free memory was 276.5 MB in the beginning and 240.2 MB in the end (delta: 36.3 MB). Peak memory consumption was 260.5 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1955.7ms, 45 PlacesBefore, 46 PlacesAfterwards, 32 TransitionsBefore, 33 TransitionsAfterwards, 456 CoEnabledTransitionPairs, 4 FixpointIterations, 1 TrivialSequentialCompositions, 17 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 18 TotalNumberOfCompositions, 2223 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 639, positive: 540, positive conditional: 540, positive unconditional: 0, negative: 99, negative conditional: 99, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 368, positive: 317, positive conditional: 0, positive unconditional: 317, negative: 51, negative conditional: 0, negative unconditional: 51, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 368, positive: 317, positive conditional: 0, positive unconditional: 317, negative: 51, negative conditional: 0, negative unconditional: 51, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 368, positive: 242, positive conditional: 0, positive unconditional: 242, negative: 126, negative conditional: 0, negative unconditional: 126, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 126, positive: 75, positive conditional: 0, positive unconditional: 75, negative: 51, negative conditional: 0, negative unconditional: 51, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 713, positive: 352, positive conditional: 0, positive unconditional: 352, negative: 362, negative conditional: 0, negative unconditional: 362, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 639, positive: 223, positive conditional: 223, positive unconditional: 0, negative: 48, negative conditional: 48, negative unconditional: 0, unknown: 368, unknown conditional: 368, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 368, Positive cache size: 317, Positive conditional cache size: 317, Positive unconditional cache size: 0, Negative cache size: 51, Negative conditional cache size: 51, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 30.6ms, 45 PlacesBefore, 36 PlacesAfterwards, 31 TransitionsBefore, 31 TransitionsAfterwards, 242 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 368, Positive cache size: 317, Positive conditional cache size: 317, Positive unconditional cache size: 0, Negative cache size: 51, Negative conditional cache size: 51, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 94.5ms, 39 PlacesBefore, 34 PlacesAfterwards, 50 TransitionsBefore, 50 TransitionsAfterwards, 176 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 368, Positive cache size: 317, Positive conditional cache size: 317, Positive unconditional cache size: 0, Negative cache size: 51, Negative conditional cache size: 51, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 102.5ms, 39 PlacesBefore, 39 PlacesAfterwards, 71 TransitionsBefore, 71 TransitionsAfterwards, 200 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 368, Positive cache size: 317, Positive conditional cache size: 317, Positive unconditional cache size: 0, Negative cache size: 51, Negative conditional cache size: 51, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 106.2ms, 44 PlacesBefore, 44 PlacesAfterwards, 85 TransitionsBefore, 85 TransitionsAfterwards, 202 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 368, Positive cache size: 317, Positive conditional cache size: 317, Positive unconditional cache size: 0, Negative cache size: 51, Negative conditional cache size: 51, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 124.1ms, 46 PlacesBefore, 46 PlacesAfterwards, 95 TransitionsBefore, 95 TransitionsAfterwards, 212 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 368, Positive cache size: 317, Positive conditional cache size: 317, Positive unconditional cache size: 0, Negative cache size: 51, Negative conditional cache size: 51, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 124.4ms, 49 PlacesBefore, 49 PlacesAfterwards, 104 TransitionsBefore, 104 TransitionsAfterwards, 200 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 368, Positive cache size: 317, Positive conditional cache size: 317, Positive unconditional cache size: 0, Negative cache size: 51, Negative conditional cache size: 51, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 140.9ms, 54 PlacesBefore, 54 PlacesAfterwards, 112 TransitionsBefore, 112 TransitionsAfterwards, 204 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 368, Positive cache size: 317, Positive conditional cache size: 317, Positive unconditional cache size: 0, Negative cache size: 51, Negative conditional cache size: 51, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 209.3ms, 60 PlacesBefore, 60 PlacesAfterwards, 155 TransitionsBefore, 155 TransitionsAfterwards, 270 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 368, Positive cache size: 317, Positive conditional cache size: 317, Positive unconditional cache size: 0, Negative cache size: 51, Negative conditional cache size: 51, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 123.1ms, 64 PlacesBefore, 64 PlacesAfterwards, 152 TransitionsBefore, 152 TransitionsAfterwards, 192 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 368, Positive cache size: 317, Positive conditional cache size: 317, Positive unconditional cache size: 0, Negative cache size: 51, Negative conditional cache size: 51, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 101.8ms, 65 PlacesBefore, 65 PlacesAfterwards, 155 TransitionsBefore, 155 TransitionsAfterwards, 192 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 368, Positive cache size: 317, Positive conditional cache size: 317, Positive unconditional cache size: 0, Negative cache size: 51, Negative conditional cache size: 51, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 140.0ms, 70 PlacesBefore, 70 PlacesAfterwards, 183 TransitionsBefore, 183 TransitionsAfterwards, 228 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 368, Positive cache size: 317, Positive conditional cache size: 317, Positive unconditional cache size: 0, Negative cache size: 51, Negative conditional cache size: 51, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 134.2ms, 76 PlacesBefore, 76 PlacesAfterwards, 193 TransitionsBefore, 193 TransitionsAfterwards, 232 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 368, Positive cache size: 317, Positive conditional cache size: 317, Positive unconditional cache size: 0, Negative cache size: 51, Negative conditional cache size: 51, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 166.8ms, 79 PlacesBefore, 79 PlacesAfterwards, 217 TransitionsBefore, 217 TransitionsAfterwards, 256 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 368, Positive cache size: 317, Positive conditional cache size: 317, Positive unconditional cache size: 0, Negative cache size: 51, Negative conditional cache size: 51, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 170.7ms, 87 PlacesBefore, 87 PlacesAfterwards, 228 TransitionsBefore, 228 TransitionsAfterwards, 256 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 368, Positive cache size: 317, Positive conditional cache size: 317, Positive unconditional cache size: 0, Negative cache size: 51, Negative conditional cache size: 51, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 172.0ms, 88 PlacesBefore, 88 PlacesAfterwards, 235 TransitionsBefore, 235 TransitionsAfterwards, 258 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 368, Positive cache size: 317, Positive conditional cache size: 317, Positive unconditional cache size: 0, Negative cache size: 51, Negative conditional cache size: 51, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 169.9ms, 91 PlacesBefore, 91 PlacesAfterwards, 238 TransitionsBefore, 238 TransitionsAfterwards, 252 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 368, Positive cache size: 317, Positive conditional cache size: 317, Positive unconditional cache size: 0, Negative cache size: 51, Negative conditional cache size: 51, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 125.2ms, 95 PlacesBefore, 95 PlacesAfterwards, 234 TransitionsBefore, 234 TransitionsAfterwards, 252 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 368, Positive cache size: 317, Positive conditional cache size: 317, Positive unconditional cache size: 0, Negative cache size: 51, Negative conditional cache size: 51, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 177.6ms, 97 PlacesBefore, 97 PlacesAfterwards, 237 TransitionsBefore, 237 TransitionsAfterwards, 256 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 368, Positive cache size: 317, Positive conditional cache size: 317, Positive unconditional cache size: 0, Negative cache size: 51, Negative conditional cache size: 51, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 157.0ms, 95 PlacesBefore, 95 PlacesAfterwards, 237 TransitionsBefore, 237 TransitionsAfterwards, 254 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 368, Positive cache size: 317, Positive conditional cache size: 317, Positive unconditional cache size: 0, Negative cache size: 51, Negative conditional cache size: 51, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 141.7ms, 98 PlacesBefore, 98 PlacesAfterwards, 230 TransitionsBefore, 230 TransitionsAfterwards, 236 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 368, Positive cache size: 317, Positive conditional cache size: 317, Positive unconditional cache size: 0, Negative cache size: 51, Negative conditional cache size: 51, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 127.5ms, 98 PlacesBefore, 98 PlacesAfterwards, 220 TransitionsBefore, 220 TransitionsAfterwards, 218 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 368, Positive cache size: 317, Positive conditional cache size: 317, Positive unconditional cache size: 0, Negative cache size: 51, Negative conditional cache size: 51, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 129.4ms, 103 PlacesBefore, 103 PlacesAfterwards, 225 TransitionsBefore, 225 TransitionsAfterwards, 218 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 368, Positive cache size: 317, Positive conditional cache size: 317, Positive unconditional cache size: 0, Negative cache size: 51, Negative conditional cache size: 51, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 125.8ms, 104 PlacesBefore, 104 PlacesAfterwards, 221 TransitionsBefore, 221 TransitionsAfterwards, 206 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 368, Positive cache size: 317, Positive conditional cache size: 317, Positive unconditional cache size: 0, Negative cache size: 51, Negative conditional cache size: 51, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 113.3ms, 110 PlacesBefore, 110 PlacesAfterwards, 211 TransitionsBefore, 211 TransitionsAfterwards, 176 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 368, Positive cache size: 317, Positive conditional cache size: 317, Positive unconditional cache size: 0, Negative cache size: 51, Negative conditional cache size: 51, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 107.0ms, 114 PlacesBefore, 114 PlacesAfterwards, 214 TransitionsBefore, 214 TransitionsAfterwards, 176 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 368, Positive cache size: 317, Positive conditional cache size: 317, Positive unconditional cache size: 0, Negative cache size: 51, Negative conditional cache size: 51, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 57.4ms, 123 PlacesBefore, 118 PlacesAfterwards, 178 TransitionsBefore, 178 TransitionsAfterwards, 174 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 368, Positive cache size: 317, Positive conditional cache size: 317, Positive unconditional cache size: 0, Negative cache size: 51, Negative conditional cache size: 51, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 63.0ms, 119 PlacesBefore, 119 PlacesAfterwards, 172 TransitionsBefore, 172 TransitionsAfterwards, 166 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 368, Positive cache size: 317, Positive conditional cache size: 317, Positive unconditional cache size: 0, Negative cache size: 51, Negative conditional cache size: 51, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 88.3ms, 126 PlacesBefore, 126 PlacesAfterwards, 158 TransitionsBefore, 158 TransitionsAfterwards, 146 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 368, Positive cache size: 317, Positive conditional cache size: 317, Positive unconditional cache size: 0, Negative cache size: 51, Negative conditional cache size: 51, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 46.5ms, 125 PlacesBefore, 125 PlacesAfterwards, 135 TransitionsBefore, 135 TransitionsAfterwards, 142 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 368, Positive cache size: 317, Positive conditional cache size: 317, Positive unconditional cache size: 0, Negative cache size: 51, Negative conditional cache size: 51, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 39.1ms, 114 PlacesBefore, 114 PlacesAfterwards, 111 TransitionsBefore, 111 TransitionsAfterwards, 104 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 368, Positive cache size: 317, Positive conditional cache size: 317, Positive unconditional cache size: 0, Negative cache size: 51, Negative conditional cache size: 51, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 15.0ms, 103 PlacesBefore, 95 PlacesAfterwards, 58 TransitionsBefore, 58 TransitionsAfterwards, 10 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 368, Positive cache size: 317, Positive conditional cache size: 317, Positive unconditional cache size: 0, Negative cache size: 51, Negative conditional cache size: 51, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7.3ms, 68 PlacesBefore, 68 PlacesAfterwards, 35 TransitionsBefore, 35 TransitionsAfterwards, 4 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 368, Positive cache size: 317, Positive conditional cache size: 317, Positive unconditional cache size: 0, Negative cache size: 51, Negative conditional cache size: 51, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5.0ms, 51 PlacesBefore, 50 PlacesAfterwards, 31 TransitionsBefore, 31 TransitionsAfterwards, 2 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 368, Positive cache size: 317, Positive conditional cache size: 317, Positive unconditional cache size: 0, Negative cache size: 51, Negative conditional cache size: 51, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.1ms, 44 PlacesBefore, 0 PlacesAfterwards, 0 TransitionsBefore, 0 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 368, Positive cache size: 317, Positive conditional cache size: 317, Positive unconditional cache size: 0, Negative cache size: 51, Negative conditional cache size: 51, Negative unconditional cache size: 0 - PositiveResult [Line: 80]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 39 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 9.1ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 19301.3ms, OverallIterations: 34, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 11025.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 2111.4ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 63 SDtfs, 118 SDslu, 12 SDs, 0 SdLazy, 3921 SolverSat, 743 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2651.6ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 307 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 242 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 180 ImplicationChecksByTransitivity, 1413.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=5447occurred in iteration=25, InterpolantAutomatonStates: 258, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 73.0ms SsaConstructionTime, 326.2ms SatisfiabilityAnalysisTime, 1695.1ms InterpolantComputationTime, 646 NumberOfCodeBlocks, 646 NumberOfCodeBlocksAsserted, 34 NumberOfCheckSat, 612 ConstructedInterpolants, 0 QuantifiedInterpolants, 1794 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 34 InterpolantComputations, 34 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...